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Heaters and heating elements.

ACROLAB LTD.

Isobar heat pipes and isoplatens for optimizing thermoset and rubber molding. Isobars, together with steam, water, or electric heaters allow even heat distribution over core and cavity surfaces for faster cycle times and uniform curing.

AKINSUN HEAT CO., INC.

Heating elements, specializing in high-watt-density swaged cartridge heaters, electric infrared quartz radiant heaters, ceramic heaters, resistance coil heaters, thermocouples, temperature controls and accessories.

AMERICAN CATALYTIC TECHNOLOGIES

Flameless catalytic gas heaters for sheet- and roll-fed thermoformers. Systems convert propane or natural gas to longwave infrared energy in a flameless oxidation process, which can cut energy costs up to 80% when replacing electric IR elements. Presence of a platinum catalyst allows reaction to occur below the gas flame point. Heater surface temperatures range from 450-900 F.

BBC INDUSTRIES INC.

Electric panel-type heaters for thermoforming, powder coating, and paint curing. Fiberglass face emits heat across entire surface uniformly. Production series model available with a plain fiberglass face. Industrial and UL-approved Thermazone series has a stainless-steel grid on the face to concentrate heat and insulate from natural convective air currents. Units have a maximum operating temperature of 1000 F. Heater surface area ranges from 12 x 12 to 12 x 60 in.

STEVEN BENJAMIN INC.

Distributes ceramic and quartz infrared emmiters from Ceramicx Ireland. Support products and services include high-temperature wire, tape, terminal blocks and insulators; partial or complete oven rebuilding; custom machine-shop work for heat-process equipment; turnkey custom oven manufacturing; and control systems.

BESSAM-AIRE INC.

Direct gas-fired heating equipment and evaporative coolers. Make-up air heaters from 4000 to 50,000 cfm with ETL listing. Evaporative cooling delivers an effective temperature to 80 F. Reducing ambient temperature around injection molds reduces sweat. A 40,000-cfm cooler has 50-ft throw in four directions.

BLUE M ELECTRIC A GENERAL SIGNAL CO.

Electric ovens for laboratory and production use to meet ASTM and UL specifications. Also temperature/humidity, freezers, and temperature-cycling chambers for environmental testing.

BRISKHEAT CORP.

High-temperature, custom fit, fiberglass heating jackets for extruder barrels and transfer lines available with optional coated fabrics to protect against dripping and drool. Voltages available up to 480 v, wattage up to 12 w/[in..sup.2], and exposure temperatures up to 1000 [degrees] F. Also heat trace cable, silicone rubber pads, drum heaters, and high temperature heating tapes.

CASSO-SOLAR CORP.

Electric and gas infrared ovens, dryers, and heaters. Type C fused quartz, flat panel, Type FB flat quartz infrared heaters, gas catalytic panel heaters, high intensity heaters, and Unitube tubular quartz infrared heaters provide peak efficiencies by matching emissive wavelengths of heating elements to absorption wavelengths of product (Selective Wavelength Method). Typical systems include profile heating for orienting, annealing, laminating and stretching PET, PE and PP film; heating standard and glass-reinforced thermoplastic sheets for forming; and drying and curing coatings.

Heater configurations include multizone modules, optical pyrometer site holes, closed-loop control, custom shapes and sizes, and protective serf-cleaning faces. Prewired/prepiped assemblies to retrofit existing equipment.

Conveyorized systems, indexing systems, and stationary drawer systems heat reinforced composites and other plastics prior to stamp-forming and include optical pyrometers, multizone beater banks, and computerized serf-teaching controls.

CHROMALOX WIEGAND INDUSTRIAL DIV.

In-stock and custom-engineered Heatflo heating products include high-temperature and high-watt-density swaged cartridge heaters with long life and resistance to shock and vibration. Available in lead-wire and mounting configurations.

Mica, ceramic, and mineral-oxide insulated band and nozzle heaters in one- and two-piece construction with several clamping and termination options for temperatures to 1500 F.

Cast-aluminum and aluminum-bronze heaters and barrel heaters in a wide range of diameters and lengths for air- and fluid-cooling applications. Available pre-engineered in square, round, or rectangular plate configurations.

