GM series - DMG MORI

www.dmgmori.com
Cam-controlled multi-spindle turning machines
GM 16 | 6
GM 20 | 6
GM series
Applications and parts
Machine and technology
Technology competence
Technical data
GM series
Six-spindle turning machines for modern
large-scale production.
With the GM series, GILDEMEISTER Italiana has developed a product line that combines the
full technological expertise of Europe's largest manufacturer of six-spindle automatic lathes
into one machine concept. It was done so successfully and developed so intuitively that multispindle turning machines remain the most economical for large-scale turned parts production,
not least because powerful, electrically-controlled AC drives significantly reduce cycle times.
The GM series offers benefits other than economic efficiency, for example, a high degree
of flexibility, which allows simple and complex turned parts with an outside diameter of up to
25 mm, to be machined in medium batch sizes. As option, up to four CNC compound slides
are used for internal and external contour turning or for thread cutting. A machine range
designed for highest precision results.
02
Automotive
Automotive
Hydraulics
Hydraulics
Valve
Dimensions: ø 12 × 28 mm
Material: Brass
Machining time: 5.2 sec.
Bushing
Dimensions: ø 12 × 16 mm
Material: 100Cr6
Machining time: 7.2 sec.
Nipple
Dimensions: ø 20 × 28 mm
Material: Brass
Machining time: 4.2 sec.
Bolt
Dimensions: ø 16 × 41 mm
Material: AISI 420F
Machining time: 11.2 sec.
Economical
Hydraulics
GILDEMEISTER Italiana cam-type
multispindle automatic lathes
are the best solution for fast and
cost-optimised production.
Piston
Dimensions: ø 22 × 38 mm
Material: Aluminium
Machining time: 14.2 sec.
03
Hydraulics
Connector
Dimensions: ø 13 × 43 mm
Material: Brass
Machining time: 6.4 sec.
Applications and parts
Machine and technology
êê GM 16|6
Technology competence
Technical data
GM series
GM 16|6: High economic efficiency
for small diameters.
Commercial success is only possible through economical production. GM 16|6 multi-spindle
automatic lathes maximise precision in the diameter range below 16 mm. Short travels and
high speeds – the six-spindle machine is not only highly productive, but is also very flexible
in its field of application.
Whether it is high-speed drilling, reaming or thread cutting, synchronous or long part
turning – a universal front-working slide with integrated tool drive not only allows a number
of machining options, but also eliminates additional investments. It is no longer necessary
to pay for additional special equipment or their installation costs. Shorter set-up times,
a higher degree of operating convenience and more precise results – GM 16|6 automatic
lathes optimise production processes through progressive technology.
04
Highlights
++ Ultimate machining precision with the Monoblock structure,
very high rigidity and thermal stability, Hirth coupling for
spindle drum locking
++ High-speed main spindles (9,000 rpm) for machining bars
up to 4 m in length
++ Adjustable minimum cycle time < 0.9 second, also for
double drop production
++ Short set-up times thanks to fine adjustment of the slides
and pre-adjustment of the tool holders
GM 16|6:
The economical automatic turning machines
for medium and large-scale production.
|1| Short travels for maximum precision
|2| Large working area with 6 spindles
1
05
2
Central block for ultimate stability and precision
++ Central block for guiding the front-working tools and pick-up spindles
for maximum stability and precision during machining
++ Optimal solution for machining parts up to 180 mm in length by guiding
the front-working tool carrier on the central block
Spindle drum with Hirth coupling
++ Positive locking of the spindle drum in the drum housing by a Hirth coupling
for ultimate stability and accuracy
++ Maximum rigidity and precision thanks to the closed frame structure of the machine
Applications and parts
Machine and technology
êê GM 16|6
Technology competence
Technical data
GM series
GM 16|6: Progressive technology
for increased productivity.
Increased productivity, perfect ergonomics, high precision and flexibility – GM 16|6
turning machines feature technology that does great things on the small diameter scale.
