MOTOREX Magazine 2025 129 EN

WORLD OF MOTOREX Nº 129 motorex.com
SUCCESSFUL 360°
PARTNERSHIP
Kawasaki Racing Team
MXGP and MOTOREX
HYDROPOWER
Systematically harnessing
sustainable solutions
INDUSTRY
Bultech: Trademark precision
and efficiency
RAIL TRANSMISSIONS
Clear track ahead with
PENTA CT SAE 75W/90 at Stadler Rail

MOTOREX MAGAZINE Nº 129 SPRING 2025
EDITORIAL
HOW COMPETITION
DRIVES INNOVATION
#RACEPROVEN
10 MOTOREX × KAWASAKI 30
RACING TEAM MXGP
SPOTLIGHTS
04 News from MOTOREX
SUSTAINABLE PERFORMANCE
06 Harnessing the power of water
#RACEPROVEN
10 Kawasaki Racing Team MXGP
TECHNOLOGY & INNOVATION
16 Gas motor oil: Are you using
the right one?
18 Precision and efficiency at Bultech
22 Grease—for great lubrication
26 Fresh cheeses the smooth way
30 High-performance transmissions
by Stadler Rail
40 Practical tips
CHALLENGE THE LIMITS
36 Taking U-328 under their wing
AROUND THE WORLD
34 Network of professional testing labs
42 Infospots, puzzle
26
© Markus Schälli
TECHNOLOGY & INNOVATION
HIGH-PERFORMANCE TRANSMISSIONS
BY STADLER RAIL
TECHNOLOGY & INNOVATION
“I ASSOCIATE MOTOREX
WITH QUALITY AND SWISS
RELIABILITY.”
Sporting competitions have
always held a fascination
for humanity. Racing is
the perfect example of how
peak human performance is
increasingly crossing over with
forward-looking technology.
What seemed more or less impossible
just a short time ago
is suddenly becoming reality.
This shift in the boundaries of
performance is both a challenge
and an inspiration.
The challenges, in particular,
have provided material for
plenty of stories, such as that
of our longstanding partnership
with Kawasaki's official
MXGP team. Time and again, for
over 25 years, we have been
overcoming fresh hurdles together.
This has not only forged
a bond between us and brought
us success in races, it has also
yielded valuable information that benefits
our customers. Just as sportspeople are
always improving their performance by
disciplined training, we have consistently
grown as a result of our partnership with
Kawasaki. Today it covers a broad spectrum
of business areas. Our consistent, partnership-based
relationship with customers
from a wide range of industries is also evidence
of responsible business behavior. At
the same time it is an expression of the
values MOTOREX upholds, such as professional
expertise, quality and reliability—
yesterday, today and tomorrow.
The systematic demand for improvement
has also resulted in another exciting cooperative
venture: a comprehensive global
partnership with French motorcycle manufacturer
Sherco. This partnership enjoys a
high profile, both in motor racing and in
terms of MOTOREX’s role as an OEM in the
international bike market, and brings with
it the challenge of achieving new best performances
together. But the actual roots of
the partnership are in production and trade,
where close cooperation leads to efficient
and stable processes and the development
of high-quality products. In terms of trade,
coordinated strategies permit marketing
that is geared to customer needs.
This is exactly what connects us to all our
partners in a wide range of industries. They
motivate us to keep thinking and improving,
just like in sport, which always shows the
potential of what’s possible. The interaction
between people and innovative technology
does not just lead to peak performances,
but step-by-step to a future rich in opportunities.
I hope you'll find this latest edition interesting
reading.
Andreas Vetter
Director of Powersports
Impressum
Editor:
MOTOREX AG
Bern-Zürich-Strasse 31
CH-4901 Langenthal
Tel. +41 62 919 75 75
Fax +41 62 919 75 95
www.motorex.com
Customer service by phone. Advice and problem solving also in German, French and Italian Overall responsibility
for content: David Bucher Language versions: Published in German, English, French and Swedish. Total print
run: 50,000 copies Concept, editing and art direction: Aeschlimann, Advertising Concepts and PR GmbH,
Gümligen Translation: BMP Translations AG, Basel Cover photo: Romain Febvre, Kawasaki Racing Team MXGP,
© ICE 1 Racing Graphics and prepress: Burki Scherer AG, Oftringen Printing: merkur medien ag, Langenthal.
Text contributions may be used when source is indicated. MOTOREX ® and all employed product names are
internationally protected trade marks. No responsibility is accepted for factual errors, printing errors or changes
in the technical data. In general, always be sure to follow workplace health and safety rules and recycle properly.

MOTOREX MAGAZINE 4
SPOTLIGHTS
Text: Martin Aeschlimann
MOTOREX MAGAZINE 5
SUSTAINABLE SAFETY WITH
BRAKE FLUID DOT 4
MOTOREX's BRAKE FLUID DOT 4 combines
safety with sustainability. The innovative
brake fluid is exempt from GHS
labeling requirements, and is also biodegradable
and compliant with the hitherto
satisfied DOT 4 standard. BRAKE
FLUID DOT 4 contains no borate esters
and is both non-toxic and significantly
safer to handle. It meets OECD 301 biodegradability
standards and makes a
welcome contribution to reducing critical
waste. With a wet boiling point of 160 °C
and a dry boiling point of 260 °C, BRAKE
FLUID DOT 4 guarantees safe braking
even under heavy stresses. The low viscosity
means brake inputs are transmitted
rapidly and ensures a rapid response
from ABS and ESP.
GO TO PRODUCT
motorex.com/brakefluiddot4
SPECIAL-PURPOSE GREASE
FOR FORK SEALS
Professional strut or fork servicing that
includes seal replacement lays the foundations
for optimal shock absorption by
sports bicycles. Particular care and the
right lubricants are the key ingredients.
SUSPENSION GREASE optimizes the response
of suspension forks and struts. It
contains friction-reducing additives that
minimize stick-slip (in other words jerkiness),
reduce breakaway torque and ensure
smoother movement. It improves
control particularly when the bicycle is
exposed to rapid shocks. The grease is
water-repellent, and temperature-resistant
in a range from –30 to +110 °C. It has
been formulated for full compatibility
with the elastomers, O-rings, fork oils
and surface coatings used on bicycles
and is suitable for professionals and experienced
users.
Photo: © tschuemperlin-ag.ch
EFFICIENT AND SUSTAINABLE
CONCRETE RELEASE
Factors such as process reliability, cost,
quality and sustainability make a major
contribution to successful outcomes in
industrial concrete element production.
CONFORM ECO 7100 ready-to-use release
agent simplifies the release process
and contributes to high-quality concrete
elements and fair-faced concrete by providing
residue-free results. Novel additives
ensure rapid air bleeding and highquality
results. CONFORM ECO 7100 is
biodegradable according to OECD 301 B
and suitable for all common types of
shuttering (metal, plastic and wood).
Since it is free from solvents containing
VOCs, it releases no vapors and improves
health protection. By doing so, this rapidly
biodegradable release agent not only
makes an active contribution to occupational
safety, it also offers an environmentfriendly
alternative to conventional release
agents.
Photo: © EdoPhoto
COLLABORATION WITH POTENTIAL: SHERCO × MOTOREX
French motorcycle manufacturer Sherco has sealed a long-term partnership with MOTOREX as its official lubricant
partner. Sherco is famous for its hugely agile trial and enduro bikes. Headquartered in the French city of Nîmes
and founded in 1998, the company is still successfully managed by its founder, former professional trial rider Marc
Teissier. Nearly 20,000 motorcycles are produced each year and sold in over 74 countries worldwide. The partnership
has already been successfully put to the test in the 2025 Dakar Rally, providing tangible proof of both partners’
commitment to perfection. The global partnership covers a broad spectrum: MOTOREX is the new factory-fill
supplier for all series-production Sherco bikes and will give the brand across-the-board support for its wide-ranging
racing activities. Furthermore, Sherco’s production equipment will use MOTOREX industrial lubricants. And to top
it off, the synergies between the two partners will be harnessed to benefit customers in the global market.
2025 UCI MOUNTAIN BIKE WORLD CHAMPIONSHIPS—
A SUPERLATIVE SPECTACLE !
The ultimate showdown between the world’s best cyclists? An endurance
test for humans and bikes? Or just the biggest international bicycle
festival? The 2025 Mountain Bike World Championships, due to
take place in the Swiss canton of Valais from August 30 to September 14,
are all that and much more. This year’s event is the first time the UCI
(Union Cycliste Internationale, the sport’s governing body) has brought
all eight mountain biking disciplines together in the same region. It’s
a historic moment for the sport. And, as an Official Supplier, MOTOREX
will be in the thick of the action. This will be the fourth time that the
Swiss lubricant, cleaning and care products specialist has supported
the championships.
GO TO PRODUCT
motorex.com/conform-eco-7100
As an Official Supplier, MOTOREX will be taking its passion for mountain
biking straight to the audience:
GO TO PRODUCT
motorex.com/suspension-grease
I Mountain bike washing and servicing station
I Advice from experts
I Competitions and promotions
OFFICIAL SUPPLIER
We’ll see you there! More information at valais2025.ch.

