Mechanical finishing

Highest precision is required

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Mechanical finishing

Steinhoff applies equally high standards when it comes to mechanical finishing of its rolls. We match our capabilities with customer's requirements and improve where possible. Typical values: out of roundness < 1 µm, positioning neck-barrel-neck < 3 µm, mating of barrels within 20 µm.

Our standards:

    • Out of roundness: ≤ 1 µm
    • Positioning neck-barrel-neck: ≤ 3 µm
    • Mating of barrel diameter: up to 20 µm

Available equipment

Our highly specialised equipment reflects state-of-the-art technology. We operate 16 turning lathes partially equipped with CNC, a CNC machining unit and a combined CNC turning/machining unit, along with 8 grinders.

All pieces of equipment are commensurate with our manufacturing limits, being max. unit mass of 12,5 tonnes, max. barrel diameter of 1050 mm, max. overall length of 6000 mm. Our machining lathe will accept parts of a total length of 8000 mm and a diameter of 1200 mm.

Special services

An extensive capability to treat hardened and non hardened roll sections of a variety of materials and geometries.

CNC-machining of flats and a variety of other drive configurations.


CNC-grinding of a variety of geometries including CVC, convex, concave, chamfered portions, .... CBN -grinding technology for handling high end roll materials and surfaces.


Application of integrated non-destructive testing :

  • ultrasonic testing.
  • vibration control.

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