Cold Grinding & Hot Grinding for Calender Roll

Bannor offers diverse calender rolls, advanced processes like hard chrome plating, and comprehensive services including design and regeneration. With precision machinery, they ensure top-quality products for global clients.

General Introduction for calender roll

Product processing range: 180mm – 1200mm, maximum length of 6000mm.

Product processing process: electroplating hard chromium, old grinding, hot grinding, using the United States 3M abrasive precision machine polishing, inspection, packaging and hipping.

Electroplating technology: hard chrome plating on the surface, chrome plating layer between 0.15-02mm (according to customer requirements), hardness HRC60-62°.

Cold grinding technology: after electroplating grinding round, straightness, coaxiality < 0.0015mm.

Hot grinding technology: hot grinding at the same temperature as the actual work, eliminating straightness and coaxiality erors, and grinding straghtness and coaxiality & 0015mm.

Mirror polishing: surface roughness < Ra0.01 (finish 14), no vibration, stripe, hair, water ripple after mirror processing.

Calender Roll Process Technology

ELECTROPLATE

Surface hard chrome plating treatment, chrome plating layer between 0.15-0.2mm (according to customer requirements), hardness HRC60-62º

COLD GRINDING

Round after electroplating, straightness, coaxiality≤0.0015mm

HOT GRINDING

Hot grinding at the same temperature as the actual work, to eliminate the straightness, coaxiality error, after grinding the straightness, coaxiality < 0.0015mm