Radiant-heater styles include straight, hairpin, quartz, infrared, oven sections, ceramic and wide-area panels, and reflectors.

CLEVELAND PROCESS CORP.

Electric immersion heaters from 500 w to 36 kw available in stainless-steel, titanium, and quartz. Temperature controllers range from simple nonindicating type to digital with PID autotuning.

CONSTRUCTION TECHNOLOGY DIV. INVESTMENT MOLDINGS GROUP LTD.

Microwave and radio-frequency (electromagnetic wave energy) heating utilize magnetron systems with on/off time-proportioning control or amplitude modulation. Meet safety standards and FCC regulations.

In amplitude modulation, current power is adjusted to control instantaneous magnetron output. Remote sensors measure material temperature within microwave chamber or RF electrode arrangement and modulate magnetron power output to maintain temperature control.

For materials with minimal direct microwave and RF heating response, "susceptor" additives convert EMW energy to heat within the body of the material. RF energy and special susceptor additives can be used to yield advantages over microwave.

D-M-E CO.

Heaters and heating elements include band heaters, thermocouple cartridge heaters, and square-coil nozzle heaters.

Band heaters in six styles with operating temperatures to 900 F, I.D.s from 3/4 to 8 in., and wattages from 75 to 950 in 120- and 240-v models.

Cartridge heaters in conventional and high-watt-density configurations with operating temperatures to 450 F and 120- and 240-v models.

Conventional heaters in diam. from 1/4 to 3/4 in., lengths from 2 to 16 in., and wattages from 40 to 1250. High-watt-density units in 1/4- to 3/4-in. diam., lengths from 1 to 14 in., and wattages from 100 to 2200.

Square-coil nozzle heaters feature watt density to 106 watts/[in..sup.2] and operating temperatures to 1200 F. A 0.750-in. I.D. version available with and without thermocouple in 125 and 250 w, and 0.875-in. I.D. version in 125 or 250 w.

Two versions of 240-v high-watt-density thermocouple cartridge heaters for high-temperature applications to 1500 F. One has 3/8-in. diam., lengths from 1 3/4 to 8 in., and 200 to 775 w. The other has 1/2-in. diam., lengths from 3 1/2 to 7 1/2 in., and 420 to 975 w.

Also a line of conventional and thermocouple cartridge, square-coil, and rectangular heaters for internally and externally heated runnerless molding systems. (See also Hot-Runner Components and Systems.)

DALTON ELECTRIC HEATING CO., INC.

Watt-Flex split-sheath cartridge heaters with continuous coil reportedly give uniform temperature profile, often eliminating need for distributed wattage. Because unit has no coil segments and cold spots of conventional heaters, it is suitable for package and bag sealing bars. Hot-tip feature, accomplished by passing the coil across the tip of the heater, improves performance of sheet extrusion die or hotrunner gate probe by putting more responsive heat in the lip of the die or tip of the probe. Independent, bilateral expansion of the two legs effects contact of both sides of the sheath to a bore, providing better heat transfer and consequently a cooler-running coil. As heater is de-energized, it contracts, making heater removal easier and eliminating bore seizure. Grooved heaters externally accommodate needle-type thermocouples, which monitor process temperature, not internal coil temperature. Design allows independent replacement of thermocouple or heater.

DELTA MANUFACTURING CO.

Custom and standard heater products for injection molding, extrusion, blow molding, packaging, and thermoforming. Mica and ceramic heater bands, cartridge heaters, mica and ceramic strip heaters, and immersion heaters in stock. Specializes in large die-head heaters for pipe and conduit, and also wrap-around mica-insulated drum heaters for specialty products such as polymers and oils.

DESPATCH INDUSTRIES

Laboratory, batch, and continuous ovens used in a variety of applications, including annealing. Also temperature/humidity and temperature cycling chambers for environmental simulation testing.

DIEBOLT & CO.

Electrically heated, high-pressure (5000 psi) and high-temperature (650 F) flexible hose, tubing and pipe. Applications include coextrusion, striping, melt-pipe replacement, quick extruder connection, and general product transfer and viscosity control.

