Calender rolls

Calender rolls

are used to produce paper. Even the slightes flaw in the surface of the roll (e.g. pores or cracks) must be absolutely excluded, in order to guarantee the best possible quality of the end product.

“The more precise the grinding of the calender rolls,
the lower the product tolerances.”

Impressions – Calender rolls

Technical data

IndustryPVC-Folien-Herstellung
Common diameter300 – 875 mm
Common roll body length600 – 4,500 mm
Materialchilled cast iron Tuk 00 – Tuk 30,
forged steel, e.g. 42CrMo4,
34CrNiMo6, 30CrNiMo8, 58CrV6
Designcored, peripherally drilled with plug or ring sealing
Coatingwithout coating, chrome, tungsten carbide
Surfacecylindrically ground or ground with crown, polished, Ra <= 0.02 mm
PrecisionTIR and geometrical shape 0.002 mm
Special featureshot ground for best precision at operating temperature

Technical data

Industryrubber and tire production
Common diameter300 – 875 mm
Common roll body length600 – 3,000 mm
Materialchilled cast iron Tuk 00 – Tuk 30,
forged steel
Designcored, peripherally drilled with plug or ring sealing
Coatingwithout coating, chrome
Surfacecylindrically ground or ground with crown
PrecisionTIR and geometrical shape ≤ 0.005 mm