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RK 211 Frame heaters, ceramic-insulated ECOWEMA®

Details & specifications

Application areas:

Heating of rectangular or square compounding extruder cylinders, tools and moulds.

Construction:

Heating conductor coils fitted in temperature-shock resistant special ceramic bricks. Surrounded in sheet aluminium for mechanical protection. Stable steel clamping frames with clamping system.
Insulating filler with sheet metal covering integrated in clamping frames.
Can be supplied with bores, thermal brackets and notches as far as technically possible.

  • Electrical power supply via contact fittings (plug) up to 16 A/250 V, cable terminal boxes with ceramic terminal block or permanently fixed connection-cable.

Also available in UL/CSA certified version on request.

Technical specification:

Mat. heating element: heater conductor coils surrounded in ceramic.
Mat. clamping frames: sheet steel 
Voltage: according to specification
Heating capacity: max. 7 W/cm²
Operating Temperature heating element max.: 600 °C without sheet aluminium, 350 °C with sheet aluminium
Wall thickness: ~40 mm
Height min.:  100 mm, increasing in 15 mm stages, 115, 130 mm etc.


Electrical Test Data

according to DIN EN 60204-1 (VDE 0113-1)
Dielectric strength: 1000 V AC
Insulation resistance: cold 1 MOhm at 500 V DC 


Power tolerance: ± 5%

Unless otherwise specified, our heating elements are rated IP30.
Special versions with a higher degree of protection can be manufactured upon request.