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
| Industry | PVC-Folien-Herstellung |
| Common diameter | 300 – 875 mm |
| Common roll body length | 600 – 4,500 mm |
| Material | chilled cast iron Tuk 00 – Tuk 30, forged steel, e.g. 42CrMo4, 34CrNiMo6, 30CrNiMo8, 58CrV6 |
| Design | cored, peripherally drilled with plug or ring sealing |
| Coating | without coating, chrome, tungsten carbide |
| Surface | cylindrically ground or ground with crown, polished, Ra <= 0.02 mm |
| Precision | TIR and geometrical shape 0.002 mm |
| Special features | hot ground for best precision at operating temperature |
Technical data
| Industry | rubber and tire production |
| Common diameter | 300 – 875 mm |
| Common roll body length | 600 – 3,000 mm |
| Material | chilled cast iron Tuk 00 – Tuk 30, forged steel |
| Design | cored, peripherally drilled with plug or ring sealing |
| Coating | without coating, chrome |
| Surface | cylindrically ground or ground with crown |
| Precision | TIR and geometrical shape ≤ 0.005 mm |