High Precision CNC Centerless Grinding Machine Cylindrical Grinder for Bearing Rings, Valves

Product Description

HCGM-S250 High Precision CNC/PLC Centerless Grinder 1. Salient features:
1.1 For Grinding wheel and Regulating wheel
1.1.1. The grinding wheel designed for cantilever type, while grinding bracket fixed.
1.1.2. The spindle of grinding wheel adopted muti-plate long bearing bushed static-hydrodynamical oil film bearing.
1.1.3. The frame of regulating wheel moves for adjustment and workpiece fixed in order to equipped different feed devices. The spindle designed for double bracing type, as well as double cylindrical roll bearings, which with better rigidity, and higher precise grinding.
1.1.4. The regulating wheel feed slide is equipped double "V" roller guideway and servomotor that drives ball screws.
1.2. For Lubrication
1.2.1. Lubrication thermostat equipped in grinding wheel spindle.
1.3. Electric
1.3.1. AC frequency converter is used for regulating wheel step-less speed control, as well as reverse towing prevent function.
1.4. Dressing
1.4.1.Gear motor drives the ball screw & double "V" roller guideway are adopted on grinding wheel dresser. 1.4.2. Gear motor driven the ball screw & double "V" roller guideway are adopted on regulating wheel, step-less speed.
1.5. Cooling system
1.5.1. The coolant system is equipped with magnetic coolant separator.
1.6. Control system
1.6.1. Touchable panel, automatic plunge-cut grinding, the load, speed, time and step adjustable
1.6.2. PLC and CNC control systems optional.
1.7. Machine body and design
1.7.1. The modularization design has good looking. Its configuration can be selected as client needs.
1.7.2. Iron casting with high rigidity, natural aging.
2.Technical Data

Thru-feed	1)Grinding diameter	2-60mm
	2)Grinding length	300mm
Plunge-feed	1)Grinding diameter	2-60mm
	2)Grinding length	240mm
Grinding wheel specifications		P500*250*305mm
Regulating wheel specifications		P350*250*203mm
Grinding wheel speed		1338r/min
Regulating wheel speed(stepless)		10-200r/min
Swiveling angle of regulating wheel
1)In vertical plane		-2°~ 5°
2)In horizontal plane		-1°~ 3°
Regulating wheel min. feed amount		0.001mm
Grinding wheel dresser min. feed amount		0.01mm
Height from centerline of gri.wheel & reg.wheel to workrest		200mm
Cooling Water		200L/min
Total power of machine
1)Grinding wheel motor		18.5kw
2)Regulating wheel motor		3kw
3) Pump Motor		0.25kw
4)Lubricant Pump Motor		0.14kw
5)Magnetic coolant separator Motor		0.18kw
Overall dimensions		2500*1610*1600mm
Machine weight		about 5000kg
Machining accuracy
1)Roundness		0.001mm
2)Cylindricity		0.0018mm
3)Surface Roughness		Ra0.16um

3.Main configuration

Parts Name	QTY	Unit	Supplier
Control System PLC	1	set	Mitsubishi
Servo Motor	5	set	Mitsubishi
Touch Panel	1	pc	Mitsubishi
Inverter of Regulating Wheel	1	pc	Mitsubishi(optional)
Grinding Wheel Motor	1	pc	Wuxi(optional)
Regulating Wheel Motor	1	pc	ABB(optional)
gear motor	1	pc	Panasonic(optional)
Low Voltage Device	1	set	Schneider
Oil Temp.Coolant	1	pc	Wuxi
Ball Screw	1		Nanjing Technical Equipment Manufacture Co., LTD