Wide Wheel CNC Centerless Grinding Machine for Bearings Rings Rollers Needles Long Bars Piston

Product Description

MK11250 Wide Wheel Centerless Grinder
1. Salient features:
1.1.Grinding wheel and Regulating wheel
1.1.1.The diameter of grinding wheel is 600mm, with strong grinding force.
1.1.2.The 600mm wide grinding wheel can increase the grinding allowance in a single pass, and decrease repeating, to raise efficiency.
1.1.3.The grinder designed for double moving wheels, while grinding bracket fixed. The frame of regulating wheel moves for adjustment and workpiece fixed in order to equipped different feed devices.
1.1.4. The spindles of grinding wheel and regulating wheel adopted five-plate short bearing bushed static-hydrodynamical oil film bearing, which with better rigidity,and meet the need of heavy loading grinding and precise grinding.
1.2. Electric
1.2.1.The regulating wheel feed slide is equipped plastic coated guideway and servomotor that drives high-precision turbine reducer to work, through the couplings driving ball screws. The minimum feed is 0.001mm.
1.2.2.AC frequency converter is used for regulating wheel speed control .
1.2.3.Gear motor driven the ball screw & stepless speed regulation are adopted on regulating wheel & grinding wheel dresser.
1.3.Cooling
1.3.1.The coolant system is equipped with magnetic coolant separator.
1.4.Control system
1.4.1.Touchable panel, automatic plunge-cut grinding, the load, speed, time and step level adjustable
1.4.2.PLC or CNC system optional.
1.5. Machine body and design
1.5.1. Equipped automatic plunge device in the grinder.
1.5.2. Iron casting with high rigidity, natural aging.
2.Technical Data

		1 Axis
In-feed Grinding	Dia.	10-250mm
	Length	590mm
Through grinding	Dia.	10-250mm
GW SPEC. (O.D.*width*I.D.)		600*600*305mm
RW SPEC.(O.D.*width*I.D.)		350*600*203mm
GW Speed		1110r/min
RW Speed (stepless)		10-200r/min
Swiveling Angle of RW	Vertical	-2°~ +4°
	Horizontal	0°~ +3°
GW min feeding amount		0.001mm
GW dresser min feeding amount		0.001mm
Height from center line of GW & RW to work rest		335mm
Cooling water flow		200L/min
GW Motor		45kw
RW Motor		3kw
Power Supply		3N 60HZ 440V
Dimension(L*W*H)		3700*1850*1820mm
Machine Weight		About 11 tons
Accuracy (standard bars)	Roundness	0.002mm
	Cylindricity	0.005mm
	Roughness	Ra.0.32μm

3.Main configuration

Part Name	Specification	QTY	Unit	Supplier
PLC or CNC	FX Series	1	Set	Mitsubishi(optional)
Servo Motor		1	Set	Mitsubishi(optional)
Touch Panel	10.4 inch	1	Set	Kunlun Tongtai
Inverter of Regulating Wheel	3.7KW	1	pc	Inovance
Grinding Wheel Motor	Y2 45KW	1	pc	Wannan
Regulating Wheel Motor	Y2 3KW	1	pc	Wannan
Low Voltage Device		1	Set	Chint
Ball Screw		5	Set	Nanjing Technical Equipment Manufacture Co., LTD

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