High Pression CNC Centerless Grinding Machine (Diameter 20-300mm)

Product Description

Machine tool characteristics

1. The guide wheel shaft of grinding wheel uses double-row roller shaft structure, sealed with grease, free of maintenance. It owns high rotation accuracy & rigidity, it's suitable for high-precision mass grinding. Both of grinding wheel & guide wheel shaft adopt double support structure, so as to ensure its sufficient rigidity.
2. The drive motor of grinding wheel lies in the rear side, to reduce vibration.
3. The guide wheel is driven by worm and gear, so it can bear the force uniformly, with stepless variable speed.
4. Guide wheel platform & guide wheel system of grinding and feeding:
Three layer structure. The superior layer is cone adjustment turntable, the middle layer is feeding guide rail, and the inferior layer is guide rail of guide wheel platform.
The guide rail is wide & thick, the fixing surface is plated with chromium, and the mobile surface is stuck with plastic, which owns high rigidity, high precision, high wear resistance & high vibration absorption.
It's driven & fed by ball screw & worm and gear together, so as to ensure the micro-advancing precision.
Machine tool parameters

Grinding diameter		φ20-φ300mm
Grinding maximum length		650mm
Grinding wheel specifications		φ660×660×φ304.8mm
Guide wheel specifications		φ400×660×φ254mm
Electric control device		Mitsubishi CNC system (CNC system can also be selected according to user needs)
Grinding wheel speed		63 m/s
Guide wheel stepless frequency conversion speed regulation		5-3000rpm
Grinding wheel motor power		75kw
Guide wheel spindle motor power		7.5kw
Working accuracy (standard test specimen)	roundness	0.001mm
	Cylindricity	0.002mm
Distance between center line to bottom surface of bracket		270mm
Distance between center line to bottom surface of the bed		1000mm
Tilt angle of guide wheel		+7°--3°
Machine dimensions		2500×3500mm
Machine weight		About 13.5 tons

Application scenarios:
Δ Compressor of air-conditioner & refrigerator: crankshaft,Bearing Sleeve,piston
Δ Car: Piston of air-conditioner, Universal joint pin, Water pump shaft, spiracle, piston pin, Oil needle etc.
Δ Household electrical appliances: Motor shaft
Δ Hydraulic pressure: spool
Δ Others: Stepped shaft, Pins, simultaneous grinding of various workpieces.
Δ Bearings: roller pin, pin roller, conical roller, Inner and outer rings.