DUREX INDUSTRIES

Standard and customized cast-in heaters for extrusion equipment in aluminum, bronze, or iron provide continuous operating temperatures to 1100 F. Water- or aircooled constructions available as standard. Mounting configurations available in bolt-on or strap-on designs. Wide variety of termination options for electrical heating and cooling-tube elements.

EZ HEAT CORP.

Electrical heating elements include mica bands, nozzle heaters, mica strips, rectangular mica heaters, cartridge heaters, and bolt heaters.

FAST HEAT INC.

Swaged Hi-Temp cartridge heaters for fast heat transfer, high operating temperatures, shock resistance, and long life. Also available in standard, square and hole-punch design.

Better Band band heaters for superior heat transfer available in a sealed Better Band to protect against contamination. Economical mica bands with many termination options and extruded or cast aluminum. Also ceramic and Value band heaters. All band heaters available in a variety of diameters and terminations.

Strip heaters designed for efficient heat transfer and easy installation. Ultima strip heaters are capable of operating temperatures of 1200 F. Better strips, Sealed Better strips, and tinned strip heaters in many sizes and termination styles.

Tubular heaters are custom-made in various lengths, sizes, and configurations.

FOSTORIA INDUSTRIES, INC. PROCESS HEAT DIV.

Electric infrared ovens used for preheating material prior to forming.

GLENN ELECTRIC HEATER CORP.

Complete line of electric heating elements and related accessories. Products include Starflex band heater, which is an extruded aluminum band using refractory insulated tubular heating elements. Low-expansion clamping band provides snug barrel fit and assures heat transfer to maximum heater temperatures of 600 F. Mica band heaters also supplied. Both products are commonly used for injection molding and extrusion barrels, heads and dies. Starflex strip and mica strip also used in molds, platens and dies. Tubular heating elements manufactured in diam. of 0.200, 0.260, 0.315, and 0.430 for thermoforming applications.

Firebrand high-watt-density cartridge and standard low-watt-density cartridge heaters. Screwplug and flange heaters provided for liquid applications along with circulation heaters. All heaters can be provided in standard sizes, as well as custom designed.

GLENRO INC.

Infrared and engineered air systems for extrusion of profiles, film, hose, and medical and automotive tubing. Applications include heat-shrinking, sintering, curing, heating, drying and fusing. Precise temperature control. Ovens can be configured vertically or horizontally.

HEATRON INC.

Custom-designed heating elements include MAX2000 high-temperature and high-watt-density band and strip heaters, which are a combination of inorganic mica insulating materials designed to increase heater life and durability. Ceramax ceramic insulated heaters offer higher operating temperatures (1600 F) with longer service life at lower energy costs.

Patented nonstick cartridge heater eliminates need to apply release agents before installation, eliminates downtime, and reduces damage to equipment and tools, says company. Cartridges are standard sizes, needing no special boring.

Lightweight Heatflex flexible heaters insulated with materials such as silicone rubber and polyimide available in a variety of shapes and sizes for processes where heater operates below 500 F.

Also cast-in aluminum and bronze heaters with integral cooling tubes (also air cooling).

Specializes in heaters to OEM specifications or for OEM replacement parts. ISO 9001 registered.

HOTSET CORP.

High-watt-density cartridge heaters in standard sizes from 1/8 in. to 1 in. diam. Centerless ground sheath provides diameter tolerances of [+ or -]0.0008 in. Mediumwatt and low-watt density cartridge heaters for less demanding applications to 38 mm diam. in all exit configurations, with or without Imbuilt thermocouple.

Coil heaters in flat, square, 0.13 round, and mini and maxi designs. Available in straight lengths for custom forming. Maxi or cast heaters available for high-performance applications. Flat, square, 0.13 and maxi available with or without Imbuilt thermocouple.

Band heaters in mica and ceramic styles, plastic-proof construction and high-performance European-style bands. Standard exit variations and lock-up configurations provided.

HOTWATT INC.

Precision electric heating elements include cartridge, tubular, air process, immersion, strip and finned strip, band, foil, flexible Glasrope and ceramic heaters for a wide variety of applications.

IMS CO.

