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Valve Head & Seat Grinding Machine

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Product Description

Valve Head & Seat Grinding Machine is special purpose machine for engine valve. Using CBN Wheel to process. The machine can rough grinding seat face, outdiameter of head and chamfer of head at the same time.

The machine can process engine valve of lawn machine, motorcycle, car, truck, etc.

Process range stem diameter from 5 mm to 12 mm, head diameter from 20 mm to 60 mm, overall length from 80 mm to 220 mm 

Using CBN Profile grinding wheel, high precision and efficiency;

Using automatic load and unload mechanism, reduce the labor work intensity;

Servo control, more accuracy;

High speed spindle, increase the grinding speed;




Process Parameter

Specification  MUG-B
Processing range Stem diameter  5mm to 10 mm 

Head diameter  20 mm to 50 mm 

Overal length  80 mm to 150 mm 
Material  21-4N, 4Cr10Si2Mo, WNB, SUH3, SUH35
Before process
Stem run out :0.01 mm  Head run out: 0.1 mm
Seat angle  45-60°
Grinding allowance

within 4 mm 

After process
Head run out  within ±0.03 mm 
Seat thickness  Within ±0.05 mm 
Roughness  Within Ra1.6 
Cycle time  7s
Grinding wheeel  CBN Wheel 


Main Feature

1) Wheel: CBN Wheel;

2) Wheel speed: 80~120m/s;

3) Machine base: Cast iron; 

4) Spindle: Mechanical spindle;

5) Air presure: 0.4~0.6 Mpa;


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  • Tel: +86-512-66294696
  • Phone:  +86-18136977277
  • E-mail: sales@tzjmachine.com
  • Add: No.20, Guangdian Road, Guangfu Town, Wuzhong District, Suzhou, China

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