
The honed surface is what your piston rings ride on. Get the cross-hatch angle wrong, or run the stones at the wrong dwell time, and rings will not seat. The NCH-450 takes the guesswork out: the operator selects bore diameter and length, the machine sets stroke speed, dwell and stone pressure automatically.
Programmable cycles are stored on the controller — pick a saved engine profile and start.
| Type | Specification |
|---|---|
| Bore diameter range | 45 – 250 mm |
| Bore length range | 60 – 450 mm |
| Spindle speed | 60 – 320 rpm, inverter controlled |
| Stroke speed | 10 – 40 strokes/min |
| Stone feed | Automatic, pneumatic, pressure adjustable |
| Control | PLC + colour HMI, 50 program memory |
| Coolant | Flood, with paper-band filtration |
| Main motor | 3 kW (spindle) + 1.5 kW (stroke) |
| Bore tolerance | ± 0.005 mm |





Note: Please specify colour and voltage of your choice, along with the extra equipment, at the time of placing an order.