Range of heater bands from standard mica-core to low-profile keylock; and from super-high-watt-density to plastic-proof and expandable ceramic-insulated types. Also metric-size, mica-core bands.

Standard and built-in thermocouple cartridge heaters, heater and thermocouple wire, and other accessories for heater connection and use.

Bargain Basics Div. stocks common sizes of 120- and 240-v cartridge heaters, which feature an alloy outer sheath, ceramic core, and 24-in. internally connected leads. (See ad p. 283.)

INDUSTRIAL HEATER CORP.

Replacement band heaters for injection molding and extrusion in stock or custom designed include cylindrical, flat, and rectangular types. Also air-cooled and water-cooled heaters for extrusion.

Also cross-head heaters and ovens for wire and cable, cartridge heaters for various applications including molds and dies, tubular heaters for specialized air heating, radiant heaters for thermoforming, and cartridge and coil heaters for hot-runner mold systems.

INFRARED INTERNATIONALE OF NORTH AMERICA

Salamander Bold ceramic infrared heaters have cast-in thermocouple well (spring-load thermocouple optional), one-piece clip for easy installation, and temperature-indicating decal or full color element to identify element failure. Special large-trough elements provide uniform watt density over a large area. Three of these oversized elements fit together to form a 12 x 12 in. CRP panel of aluminized steel, prewired and fully insulated. Distributed by MOR Electric Heating Associates Inc.

INFRA-RED TECHNOLOGIES, INC.

Flameless infrared catalytic heaters fed by natural gas reportedly reduce energy costs up to 80% vs. electric heaters in thermoforming. Gas-Cat heaters operate at lower temperature than electric units. CGA and FM approved.

INFRASOURCE INC.

Vulcatherm ceramic and quartz infrared emitters from Vulcan in the U.K. come in a range of sizes and shapes, 751000 w, 120 v to 480 v. Also embedded thermocouples, reflectors or mounting devices, and ceramic terminal blocks.

INSUL-VEST, INC.

Insulated soft-sided ceramic heater bands, custom-designed insulated heater blankets and custom-designed insulation blankets for barrels, molds, and dies. Modular insulation blankets use high-temperature cloths and nonstick outer covers.

ITALIAN TRADE COMMISSION

Heating elements offered by Italian manufacturers.

MAYTAG CLARENCE COMPONENT PARTS

Heatube line of tubular electric heaters for applications, which include curing, drying, preheating, finishing, and thermoforming. Heaters are protected from moisture and contaminants by a metal sheath of various alloys. Watt density is determined by customer's specifications. Sheath diam. available in 0.200, 0.260, 0.315, 0.375, 0.430, and 0.475 in., and lengths to 200 in. Maximum sheath temperature should not exceed 1500 F. Heatube line includes designs suitable for aluminum extrusion, circulation, immersion, air-duct, round flange and vacuum forming applications.

MODINE MANUFACTURING CO.

Full line of unit heaters, duct furnaces, make-up air units, air turnover units, and other heating products.

NICKERSON MACHINERY

Heating elements include mica and high-heat mineral-insulated nozzle bands, cartridge heaters, mica and ceramic barrel heaters.

NOREN PRODUCTS, INC.

Noren Thermal Pin heat conductors (similar to heat pipes) transfer heat quickly and uniformly from one part of a mold to another. Commonly used to extract heat for mold cooling, but also to transfer heat into hard-to-reach mold areas in thermoset molding. Units cool cores and molds faster than water to reduce cycle time and draw heat from the plastic, transferring it to water channels or to the mold base. Uniform heat transfer eliminates hot spots pulling. Only one water line is required. Thermal Pins eliminate scale and plugging of small-diameter water channels going into the core, reducing maintenance, and can isolate old or damaged mold components from the coolant when seepage or leak problems occur. In blow molding, the hollow unit uniformly cools the end of the blow pin and evenly cools necks of blow molded bottles. More than 350 sizes stocked. (See data sheet p. 245.)

OGDEN MANUFACTURING CO.

Mighty Watt and Mighty Watt Plus cartridge heaters. Mighty Watt Plus allows thousands of combinations of size, rating, and lead configurations shipped from stock. SST and QST split-sheath insertion heaters provide improved conductive heat transfer and are easily removed from worn or poorly drilled holes.

