Watlow High Temperature Foil Heater

The Watlow high temperature foil heater is designed for demanding applications requiring operating temperatures up to 1100°F (595°C). The etched foil element is noted for its excellent circuit pattern repeatability and superior heat transfer, which results from greater area coverage of the element. The Watlow high temperature foil heater's etched foil elements deliver more heat and up to twice the watt density of a wirewound element, providing longer heater life. Also, with etched foil elements more complex heat distribution patterns can be formed than with other type elements.

The Watlow high temperature foil heater is only 0.030 inch (0.76 mm) thick and is insulated with a mica sheet. The heater is fairly rigid and must be securely and uniformly clamped from both sides for support and good heat transfer during operation. The low mass design of the Watlow high temperature foil heater allows it to heat quickly while still yielding watt densities to 110 W/in2 (17 W/cm2) when operating at 500°F (260°C). Watt density should decrease as temperature increases.

The Watlow high temperature foil heater can be used to apply heat to the most complex shapes and geometries without sacrificing efficiency or dependability. With Watlow's customization capabilities, you have the maximum amount of freedom when designing your equipment.

Applications for the Watlow High Temperature Foil Heater

• Semiconductor industry: wafer processing equipment
• High temperature platens for laminating presses

Ordering Information

All Watlow high temperature foil heaters from Watlow are made-to-order. Please contact us to order a Watlow high temperature foil heater. To help us determine which Watlow heater will best satisfy your application requirements, please determine as closely as possible the size, voltage, wattage/watt density, operating temperature and required options of the heater you will need. Please consult the Watlow High Temperature Foil Heater Data Sheet PDF for additional information.