Automotive
Customer applications

Typical applications

  • Engines, injectors, liners, turbo charger housings, common rail parts, steering components, brake drums, rocker arms, connecting rods

 

Typical requirements

  • Liners: constant crosshatch angle
  • Small engines: nikasil & chrome plated, blind bore
  • Injectors: tolerances < 0.001 mm, Rz < 1
  • Brake drums: constant surface texture, ̥ < 0.015 mm, blind bore
  • Gears: /O/ < 0.002 - 0.003 mm, surface Ra 0.2 - 0.3, perpendicularity connecting rods: bore parallelism, roundness, surface texture

 

Advantages of honing

  • Improved life time, replaces lapping, improves energy efficiency, lower emission rate, excellent tribology values

Peak performance in every cylinder
Honing for automotive engineering

From race engines to production vehicles: Sunnen ensures precision bore finishing in engine blocks, fuel systems, and transmissions. The result: greater efficiency, reduced wear, and peak performance.

Sunnen Solutions