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W A T L O W

Application Guide catalog - 7347 Application Guide

Electric Heaters

Heaters Product Overview

Band and Nozzle Heaters This section of the Application Guideis devoted to electric heaters; their different types, methods of use and general calculations for determining specifications. If you’re unable to findor determine which type of Watlowheater will best suit your needs, call your nearest Watlow sales represent-ative. Sales offices are listed on the back cover of this Application Guide. Led by the high performance MI Band heater, the patented, flexibleTHINBAND
Electric Heaters ® heater and the standard mica band heater for specializedconstructions, Watlow’s band and nozzle heaters are ideal for every type of plastic processing equipment.Sheath materials available include stainless steel with mica insulation, stainlesssteel with mineral insulation and aluminized or zinc steel with mica insulation. •Maximum operating temperatures to 760°C (1400°F)•Typical maximum watt densities from 8.5 W/cm Performance Capabilities
2 (55 W/in
2 ) to 35.7 W/cm Cable Heaters •Extruders •Blown film dies •Injection molding machines •Other cylinder heating applications
2 (230 W/in
2 ) The versatile Watlow cable heater can be formed to a variety of shapes asdictated by its many applications. These small diameter, high performance units are fully annealed and readily bent to your desired configuration.Sheath materials available include Inconel Applications
® and stainless steel. Performance Capabilities •Typical maximum watt densities to 4.6 W/cm
2 (30 W/in
2 )•Maximum operating temperatures to 650°C (1200°F) •Plastic injection molding nozzles •Semiconductor manufacturing and wafer processing•Hot metal forming dies and punches•Sealing and cutting bars•Restaurant and food processing equipment•Cast-in heaters •Laminating and printing presses •Air heating•Heating in a vacuum environment•Textile manufacturing Applications
Inconel ® is a registered trademark of theSpecial Metals Corporation. 7