Hot Runner nozzle Coil Heater with Thermocouple J and K
Product Description
1. 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.
2. Coil Heater Structure
Press in brass coil heater, the coil heater is designed to beset in the brass sheating, can eliminate known problems associated with the casting process.
The machined path in the brass for the heater enables exact repeatability of heat profile. By never exposing the coil heater to molten brass there are no risks of shifted heater coils, or destruction of the thermocouple junction.
Flexible design options include internal, external "wound in" or external slotted type J or type K thermocouples.
For OEM application, HT-Elite can customize the brass sheathing upon request.
3. 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 |
Product Parameters
4. Coil Heater Parameter
Sheath Material |
MGO |
Resistance Wire |
NI Cr 80-20 |
Maximum Sheath Temperature |
700o |
Die electric Strength |
800 VA/C |
Insulation |
>5 M W |
Thermocouple |
J Type (Standard) or K Type |
Length Tolerance (Straight) |
5% |
Wattage Tolerance |
10% (5% Available Upon Request) |
REsistance Tolerance |
10% (5% Available Upon Request) |
Unheated Length |
50 mm Standard |
Dimension Tolerance |
Coil I.D. 0.1 to 0.2 mm |
5. Coil Heater Imported Raw Materials
a. The coil heater resistance is used German Nickel Chrome wire, can be coiled and straight.
b. The insulation material magnesium oxide powder is imported from USA; which ensures the high performance, fast response time and good unformity.
Heating photo for example
Our Advantages
6. Advantage:
1> Has quick heat dissipation, high insulation, greatly extend the service life of heater
2> Can be built with a Micro, Mini, Flat, Low profile, or Round Nexthermal Coil Heater.
Safety in use
3>Faster responding heater due to eliminated air pockets than cast in brass
Profile and heater orientation precisely repeatable
4>Thermocouple not exposed to molten brass temperatures - Improved durability
5>Potential for designing thin walled brass heaters to minimize OD impact
Faster responding heater due to eliminated air pockets than cast in brass
Packaging & Shipping
7. Package:
6. Coil Heater Application:
Plastic injection molding machines,
Holding tanks
Metallurgical analyzers
Pulp and paper processing
Blow molding machines
Oil reclamation equipment
Food and candy extruders
Labeling, bag sealing, hot stamping, heat trace, and packaging equipment.