Band heaters include Mighty Miser ceramic, Mighty-Tuff high-temperature, Aluma-Flex aluminum, and mica types. Replacement heaters for injection, extrusion, blow molding, thermoforming, and auxiliary equipment shipped from stock.

Also resin dryer and mold-temperature control heaters; and metal sheath, ceramic, flat-panel and quartz-tube infrared heaters for radiant process heating.

OMEGA ENGINEERING INC.

Heating cables and strip, cartridge, tubular electric, immersion, and band heaters, as well as laboratory and specialty units. Accessories include thermocouple, RTD, and thermistor sensors, along with associated wire, connectors and hardware. Also heating-system instrumentation such as controllers, meters, and computer interfaces. Line of ovens, and ceramic and other oven heating elements can be used as replacement components or to construct customized ovens.

OMEGA HEATER CO.

Ceramic and mica heater bands and strips; and cartridge, channel, ceramic air-cooled, east-aluminum (liquid and air-cooled) ceramic-fiber, radiant-panel, and roller heaters. Heater accessories, instruments, controls, and thermocouples. Stocks mica bands and cartridges. Also custom products.

ORYCON CONTROL TECHNOLOGY

Straight or preformed tubular heating elements, and swaged high-watt-density cartridge heaters with high-temperature leads supplied with or without thermocouples.

Patented plate heaters for hot manifolds with replaceable tubular heating elements pressed into slots and held in place by staked heater covers.

OSRAM SYLVANIA INC.

Range of high-temperature air and infrared ceramic heaters, controls, blowers, complete systems, and accessories. Air heaters reach temperatures to 1600 F. Hot-air system employs heater and control technology that cuts back power if the element gets too hot.

Infrared ceramic heaters with watt densities to 40 w/[in..sup.2] can be operated at surface temperatures to 750 F and last over 5000 hr. Glaze coating on heater surface changes color as it approaches operating temperature.

PLASTIC PROCESS EQUIPMENT INC.

UltraThin heater band constructed of high-temperature materials. Thin ceramic insulators inside result in low-mass construction, which improves control response and minimizes temperature lag and overshoot. Backside thermal insulation minimizes heat loss and lowers sheath temperature. Heater element is computer-designed for maximum wire size. Available in diam. from 3 to 14 1/2 in. and widths from 1 to 10 in. (See ad p. 220.)

PROCESS THERMAL DYNAMICS, INC.

Infrared heaters, heaters and controls, and oven systems for various applications. Products include annealing ovens (stress relief) for injection and blow molded parts for PC and other materials, heaters for preheating plastic prior to thermoforming, dry or cure heaters and ovens for plastic adhesive set-up or bonding, and plastics-related heat processing.

Q-SOURCE INFRARED PRODUCTS

Single and twin quartz tube infrared (IR) emitters and oven hardware. Quartz-tube IR emitters available in standard and fast responding models. Each single- and twin-tube IR emitter can be built to operate in either a horizontal or vertical plane. Optional integral gold reflector is cured onto the quartz tube, never needs cleaning, and assists in directing the emitter's IR energy to the substrate.

RADIANT ENERGY SYSTEMS, INC.

Heat-processing equipment, heaters, and ovens for processes such as annealing of molded parts; relieving stresses in welded and fabricated parts; heating of reinforced plastics for lamination, hot-stamping, etc.; preheating of fibers prior to pultrusion; and drying/curing of coatings and inks on film, sheet, etc. Specializes in annealing of 5-gal water bottles.

RAMA CORP.

Cartridge heaters in Incoloy sheath for temperatures to 1600 F, as well as stainless-steel for a more moderate temperature range of 1200 F. Coiled nozzle heater features 1000% more surface contact, high temperature connection, integrated thermocouple and proportioned profile heating.

Rama Flex heater provides moderate heat and even distribution on irregular and smooth surfaces. Rama Band and Rama Strip heaters are computer-designed and verified. Tubular healing elements constructed from high-quality materials to meet stringent application requirements. (See also Hot-Runner Components and Systems.)

