Crankshaft Miller GPM Series (Internal Type)
Movie
Machining Part
GPM-F Series
- Machining of Pin Journal , Main Journal, side/outer diameter of counter weight, and these compound machining.
GPM-U Series
- Machining R-Groove of Pin Journal, outer diameter of pin journal and semi-finish machining of width
(High accuracy spec machine)
Features
Compared with External Miller
- Highly Rigid Machine
- High Rigidity：Fixed outer cutter
- Highly rigid work support ： Used by Stationary chuck
- Komatsu NTC unique swing arm design
- High Work Efficiency
- No need crane: Light weight, small size cutter
- Highly Economical Machine
- Long tool life: High rigidity of machine
- Reduction of running costs: 8 corner inserts are usable.
High Rigidity Cutter
Rigidity:2.5 times of external cutter
Stationary Chuck makes High Rigidity of cutter support
Two times rigidity : Compared with workpiece rotating type
Unique swing arm design
Light weight, small size cutter (About 10kgs for GPM170)
System Integration
The latest system, with its high productivity and reliability, can be provided for the primary machining portion of the crankshaft production line.
System Integration
Specification
Main Specification
[mm]
| Items | Contents | GPM170F-5 | GPM190F-5 | GPM200F-5 | GPM240F2-3 | GPM320F2-3 |
|---|---|---|---|---|---|---|
| Processing Capacity |
Max. Length of Workpiece | 600 | 750 | 950 | 950 (1300) | 1500 |
| Max. Swing Diameter | 180 | 200 (190) | 210 | 240 | 320 | |
| E-d/2 | 25 | 30 (35) | 25 | 35 | 45 | |
| Suitable Workpiece | –3.5L | –5.5L | –7L | –12L | –32L |
[mm]
| Items | Contents | Unit | GPM170F-5 | GPM190F-5 | GPM200F-5 | GPM240F2-3 | GPM320F2-3 | |
|---|---|---|---|---|---|---|---|---|
| Number of main spindle |
2 (1) | 2 (1) | 2 (1) | 2 (1) | 2 (1) | |||
| Cutter | Inner Diameter | mm | 190 | 210 (200) | 220 | 250 | 330 | |
| Primary Dimension |
A | Width | mm | 4000 | 4300 | 4900 | 6400 | 6800 |
| B | Depth | mm | 3370 | 3570 | 3570 | 4000 | 4680 | |
| C | Work Height | mm | 1150 | 1200 | 1200 | 1400 | 1720 | |
| D | Height | mm | 2050 | 2150 | 2150 | 2550 | 3050 | |
| Machine Weight | kg | 17000 | 20500 | 21500 | 33000 | 60000 | ||
Layout
