High-rigidity Vertical Multi-process Grinding Machine NVGH-3T

High-spec machine with high rigidity, high power and high accuracy

Applicable for small/middle-size workpiece up to max loading weight 200kg(440lb), work spindle swing ø350mm(13.7in).

Continuous indexing function on wheelhead is equipped as standard. This high-accuracy indexing turret enables crowning operation.

Grinding spindle with high rigidity and high power is equipped to perform heavy duty grinding; 11.0kW internal / 10.0kW external grinding spindle.

Applicable for various needs for automation, profile grinding by optional TC-type with work spindle indexing function, etc.

User-friendly operation panel equipped with conversational programming software "GriPS Ⅲ" as standard.

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Specification

Range of internal grinding diameter	ø30 mm(1.2 in) ～ ø350 mm(13.7 in)
Range of external grinding diameter	～ ø350 mm(13.7 in)
Grinding length	ID 150 mm(5.9 in) / OD 320mm(12.5 in)
Work spindle swing	ø350 mm(13.7 in)
Workpiece height	450 mm(17.7 in) [including fixture]
Max. loading weight on work table	200 kg(440 lb) [including fixture]
Grinding spindle rotation speed	20,000min^-1 (Int./ATC) 5,100min^-1 (Ext.)
Floor space (W×D)	2,000 mm(78.8 in) × 3,700 mm(145.7 in)

Highlights

Continuous indexing function on wheelhead

High-accuracy indexing turret is equipped as standard on wheelhead, which enables crowning process on taper. Even with difficult workpieces, we still achieve process innovation by grinding ID, OD and face in one-time chucking.

Profile grinding with work spindle DD motor　TC-type

DD (Direct Drive) motor is available as a work spindle option. It enables high-speed and high-accuracy indexing of work table to perform profile grinding such as cam, curvic coupling, etc. DD motor is maintenance-free by having no wearing parts in the driving part which is another big advantage.

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