Hydraulics
Customer applications

Typical applications

  • Axial piston pumps, hydraulic blocks, valves, hydraulic cylinders

 

Typical requirements

  • Blocks and valves: Tol. +/- 0.001 mm, O 0.005,
    /O/ 0.001 mm – 0.003 mm, surface Ra 0.2 – 0.4
  • Hydraulic cylinders: H7 / H8 tolerances

 

Advantages of honing

  • Piston pumps: improved life time, safe airplanes
  • Blocks and valves: higher pressure operation /
    efficiency due to high precision, no leakage
  • Hydraulic cylinders: high precision, long seal life

Tight, strong, precise
Honing for hydraulic systems

Hydraulic components operate under extreme pressure and require absolute precision and sealing integrity. Sunnen delivers ultra-precise honing for cylinders, valves, and control blocks – ensuring smooth pressure flow and long-term reliability.

Sunnen Solutions

Tube Hones

HTH-S Series

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Honing

VSS2xx Series

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Honing

SV30xx / SV31xx Series

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