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Double Station Valve Head & Seat Grinding Machine
Double Station Valve Head & Seat Grinding Machine

Double Station Valve Head & Seat Grinding Machine Double Station Valve Head & Seat Grinding Machine

Double station grinding machine is special purpose machine for engine valve. It is used for grinding head OD and chamfer, rough grinding seat face. the machine is double station grinding machine. it can process 2 PCS engine valve at the same time. Increase the quantity and efficiency. Suitable for mass production

Stem diameter :
  • 5-8 mm
Overall length :
  • 80-150 mm
Head diameter:
  • 20-50 mm
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Product Description

Double Station engine valve head & seat grinding Machine is used for grinding OD, rough grinding seat face. Ranging from Stem diameter 5 mm to 8 mm, head diameter from 20 mm to 50 mm, Length from 80 mm to 150 mm. Our equipment is continually upgraded with the latest technologies in engine valve manufacturing. Proving the processing efficiency, reducing labor intensity and save cost with automated engine valve production line. 

Main Feature


Mechanical Spindle 

6000 rpm high-speed spindle. Adapts Germany FAG precision bearing. High accuracy and easy to maintenance and changeover

One year warranty

control system

Control system 

Adapts Mitsubishi PLC Control system, Mitsubishi motion system & Mitsubishi touch screen 

All parameters can be set and display on touch screen

Can store more sets program, you can choose according to different process technology

Head face positioning

Feeding way & Positioning way 

Precision sliding table composed of linear guide. Moving according to air cylinder;

Head face of engine valve positioning, roller clamping assist.

loading system

Loading & unloading systemLoading & unloading system

The rails can meet different size valves and easy to adjust

The rest actions should carry out with grinding except for loading & unloading system 

Loading & unloading system has proper protection measures and don't affect the operator to change the fixture, wheel and other toolings

If the loading & unloading system is out of order, the machine will ring and stop the cycle.


Feed Slide

With X-axis and Y-axis, easy to operate through the touch screen. 

Technical Parameter

Before Processing 
Processing range Head diameter: 20-50 mm, Stem diameter: 5-8 mm, Length: 80-150 mm 
Material21-4N, 4Cr10Si2Mo, Imported: SUH:3, SUH:35, etc. Hardness: 25-45HRc
Run out of stem: 0.01 mm, run out of top of head: 0.1 mm  Seat angle: 45-60 degree 
Grinding allowance Within 4 mm
After Processing 
Processing accuracy
Head run out Max ±0.03 mm
Seat run out Max ± 0.03 mm
Roughness Max  Ra 1.6
Cycle time 7s/piece ( according to requirement )
Wheel CBN Wheel 
Total Power 

10 KW

Air Pressure 
0.4-0.6 Mpa 
Water Discharge 




Rough grinding seat face, head diameter and head chamfer 

Double station valve head & seat grinding machine is used for rough grinding seat face, head diameter and head chamfer. Using CBN Profiled wheel 

Double station grinding machine can process two pieces engine valve at the same time. It has two station, just one piece wheel


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