USED FARRELL 4-ROLL INVERTED "L"

Used Farrel 4-Roll Inverted "L" Rubber/Plastic Laboratory Calendar Mill. 6" D x 13" L rolls. 500 degrees F max. roll temp. Up to 35 RPM. Fixed center roll w/ adjustable bottom, top, and offset. Full herringbone even speed gears on one side, Full herringbone friction gears on the other side. Nylon adjustable infeed guides. (2) adjustable twin knives on bottom roll. Cable safeties on both sides of frames. SCR drive w/ dynamic braking; Operators control station with variable speeds. Variable speed 7.5 HP motor. 3/460V. Serial# 73A1499.

Used Equipment Facts About This Machine
🔹 Manufacturer Info

Manufacturer: Farrel Corporation

Model: 4-Roll Inverted "L" Laboratory Calender Mill

Serial Number: 73A1499

Industry Reputation: Farrel is a respected name in heavy industrial machinery, specializing in calenders, mixers, and compounding systems for rubber and plastics.

🔹 Description
This used Farrel 4-Roll Inverted “L” Laboratory Calendar Mill is engineered for precision processing of rubber and plastic materials in R&D or pilot production environments. Featuring 6" diameter x 13" length rolls, this calender supports up to 500°F roll temperatures and operates at speeds of up to 35 RPM. The center roll is fixed, while the top, bottom, and offset rolls are fully adjustable, providing optimal control and versatility. The machine integrates full herringbone even-speed and friction gears, adjustable nylon infeed guides, and twin knives on the bottom roll for precise sheeting and trimming. Equipped with SCR drive and dynamic braking, it also includes an operator station with variable speed controls powered by a 7.5 HP variable speed motor (3/460V). Designed for lab or small batch operations in the rubber and plastics industries.

🔹 Specifications

Roll Configuration: 4-Roll Inverted “L”

Roll Size: 6" Diameter x 13" Length

Max Roll Temp: 500°F

Speed: Up to 35 RPM

Center Roll: Fixed

Top, Bottom, Offset Rolls: Adjustable

Gears: Full herringbone even speed (1 side), herringbone friction (other side)

Infeed Guides: Nylon adjustable

Knives: (2) Adjustable twin knives on bottom roll

Safety Features: Cable safeties on both sides

Drive: SCR with dynamic braking

Motor: Variable speed 7.5 HP

Voltage: 3 Phase / 460V

Control Station: Variable speed operator interface

Serial #: 73A1499

🔹 Applications

Rubber and plastic material testing

R&D laboratories for new compound development

Pilot production of thin rubber/plastic sheets

Mixing, sheeting, and trimming small batch compounds

Thermoplastic and thermoset material trials

Calendering elastomers in lab-scale production

Evaluating compound performance under high temp and pressure

Process simulation before full-scale production

Precision sheet making in rubber compounding

Educational and training environments for processing techniques

🔹 What Products Would This Be Used For?

Rubber test sheets

Plastic test films

Thin elastomer sheets

Laminated rubber compounds

Vulcanized rubber samples

Silicone material processing

PVC or TPE sheeting

Composite materials prep

Development of calendered coatings

Material durability testing sheets
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