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Mills And Calenders

Polymer Mills

The basic design and construction of Farrel mills have been thoroughly tested for many years by thousands of successful installations for a variety of applications. A steady progression of improvements has brought them to their present-day point of high efficiency and refinement of design.

Laboratory Mills

There are two sizes of Polymill models available for laboratory applications and small scale production. Please see the Tecnolab® section for information on the Polymill equipment.

Standard Models

Specific information for specific applications will be furnished upon request. Special sizes are customer engineered and build to suit individual requirements and process conditions.

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Special Farrel Mill Features

Drilled Rolls – Provide the highest rate of heat transfer for fast temperature changes and efficient heating and cooling

Roller Bearings – For variable speed or slow speed rolls under high loads, they help maintain roll gap accuracy due to small bearing clearance. Simple grease-packed lubrication

Tip-Up Stock Guides – Guides are swung up by air cylinders for quick cleaning to avoid stock contamination

Hydraulic Roll Drives – For adjustable speeds and frictions ratios to increase or degrease work input, prevent “bagging” and direct material to the desired roll for strip take-off

Power Roll Adjustment – For changing roll gap setting, under load or making frequent changes

Hydraulic Nip Adjustments – Provides quick roll adjustments, overload protection and emergency quick opening. Three styles: 1) Simple, manual operation, visual positioning, overload protection 2) Coarse setting within 1/16”, programmable 3) Precision unit with servos and accurate LVDT for setting within .005”

Plows or Diverters – To promote lateral stock movement toward strip removal knives used on continuous compounding mills


Mill Processing Configurations
Roll Size Drive Roll RPM Typical Connected Power
12” x 24” 20 – 30 30 – 40
14” x 30” 20 – 25 50 – 75
16” x 42” 20 – 25 75 – 100
18” x 48” 20 – 35 75 – 125
22” x 60” 20 – 22 75 – 100
24” x 72” 18 – 20 150 – 250
26” x 84” 15 – 18 200 – 300
28” x 100” 14 – 17 250 – 400
30” x 120” 12 – 16 250 - 500

* All production rates should be factory verified
Calenders are specifically engineered for custom applications. For more information, please contact us.