Internal miller GPM series

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100% Domestic market share

Workpiece-fixed internal miller matched to machining of medium and small crankshafts

 
  • Supports a wide range of processing
  • High Rigidity Structure
  • Minimize total cost
  • Outstanding operability and maintainability

Main Features and Specifications

Supports a wide range of processing

  • It can handle a wide range of machining operations, including not only pin journals, main journals, and their combined machining, but also counterweight side and peripheral machining.
  • High-precision specifications can also be used for pin journal R-grooving, pin journal circumference machining, and mid-finish machining of width determination.

Minimize total cost

  • Inserts can be used for up to 8 corners. Running costs are reduced.
  • Air consumption is reduced by the use of a chuck shutter.
  • Coolantless processing saves energy.

Highly rigid structure machine

  • The internal blade cutter, which is more rigid than the external blade cutter, is used for heavy-duty machining.
  • The fixed chuck system eliminates backlash and ensures high workpiece support rigidity.
  • Komatsu NTC's unique swing arm mechanism realizes highly rigid and low-vibration processing.

Outstanding operability and maintainability

  • Uses the latest automated programming system.
  • The operation panel can be used to check the operating location, fault location, and restoration method.
  • No crane is required* when replacing the cutter due to the use of a compact and lightweight cutter. This reduces the workload on the operator.
    *Except GPM240 and GPM320
Product name Max. workpiece length
mm		 Max. workpiece swing diameter
mm		 Max. machining capacity (E-d/2)
mm		 Target workpiece
Displacement		 Number of spindles Cutter inner diameter
mm		 Machine size
(W x D x H) mm		 Machine weight
kg
GPM150 450 145 25 ～1.5L 1 Φ152 2,200×2,200×1,500 6,000
GPM170 600 180 25 ～3.5L 2 Φ190 4,000×3,420×2,050 17,000
GPM190 750 190 35 ～5.5L 2 Φ210 4,300×3,520×2,150 20,500
GPM240 950/1,300 240 35 ～12L 2 Φ250 6,400×4,000×2,550 33,000
GPM320 1,500 320 45 ～32L 2 Φ330 6,800×4,680×3,050 60,000
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Internal miller GPM series