Cat M Series - Romi

M Series
Programmable Engine Lathes
1

Production line of M Lathes.
Investments in innovation and quality make Romi one of the most
distinguished machine tool builders in the international market
Along more than 77 years, Romi has built
a reputation of a company capable of
generating innovative solutions.
Romi is recognized for its leadership in
the business segments of Machine Tools,
Plastic Injection Molding Machines, Cast
Iron Parts and High Precision Adjustable
Boring Systems and its manufacturing
complex is recognized as one of the
most modern and advanced in the capital
goods industry.
2
International
Patents that
validate Romi’s
investment in
technology and
engineering.
Permanent investments in R&D ensure
the cutting-edge technology of its
products
Romi continuous investment in research
and development through experienced
engineers and technicians drive the
company to serve customers with state-
of-the-art products. As a result, many
patents have been granted to Romi
in some of the most competitive and
industrialized countries.
Romi quality and environmental
management systems comply with the
highly respected international standards
ISO9001:2000 and ISO14001:2004.
Plant 16. One of the most modern and best equipped
machine tool factories in the world.
Worldwide presence
Romi is a dynamic, modern and
competitive company in the globalized
economy and its products are present
in demanding markets such as the USA,
Germany, Italy, England and Japan.
Romi sales and service network covers all
the Brazilian territory through more than
30 direct offices.
International market is covered by its
subsidiaries located in the USA and
Germany and through distributors sited
at strategic logistic centers around
the world, fully prepared to support
customers through supplying an
extensive range of services including
spare parts, technical information,
performing tests and machining
demonstrations.

Laser cutting machine for sheet metal:
high precision and productivity.
Spindle cartridges are assembled in an ultra clean
room, where the temperature, relative humidity and
the amount and size of particles in the atmosphere
are controlled.
Finite element analysis
guarantees high quality
beginning in the design
stage.
Finishing of Romi machining tools is accomplished
with high precision equipment.
Computerized
three-dimensional
measuring
equipment for
geometric checking
of machined parts.
3

Examples of parts produced
4
Excellent versatility
at several operating
levels with accuracy
and productivity.
Designation for European market: M 420
Designation for USA market: M 17
Equipped with optionals:
quick change tool holder and universal chuck. For the USA
market, the fixed cover over the tailstock is an optional.
Designation for European market: M 510
Designation for USA market: M 20
Equipped with optionals: 8-station disk type automatic
turret and hydraulic chuck.
Remark: CE safety regulation compliance for Europe Community only
M Series lathes are extremely versatile
machines that can be used for machining
many different types of parts. They
offer the user superior productivity and
precision.
The interactive numerical control of the
M Series provides the ease operation
of an engine lathe with the productivity
of a CNC lathe. These features are
combined with high rates of metal
removal, rapid positioning and excellent
machining precision.

Designation for European market: M 580
Designation for USA market: M 23
Equipped with optionals: hydraulic tailstock, 8-station
disk type automatic turret and hydraulic chuck.
Designation for European market: M 680
Designation for USA market: M 27
Equipped with optionals: hydraulic chuck and 4-station
square automatic turret.
Designation for European market: M 850
Designation for USA market: M 33
Equipped with optionals: hydraulic tailstock and
8-station disk type automatic turret.
Remark: CE safety regulation compliance for Europe Community only
5

CNC with interactive
programming and operating
system.
GE-Fanuc 21i with
multi-language screens
high performance and
reliable numerical control.
Headstock with a high
precision spindle that
provides rigidity for heavy
cutting.
Headstock structure is
very rigid and is designed
to absorb the vibrations
inherent in heavy cutting.
Transmission by poly-V belt:
greater power transmission
efficiency and lower noise
level.
High power and high
torque drive unit.
Rigid structure, designed
as a CNC lathe, provides
better surface finish, and
increases the life of the
machine and your cutting
tools.
6
Machining area
completely enclosed
with front sliding
doors.
Control carriage:
versatility for the
operator.

Carriage and cross slide
guideways are coated
with Turcite to permit fast
acceleration, higher feed
rates and provide longer
useful life of the machine.
Hardened and ground cross
slide and bed guideway
ways are automatically
lubricated.
Very rigid and stable
lathe bed.
Heavy duty tailstock is
manually operated.
Optional power operated
quill.
Servomotors coupled to
high precision ball screws
assure accurate positioning,
repeatability, as well as
fast acceleration and
deceleration.
Interface for optional chip
conveyor.
7

Headstock
Driven by AC motor through pulleys and
a poly-V belt, speeds are continuously
variable. The main spindle is supported
by permanently lubricated high precision
bearings.
The bearings high load capacity provides
rigidity and superior vibration dampening
under the most severe cutting conditions.
The result is precise parts with the
desired surface finish.
Headstock, geared with 2 speed ranges
(M 23 / M 580, M 27 / M 680, M 33 / M 850
and M 43 / M 1100).
Control apron
Provided with the electronic handwheels
that control the manual movement of the
X and Z axes, switches and a joystick.
All the necessary controls for manual
operation of the lathe are located here.
The control apron is outside the guards
and can be uncoupled from the carriage
for automatic operation.
Patented in Brazil and USA with
correspondent patent application in
England, France, Germany, Italy, Mexico
and Spain.
8
Direct drive headstock
(M 17 / M 420 and M 20 / M 510).

