Stainless steel armor Hotlock Coil Heater With Type J Thermocouple
1. Coil Heater Description
Coil heaters have a construction which is similar to high watt density cartridge heaters. These heaters are also known as high performance tubular heaters or cable heaters. They are used when you require highly focused heat with a low profile. They are usually installed where space available for heating is limited and are widely used on hot runner nozzles, and manifolds, die cast nozzles, packaging machines etc.
2. Electric Resistance Heater Characteristics
- Various Watt Density options available.
- Standard sizes available with various cross section
- Robust Design with Choice of Terminal Exits
- Designed for even heat profile
- Precision fit on Hot Runner Nozzles & Manifolds
- Highly Non-corrosive
- Maximum heat transfer due to more contact area
- Advanced Thermal Engineering
- CE Certified
- Available with built in Thermocouple
3. Electric Resistance Heater Parameter.
Standard Configuration
Material :304
Connector(cold side)(D1xU): Ф3.5x40mm
Unheated length(L1):45mm
Power lines,grounding wire length(L):1000mm
Surface treatment:sandblasting;

Sheath material | Chrome Nickel Steel |
Insulation material | High purity MgO |
Heating element | NiCr 80:20 |
Thermocouple | 'J' type (Fe K) 'K' type (Cr Al) grounded or ungrounded |
Connection Wires | Stranded Nickel wires with PTFE coating |
Power Tolerance | (+5% ,-10%) (smaller tolerances on request ) |
Insulation Resistance | ≥ 500 MΩ at 500V AC |
Current Leakage | ≤ 0.5 mA at 253V AC |
Sheath Temperature | 750°C |
Dielectric strength (high voltage test ) | Min. 1000V |
4. Electric Resistance Heater Application
- Plastic injection molding nozzles
- Medical, analytical and scientific instruments
- Restaurant and food processing equipment
- Cast-in heaters
- Laminating and printing presses
- Air heating
- Textile manufacturing
- Heating in a vacuum environment
- Semiconductor manufacturing and wafer processing
- Hot metal forming dies and punches Sealing and cutting bars