MOTOREX MAGAZINE 6
SUSTAINABLE PERFORMANCE
HARNESSING THE
POWER OF WATER
MOTOREX MAGAZINE 7
Text: Klaus Larock, Photos: swv.ch, HaSe, CC BY-SA 4.0, commons.wikimedia.org, bristolport.co.uk
135
million households in
Europe supplied with
electricity from hydroelectric
plants in 2022
Source: statista.com
It is impossible to overstate the
importance of hydroelectric
power in this CO 2 -aware age.
This emission-free, renewable
source of energy is widely used
throughout Europe. In turbines
and other systems, rapidly biodegradable
hydraulic oils from
MOTOREX make an important
contribution to fully sustainable
power generation.
The principle of using the kinetic energy contained
in water is nearly as old as humanity itself. The
same energy that once drove watermills now generates
about 16 percent of the world’s electricity
according to the International Energy Agency (IEA).
This makes hydroelectric power the biggest renewable
source of energy worldwide. The European
leaders in CO 2 -free hydroelectric power generation
include countries such as Norway (over 95
percent), Austria (approximately 60 percent), Switzerland
(approximately 55 percent) and Sweden
(around 40 percent).
Optimized efficiency
Hydroelectric power has continued to gain importance
in recent decades. New technologies are
improving efficiency and delivering measurable
growth in output. In particular, pumped-storage
power plants work like a kind of “liquid battery”,
storing surplus energy that they can then return
to the grid when needed. However, there is limited
scope to expand large-scale hydroelectricity plants.
At the same time, lubricants are affected by the
general tightening of environmental standards.
> 80
percent: amount by
which ECOSYNT HEES
biodegrades within
28 days
5,000 *
hydroelectric plants of
various sizes and capacities
across Europe
*Estimate
Installation of a Francis turbine for
a run-of-the-river power plant.
End-to-end sustainability
Responsibility for lubricants lies with the power
plant operator. Wherever hydraulic systems are
installed in or around water—on locks, swing
bridges, sewage treatment plants or port installations,
for example—hydraulic oils transmit enormous
forces under demanding operating conditions.
Hydraulic oil is also used to lubricate turbines
that are not filled for life. Hydropower specialists
regard rapidly biodegradable hydraulic oil as the
smart default choice. After all, if a non-environmentally
compatible lubricant escapes unnoticed
into the water, the consequences can be potentially
devastating.

MOTOREX MAGAZINE 8
Ideal for applications in and
around water (clockwise)
ECOSYNT HEES in Höllenstein
run-of-the-river power plant, the
Hausen lock, Pulling power plant
with fish ladder (all in Germany)
and the flood-defense dock
gates at the Port of Bristol (UK).
MOTOREX MAGAZINE 9
“Sustainable hydroelectric power gen -
e ration relies on the environment-friendly
solutions that are available these days
and on innovative suppliers.”
Andreas Stettler, Managing Director,
Swiss Association for Water Management
Proven endurance
Operational safety is the primary focus of all system-related
applications. Hydraulic systems and
lubricant technology both have an important role
to play here. High performance and long service
lives combined with the added value of rapid
biodegradability to OECD 301 B standards make
ECOSYNT HEES and ECOSYNT HEPR hydraulic oils
the natural choice for the applications described
above. Both comply with EAL (Environmentally
Acceptable Lubricant) standards for biodegradability,
toxicity and bioaccumulation, which means
that they have minimal adverse consequences in
the aquatic environment. Both also meet a range
of specifications and can be used across a broad
variety of applications. They are also suitable for
salt water applications.
In use throughout Europe
For each application, MOTOREX draws up a custom
lubrication profile that takes account of all the
infrastructure manufacturers’ specific parameters
and requirements. End-to-end sustainability
is promoted not only by the company’s biodegradable
hydraulic oils, but also other biodegradable
and highly environmentally-friendly products such
as gear oils, greases, chain lubricants, cleaners and
sprays. Moreover, on-site consultations and regular
laboratory testing of lubricant samples deliver
accurate information on the condition of both
machinery and lubricants. The duration of long-life
use is also derived from these. As a concept, it
has won over many plant operators and proven
successful across Europe.
GO TO PRODUCT
motorex.com/hydraulicoil
EAL * LUBRICANTS
ARE ESSENTIAL
FOR SUSTAINABLE
HYDROELECTRICITY
*Environmentally Acceptable Lubricants

MOTOREX
AND
KAWASAKI
RACING
TEAM MXGP
#RACEPROVEN
SUCCESS
FROM 360
DEGREE
PARTNER-
SHIP
MOTOREX MAGAZINE 11
Text: Jonty Edwards, Photos: ICE1 Racing
Success—either in business or on the racetrack—
is made and lost with the right partners. Companies
want more than just suppliers. They want
partners who share their visions and values, and
provide long-term active input. Working as a team
on quality and innovation is essential, as is trust,
particularly when the shared goal is success on
the track.
Kawasaki Racing Team MXGP has been relying on
MOTOREX expertise and quality for over 25 years.
The partnership is about more than just winning
races. It also combines tradition and innovation
in the 360° perspective of two strong brands.
Both are highly specialized, have over a century’s
experience and boast an impressive track record
in motor sports. The longstanding partnership is
based on shared values and the crucial trust already
referred to above. Even when Kawasaki
restructured its team before the 2022 FIM Motocross
World Championship, its relationship with
MOTOREX was never in doubt.

MOTOREX MAGAZINE 12
Each race win is the result of many
people’s knowledge and abilities.
MOTOREX has always put the shine on team results.
MXGP riders at the top of their
game always go the extra mile.
Experienced and ambitious
The Kawasaki Racing Team MXGP, which is owned
by legendary racing driver and former Formula
One World Champion Kimi Räikkönen, goes into
each MXGP race determined to win. Team manager
Antti Pyrhönen, himself an experienced FIM Motocross
World Championship competitor, is in charge
of day-to-day business. Between them, Kimi and
Antti have enormous experience and have been
successfully leading their MXGP team for over ten
years. “Our partnership with MOTOREX shows just
how important close cooperation is for success.
The chemistry between us is just right. The right
motor oil will bring out an engine’s full performance
and provide certainty even under extreme
stress. And that’s the key to top performance”,
Pyrhönen explains. “Furthermore, we benefit from
MOTOREX's many tried-and-tested, highly efficient
care products. They save us valuable time
in crucial moments, as well as conserving materials.
That pays off time and again”.
Teamwork for maximum performance
In the motor sports world, custom solutions tend
to be the rule rather than the exception. The task
for MOTOREX's development department was
therefore to develop, test and then manufacture
a motor oil that was perfectly aligned with Kawasaki’s
requirements. The work focused on maximum
performance and guaranteed reliability.
MOTOREX's chemists dealt with this challenging
task, the lubrication technology equivalent of a
high wire act, masterfully and in close cooperation
with the race team. Since then the engines have
been renowned for their proverbial Swiss reliability.
ROMAIN FEBVRE
WILL BE LETTING IT
RIP AGAIN IN 2025.
GO TO MOVIE
l.ead.me/bfnil8

