2M9120A

Tool Grinder

This series of multi-purpose grinding machine is a kind of universal machine. It has both the characters of a universal cylindrical grinding machine and the characters of a tool and cutter grinding machine and is suitable for external grinding internal grinding and surface grinding as well as for sharpening general cutting tools such as various milling cutters, reamers, pinion cutters and straight fluted hobs, etc.
This machine is suitable for common small machine plants, tool workshops, repair workshops and research institutes of science and technology.

Specifications	2M9120A
Max. workpiece diameter	200mm
Max. workpiece length	500mm
Capacity
Workpiece diameter external grinding	5-50mm
Workpiece diameter internal grinding	10-50mm
Tool and cutter sharpening	200mm
Workpiece length external grinding	400mm
Workpiece length internal grinding	75mm
Tool and cutter sharpening	200mm
Surface grinding length x width ( being viced )	200x50mm
Workpiece weight	10kg
Workhead
Height of center	100mm
Center distance between workhead and tailstock	430mm
Center distance between left right tailstock	500mm
Taper of spindle bore	MT2
Speeds of spindle (50Hz)	110, 200, 300rpm
Swivel	±90°
Chuck diameter	Φ100mm
Wheelhead
Max. vertical travel	200mm
Max. transverse travel	200mm
Vertical feed per revolution of handwheel	2mm
Vertical feed per division of handwheel	0.01mm
Cross feed per revolution of handwheel, fine/coarse	1/4mm
Cross feed per division of handwheel, fine/coarse	0.005/0.02mm
Swivel in horizontal plane	±90°
Grinding wheel spindle speed (50Hz)	2500rpm (60Hz 2950rpm)
Max. grinding wheel diameter x width x bore diameter	200x20x75mm
Internal grinding spindle
Internal grinding spindle	13500rpm (60Hz 16000rpm)
Min. grinding wheel diameter x width x bore diameter	10x10x3mm
Max. grinding wheel diameter x width x bore diameter	25x20x6mm
Table
Max. travel	480mm
Traverse speed	≤7m/min
Travel per revolution of handwheel	17mm
Travel per revolution of knob	126mm
Max. swivel of upper table	+45°~-30°
Tailstock
Taper in center bore	MT2
Sleeve travel	14mm
Motor power	2.905kW
Overall dimension (LxWxH)	1520x1142x1338mm
Packing dimension (LxWxH)	1860x1360x1590mm
N.W./G.W.	1350/1700kg

Work accuracy
External	0.0015mm
Internal	0.0025mm
Cylindricity	0.005mm
Surface roughness external	Ra0.32μm
Surface roughness internal	Ra0.63μm