Coating and doctor rolls, printing cylinders

Coating and doctor rolls

are used for coating, painting and impregnation of e.g. plastic film, paper, textiles, fleece materials and metal.

“The more precise the grinding of the rolls,
the higher the precision for dosing the quantity to be applied.”

Impressions – Coating & doctor rolls

Industry	various
Common diameter	220 – 600 mm
Common roll body length	300 – 4,000 mm
Material	chilled cast iron Tuk 00, mild steel
Design	solid, hollow
Journals	cast on, made from steel – shrunk in, made from steel – welded
Coating	chrome, ceramics, tungsten carbide
Surface	cylindrically ground, polished
Precision	TIR and geometrical shape ≤ 0.002 mm
Special features	grinding in mounted bearings and housings possible, tempered rolls available

are used for painting metal.

“The more homogenous the surface of the printing cylinder,
the better the print result.”

Industry	production of metal packages
Common diameter	e.g. 328.7 mm
Common roll body length	e.g. 1,090 mm, 1,155 mm, 1,280 mm
Material	chilled cast iron TR 120
Design	solid casted
Journals	made from steel – shrunk in
Coating	without coating
Surface	ground with crown and polished
Special features	roll body sharp-edged