MOTOREX MAGAZINE 14
“Our longstanding partnership with
MOTOREX is a key success factor.”
Antti Pyrhönen, Team Manager
Romain Febvre: The
34-year-old professional
Motocross rider from
France won the MXGP
World Championship in
2015 and is famous for
his tenacious determination
and exciting riding.
> 25
years of 360° partnership
1,440
liters of motor oil helped deliver
top performance in 2024
23
people committed to their
team’s success
MOTOREX MAGAZINE 15
In-house manufacturing
using MOTOREX
metalworking fluids.
The motor racing roots of team owner and former Formula One World
Champion Kimi Räikkönen are omnipresent at team headquarters in the
Belgian town of Lommel.
Reliable and powerful:
a ready-to-go MXGP engine.
Partnership beyond the racetrack
Not only did MOTOREX develop the ideal engine
oil for the Kawasaki KX 450 SR, it supplies the
team with everything needed to maintain and
prepare the bikes. The knowledge gained from
the partnership with Kawasaki and other elite
race teams is channeled directly into product development.
This guarantees that every MOTOREX
user worldwide can enjoy the company's much
lauded #raceproven quality. The Kawasaki Racing
Team MXGP makes bespoke aluminum and titanium
components for its bikes at its state-of-theart
workshop in the Belgian town of Lommel.
Unfortunately, the product recommended by the
manufacturer of the machining equipment as a
machining fluid and tool lubricant tended to foam
when it came into contact with water from the
machines’ water feeds. In turn, this had a negative
impact on the quality of the parts. MOTOREX
analyzed the machining fluid and water used in
the machines and resolved the challenge with
SWISSCOOL 8000. Even though production was
irregular—i.e. the machines were idle for lengthy
periods—the machining fluid satisfied the demanding
requirements for parts manufacture in
full. Not only was the foaming problem solved, it
was possible to sustainably optimize the entire
production process.
Race wins and ambitions
Of course the partnership is about more than just
overcoming challenges together. Everything revolves
around coveted race victories. These certainly
include Romain Febvre’s five successive
wins in the 2023 World Championship, which
catapulted him to an impressive second place in
the overall rankings. Febvre was also a key figure
in Team France’s victory in the prestigious 2023
FIM Motocross of Nations. MOTOREX’s innovative
solutions and expertise have repeatedly played
Kawasaki Racing Team MXGP
Lommel
a role in the Kawasaki team’s successes and highlight
not only the importance of technical support,
but also the outstanding teamwork without which
these successes would not have been possible in
the first place.
Looking ahead to 2025
The Kawasaki Racing Team MXGP has put together
its strongest stable of riders yet for the 2025 season
and, for the first time, is also expanding its
activities into the MX2 World Championship. Former
FIM Motocross world champions Romain
Febvre (France) and Pauls Jonass (Latvia) will be
competing in the MXGP on built-to-win Kawasaki
KX 450 SRs. Current EMX250 champion, Frenchman
Mathis Valin, will be bolstering the team in the MX2
class on a Kawasaki KX 250.
MOTOREX’s partnership with a top team underscores
the company’s outstanding ability to supply
first-class lubricants that are a perfect match
for leading motorcycle manufacturers’ strict requirements
and for the renowned precision and
quality of Japanese technologies. This cooperation
confirms MOTOREX’s global standing as a key
partner to companies that demand reliable performance
and top standards. The perfect combination
for a successful 360-degree partnership.

MOTOREX MAGAZINE 16
TECHNOLOGY & INNOVATION
ARE YOU USING THE
RIGHT GAS MOTOR OIL?
Text: Klaus Larock
> 90 %
— the overall efficiency of a
modern NG engine
24
cylinders are at work in large NG
engines, often for 24 hours a day
MOTOREX MAGAZINE 17
Whereas the average output of NG engine-powered
generator sets was once 50 to 500 kW, it is now 500 kW
to 9 MW*. Progress in combustion technology, typified
by high-pressure and high-temperature technologies,
has increased efficiency and reduced emissions. The
combustion of natural gas and other gases obtained
from natural sources (“special gases”), such as refined
or crude biogas, digester gas, landfill gas, methane
and wood gas produces acidic combustion products
that have to be absorbed and neutralized by the engine’s
motor oil. Consequently, the following factors
are key when selecting a suitable motor oil:
1,970 °C
—the temperature at which NG
combusts in a gas engine
I Engine type / installed materials
I NG / NG quality used
I Exhaust aftertreatment
I Duty type
I Experience / repairs
I Installation history / oil analyses
AS ENGINE EXPERTISE IN LIQUID FORM:
MOTOREX EVOLUBE.
Stationary and mobile NG engines are crucial to electricity and heat generation.
Modern, generally large-displacement natural gas (NG) engines are
used in modular systems to generate electricity and heat. They have
now achieved peak levels of overall efficiency. The different gaseous
fuels and engine designs require special motor oils.
Focus on deposits
If sooting hydrocarbon molecules of the type found
abundantly in special gases are combusted, there is
a high risk of deposits forming on pistons and valves
if an unsuitable engine oil is used. If coke builds up
on valves or if piston rings seize in their grooves, the
engine will quickly lose its equilibrium.
Qualified NG motor oils
MOTOREX's EVOLUBE range is the professional solution
for all NG engine needs. The high-grade, extremely
temperature-resistant formulations use monograde
base oils. Combined with innovative additives—some
particularly low-ash, depending on the product—all
EVOLUBE motor oils exhibit beneficial features such as
I High heat resistance
I Outstanding oxidation stability
I Lasting neutralization
I Low evaporation loss
The NG motor oils are precisely tailored to the requirements
of all popular engine manufacturers.
* Average annual energy requirement of 20,000 single-family
homes in Europe
Advice and support
Whether your installation is large or small, has a naturally
aspirated or turbocharged engine with aluminum
or steel cylinders and possibly even a multi-stage
exhaust aftertreatment system, MOTOREX will support
you every step along the way as you evaluate the optimal
lubricant for each case. This will follow a prescribed
sequence involving an on-site visit and take
account of the full history of the installation. The
service package also includes periodic oil analyses
—a key factor in ensuring trouble-free, efficient NG
engine operation. Contact your MOTOREX partner
for more information.
GO TO PRODUCT
motorex.com/gasengineoil

MOTOREX MAGAZINE 18
50 %
longer tool life with
SWISSCUT DECOLINE
30
years of close cooperation
with MOTOREX
100 %
Swiss manufacturing
quality
MOTOREX MAGAZINE 19
Bultech Précision SA
Enney
TECHNOLOGY & INNOVATION
TRADEMARK
PRECISION AND
EFFICIENCY
Text: Peter Hamberger
Gruyères is world-famous for its cheese and medieval castle. However,
very few people know that at the foot of the castle, in the village of Enney,
is a top-performing Swiss supplier of high-precision metal parts. Bultech
Précision SA supplies customers all round the world and relies entirely on
MOTOREX high-performance cutting oils in its manufacturing activities.
Bultech Précision SA’s success story can
be summed up in the words “high-tech
machined parts”. Since it was founded in
1989, the company has developed into a
globally valued manufacture of high-precision
parts and assemblies. These are
manufactured in small, medium and large
production runs from materials such as
steel, stainless steel, aluminum, titanium
and copper alloys. High-performance CNC
machines are used to turn, mill and grind
the parts. The company’s offering extends
to downstream processes such as
laser etching, polishing, assembly into
complete units and a full logistics service
that includes item management and
warehousing. Around 20 % of its output
is exported to customers in all corners
of the globe in industries such as power
generation, automation and hydraulics,
mechanical engineering, medical technology,
metrology, clock- and watch-making,
micromotors and defense technology.
One step ahead of the competition
Supplier companies face huge pressure,
competing for every order with low-price
bidders in the Far East and eastern Europe.
Bultech’s Managing Director, Jean-
Marc Egger, sees this as more of a challenge
than a threat.
“We simply have to be
better across the entire
process chain.”
“That starts with raw materials and production
resources, then continues through
engineering, actual precision manufacturing,
quality assurance and through to
providing a full logistics service. Then it’s
easy to get customers who take a total
cost perspective on board”. However,
this demands state-of-the-art production
resources and highly skilled employees
with the ability to optimize processes. For
this reason, Bultech has 20 CNC lathes,
eleven CNC machining centers and four
CNC grinders. However, Jean-Marc Egger
attaches even greater importance to the
knowledge and experience of his employees,
who receive continuous training to
guarantee the company achieves unique
precision and efficiency.
From supplier to development partner
Production of a complex workpiece from
nickel provides a showcase example of
the Bultech philosophy. Nickel is heat-resistant,
tremendously hard even at high
temperatures, and is extremely corrosion-resistant
as well. However, these
properties often push tools and machiners
to their limits. Nickel generally tends
towards work hardening, which means
that the metal surrounding the cutting
tool gets much harder to machine as the
process progresses. This makes it crucial
to choose a cutting tool with the right
geometry, hardness, coating and sharpness.
Bultech devoted two years to optimizing
this process, testing over 300
different tools as it did so. In addition to
the tools, different machine outputs,
cutting depths, speeds, feeds and cutting
oils were tried.