Highly dynamic AC motors delivering infinitely variable speeds and feeds reduce
com­ponent production times as well as non-productive times by increasing the efficiency
of rapid traverses. Maximum flexibility is possible through independent set-up of slide
traverses and opening and closing of the collets with simultaneous material feed at all
stations. An inte­grated quick-change system guarantees short set-up times. In order
to be able to provide ideal conditions for high precision production, the design of the
automatic lathe is based on a Monoblock with impressive thermal properties.
06
Highly stable machine concept
Maximum rigidity
through a machine construction based on a frame or portal
design to minimise distortion during machining.
Optimal damping properties
through machine bed, main spindle and front-working
tool carrier construction and the overhead bracing.
Maximum stability
through machining of workpieces from the front (no angle tools
required) and guidance of the front-working tools on the
central block.
Maximum thermal stability
through axially symmetrical machine structure.
Minimum temperature influence
in the working area by external drives for the main spindle
and front-working tools as well as the drives for traversing
in the Z and W axes.
1
2
07
3
1: Front-working and cross cam drives with adjustable ratio 2: Precise positioning of the spindle drum through Hirth coupling
3: Highly dynamic AC motors for minimised cycle times (0.9 sec.)
GM 16|6:
Monoblock machine structure.
Applications and parts
Machine and technology
êê GM 20|6
Technology competence
Technical data
GM series
GM 20|6: Maximum precision
with short cycle times.
GM 20|6 multispindle automatic lathes are the best-selling six-spindle automatic turning
machines at GILDEMEISTER Italiana. More than 4,000 have been sold all over the world.
This success is largely attributable to the high reliability of the machines.
The sales success also shows that the technology of the GM 20|6 automatic lathes
is at the highest performance level in this machine class, a fact which is of particular
advantage to the user. Thanks to the high degree of flexibility, it is possible to econom­­
ically produce medium batch sizes in short cycle times with this six-spindle machine.
Modern design, ultimate operating convenience, optimal functionality and electronic
monitoring and control systems – GM 20|6 multispindle automatic lathes set benchmarks
for the production of medium diameter workpieces.
08
Highlights
++ Component diameters up to 25 mm
++ High cutting efficiency due to maximum
speeds of up to 5,000 rpm
++ Electronically controlled AC drives as standard
to optimise cycle times
++ Maximum positioning precision of the
spindle drum in the µm range
Large and easily
accessible working area
with 6 spindles.
GM 20|6:
Extremely reliable with
maximum precision.
Applications and parts
Machine and technology
êê GM 20|6
Technology competence
Technical data
GM series
GM 20|6: New standards of productivity
thanks to sophisticated technology.
The technical configuration of the GM series has been improved for its application to the
GM 20|6 turning machines. Compared to the GM 16|6, these machines provide even more
ways to optimise processes and systematically boost productivity with their flexibility and
precision.
In line with the larger diameter range, the AC motors achieve speeds of up to 5,000 rpm
and higher cutting power. Additionally, the built-in thread-cutting drive and four optional
CNC compound slides for cross or longitudinal turning provide more machining options.
This ultimate flexibility in no way compromises the precision of these automatic turning
machines. On the contrary, the positioning precision of the spindle drum is in the µm range.
10
1
2
1: Parts up to 25 mm in diameter
2: Small diameter, deep hole drilling
with up to 120 bar coolant
3: Maximum flexibility and precision
for large series production
3
4: Final machining in the µm range in air-conditioned environment 5: Oil cooling for
smooth and high precision machining 6: CNC slide position 2, 4, 5 and 6 (optional)
11
4
5
6
Applications and parts
Machine and technology
Technology competence
Technical data
GM series
Demo parts
Connector
Sector
Electronics
Workpiece dimensions
Ø 6 × 18 mm
Material
AISI316L
Machining time
4.1 sec.
Bar diameter
Ø 6 mm
Coupling
Sector
Automotive
Workpiece dimensions
Ø 14 × 12 mm
Material
20MnCr5
Machining time
7.2 sec.
Bar diameter
Ø 14 mm
Bushing
12
Sector
Automotive
Workpiece dimensions
Ø 8 × 6 mm
Material
AISI 430F
Machining time
3.3 sec.
