Innovative Industrial Filtration - Hengst GmbH & Co. KG
Innovative Industrial Filtration - Hengst GmbH & Co. KG
Innovative Industrial Filtration - Hengst GmbH & Co. KG
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<strong>Innovative</strong> <strong>Industrial</strong> <strong>Filtration</strong><br />
Individual solutions for all areas of application
<strong>Hengst</strong> – A Reliable Partner<br />
Development, production and marketing –<br />
all from a single source<br />
Founded in Münster in 1958, the HENGST company is<br />
today one of the leading manufacturers of filters and<br />
filter systems worldwide.<br />
The company offers the classic advantages of a familyowned<br />
business: short decision routes, continuity of<br />
company policies, and the ability to respond quickly and<br />
flexibly to market conditions.<br />
We attach particular importance to long-term customer<br />
relations based on mutual trust.<br />
<strong>Hengst</strong> guarantees<br />
quality products<br />
State-of-the-art production technology and<br />
excellent quality standards ensure consistently<br />
high-quality, high-performance products.<br />
HENGST is certified in accordance with the quality<br />
and environmental standards TS 16949, ISO 9001<br />
and ISO 14001.<br />
02
Filter Cartridges for De-dusting Units<br />
Individual filter concepts<br />
for every application<br />
• Powder coating systems<br />
• Sandblasting equipment<br />
• Gas turbines (inlet air filtration)<br />
• Welding smoke exhaust systems<br />
• Pneumatic conveyor systems<br />
• Crushing and mixing plants<br />
• Filling and draining plants<br />
We provide custom-designed filter concepts and a<br />
comprehensive assortment of standard sizes in accordance<br />
with DIN 71459. Select the filter suited to your requirements<br />
from a wide range of dimensions and materials.<br />
You can rely on our years of experience<br />
in selecting filter surfaces, filter media,<br />
mounting designs and stabilization methods.<br />
04
The Cartridge Module<br />
De-dusting cartridges made to measure<br />
HENGST is the sole supplier worldwide<br />
of embossed filter cartridges with lengths<br />
of up to 1200 mm.<br />
For cellulose and synthetic fiber media, we provide<br />
system manufacturers and operators with decisive<br />
advantages in terms of service life and operating costs.<br />
HENGST cartridge modules with filter cartridges for<br />
de-dusting units optimally combine the cost-effective<br />
production of standard filters with maximum flexibility<br />
and a wide range of choice to meet your requirements.<br />
The selection of a filter medium suitable for a particular<br />
application is followed by the manufacture of the medium.<br />
Selection procedure for<br />
<strong>Hengst</strong> cartridge module<br />
1. Selection of the appropriate dimensions<br />
2. Selection of the mounting design<br />
3. Selection of the external stabilizer<br />
4. Selection of the filter medium<br />
As shown below, the symbols resulting from<br />
these four steps combine to form the order number.<br />
Dimensions<br />
Mounting/Design External stabilizer Filter medium<br />
Outside diameter<br />
Length<br />
Filter area<br />
Dirty gas side<br />
(closed bottom)<br />
Dirty gas side<br />
(open bottom)<br />
Clean gas side<br />
Bayonet closure<br />
Perforated plate<br />
Expanded metal<br />
Stabilizer band<br />
Net stabilizer<br />
No stabilization<br />
Filter medium<br />
mm mm m 2<br />
327 1200 2 – 36<br />
302 985 G O R B LB SM SB NS OS Designation<br />
228 646<br />
12 m 2<br />
= 120<br />
150 606<br />
327 606 120 G OS Polyester<br />
05
Filter Elements for<br />
Cleaning Appliances and Power Tools<br />
Filter elements for<br />
cleaning appliances<br />
• Vacuum sweepers<br />
• Wet/dry vacuum cleaners<br />
• Domestic vacuum cleaners<br />
Vacuum sweepers<br />
Our cellulose and polyester filters with round and flat<br />
construction have ideal cleaning properties due to the<br />
widely spaced pleats (System ProClean).<br />
Wet/dry vacuum cleaners<br />
From <strong>Hengst</strong> you can obtain flat pleat filters and filter<br />
cartridges in various filter classes (e.g. BGIA: L, M, H),<br />
with media made of natural and synthetic fibers.<br />
These filter media can be further optimized depending<br />
upon the type of application (e.g. oleophobic, hydrophobic,<br />
nanofiber, meltblown or PTFE membrane media).<br />
Domestic vacuum cleaners<br />
We supply high-efficiency particulate air (HEPA) filters<br />
and high-performance ultra-low penetration air (ULPA)<br />
filters in accordance with EN 1822, made with glass fiber<br />
media and washable media with a PTFE membrane.<br />
To meet customer requirements, the materials used provide<br />
continuous heat resistance for temperatures up to 100 °C.<br />
Filter elements for<br />
power tools<br />
• Grinding machines<br />
• Rotary hammers<br />
• Wall chasers<br />
We supply filter elements as well as complete filter modules.<br />
The wide spacing between the pleats (System ProClean)<br />
ensures a high dust-holding capacity and optimal cleaning<br />
characteristics.<br />
HENGST guarantees intensive support during the entire power tool development phase,<br />
and also designs testing equipment in accordance with customer specifications.<br />
06
System ProClean Flat Pleat Filters<br />
ProClean –<br />
the system with flexible pleats<br />
<strong>Co</strong>nventionally designed flat pleat filters have closely<br />
spaced pleats, which are often rigidly held in a stabilizing<br />
frame or cast component. The resulting small spaces<br />
between the pleats rapidly fill with dust, which at best<br />
can be only partially removed due to the rigid, closely<br />
spaced arrangement of the pleats.<br />
In order to solve this problem, we have developed<br />
production processes that permit the manufacture of<br />