MOTOREX MAGAZINE 20
FOR MAXIMUM PRODUCTIVITY
Choosing the right product from the SWISSCUT DECOLINE
range can significantly reduce workpiece machining times
and cut evaporation loss by up to 60%.
Relative evaporation loss in percent
I SWISSCUT DECOMED HP-X (Gr. III+ base oil)
I SWISSCUT DECO AP (Gr. III+ base oil)
I Conventional cutting oil (Gr. I base oil)
“Using DECOMED HP-X 22, we
were able to raise production capacity
and increase tool lives by 50 %.”
Jean-Marc Egger, Managing Director, Bultech Précision SA
UP TO 55% BETTER PERFORMANCE
Comparison: DIN 1.4109 medical grade steel machining.
I SWISSCUT DECOMED HP-X
I Conventional cutting oil
55 %
Cutting oil—a productivity factor
Bultech has been working with MOTOREX
for years because it believes MOTOREX
lubricants are the best on the market.
However, Bultech has been won over not
only by the quality of MOTOREX products,
but also by the expert advice and
development partnership offered by the
lubricant specialist. Since cutting oil has
a significant impact on overall productivity,
a wide variety of products from
MOTOREX’s extensive range were tested
with the process. The best solution was
22-viscosity DECOMED HP-X from the
SWISSCUT DECOLINE. Using this cutting
oil tripled cutting speed and increased
tool life by 50 percent. Bultech was also
able to produce significantly more parts
than with conventional solutions in the
same time. MOTOREX’s high-end cutting
oil for perfect surfaces and dimensional
accuracy also offers a large number of
additional benefits. It contains no chlorine,
zinc or other undesirable components,
which ensures excellent compatibility
with people, materials and machines.
The oil’s high flash point, attributable to
its Group III+ and GTL base oil, reduces
evaporation loss by up to 60 percent,
thus also reducing oil consumption. This
is further helped by the DECOLINE cutting
oils’ very good flow characteristics,
which ensure much less oil is lost to
swarf and workpieces and in turn reduce
not only consumption, but also cleaning
work. This MOTOREX cutting oil is particularly
suitable for medical technology,
because it is not cytotoxic (does not damage
cells) under ISO 10993-5 standards.
Environmental commitment
Manufacturers in the Gruyère region
care strongly about the environment.
Bultech is no exception, attaching huge
importance to sustainable production.
A roof-mounted solar array generates
electricity for the company and waste
heat is used to heat the production area.
MOTOREX’s SWISSCUT DECOLINE offers
a high-performance, odor-neutral and
contemporary solution for the cutting oil
market. It runs off parts smoothly and is
easy to clean. Bultech’s carefully thoughtout
fluid management system also recovers
oil by centrifugation and filtration,
which increases its service life and reduces
consumption of fresh oil.
Longstanding, cooperation-based
partnership
“MOTOREX doesn’t just sell us a product.
It sells us a complete solution that is perfectly
adapted to our applications”, says
Jean-Marc Egger. As a customer, he also
appreciates the personal advice and service
package, ranging from laboratory
analysis and informative data sheets to
the very straightforward ordering process
in the online shop.
The perfect interplay of the two top
Swiss companies is the best example of
how to successfully compete with lowwage
countries.
MOTOREX MAGAZINE 21
0 10 20 30 40 50 60 70
0 5 10 15 20 25
Quantity parts
Bultech Précision SA
Founded in 1989 and headquartered
in Enney, Switzerland,
Bultech Précision produces individual
parts and assemblies
from steel, aluminum and titanium
in production runs of various
sizes. With its highly innovative
production workshop
and latest-generation CNC machines,
Bultech delivers outstanding
quality, competitive
prices and high reliability. The
company has ISO 9001 certification
and exports worldwide.
MOTOREX industry specialists provide real
world-focused advice for optimal solutions.
Multiple clamping systems and simultaneous
machining processes increase efficiency.

MOTOREX MAGAZINE 22
TECHNOLOGY & INNOVATION
LUBRICATE
WELL …
Text: Martin Aeschlimann
… and protect well. This phrase could be said to sum up the long
tradition of using grease for lubrication. Regardless of whether we’re
talking about multipurpose grease or special-purpose grease for the
latest technologies, grease is essential for technical infrastructure that
runs reliably and frictionlessly.
Where liquid lubricants cannot be used, grease provides a reliable
alternative. It adheres well to surfaces, reduces friction, protects
effectively against wear and corrosion, and provides a reliable seal.
5–15 %
5–10 %
~80 %
ADDITIVES
EP enhancer, wear protection,
oxidation inhibitors, corrosion inhibitors,
bond enhancer, friction modifier,
solid lubricants
THICKENER
Metallic soaps, bentonites,
silica gel, polyureas
BASE OIL
Mineral oil, synthetic oil, plant oil
MOTOREX MAGAZINE 23
The structure of grease
Technical greases comprise base oil,
thickener (saponifying agent(s)) and additives.
In simple terms, grease is oil that
has been thickened. The thickener consists
of sponge-like structures that hold
the oil, which is released during operation,
then reabsorbed. The additives
give the grease the required properties.

MOTOREX MAGAZINE 24
Choosing the right grease
Choosing the right grease is crucial to good performance.
Manufacturers’ recommendations should
always be observed. The following key data may
also be helpful for evaluation purposes.
FETT 219
is perfect for heavy-duty roller
and slide bearings and provides a
high level of wear protection for
oscillating movements (excavator
arm bolts).
MOTOREX MAGAZINE 25
I Consistency (NLGI scale)
I Thickener type
I Base oil viscosity
I Operating temperature range
I FBT* weld load
High pressure resistance
Greases with a high FBT (four ball tester) value are
particularly effective under high pressure and impact
loads. The specific type and structure of saponification
ensures even pressure distribution and
minimizes direct surface contact. The consistency
of a grease and its extreme pressure (EP) additives
enable it to absorb powerful forces, while bond
enhancers ensure it adheres durably to the lubrication
point.
ECOPASTE HT 400
lubricates drill pipe threading and protects
effectively against seizing up.
Classic bearing lubrication
The primary goal of lubricating bearings such as
roller and slide bearings is to reduce friction and
wear. Properties such as high water, temperature,
oxidation and corrosion resistance help safeguard
operational safety. In addition, grease damps noise
in bearings, which qualifies it perfectly to satisfy
constantly rising comfort requirements. As a rule,
bearings of the types mentioned above should not
be packed too tightly with grease as this can cause
overheating. It is much better to apply grease more
often than less frequently and overabundantly.
From multipurpose to special-purpose
MOTOREX’s range of greases extends to over 50
products. Multipurpose greases such as FETT 2000,
which have a very wide range of applications, are
increasingly being joined by special-purpose greases.
From icy temperatures in snow groomers to the heat
of a conveyor oven in a baking line, from near-water
use in a walking excavator to a MotoGP racing bike,
everything revolves around—and thanks to—the
correct grease.
Handy solid greases
Solid greases such as molybdenum disulfide (MoS 2 )
or graphite (C) have a layered structure that is ideal
for reducing friction. Because the particles in solid
greases slide over each other, they guarantee uniform
coefficients of friction and prevent phenomena
such as the dreaded surface-fusing under extreme
loads. Solid greases also have good fail-safe characteristics
since the lubricant particles adhere reliably
to the lubrication point.
Sustainable and high-quality
Rapidly biodegradable grease is particularly suitable
for outdoor and total-loss applications. Using renewable
raw materials not only fulfills EAL (Environmentally
Acceptable Lubricants) criteria, it also
satisfies the constantly growing demands that
petroleum-reduced products have to satisfy. The
best proof that performance and sustainability can
go hand in hand.
For more information on greases, contact your
MOTOREX partner.
Ideal for food and feed production:
H1-registered
FOOD GREASE CS-HD 2
ECOGREASE B300
contains a high percentage of
renewable raw materials.
GO TO PRODUCTS
motorex.com/grease

