MTH I-2S_E-1S CNC
The only machine in the MTH fleet that grinds both internal and external surfaces on the same head, with 3 dedicated motor spindles. Built by Meccanica Torri Srl to MTH specification, rebuilt starting from an existing machine.
- Number of motor spindles
- 3
- Positioning accuracy (X and Z)
- 0.0002 mm
- Weight
- ~4.5 tonnes
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What sets it apart
Unlike the other internal grinding machines in the MTH catalogue (Voumard 110 CNC, MTH I-2S CNC), this machine also grinds external surfaces, thanks to a dedicated motor spindle with a wheel peripheral speed of up to 45 m/sec.
Technical specifications
| Specification | Value |
|---|---|
| Max internal grinding depth | 100 mm |
| Number of motor spindles | 3 |
| Internal grinding spindle speeds | 42,000 / 60,000 rpm |
| External grinding spindle speed | 6,600 / 18,000 rpm |
| Max internal wheel diameter | 50 mm |
| Max external wheel diameter | 100 mm |
| External wheel peripheral speed | 45 m/sec |
| Workpiece diameter (internal / external) | max 80 mm / max 50 mm |
| Max workpiece length | 350 mm |
| X-axis stroke | 650 mm, speed 6,500 mm/min |
| Z-axis stroke | 200 mm, speed 10,000 mm/min |
| Positioning accuracy (X and Z) | 0.0002 mm |
| C-axis speed | 1–400 rpm |
| Max eccentricity error | 0.0002 mm |
| Weight | ~4.5 tonnes |
| CNC | Siemens Sinumerik 840D SL |
Who built it
Built by Meccanica Torri Srl to MTH specification, rebuilt starting from an existing machine. Not a factory-new machine, consistent with the rebuilding approach of the whole MTH fleet.
FAQ
Is it the same machine as the MTH I-2S CNC?
No. They are two different machines: the MTH I-2S CNC grinds internal surfaces only, this one also grinds external surfaces and has a different specification table.
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