Breitenbach: Thermo rolls, calender rolls, roll shells

Thermo rolls

are ground with the highest precision. This allows for the lowest possible thickness tolerances of the paper sheet. Thermal rolls feature lowest possible temperature deviations on the surface.

"The more precise the grinding of the body,

the higher the quality of the paper sheet."

Impressions - Thermo rolls

Technical data

Industry	paper industry
Common diameter	300 – 915 mm
Common roll body length	max. 6,300 mm
Material	chilled cast iron Tuk 00 – Tuk 25, forged steel
Design	peripherally drilled, with displacement body
Journals	made from forged steel – bolted on
Coating	without coating, chrome, tungsten carbide
Surface	cylindrically ground
Precision	TIR and geometrical shape ≤ 0.002 mm
Special features	for water or oil heating up to 330 °C

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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	paper industry
Common diameter	300 – 915 mm
Common roll body length	max. 6,300 mm
Material	chilled cast iron Tuk 00 – Tuk 25
Design	solid, with centre bore
Journals	cast on, made from steel – shrunk in, made from steel – bolted on
Coating	without coating, chrome, tungsten carbide
Surface	cylindrically ground
Precision	TIR and geometrical shape ≤ 0.002 mm

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Roll shells

are made of chilled cast iron, gray cast iron or forged steel, depending on the application and requirements.

"The more precisely the inner-Ø is honed,

the better the dimensional and shape accuracy of the roll shell."

Impressions - Roll shells

Technische Daten

Industry	paper industry
Common diameter	300 – 810 mm
Common roll body length	max. 6,300 mm
Material	chilled cast iron Tuk 00 – Tuk 25, indefinite chill TM 05 (grey cast iron)
Design	pre-machined, finish machined and honed
Coating	without coating, with polymer coating
Surface	cylindrically ground, pre-ground for coating

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