MOTOREX MAGAZINE 26
TECHNOLOGY & INNOVATION
PERFECT
FRESH CHEESES THE
SMOOTH WAY
Text: Martin Aeschlimann, Photos: frischkaese.ch
Fresh cheeses get their unique
fresh flavor from their very
high water content relative to
non-fatty matter. Züger, a
family business from Oberbüren
in the canton of St. Gallen,
has been producing fresh
cheeses since 1984. Thanks to
FOOD LINE’s food-safe lubricants
and operating fluids,
everything in the company
runs smoothly—from production
to perfect packaging.
36,000
tonnes of dairy products
produced annually
> 100
machines and systems require
lubrication and maintenance
325
people work at the
Oberbüren site
Züger Frischkäse AG, a family business in eastern
Switzerland, has been instrumental in shaping
the history of cheese, and particularly mozzarella,
in Switzerland. In the 1960s, Edwin Züger did an
internship in an Italian cheese factory and became
fascinated by the freshness and taste of
mozzarella. Inspired to produce mozzarella in
Switzerland using Swiss milk, his family business
made its first Züger mozzarella in 1984. Today it
transforms 400 tonnes of milk into mozzarella
every day, in a variety of forms that includes balls,
sticks, cubes and much more. In 2022, the company
even launched a vegan version.
Expertise and automation
Producing 36,000 tonnes of dairy products from
around 160 million kilograms of regionally sourced
milk each year, Züger is Switzerland’s fifth biggest
dairy processing company. Around 40 percent of
its output is exported. Each specialty fresh cheese
places its own requirements on the highly automated
manufacturing process. The company produces
around ten product groups, such as mozzarella,
brine cheese, mascarpone, ricotta, cottage
cheese, Filona cream cheese, curd cheese, paneer
and non-melting cheese for barbecues. It has
also been operating its own butter-making facility
since 2006.
Designed and built in-house
Taking charge of its own fortunes is a Züger hallmark,
and that extends to planning and manufacturing
sophisticated machines and production
systems, since these are rarely available to buy
commercially. This means that many of the company’s
machines are built in its own plant engineering
division and existing systems have been constantly
upgraded by the addition of useful modifications.
One example is the coagulator, a fully
automatic system that processes milk into cheese
and is an essential part of the mozzarella production
process. Since the milk has to be processed
within a certain time, Züger operates 24 hours a
day. Production stops once every two weeks for
one day, for cleaning and maintenance work.
MOTOREX MAGAZINE 27

MOTOREX MAGAZINE 28
Comprehensive range of machinery
Thomas Jung is responsible for the maintenance
of all Züger’s machinery. “There are easily 100 or
so machines. If one of them breaks down, our
team has to step in, whatever the time of day or
night. All the machines are inspected once a week
and get ad hoc maintenance. We carry out overhauls
and major maintenance once a year. We
use MOTOREX products, partly from the basic
range and partly specialist FOOD LINE lubricants
and operating fluids that are safe for foodprocessing
environments. Depending on the risk
of contamination, these lubricants are divided
into different classes (H1, 3H or K1), which means
that even accidental direct contact with foodstuffs
poses no risk.” Strict hygiene and working
standards ensure this doesn't happen at Züger.
“I associate MOTOREX
with consistent quality and
Swiss reliability.”
Thomas Jung, Head of Technical
Maintenance and Engineering
Züger Frischkäse AG
Oberbüren
MOTOREX MAGAZINE 29
Motion needs lubrication
Packing and thermoforming machines process
production batches that are often several thousand
units in size. Such systems rely on automatic
lubrication systems, in which FOOD GREASE
AL-GL 00, a white fluid grease, has proven outstandingly
successful. This high-performance
fluid grease is registered as H1, has a high load
carrying capacity and is extremely water- and
oxidation-resistant. Thomas Jung knows his machines
like the back of his hand and has a lubrication
plan for each of them. “High-grade lubricants
and professional maintenance are the
foundations of breakdown-free working and long
machine service lives. I associate MOTOREX with
consistent quality and Swiss reliability”, he tells
us with conviction as he fills the oldest single unit
packing machine with FOOD FLUID 68 hydraulic
oil. The machine was built in 1968 and is still giving
valuable service.
FOOD LINE
Top-quality lubricants and operating fluids for the
production of food, cosmetics, pharmaceuticals,
feedstuffs and packaging.
Highly specialized lubricants
Thomas Jung has over 30 colleagues, including
mechanics, electricians, fitters and welders, to help
him operate the workshop and maintain the impressive
milk processing facility, which even includes
a refrigerated high-bay warehouse. “Rapid
availability and long service lives are essential,
particularly for the highly specialized food-safe
lubricants that we use here”, Thomas Jung explains
while checking that a centrifuge has enough
gear oil. The oil has to be able to withstand extremely
high air humidity, since the systems have
to be frequently washed for hygiene reasons. FOOD
FLUID 320 is a full synthetic high-performance gear
oil (ISO VG 320) with outstanding high-pressure
and load-carrying properties that is used primarily
in the gear systems of equipment used in manufacturing
industries with strict requirements.
The growing number of customers in Switzerland
and abroad proves that Züger fresh cheese products
have captured the spirit of the times. There
is potential for innovation everywhere, as paneer,
a non-melting cheese from India, or Filona cream
cheese prove. Employees often contribute new
ideas from their own culture or travels. That’s
because everyone at Züger is a member of a big
family and part of the company’s success.
Züger Frischkäse AG makes
delicious specialty cheeses
from regionally sourced milk,
including milk produced to
BIO SUISSE standards.
2probity.eu
certificates
Nonfood
Compounds
Kosher
Halal

MOTOREX MAGAZINE 30
TECHNOLOGY & INNOVATION
CLEAR TRACK AHEAD WITH
PENTA CT SAE 75W/90 IN
STADLER RAIL TRANSMISSIONS
Text: Martin Aeschlimann, Photos: Stadler Rail AG, SOB.CH, Markus Schälli
MOTOREX MAGAZINE 31
Stadler Rail AG uses its innovations
and countless proprietary developments
to keep setting new standards.
These include the latest transmissions
for standard-gauge rolling
stock, in which the gear oil faces
a Herculean task. MOTOREX’s
PENTA CT SAE 75W/90 is a safe
and long-lasting gear oil that
has proved a great success in longterm
service at Schweizerische
Südostbahn AG (SOB). An interview
with Bernhard Höger, Head of Transmission
Engineering at Stadler Rail.
Mr. Höger, why does Stadler Rail attach such
great importance to proprietary developments
for its rolling stock transmissions?
15 years ago, Peter Spuhler, Chair of our Board of
Directors, decided that Stadler Rail would no
longer source its transmissions externally, but
develop and produce them itself. Rail vehicles are
judged primarily on their availability. Gearboxes
are an essential part of this and crucial in determining
whether or not a vehicle can run. If a transmission
hits a problem, it must be possible to fix
it quickly and efficiently. External suppliers can
be a hindrance in resolving problems quickly. If
we use our own transmissions, our engineers can
respond quickly and efficiently at any time, which
is what rail operators want.
How did your partnership with
MOTOREX come about?
It started with a meeting at Schweizerische Südostbahn
AG (SOB), because we had factory-filled
the transmissions with a different oil from the
MOTOREX product SOB wanted. We explained
that this was because the oil we had used had a
600,000 km change interval. Ralf Willkommen,
SOB's Group Head of Fleet Management Engineering,
suggested putting the fluid used by Stadler
Rail head to head with the MOTOREX product. In
summer 2019, we, SOB and the two fluid suppliers
started a multi-year field trial in various vehicles.
SOB was the driving force, taking samples and
having them tested by MOTOREX and a neutral
laboratory. At Stadler Rail, we monitored the tests
and came to a positive conclusion.
Stadler Rail AG
Bussnang
“THE MOTOREX GEAR OIL MET ALL
REQUIREMENTS WITH FLYING COLORS.”
Bernhard Höger, Head of Transmission Engineering Stadler Rail AG

