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Reliable Valve Head & Seat Grinding Machine

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Product Description

The Valve Head & Seat Grinding Machine is a specialized machine used for processing engine valves. It utilizes a CBN (cubic boron nitride) wheel for the grinding process. This machine is capable of simultaneously rough grinding the seat face, outer diameter of the head, and chamfer of the head.


The machine is suitable for processing engine valves used in various applications such as lawn machines, motorcycles, cars, trucks, etc.


The process range of the machine includes stem diameters ranging from 5 mm to 12 mm, head diameters from 20 mm to 60 mm, and overall lengths from 80 mm to 220 mm.


The machine uses a CBN profile grinding wheel, which ensures high precision and efficiency in the grinding process.


It is equipped with an automatic load and unload mechanism, which reduces labor intensity and improves productivity.


The machine utilizes servo control, which provides greater accuracy in the grinding process.


The high-speed spindle used in the machine increases the grinding speed, resulting in improved efficiency.




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) The grinding wheel used in the machine is a CBN (cubic boron nitride) wheel.


2) The speed of the grinding wheel ranges from 80 to 120 meters per second.


3) The machine base is made of cast iron, providing stability and durability.


4) The spindle used in the machine is a mechanical spindle.


5) The required air pressure for the machine is between 0.4 and 0.6 megapascals (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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