Lathe bed
The bed is supported by cast iron
columns. The bed and columns have
extensive internal ribbing to provide
superior absorption of vibration during
any machining conditions.
The plane and prismatic guide ways
are induction hardened and ground and
constitute a self adjusting system that
guarantees full contact of the carriage on
the bed.
These features are critical to provide
rigidity, stability and precision during high
stock removal operations.
Tailstock
With manually operated quill. Heavy duty
structure provides the necessary rigidity
to support heavy parts and heavy cutting.
Tailstock with pneumatically driven quill for M 17 /
M 420 and M 20 / M 510 (optional).
Carriage and
cross slide
The cross slide guideways are induction
hardened and ground.
The carriage guideways are coated
with Turcite, a low friction material that
enables precision movements and fast
acceleration and deceleration. For greater
lubrication efficiency the Turcite has an
extensive system of oil grooves that
allow the smooth flow of oil as well as
lubrication retention in key areas.
The low friction material and the effective
lubrication system guarantee greater
resistance to wear of movable parts,
providing longer machine
useful life.
Quick change tool holder with 2 or 3 tool attachment
sides (optional)
Tailstock with hydraulically driven quill for M 23 /
M 580 and M 27 / M 680 (optional)
Tailstock with manually or hydraulically driven quill
for M 33 / M 850, M 43 / M 1100 and M 51 / M 1300
(optional)
Turret (optional)
The M Series lathes can be equipped
with different turret types, designed to
support heavy duty machining operations.
8-station disk type automatic turret
4-station square automatic turret
Steady rest (optional)
The M Series can be equipped with
different steady rest types, designed to
support large parts like wagon shafts,
petroleum tubes, etc, during machining
operation.
“U type” steady rest with rollers
Table rest with rollets
9

GE-Fanuc 21i-T
Versatile and highly
reliable control
The M Series offers the user the flexibility of
selecting different operating modes:
• Manual Mode
• Basic Mode
• Fixed Cycles Mode
• G Code Programming Mode
Manual Mode
Using the electronic handwheels, a workpiece can
be manually machined as in an engine lathe.
10
Basic Mode
The first work piece can be machined step-bystep
through the electronic handwheels and
simultaneously each step of the operation can be
recorded.
In this mode, the control provides canned cycles to
aid manual cutting, for example; taper and circular
machining.
Specific data for the operation to be performed
must be introduced in the respective command
screens using only one electronic hand wheel the X
and Z axes are moved simultaneously.
Movements and other commands can be recorded
as a program to reproduce parts geometrically the
same as the first one.
Fixed Cycles Mode
CNC possesses fixed cycles for:
• Roughing and finishing
• Grooving
• Thread cutting
• Drilling
• Rigid tap
It enables the operator to generate a program
based on information he has entered in the profile
generating graphic screens. The operator enters
the machining information (feed, speed, and depth
of cut) as guided by the software.
Profile Generating Screen - GE-Fanuc 21i-T.
The part geometry is inserted through a series of
lines and/or arcs.
As the part geometry is created, the profile drawing
is shown on the graph.
Once the part and program information is entered,
the machining simulation can be seen on
the screen.
Machining Simulating Screen - GE-Fanuc 21i-T
The program is developed in stages properly
sequenced to generate the machining operation.
Commands for tool changes, spindle speed and
miscellaneous functions (M) such as spindle direction
and coolant control are automatically recorded
and introduced through a soft key at the proper
stages in the program.
Mode for G-code programing
The program can be developed directly in G-code
language, operating as a typical CNC lathe.
Remote Diagnostic
(Optional) (*)
The M Series machines can be equipped with
the optional Remote Diagnostic that enables the
analysis and solution of machine problems by a
Romi service technician located at a distance,
using a PC installed at Romi and a user’s telephone
line connected to the machine.
CNC information such as alarms, configuration
parameters, programs, etc. may be obtained for
remote problem analysis and solution, reducing
machine idle time and maintenance costs.
(*) Requires the optional: Remote Diagnostic Interface

Indústrias Romi SA
Av Pérola Byington 56
Santa Bárbara d’Oeste SP
13453 900 Brazil
Phone +55 (19) 3455 9199
Fax +55 (19) 3455 1030
export-mf@romi.com.br
www.romi.com.br
Romi Machine Tools, Ltd
1845 Airport Exchange Blvd
Erlanger, KY
41018 USA
Phone +1 (859) 647 7566
Fax +1 (859) 647 9122
sales@romiusa.com
www.romiusa.com
Romi Europa GmbH
Wasserweg 19
D 64521 Gross Gerau
Germany
Phone +49 (6152) 8055 0
Fax +49 (6152) 8055 50
sales@romi-europa.de
M Series / IN / AG - Printed in Brazil - Please recycle - Specifications are subject to change without prior notice.