MOTOREX MAGAZINE 32
In which products are the new highperformance
transmissions installed?
We have various transmissions that we produce
ourselves, starting with the T2 transmissions for
our SMILE (fast, multi-system, innovative, lightweight
express train), KISS (comfortable, innovative,
high-acceleration, suburban train) and FLIRT
(nimble, lightweight, innovative regional motorized
train) products. These have an output of up
to a megawatt—1,000 kW no less! We have now
also started to produce transmissions for underground
railways and streetcars, which have a lower
output of 150 or 200 kW.
What are the advantages of the new
generation of transmissions?
Off the top of my head, they’re quite a lot lighter,
more compact and much easier to install and
remove. This has a positive impact on service
friendliness and reduces the work involved in
overhauling them. The bottom line is that the
design of our new transmissions has reduced
their life cycle costs compared with the transmissions
we used to install.
Noise emissions are an important
consideration in public transport.
How do you keep them down?
A vehicle’s overall noise levels are crucially important.
Right from the concept stage, we design the
gearing to keep noise as low and as unintrusive as
possible, both onboard and in the surrounding
environment. We calculate the macro geometry so
that the gearing excites as little noise as possible.
How important is gear oil for the new
generation of transmissions?
Gear oil is an important design element. Not only
does it lubricate the roller bearings and gearing,
it conducts heat out of the unit. When the vehicle
is in operation, the heat is dissipated through the
oil sump casing.
What were the results of the real-world
tests with PENTA CT SAE 75W/90?
MOTOREX’s gear oil held its ground in a field test
with a competitor’s product with flying colors. We
tested the fluid in the SOB fleet over 700,000 km
of running and all key criteria were well within the
permissible values at the end. Thus we can safely
say that the MOTOREX gear oil is very much compatible
with oil change intervals of 600,000 km.
What insights did you gain from
the oil analyses?
The regular analyses were a very important part
of the field trial, providing information on characteristics
such as viscosity, acid number, wear, additive
depletion, etc. All values were consistently
within limits and the oil itself was still completely
usable after the trials. So in other words, the vehicles
could have kept running on it.
How would you sum up the partnership?
We now have a second gear oil that lets us guarantee
compliance with challenging oil change intervals
of 600,000 km. This enables us to reduce life
cycle costs, protect the environment by using the
product for longer (i. e. lower fluid consumption)
and offer our customers a second source of supply.
PENTA CT SAE 75W/90
High-performance gear oil
for heavy-duty spur, bevel, planetary
and worm-drive transmissions
in latest-generation rail
vehicles. The fully synthetic oil
combines extremely high shear
stability and excellent aging resistance
with an impressive load
carrying capacity. The specially
formulated additives extend service
intervals.
GO TO PRODUCT
motorex.com/pentactsae75w90
All gears are designed
to minimize noise and
friction.
Each transmission
undergoes full testing
on the test bed.
Ralf Willkommen, Group Head of Fleet Management Engineering,
is responsible for mechanical engineering at SOB and thus for all
vehicle engineering on the carrying frame side.
A USER PERSPECTIVE FROM A DRIVING FORCE
Schweizerische Südostbahn AG (SOB) has relied on MOTOREX products
and services for years. In 2023, SOB’s trains traveled over
11 million kilometers and carried around 21 million passengers.
Punctuality is essential, given the high traffic volume on the line
and the tight basic interval timetable. But punctual services depend
on extremely reliable rolling stock.
One major advantage of SOB’s new vehicles with Stadler transmissions
is the reduced maintenance requirement. The oil change
intervals have been extended from 300,000 to 600,000 km. Not only
that, the interval between transmission overhauls has quadrupled
from a million kilometers to an impressive four million kilometers.
The impetus to establish MOTOREX as an alternative lubricant manufacturer
(see interview with B. Höger) stemmed from SOB’s longstanding
partnership and extensive positive experience with the
company. Since MOTOREX was a longstanding regular supplier of a
familiar and reliable product, it was an obvious step to adopt it for
SOB’s current vehicles and transmissions.
Constructive cooperation
Although Stadler Rail suggested a different supplier’s fluid for its
new generation of transmissions, Ralf Willkommen was keen to stick
by his successful partnership with MOTOREX. Stadler was receptive
to the idea of evaluating a second gear oil. Although the clearance
process for it was arduous—the project was expected to last three
to four years—cooperation between MOTOREX, Stadler and SOB
was extremely partnership-driven and constructive from the outset.
Without this, it would not have been possible to field-test the new
MOTOREX gear oil, evaluate the tests and derive mutual benefits
from them.
MOTOREX MAGAZINE 33
Stadler Rail produces a large
number of transmissions each year.
Future-facing solutions
As Ralf Willkommen attests, “Close cooperation and active support
when issues arise are the hallmarks of our longstanding and extremely
constructive partnership with MOTOREX. We are confident
that we are still far from the end of the line in development terms,
and will keep working on new solutions together. We already have
ideas to drive forward our development”.

MOTOREX MAGAZINE 34
AROUND THE WORLD
NETWORK OF PROFES-
SIONAL TESTING LABS
BROOKFIELD
Determining the flow characteristics of a sample.
MOTOREX MAGAZINE 35
Text: Martin Aeschlimann
MOTOREX supplies its markets reliably from its four production sites in
Switzerland, France, Poland and the United States. At each of these sites,
skilled specialists working in modern laboratories not only guarantee
quality, but also generate added value by performing services such as
customer sample testing.
TOULON
Measuring the density
of an additive.
Geographical proximity to customers offers a range of
benefits, particularly a high reliability of supply. Seamless
quality assurance and documentation are essential
to the production of top-quality lubricants. Making sure
this is so is the task of MOTOREX’s laboratory network,
which covers all four of the company’s production sites.
The laboratories all work on a standard IT platform, which
1 2
ANALYSES
3
1 RAW MATERIALS
Test quality, density and color
of base oil and additives
enables them to share data seamlessly and efficiently.
Furthermore, technologies such as a laboratory information
management system (LIMS) are used in combination
with the SAP enterprise resource planning (ERP) system.
Guaranteed quality standard
Across the entire laboratory network, a combination of
expert staff and modern lab infrastructure ensure compliance
with the high production and quality standards,
such as ISO 9001 in Europe. This means that each site is
able to quickly perform informative and reliable physical
and chemical testing. For example, if a wide range of base
oils and additives are supplied to the US site in Brookfield,
they are quickly tested to QC standards that are identical
throughout the network, compared with the manufacturers’
certificates and then released. At the same time,
retained samples of the raw materials are produced for
future comparison purposes. The prescribed processes
are defined in detail, apply to the labs in Switzerland,
France, Poland and the United States equally, and are
the guardians of MOTOREX quality.
Sample testing as a service to customers
Testing samples supplied by customers provides valuable
information on the condition of units and the lubricants
in them. The laboratory network is able to test the samples
within a useful period, evaluate the results and communicate
them to customers in a comprehensible form. The
results of the tests are important for customers, often
serving as a basis for decisions on overhauls or extending
the service life of large fill volumes.
OSTROWIEC
Analyzing raw materials and finished products.
LANGENTHAL
Determining the element content
of customer samples
2 PRODUCTION PROCESS
Formulation in compliance with
process and final inspection
3 CUSTOMER SAMPLE ANALYSIS
Analysis and production
of customer report
Network synergies
The shared standards, infrastructure, software, calibration
requirements and safety and health protection measures
within the MOTOREX lab network generate valuable
synergies. Experience sharing between the specialists is
also key. Combined with the Technical Customer Service’s
expertise, this means users can benefit from the findings
and solutions regardless of where they are based.
Traceability and documentation
From raw materials to finished products, retained samples
combined with documentation of data enable end-toend
quality traceability – all the information held by the
MOTOREX laboratory network is available 24 hours a day,
365 days a year in a uniform data documentation system.
The laboratory network’s work is crucially important and
a form of added value that is present in each MOTOREX
product.

