We have CNC spherical grinding machine for ball size from 1-48 inches. This provides a comprehensive grinding service for all the product line.  All machines are equipment with automatic control system panel to guarantee extremely close tolerance and smoothly rounded surface.

 No. Type Model Size DN
1 CNC valve ball grinding machine

QM250

Φ250

1''-3''
2 CNC valve ball grinding machine

QM380

Φ380

3''-8''
3 CNC valve ball grinding machine

QM580

Φ580

8''-16''
4 CNC valve ball grinding machine

QM808

Φ880

16''-24''
5 CNC valve ball grinding machine

QM1580

Φ1580

24''-42''
6 CNC valve ball grinding machine

QM2280

Φ2280

42'' -48''
Operation System Mitsubishi SYSTEM etc
Roundness 0.01
Roughness 0.2Ra
Coaxiality 0.05

Operation

This CNC valve ball grinding machine by means of the simultaneously rotating of the balls and the grinding plates to lap the ball surface

*Machine X direction movement to centralize the ball

*Machine Z direction movement to precisely control the ball dimension

*Through end frame movement and replace the rotating grinding plate in order to lap difference specification of the balls from 1’’-48’’

*With the hydraulic device to support the balls and top end stretch

*Top end and balls simultaneously rotating, eliminate the balls and the top end relative movement.