Force Induced Calender Gauge Variations

Force induced variations result from the way the calender is operated and from previous process steps such as feed mill operation compound consistency from mixing In rubber calendering, … [Read more...]

Calender Roll End Actuator Wear -leads to inability to make small gauge corrections

Electric screw actuators are the most common type of calender roll end positioning system. The screw and nut operate under very high loads and thus experience significant wear even with proper … [Read more...]

More Calender Run-Out problems – Roll Water Passage

Most modern calender rolls are the drilled type. This means that water passages are drilled across the roll face under the surface. This effectively forms a radiator-like heat exchanger around the … [Read more...]

Calender Roll Surface Run-Out may actually be the bearings

Calender roll bearing smay have excessive run-out. The result is the same as, and will appear as calender roll surface run-out. Excessive bearing clearance will result in the roll shifting during … [Read more...]

Calender Rolls Seem to be Erratic? Check for Roll Eccentricity!

Calender rolls must be round and free of run-out at ambient temperature. Any run-out of the individual calender rolls will be amplified as the high spots and low spots periodically match up between … [Read more...]

On-Cal Gauge Calibration Procedure

(For a more detailed Calibration Procedure please refer to Chapter 14 of the FACTS 2001FS Manual.) Clean all debris from the Roller assembly wheels. Clean all debris from the Gauging roll … [Read more...]

Calender Roll Grind Profile Tech Tip

Any calendering system, with or without a FACTS, Inc. control systems will perform best with properly maintained calendering rolls. Calender rolls must be ground periodically to establish the proper … [Read more...]