flat pleat filter systems with freely movable pleats<br />
spaced more than 5 mm apart.<br />
Due to its outstanding cleaning properties, compact mounting dimensions and ease of assembly, our System ProClean<br />
is used by many well-known manufacturers of original equipment such as vacuum cleaners, pneumatic conveyor systems,<br />
drilling and grinding machines, shoe repair machines, wet/dry vacuum cleaners and wall sander.<br />
System ProClean flat pleat filter<br />
with trapped dust, before cleaning.<br />
Outstanding cleaning properties due<br />
to movable, widely spaced pleats.<br />
System ProClean flat pleat<br />
filter after cleaning.<br />
07
Erosion Filters<br />
Filter elements for wire, sink<br />
and starting hole erosion units<br />
Choose from our comprehensive program<br />
• Lamellar and cartridge filters<br />
• Galvanized and varnished versions<br />
• With or without coupling<br />
HENGST erosion filters protect the dielectric from<br />
material removed from the working part or electrode,<br />
preventing contamination which could lead to<br />
malfunctions in the erosion process or even short<br />
circuits between the working part and the electrode.<br />
The long service life and improved resistance to collapse<br />
are due to pleats with patented HENGST paper embossing.<br />
Erosion filter elements are available with filter ratings<br />
of 2 to 30 micrometers.<br />
AEG<br />
ZIMMER & KREIM<br />
BROTHER<br />
AGIE<br />
JAPAX<br />
MITSUBISHI<br />
HITACHI<br />
EXERON<br />
CHARMILLES<br />
SODICK<br />
FANUC<br />
DECKEL<br />
SEIBU/WALTER<br />
OPS INGERSOLL<br />
MAKINO<br />
08
Filter Elements for Special Applications<br />
Fast, flexible solutions –<br />
even for new applications<br />
Examples of solutions already successfully implemented for special applications:<br />
Filter elements for radiant heaters for livestock<br />
These filters provide intake air filtration for gas heaters.<br />
The filter elements are washable due to the use of polyester media.<br />
Maximum safety is guaranteed by the use of materials resistant<br />
to high temperatures.<br />
Filter elements for rainwater filtration<br />
Cyclone filters with patented support ribs ensure an efficiency of<br />
more than 95 %. Adhesion forces draw the fluid through the filter<br />
fabric to the clean water side.<br />
Filter elements for switch cabinet air conditioning<br />
<strong>Innovative</strong>, patented pleat filters permit a significant increase<br />
in air filtration performance, while complying with protection<br />
class IP55. The pleating also increases the service life, thus<br />
lengthening service intervals.<br />
We will be glad to find<br />
a solution for your<br />
application that meets<br />
your requirements.<br />
09
Quality is Evident in the Details<br />
Filter materials and processing<br />
at the highest level<br />
Reliable filtration with a high separation rate and long<br />
filter service life is provided by a large selection of BGIAapproved<br />
filter media, such as cellulose, synthetic fiber<br />
materials and glass fiber media.<br />
Additional options are also available to meet your<br />
requirements, including hydrophobic, oleophobic,<br />
flame-retardant, conductive, antistatic and nanofibre<br />
materials, as well as PTFE membranes.<br />
To complete the quality program, optimal pleat<br />
geometry is ensured by embossed distance holders<br />
or adhesive beads applied online, in addition to<br />
polyester band, expanded metal, perforated plate<br />
or net stabilization.<br />
All products are thoroughly tested<br />
at HENGST via extensive measurement<br />
and testing facilities.<br />
Embossed distance holders<br />
Adhesive beads<br />
Stabilizer bands Expanded metal stabilizer Perforated plate stabilizer Net stabilizer<br />
10
Impressive Quality<br />
A good foundation<br />
In addition to years of experience, state-of-the-art<br />
technology is also essential in order to achieve an<br />
optimal selection of filter media.<br />
For example, media characteristics in accordance with<br />
VDI 3926 are determined via long-term dust testing.<br />
An investigation under realistic conditions is carried<br />
out in four phases.<br />
Differential pressure and residual dust content values<br />
are recorded during the entire test. The test parameters<br />
can be adapted to the design and operating parameters<br />
of the filter system.<br />
Based on the test characteristics, the following<br />
values are determined:<br />
• Cleaning intensity<br />
• Dust cake formation<br />
• Average residual dust content<br />
• Degree of cleaning<br />
• Total test duration (characterizing the service life)<br />
By means of individual testing, the optimal filter medium<br />
for a particular application can be selected. The foundation<br />
is provided by cellulose, synthetic and glass fibers, which<br />
are combined and processed as required for the application.<br />
Service life is decisively improved by nanofiber technology<br />
Nanofibers combine exceptionally good cleanability with high air permeability. When they are used in conjunction with<br />
pneumatic cleaning systems, previously unattainable service lifetimes can be achieved.<br />
Differential pressure after cleaning<br />
72 mbar<br />
70 mbar<br />
68 mbar<br />
66 mbar<br />
64 mbar<br />
62 mbar<br />
60 mbar<br />
New condition 1 2 3<br />
Dust cycle<br />
with nanofibers<br />
<strong>Co</strong>mparative measurements<br />
Filter media with and without nanofibers<br />
without nanofibers<br />
4 5<br />
Filter medium<br />
without nanofibers<br />
Filter medium<br />
with nanofibers<br />
11
194 082 102<br />
<strong>Hengst</strong> <strong>GmbH</strong> & <strong>Co</strong>. <strong>KG</strong><br />
Nienkamp 55 - 85<br />
48147 Münster<br />
Germany<br />
Tel. + 49 251 20202 - 228<br />
Fax + 49 251 20202 - 170<br />
info@hengst.de<br />
www.hengst.de