Bar diameter
Ø 8 mm
Screwdriver
Sector
Automotive
Workpiece dimensions
Ø 6 × 18 mm
Material
CuZn39Pb3
Machining time
4.2 sec.
Bar diameter
Ø 6 × 25 mm
Injection pump
Sector
Automotive
Workpiece dimensions
Ø 9 × 42 mm
Material
ETG100
Machining time
12.2 sec.
Bar diameter
Ø 9 mm
Bolt
Sector
Automotive
Workpiece dimensions
Ø 5 × 32 mm
Material
ETG100
Machining time
3.6 sec.
Bar diameter
Ø 5 mm
Coupling
Sector
Hydraulics
Workpiece dimensions
Ø 16 × 24 mm
Material
20MnCr5
Machining time
9.5 sec.
Bar diameter
Ø 16 mm
Bolt
Sector
Hydraulics
Workpiece dimensions
Ø 8 × 40 mm
Material
Brass
Machining time
4.2 sec.
Bar diameter
Ø 8 mm
Washer
13
Sector
Automotive
Workpiece dimensions
Ø 19.5 × 15 mm
Material
Stainless steel
Machining time
11.6 sec.
Bar diameter
Ø 19.5 mm
Shaft
Sector
Tool setup
Workpiece dimensions
Ø 20 × 45 mm
Material
11L44
Machining time
7.85 sec.
Bar diameter
Ø 20 mm
Connector
Sector
Automotive
Workpiece dimensions
Ø 24 × 22 mm
Material
AISI 316L
Machining time
10 sec.
Bar diameter
Ø 24 mm
Cleaning screw
Sector
Automotive
Workpiece dimensions
Ø 8 × 32 mm
Material
11SMnPb28
Machining time
3.6 sec.
Bar diameter
Ø 8 mm
Applications and parts
Machine and technology
Technology competence
Technical data
êê Power charts
êê Floor plans
êê Technical data
GM series
Power charts / Floor plans
GM 16|6
GM 20|6
Torque
(Nm)
100
Torque
(Nm)
120
Power
(kW)
25
Md (Max)
80
100
20
P (Max)
80
60
15
Power
(kW)
25
Md (Max)
P (Max)
20
Md (S1–100K)
15
60
10
P (S1–100K)
40
Md (S1–100K)
20
5
10
P (S1–100K)
40
5
20
0
5,000
4,000
3,000
2,000
2,300
1,777
600
1,314
2,450
800
2,832
2,680
28.5
502
943
780
1,376
Side view
1,190
GM 16|6
Front view
1,000
Speed
(rpm)
9,000
7,000
5,000
3,000
GM 16|6
2,065
14
1,000
Speed
(rpm)
0
1,107
5,512
GM 20|6
GM 20|6
Front view
Side view
3,951
190 410 200
190
1,185
2,505
1,897
5,407
1,800
1,934
1,810
1,190
900
780
500
1,435
15
300
478
52
650
1,120
1,538
1,925
1,370
1,260
GM series
Technical data
GM 16|6
GM 20|6
Bar diameter max. round
mm
16
20 (25)
Bar diameter max. square
mm
11
14
Bar diameter max. square
mm
14
17
Spindle pitch circle diameter
mm
165
180 (rigid table)
Bar feed
mm
80
(125) 100
Longitudinal slide travel
mm
63
86
Travel of longitudinal guide block
mm
–
50
Side slide travel position 1 + 2
mm
28
42
Side slide travel position 3 + 6
mm
28
42
Side slide travel position 4 + 5
mm
28
42
Cross slide travel, longitudinal
mm
45
50
Spindle speed infinitely variable
rpm
600 – 9,000
420 – 5,000
Cycle times infinitely variable
s
0.9 – 50
1.4 – 60
Rapid traverse time
s
0.45
0.7
Main drive power
kW
11
11
Footprint without bar magazine
mm
4,800 × 1,100
4,700 × 1,600
Footprint with bar magazine
mm
5,550 × 1,100
5,500 × 1,500
Net weight with bar magazine
daN
4,800
6,000
15
www.dmgmori.com
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