MOTOREX MAGAZINE 36
“HISTORIC MILITARY AIRCRAFT
DISPLAY AN IMPRESSIVE LEVEL
OF PERFECTION, COMPARABLE
TO MODERN SPACECRAFT.”
Clemens Rüb, aircraft mechanic
6,600
meters above sea
level service
ceiling
MOTOREX MAGAZINE 37
750
kilometers
range
22
liters displacement
from 9 cylinders
CHALLENGE THE LIMITS
TAKING U-328
UNDER THEIR WING
Text: Martin Aeschlimann, Photos: Thommy Hofer, U-328.ch
Is there anything more captivating than flying over rolling hills in a historic airplane
at sunset? It was this fascination and the good condition of the octogenarian AT-16
Harvard IIb that motivated Natascha Wirth (39) and Clemens Rüb (37) to restore it.
The five-year project has been organized by Verein U-328, an association set up
specially to restore the aircraft. MOTOREX products give the team, which is based at
Bleienbach airfield in Switzerland, that extra bit of lift.
They share a passion for flying. Natascha (aerospace
underwriter and pilot) and Clemens (aircraft mechanic
and pilot) met a few years ago while helping restore a
Harvard IV. Together the restorers returned the plane,
one of just five in Switzerland, to airworthy condition.
In addition to the joy of a successful outcome, the experience
was a source of valuable knowledge and a
motivation to do it again.
Instrument flight trainers
In 1948, Switzerland purchased forty surplus AT-16 Harvard
IIb’s from Canada. Originally built in the United
States as military aircraft, the planes were extensively
overhauled by Swiss specialists and converted into training
aircraft to teach aspiring pilots instrument flight skills.
The rear section of the cockpit was able to be covered
over to remove all visual points of reference and simulate
full instrument flight conditions. The aircraft were in service
for almost 20 years before they were replaced by
more up-to-date Pilatus P-3s in 1966. U-328 escaped the
scrapyard and was converted to a museum exhibit. It was
on display at the aviation museum in the Swiss town of
Dübendorf until 2015, when, by a series of coincidences,
it made a happy landing with the Obersimmental Hunter
association. The U-328 association was established to
restore and subsequently operate the aircraft.
Intergenerational project
The aim of restoration is to return the aircraft to airworthy
condition while keeping it in original condition as
much as possible. At the same time, the team hopes to
share valuable knowledge about historic military aircraft
and preserve a piece of cultural heritage. The project is
also a way for different generations to share their enthusiasm
for aviation and engineering professions. The many
different operations involved in restoration provide a
surprisingly broad range of opportunities to apply and
expand professional skills—an approach that even young
people find appealing. As a result, the team includes
young automation, avionics and electronics engineers
as well as seasoned professionals.
Wings off for the trip to Bleienbach
“Luckily, the aircraft was complete except for just a few
parts”, Natascha tells us, standing next to the now largely
dismantled plane. There are around 30,000 individual

MOTOREX MAGAZINE 38
6.9
meters per second
rate of climb
MOTOREX MAGAZINE 39
Traceable engineering:
Comprehensive documentation
and enormous specialist
knowledge coupled
with plenty of enthusiasm
and appropriate products
from MOTOREX are returning
U-328 to airworthy condition.
Each bolt and
component—restoration
will take
around five years.
GO TO PROJECT
u-328.ch
Nicknamed “Wasp”, the Pratt & Whitney nine-cylinder, air-cooled
single-row radial four-stroke engine generates a lavish 550 hp.
parts. Spare parts are still readily available for the once
mass-produced aircraft. U-328 made the journey from
the museum, wings detached, by semitrailer in spring
2024. The issue of preserving its original condition immediately
sprang to Clemens’ mind. The fuselage consists
of a tubular steel frame to which aluminum panels
have been riveted to create the bodywork. The passivated
surface gives the plane the characteristic light gray
color that was typical of its era. Clemens was on the
lookout for a tightly adhering fluid to protect the surfaces
against external influences during the restoration.
It was important that the fluid did not form lumps, like
wax, for example. Instead it had to provide a light, dustdry
protective film that could also be easily removed.
Challenging wings
MOTOREX’s Technical Customer Service was able to assist
by supplying polyvalent all-rounder INTACT MX 50.
This universal spray is suitable for both cleaning and
protecting metal surfaces. The biggest challenge according
to Clemens is restoring the wings, which have a total
span of 12.8 meters. They have riveted aluminum sheeting
and are covered with fabric in places. They also house
the fuel tanks and jacking points. Since the wings will
not be opened, INTACT MX 50 also has the task of protecting
them from inside by forming a light but effective
film that displaces water and provides long-term protection
against moisture-related corrosion. The restoration
team is also using sprays such as SILICONE, GREASE
SPRAY and POWER CLEAN. Clemens is a firm believer in
FETT 2000 for lubricating wheel bearings and various
other lubrication points, using it on various other historical
aircraft that he takes care of. “It adheres very well,
is pressure-resistant and extremely water-resistant. So
water-resistant in fact that I use it for the retractable
wheels in the floats of an amphibious aircraft”.
Aviation specification
Lubricants and operating fluids used in aviation have
to satisfy specific demands. When U-328 was built in
the 1940s, engineers took their bearings from the best
products available on the market at the time. But that
was more than 80 years ago now. Today there are specialists
such as motor engineers who know exactly which
motor oil to use for a historic plane or which grease can
be used on propellers. As a certified aircraft mechanic,
Clemens Rüb also knows what needs to be cleaned, lubricated
and preserved, and how. He is the person with
accountability to FOCA, the Federal Office of Civil Aviation,
for the restoration project. Restoring an airplane
is a complex procedure, which has to be documented
step by step with thousands of photos and painstakingly
completed renovation and inspection lists.
Engine and propeller—the beating heart
Powerful engines are a feature of many military aircraft
and make them great fun to fly. The AT-16 is no exception.
It has a Pratt & Whitney R-1340 AN-1 “Wasp” engine. The
nine-cylinder, air-cooled single-row radial four-stroke
engine has a huge 22-liter displacement, weighs just 401
kilograms and can generate 550 hp at 2,200 rpm. A crankshaft
the thickness of a forearm transmits this power
direct to the adjustable, 2.75 meter-long, two-blade
propeller. The engine and propeller will be overhauled
in due course by specialists, after which they will be good
for a further 1,000 hours’ flying time. The association has
budgeted some 125,000 Swiss francs for this work, a figure
that brought them down to earth with a slight bump.
Each bolt and component
The project demands a lot of skills from participants.
There is no doubt that it needs plenty of tenacity as well
as specialist knowledge. When you see how painstakingly
restoration is proceeding—and indeed has to proceed—
it becomes clear why it will take five years until U-328
shows new signs of life for the first time. No one is in a
hurry, though; restoring the aircraft to a professional
standard is what the project is all about. Once it’s back
in the air, U-328, the legendary AT-16 that was once condemned
to an existence as a museum piece, will more
than compensate for all the challenges that have been
overcome.

