Product News: Materials & Material Processing

Two-Roll Mill handles elastomeric and thermoplastic materials.

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Press Release Summary:

August 10, 2011 - Equipped with 2.5 hp sensor-less vector drive with built-in torque overload protection, Electrically Heated Prep-Mill® features variable roll speed of 0-30 rpm and adjustable gap from .005-.195 in. System utilizes 4 x 8 in. Acrotherm TK400 coated transfer rolls polished to mirror finish. In addition to operator trip bar over mill rolls, 2 operator kick plates will also stop drive when actuated. Prep-Mill® operates at temperatures up to 260°C with accuracy of ±1°C.

C. W. Brabender Instruments, Inc.

50 E. Wesley St., South Hackensack, NJ, 07606, USA

Original Press Release

Prep-Mill® Two Roll Mill is Newly Updated for 2011

Press release date: August 9, 2011

SOUTH HACKENSACK, NJ, - C.W. Brabender® Instruments, Inc./ -- The NEW C.W. Brabender® Laboratory Electrically Heated Prep-Mill® is a universal, heavy-duty machine designed for small-scale milling of elastomeric and thermoplastic materials. The Two-Roll Mill combines the features of precision construction, reliability and serviceability into a mobile and compact milling station, ensuring uniform batch-to-batch mixing characteristics. The electrically heated Prep-Mill® is designed to operate at temperatures up to 260°C, with an accuracy of ± 1°C. THE DRIVE
A heavy-duty high torque system - the Prep-Mill® drive is designed to provide high torque output from a 2.5 HP sensor-less vector drive with built-in torque overload protection. Monitored by a digital DC amp meter with torque overload indicator, including a digital RPM indicator - variable roll speed of 0-30 RPM. There are dial gauges installed over the rolls to accurately determine the roll gap setting. In addition to the operator trip bar over the mill rolls, two operator 'kick plates' will also stop the drive when actuated. The 'kick plates' are permanently mounted on both sides of the mill. There is also an 'emergency stop' on top of the unit. A 'Safety Guard' is installed over the top of the rolls for added security. The entire drive is mounted on a heavy gauge mobile cart. The cart includes a cabinet for storage of tools and accessories. FEATURES
The Electrically Heated Prep-Mill® utilizes improved transfer rolls coated with Acrotherm TK400 (RC 70), an extremely durable coating that substantially extends the life of the roll while providing top quality mirror finish and tolerances - suited for High Wear Resistance. o Electrically Heated 4"x8" Acrotherm TK400 rolls polished to a mirror finish
o Individual Temperature Controllers to control roll temperature
o Adjustable gap from .005" to .195"
o Standard friction ratio of 1.3:1 or 1:1 for Calendering
o Safety trip bar and operator kick plates with coupled electrical interlock
o Contoured roll guides prevent material from 'creeping off' the rolls and into the bushings
o "Flip-up" design for easy cleaning
o Brass stripping knife permits quick, clean removal of milled stock
o A mixing volume of approximately 250ml, depending on gap setting and bandwidth
o 'Safety Guard' over the top of the rolls and dial gauges for accurate roll gap adjustment

ABOUT C.W. Brabender® Instruments, Inc.
C.W. Brabender® Instruments, Inc. is a leading manufacturer of instrumentation for rheology, processing development, laboratory scale compounding, extrusion, mixing applications and moisture. For sample preparation, R&D, evaluation, quality control and production, C.W. Brabender® Instruments, Inc. is ...where quality is measured.

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