GMC 20 by DMG MORI

GMC 20

Shortest production times per piece with up to 56 NC axes

Max. turning diameter
25 mm
Max. work piece length
120 mm
Max. bar capacity diameter
25 mm
Max. number of axes
56
Integrated motor spindle (ISM) with a C-axis (0,001°)
8,000 rpm
Max. number of tool pockets
25
Control & software alternatives
SIEMENS
Highlights

With experience from more than 4.500 CNC multi-spindle automatic turning machines installed worldwide

  • GMC 20 with central drive for all the six main spindles, up to 31 controlled NC axes and spindle stop and positioning as option
  • GMC 20 ISM with separate integrated spindle motor with C-axis for each main spindle, up to 56 controlled NC axes, machining highly complex workpieces
  • Bar diameter extension up to Ø25mm as option


Machine concept with maximum stability for high-percision workpieces

  • Maximum rigidity as a result of the stable portal structure of the machine to minimise distortion during machining
  • Optimum damping characteristics as a result of the machine bed, main and front-working tool spindle construction and the upper brace
  • Maximum thermal stability as a result of axially symmetrical machine structure


A solution for every workpiece

  • Radial tooling for the productive manufacture of complex workpieces with the possibility to mount double tool carrier, milling unit, polygon turning unit and multiple turret disc
  • Front-working tools for fast cycle time with overlapped front working operations
  • Pick-up spindle for back-working operation of complex workpieces

Top performance for high-batches produciton

  • 1 g acceleration of the linear axes for great dynamics and reduced per-piece production times
  • Movable and programmable (opt.) centre block for maximum stability during front machining
  • Up to 65% quicker and cost-effective retooling of the machine as a result of CNC-controlled axes
  • Quick change system for preset tools on the cross slides with < 5µm repeatability
Application Examples
Control & Software
Service & Training
Technical Data & Downloads
Work Area
Max. turning diameter
25 mm
Max. work piece length
120 mm
Max. bar capacity diameter
25 mm
Axes
Max. number of axes
56
Max. number of linear axes
21
Max number of C-axes
7
Main spindle
Integrated motor spindle (ISM) with a C-axis (0,001°)
8,000 rpm
Drive power rating (100% DC)
12 kW (AC)
Torque (100% DC)
115 Nm
Counter Spindle
Counter spindle available
Integrated motor spindle (ISM) with a C-axis (0,001°)
6,000 rpm
Drive power rating (100% DC)
10.7 kW (AC)
Torque (100% DC)
19.5 Nm
Tool carrier
Max. number of tool carriers
14
Max. number of tool pockets
25
Driven Tools / Max. tool speed
12 / 6000 rpm
Drive power rating (100% DC)
10.7 kW (AC)
Torque (100% DC)
19.5 Nm
Machine Size
Machine weight
10,300 kg
Floor Space incl chip conveyor, w/o inner coolant unit
7.9 sqm

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