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GMC 20

Shortest production times per piece with up to 56 NC axes

Max. workpiece diameter
25 mm
Max. workpiece length
120 mm
Max. bar capacity diameter
25 mm
Control & software alternatives

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
Downloads & Technical Data
Technology segment
Horizontal Production Turning
Max. workpiece diameter
25 mm
Max. workpiece length
120 mm
Max. bar capacity diameter
25 mm
Magazine capacity
Max. capacity
Production Type
Large Series (1000 - 100.000)
Mass production (> 100.000)
Bar Feeder
Steel / Cast
Titanium / Inconel