Flat shielded mica heating resistors type r4
Usage:
Mica shielded flat heating resistors are intended for conduction heating of tools with flat faces. They are used to heat, from the outside, moulds, press plates, ovens, vats, etc.
Maximum temperature of use of mica shielded flat heating resistors: 350°C, maximum load 4.2 W/cm²
Technical description :
- Resistive alloy strip wound on a mica paper support;
- Mica paper insulation;
- Shielding in protected steel sheet or AISI 430 stainless steel;
- Min width: 20 mm, max width: 800 mm;
- Min Length: 20mm, Max Length: 2000mm;
- Thickness approximately 4 mm;
- Voltage: from 24 to 440V Single-phase or Three-phase.
Possible variants:
- Fixing holes, holes for the passage of probes, pipe tapping, etc.;
- Shielding in sheet brass, copper, etc.;
- Thermostat under hood;
- Built-in thermocouple;
- Counter plate in steel or stainless steel for resistance clamping;
- Flat resistor with sealed brazed shield;
- Addition of compensation plate, fold for better thermal conductivity.
Assembly:
The flat heater resistors are placed in grooves with a play of 2 mm on the width and a depth slightly greater than the thickness of the heater resistors (3/10 mm). They are clamped to the part to be heated with a steel or stainless steel counter plate. It is important to have good contact between the part to be heated and the resistance heaters to ensure proper operation and a good life of the resistance.
PHOTO GALLERY Shielded mica type r4 flat heating resistors
