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Engine Valve Straightening Machine Engine Valve Straightening Machine

Straightening machine for engine valve is special purpose machine with automatic loader and hoist,automatic straightening and automatic loading. it consists of machine bed, autoloader, unloader, straightening components, hydraulic station, hydraulic oil cooling system

Stem diameter :
  • 8-13 mm
Overall length :
  • 150-200 mm
Head diameter:
  • 50-70 mm
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Product Description

The equipment uses three roller spinning mode, PLC control. touch screen as interface. driven by servo motor. synchronize the valve head and stem alignment using high precision hydraulic valve to control swing arm wheel. equip with hoist to achieve one person monitor much multiple operations.

With the charateristics of high efficiency, high pass rate and reducing the intensity of labor and cost.

Main Feature

  • Synchronize the valve head and stem alignment, using dial to control the run out of head to stem and straightness of stem;

  • The speed is controlled by inverter. Straightening a piece when turn a half circle, running smoothly and quickly;

  • Automatic production;

  • Using Siemens or Mitsubishi system. easy to operate and reducing the labor cost;

  • Adjustment space position to meet the different size valve;

  • Indentation shallow on stem surface, non-destructive for stem;

Technical Parameter

#Name Parameter 
1Rod diameter 9-13 mm 
2Overall length 150-220 mm 
Head diameter 30-60 mm
Material 21-4N, EN-52, Nim80A, Inc751
5Run out of seat 0.15 mm max 
6Run out of stem 0.1 mm max 



straightening machine

Straightening head & stem of engine valve at the same time 


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