MOTOREX MAGAZINE 40
TECHNOLOGY & INNOVATION
MOTOREX
TIPS
Text: Klaus Larock
1 2 3
4 5 6
MOTOREX's broad product
range includes smart
solutions for home, sport
and leisure time, and
you’ll always be at an
advantage with our triedand-trusted
cleaning,
maintenance and lubrication
tips. If you have any
questions, our Technical
Customer Service will be
happy to help. Just scan
the QR code to contact
them.
GET ADVICE
motorex.com/customer-center
1 2 3
4 5 6
Shiny stainless steel
surfaces with no streaks
Gleaming chrome, aluminum and stainless steel surfaces
project an image of value and hygiene. Cleaned and cared
for correctly, they can provide many years of pleasure and
will withstand a host of external effects. However, brushed
surfaces sometimes still have streaks even after repeated
degreasing and polishing. This is because of structural
differences in the open pore surface.
TIP Clean surfaces with an aqueous degreaser, then dry
them with a microfiber cloth. Shake CHROME POLISH well,
apply, being careful not to apply too much, and rub in with
a dry cloth. Once first signs of drying are apparent, buff
up with a soft cloth, applying gentle pressure. Then spray
INTACT MX 50 onto some kitchen paper and rub into the
surface until the pores have been filled. This will create a
streak-free gloss as well as a protective film that stops dirt
adhering. CHROME POLISH is also ideal for glass ceramic
hobs and stainless steel sinks. Do not apply to hot surfaces
or areas that come into direct contact with food.
GO TO PRODUCT
motorex.com/chrome-polish
MOTOREX MAGAZINE 41
The all-round care spray:
HELMET & GEAR CARE
HELMET & GEAR CARE spray is an all-rounder that cleans and cares
for all your gear. Not only does it do a great job of freshening up
helmets and protectors, it can also be used on gloves and many
other items, including ice hockey equipment, boxing gloves, riding
boots and walking shoes. This 200 ml spray’s active foam formula
makes it ideal for efficient but gentle cleaning with visible results.
TIP Clean your gear as soon as possible after you’ve used it. This
makes it easier to remove insects, road dust, sweat and other types
of dirt, and lets you spot signs of wear or other problems before
they get too serious. What’s more, it stops unpleasant odors. Remove
any heavy dirt with a soft, damp cotton cloth. Shake your can
of HELMET & GEAR CARE for about 30 seconds, then apply the foam.
Leave it to work for a short time, then simply wipe off with a dry
cloth. This one effortless step is all you need to clean, care for and
deodorize your gear. Don't forget to store your clean gear in a dry,
well-ventilated place. That way you’ll always be ready to go.
GO TO PRODUCT
motorex.com/helmet-and-gear-care
1 2 3
4 5 6
How to clean
with no water
It is not always possible or advisable to clean
items with water. Such cases are a job for
QUICK CLEANER, which requires no additional
water and is ideal for fast and gentle cleaning
of plastics, glass, paint and metals.
TIP First remove heavy dirt with a damp microfiber
cloth. Then set the spray nozzle to fine
mist and apply QUICK CLEANER evenly. Leave
it to work for a short while, then wipe off with
a dry, clean cloth. All done!
GO TO PRODUCT
motorex.com/quickcleaner

MOTOREX MAGAZINE 42
GO TO MOVIE
l.ead.me/bfnius
AROUND THE WORLD
WORLD RECORD
AND GOLD FOR
SWITZERLAND
There’s still a lingering sense of jubilation.
The Swiss national team won the relay
race at the 35th World Logging Championship
in Vienna. Their victory not only
won them the gold medal, it also set a
new world record. The four-man team of
Urs and Philipp Amstutz, Marc Rinaldi
and Marco Ryser snatched the world record
from defending champions Austria
by just two points and a time advantage
of 1.62 seconds. MOTOREX has been the
Swiss national team’s official partner for
over 15 years and showed in Vienna that
optimally prepared and lubricated power
saws make the crucial difference in clinching
victory. Congratulations!
a
EDV- Aero-
Widersacher
Washington
Piktogramdynamic
building
parts
Schmier-
Belgian
vor-
richtung
resort
town
von magic
innen
kommend word or
(Med.) phrase
a pause
Wohnwagenanhänger
(engl.)
Storage
and repair
area
lat.: Fall
for cars
Reduzie-
supportinrungsstück
assistance
expression
of
refusal
First
starting
position
abbr.:
postscript
sufficient
Abk.:
Südsüdost
Flüssigkristallanzeige
(Abk.)
1
Futterbehälter
11
Inneneinrichtung
e.
Kirche
insight
abbr.:
American
English
Power
source
for
vehicles
medicinal
herb
abbr.:
strait
4
nobleman
10
head
covering
Abk.: norweg.
Literat frz. Na-
Auto
†
Sport
me für
US actor:
Schweiz ... Sitten
Gibson
A single
circuit
of the
track
&
a span.
calm
or Anrede:
quiet
Herr
Hotel
für
Autofahrer
Meerespflanze
Objektivart
(Kf.) 14
generally accepted
practice
or procedure
3
a scull
heilig
(bei
Orts-
7
namen) 5
Wasserrose in
früherer
reserve
Formel-1- a
Rennstall ruffian
6
8 5
11
12
13
10
4
small
flash
of light
Gearshifting
a fossiler
style
Auto-
of Brennstoff
mechanism
music
scheiben-
material
one
piece
of
frz.:
Mond
Sozius, Sozia
(Kurzwort)
US actress
Barrymore
(first
name)
former fuel
additive
abbr.:
inspector
ehem.
amerik.
Motorradmarke
Moralbegriff
Schluss
1
2
3
4
5
6
7
8
9
10
3
9
2
Area for
repairs
and
refueling
zodiac
sign
14
11
Ansturm
to auf give
eine
consent
Bank
(engl.)
7
bis
jetzt,
bisher:
bis ...
a friend
1
9
12
Teil des
Platzdeckchen
wooden
motors
(engl.)
plant
with a
Elektro-
stem
8
on fire
12
13
Rollteil
auf
einer
Achse
13
a large
amount
(inf.)
historischer
Bereich
der City
ein
Körperteil
Wüstenei
Schreibweise
the in
French
Gesichtsausdruck
abbr.:
technical
knockout
®
6
see1310-38
svd1310-38
14
2
Send us the solution via
motorex.com/riddle
by August 31, 2025
WIN ONE OF THE FIVE BIKE
CLEANING KITS THAT WILL GO
TO THE LUCKY WINNERS!
The solution to the riddle in the last
edition of MOTOREX magazine was:
CONFORM ECO 7100
The winners were:
· Daniel Humm, Horgen
· Tiziana Fellino, Binningen
· Nicola Laib, Tuggen
MOTOREX MAGAZINE 43
AROUND THE WORLD
JUSTINA’S LOOKING TO THE FUTURE
23-year-old Justina K. Iilonga from Namibia is a university
student in the third year of her Bachelor’s degree in
chemistry. Her internship at MOTOREX in Langenthal
took her to unfamiliar territory—geographically and
professionally. Thanks to B360 education partnerships,
which provides guest lecturer placements at African
universities for volunteer experts from Europe and organizes
internships in Switzerland for African students,
she was able to fill three months with unforgettable
professional, cultural and interpersonal experiences.
Assigned to the laboratory, she worked enthusiastically
to develop her knowledge of machining fluids for the
metalworking industry. “Lubricants are super interesting
and the international team in the lab were able to answer
every single one of my questions”, Justina told us delightedly.
Looking to the future, she plans to apply her new
skills in her studies and, later on, in her career, when she
may even become an entrepreneur in Namibia. This was
the third internship MOTOREX had offered through B360
and, like the others, it was a great success.
NOT SURE
WHICH OIL?
Use our Oil Finder to find
the best product for your
agricultural machinery.
Justina K. Iilonga
“The many positive experiences
in Switzerland will be invaluable
for my future. Thank you all !”
TO THE
OIL FINDER
motorex.com/oilfinder

SAVE
THE DATE
2025 uci mountain bike
world championships
VALAIS – SWITZERLAND
30/08–14/09/2025
valais2025.ch
Photo: EDR_Bellwald24_0O9A0766/ zVg
OFFICIAL SUPPLIER
1 CLEAN 2 CARE 3 LUBE WORKSHOP