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Calendering systems: product lines reviewed.

CALENDERING SYSTEMS PRODUCT LINES REVIEWED

BERSTORFF CORP.

Offers calenders with two to seven rolls for rigid and flexible PVC film. Product line includes many sizes from laboratory to high-capacity systems. Company delivers complete PVC film plants and supplies the knowledge to use them.

The Bekalex machine is a compact extruder/calender combination. Its components are a planetary-gear extruder, three-roll calender, and auxiliary equipment.

STEWART BOLLING CO., INC.

Manufactures a complete calender line, including basic calendars from 6 x 13 in. to 36 x 120 in. with complementary calender trains. Features include special dual-metal, high-modulus rolls with constant roll-face temperature drilling, roller bearings, high-modulus frames, hydraulic screwdown with a reported 0.1-mil accuracy, pinion stand, roll openings and changer, pick-off rolls, stretch rolls, roll crossing and bending, and computer controls. Consulting and engineering services are available.

CARL G. BRIMMEKAMP & CO., INC.

Distributors Collin laboratory equipment in two-, three-, and four-roll configurations with maximum roll diam. of 14 in. and maximum width of 39 in. Stretching, cooling, and winding equipment can also be provided.

BUSS AMERICA, INC.

For a description of Buss-Kneader continuous calender-feed systems, see Compounding, Mixing, Blending Systems.

EEMCO

Provides calenders and mills for plastic and rubber. Company offers various sizes and two-, three- and four-roll configurations. Also rebuilds worn equipment using large machining capabilities and coating screws with tungsten carbide.

ERIE MILL & PRESS CO.

Offers laboratory calenders and small production units. Equipment ranges from 6 x 13 in. to 14 x 30 in. Two- or three-roll units with wind-ups, let-offs, strip knives and stock guides are offered. Rolls are available with standard cores or drilled for cooling and heating.

FARREL CORP.

Provides complete calendering plants for outputs between 300 and 15,000 lb/ hr at 3 to 150 yd/min of flexible and rigid vinyls, ABS, urethanes, and polyolefins. Sizes range from 6 x 13 in. to 36 x 120 in. Features include special dual-metal, high-modulus rolls, roller bearings, quick-roll openings, quick-roll changers, special pickoff and stretch rolls, and standard or custom embossers. Project and installation engineering, as well as line rebuilding and upgrading are offered.

INDEPENDENT MACHINE CO.

Complete calendering, coating, slitting and winding systems are designed and manufactured in 6- to 108-in. widths. Company offers laboratory and production equipment. Systems are custom-designed for specific applications. Engineering services are also available.

ITALIAN TRADE COMMISSION

Complete calendering plants are available from Italian companies specializing in PVC and rubber processing equipment for floor tiles and wall coverings. Information is available from this office.

LEMBO CORP.

Offers design and fabrication equipment from stripper section to rewinds. Sections include stripper, either single or turret embosser section, annealing, cooling, gauging, and surface or turret winders. Pre-calender equipment for in-line laminating includes unwind "J" box, preheating, and put-on roll. Turret rewinds feature programmable circuitry for taper and constant tension.

Chrome-plated cooling and heating rolls with 200-in. roll face and gears are designed for maximum line speed and output. Available services include equipment upgrading, new component replacement, and installation.

POMINI, INC.

Serving North America from facilities in Cleveland, Ohio, this Italian firm offers high-precision calenders for rubber and plastics manufactured by Comerio Ercole, Italy. Calenders are manufactured in various configurations: three to four rolls in vertical Z, L and inverted L types. Company also offers a line of post-calender trains for mono-orienting calendered films. The patented take-off stretching unit and relaxing bed can be applied both on new calenders and on existing units.

PURNELL INTERNATIONAL

Offers "Calendrette" calender lines from Battenfeld Extrusionstechnik GmbH for producing rigid, semi-rigid, and flexible PVC film, with thicknesses from 3-30 mils, widths of 24-60 in., and capacities up to 2200 lb/hr. Systems are reportedly designed to provide space savings and flexibility. They work in conjunction with Battenfeld planetary-roller extruders to provide shorter extrusion paths for thermally sensitive materials.

RELIABLE RUBBER AND PLASTIC

MACHINERY CO., INC.

Offers two-, three-, and four-roll laboratory and specialty production calenders with up to 8 x 18 in. roll sizes, drives, gearing, and accessories to meet customer specifications. Rebuilt calenders are also available.

WEAN INDUSTRIES

Capacity of calendering systems ranges from 400 to 18,000 lb/hr. Calender rolls are from 18-in. diam. x 48-in. working face to 36 x 132 in. Company supplies partial or complete systems, including intensive fluxing mixers, mills, calender, stripper rolls, embossers, cooling drums, accumulators, and wind-ups. Engineering studies are also provided.
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No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 1991, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Title Annotation:1991-1992 Manufacturing Handbook and Buyers' Guide
Publication:Plastics Technology
Date:Jul 15, 1991
Words:722
Previous Article:Pelletizers and dicers: product lines reviewed.
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