Electric Coil Heater and Cartridge Heater Heating Element Hot Runner Heaters
Product Description
Coil Heater Working Principle
Electric Coil heater, also known as cable heater, convert electricity into heat through the process of Joule heating. Electrical current running through the element encounters resistance, resulting in heating of the element.
Coil Heater Structure
The main features of these heaters are 360o heated area, readily confirms to surface, fast response and quick heat transfer, helical coil design for superior performance, good resistance to corrosion and it can easily be coupled with J or K type thermocouple.
The integration of temperature thermocouple for the precise temperature control. It also provides the best combination of physical strength, high emissivity and good thermal conductivity to heat hot runner bushings and nozzles.
Coil Heater Standard Sizes
| Cross Section |
Total Length
/Heating Length |
T/C |
WATT/VOLT |
Lead Wire |
| 2,2x4.2 |
300/250mm |
J |
195W x 230V |
1000mm |
| 2,2x4.2 |
330/280mm |
J |
215W x 230V |
1000mm |
| 2,2x4.2 |
385/335mm |
J |
240W x 230V |
1000mm |
| 2,2x4.2 |
450/400mm |
J |
300W x 230V |
1000mm |
| 2,2x4.2 |
510/460mm |
J |
350W x 230V |
1000mm |
| 2,2x4.2 |
570/520mm |
J |
400W x 230V |
1000mm |
| 2,2x4.2 |
650/600mm |
J |
460W x 230V |
1000mm |
| 2,2x4.2 |
750/700mm |
J |
530W x 230V |
1000mm |
| 2,2x4.2 |
850/800mm |
J |
610W x 230V |
1000mm |
| 2,2x4.2 |
950/900mm |
J |
690W x 230V |
1000mm |
| 2,2x4.2 |
1160/1110mm |
J |
850W x 230V |
1000mm |
| 2,2x4.2 |
1360/1310mm |
J |
950W x 230V |
1000mm |
| 2,2x4.2 |
1600/1550mm |
J |
1100W x 230V |
1000mm |
| 2,2x4.2 |
1850/1800mm |
J |
1200W x 230V |
1000mm |
| 2,2x4.2 |
2300/2250mm |
J |
1300W x 230V |
1000mm |
| 2,2x4.2 |
2550/2500mm |
J |
1500W x 230V |
1000mm |
Coil Heater Parameter
| Sheath Materials |
Chrome-nickel Steel |
| Cross Section |
Circular, Square or rectangular |
| Insulation Materials |
USA High Purity MgO |
| Heating Element |
NiCr80:20 |
| Lead Wires |
TF, Fiberglass Insulated |
| Voltage Range |
Max. 250V, Standard 230V |
| Power Rating |
Depending on application |
| Power Tolerance |
+-5% to +-2% |
| Length Tolerence |
+-2% |
| Unheated Length |
25-50mm plus adapter connection |
| Minimum Bending Diameter |
6mm |
Electric Cartridge Heater: High Watt Density
Electric cartridge heater, also known as single-end tubular heater, one end can heat, another end is cold end. It is made of a metal tube put into the resistance alloy wire as the heating materials, the alloy wire is filled with good insulation high purity magnesium oxide as filler, the product has a big power, high thermal efficiency, fast heat dissipation characteristics.
| Resistance heating wire |
NiCr 80/20 wire |
| Sheath |
stainless steel 304,321,316, Incoloy 800, Incoloy 840 |
| Maximum temperature |
800 degree Celsius |
| Wattage Tolerance |
+5%, -10% |
| Resistance tolerance |
+10%, -5% |
| Voltages available |
380V,240V, 220V,110V,36V,24V or 12V |
| Length tolerance |
±1 mm |
| Diameter tolerance |
-0.02mm |
| Standard Cold Zone |
5-10mm |
| Delivery time |
7-10 working days |
| Insulation resistance (cold) |
≥ 500 MΩ |
| Maximum leakage current (cold) |
≤ 0.5 mA |
| Thermocouple Location |
type J |
| type K |
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