RESEARCH, INC.

Line of modular infrared heating devices (SpotIR, LineIR, StripIR, PanelIR, ChambIR, Hi-TempIR, and SimulateIR) produce heat flux densities (-3 watts/[in.sup.2] to over 900 watts/[in.sup.2]) and radiation geometries (from 0.25 in. diam. spots to areas as large as 38 x 144 in.). Some heaters can heat targets to over 2000 F in seconds. Also ControlIR series SCR power controllers for heaters offer integrated heating systems.

ROSEMOUNT AEROSPACE INC.

Coiled coaxial electric heaters for injection molding offer unit to unit interchangeability ([+ or -]2% of nominal resistance tolerance) and are most often used to heat hotrunner nozzles and sprues. Heaters with axial or twin-screw clamps in stock for quick delivery. Most any combination of power, voltage and length can be specified. Distributed power along the length of heater element is available as well as custom profile coiling. Quick, small quantity custom builds available as well as continuous-run production of large quantifies. Heater element diameters of less than 0.060 in. are standard, with diameters as small as 0.040. New Slim Line heaters in low profile, and slip-on configuration.

SHUMAN CO.

Thermoforming machinery supplier offers its own quartz-tube infrared heater panels. Elements are completely enclosed on sides and back with galvanized casing; 2-in. ceramic-fiber insulation is placed directly behind the quartz tubes. Thus, all energy is reportedly radiated toward the sheet. Elements range from 8 x 24 in. with one zone to 24 x 24 in. with nine tubes divisible into one, two, or three zones. Tubes can be replaced individually.

SOLAR PRODUCTS INC.

Panel and tubular electric infrared heaters for thermoforming, screen printing, and paint curing. F-Series panel heaters have durable high-temperature quartz-composite emitter. G-Series panels have black high-temperature glass emitter. Both reach temperatures to 1800 F and do not need external reflectors. T-Series is a fast-response quartz-tube heater for up to 1800 F with internal reflector that will not degrade with time. M-Series panel-type heaters have either hard-coated aluminum or porcelainized steel face.

STEELMAN INDUSTRIES, INC.

Burn-off ovens for heat-cleaning screws, dies, molds, mixers, fixtures, tooling and rejects ensure that parts are not overheated. Ovens operate at low cost and fast processing time with no chemicals, wire brushes, or torches. Used for thermoforming, baking, preheating, and drying at temperature ranges to 500 F, 650 F, 750 F, or 850 F.

TEMPCO ELECTRIC HEATER CORP.

Electric heating elements, thermocouples, RTDs, temperature controls, and related accessories for injection molding, extrusion, and auxiliary applications. High-density (swaged) and low-density cartridge heaters for hot-runners and compression and injection molds, as well as for extrusion dies and welding equipment. Hi-density cartridge heater Terminator Lead Conversion Program guarantees 24-48 hr shipping on 26 custom terminations from 65,000+ in-stock high-density cartridge heaters in over 1000 standard sizes and electrical ratings.

Cast-in aluminum or bronze heater/cooler units, Mi-Plus mineral insulated band, Duraband mica band, ceramic insulated band, aluminum channel Maxiband, and tubular nozzle band heaters for injection molding and extruder barrels, heads, and dies. Mica, Maxistrip, and channel strip heaters for molds, platens, and dies. Tubular heating elements and E-Mitter ceramic infrared heaters for thermoforming.

Standard and mineral-insulated thermocouples, melt-bolt thermocouples, RTDs, protection tubes, thermocouple and extension wire. Melt pressure transducers and gauges.

Complete line of screw plug and flanged-immersion, and circulation heaters for liquid-temperature controllers used in mold-temperature regulation, as well as heavy-duty ASA-rated flanged-immersion and circulation heaters with power/temperature control panels. Available from stock or custom engineered/manufactures. Many products UL/CSA certified. (See ad p. 248-Tab.)

THERMAL INNOVATIONS CORP.

Quartz-tube infrared emitter systems used for curing and drying applications in metal finishing, thermoforming, and paper markets. Infrared energy sources available as gas or electric infrared.

THERMA-TECH CORP.

Infrared process heaters from elements to total systems and controllers. Heaters can be utilized over a wide temperature range with an accuracy of 2 [degrees] F. Efficient conversion of energy to infrared, 1-9 micron wavelength, temperature to 2500 F, heating time of 8 sec. through 4 min. Modules are compact, durable, easy to install, simple to operate and maintain. Standard and custom sizes available. Units are easy to maintain and withstand the shock of water splash, no scaling, or warping. Suitable for processes requiring clean room conditions and no environmental contamination. Engineering services and custom design available.

THERMEL ENGINEERED HEAT TECHNOLOGY, INC.

Industrial electric heating elements include cast-in aluminum or bronze band heaters and die heaters; thermastrip, mica, ceramic and nozzle band heaters; ceramic infrared heaters; tubular elements; strip, cartridge, radiant, immersion, silicone rubber, and drum heaters; and thermocouples.

THERMETIC PRODUCTS INC.

Coil and mini-coil heaters for hot-runner applications feature mini-coil design in diam. of 1/2 to 1 in. and lengths from 3/4 to 4 in. Power ranges from 125 to 600 w at 240 v. Hermetic construction for long life in adverse conditions. Low-profile axial clamp with auto-locking features allows easy installation inside smallest nozzle cavities. Available with standard Allenhead screw clamps. Standard flexible leads available in any length to allow bending to 0.1-in. radius in up to 900 F environment.

VALAD ELECTRIC HEATING CORP.

Hot plates in sizes from 6 x 12 to 36 x 36 in. All hot plates are fabricated from stainless steel cabinet with a 1/2 in. top plate with a machined aluminum surface. All units are ANSI ETL UL 499 approved.

VULCAN CATALYTIC SYSTEMS

Flameless catalytic gas heating systems for both roll- and sheet-fed thermoformers use long-wave infrared energy to reduce operating costs and enhance control and uniformity of process. Systems catalytically oxidize propane or natural gas. Manual and new touchscreen gas-pulse electronic control of pressure in individual zones.

VULCAN ELECTRIC CO.

Thunderbolt line includes cartridge heaters, band heaters, cast-in heaters, immersion heaters, and strip and tubular heaters. In-stock and custom-engineered products.

WAAGE ELECTRIC INC.

Band and strip heaters, tubular metal-sheath elements, immersion heaters, flanged immersion heaters, and heat-transfer systems with integral cooling. Also forced-air duct heaters and thermal-sealing hot plates.

WARREN ELECTRIC CORP.

Flanged, screw plug, circulation and over-the-side heaters for new applications and replacement needs. Flanges in steel or stainless steel with ratings from 150 to 1200 psi. Screw plugs in steel, stainless steel, or bronze. Terminal enclosure options include standard, weather-resistant, explosion-resistant, and high-temperature extended heads for use in high-temperature applications to reduce ambient temperature inside wiring enclosures. Heating elements of 321 or 316L stainless steel, steel, or Incoloy can be brazed or welded to flange.

WATLOW

Swaged Firerod cartridge heater with high-temperature and high-watt-density capabilities. Lead Adaptor program with patented lead connection technique permits same-day shipment on over 150,000 variations of Firerod.

Band heaters include MI Band, a high-temperature (1600[degrees] F max.) unit with a special mineral insulation that provides long heater life; and ThinBand heater featuring a flexible design for easy installation and replacement on barrel and fast heat-up and cool-down. ThinBand heaters available with Quick Clamp for easy installation. Spring loading maintains contact with barrel as heater expands on startup.

Also radiant heaters, quartz tubular elements, strip heaters, ceramic fiber heaters, cable and nozzle heaters, cast-in heaters, flexible heaters, multicell heaters, tubular heaters, immersion heaters, and circulation heaters.
COPYRIGHT 1998 Gardner Publications, Inc.
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 1998, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Title Annotation:1998/1999 Manufacturing Handbook & Buyers' Guide
Publication:Plastics Technology
Article Type:Buyers Guide
Date:Aug 1, 1998
Words:4323
Previous Article:Hot-runner components and systems.
Next Article:Temperature sensors, monitors and controls.
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HEATERS AND HEATING ELEMENTS.

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