4.2*2.2mm, 3.5*3.5mm
ISO9001, CE
Electric Coil
Ni-Fe
Spiral Heating Element
Tubular
+-10%
Electric
Custom Size
Custom Size
1500c
no
PVC Pipe, Carton Box, Wooden Case
Rectangular, round, square
China
851690100
Product Description
Spring Coil Heate Industrial Heating Elements
1. Coil Heater Working Principle
Coil heater with required length, wattage, voltage, can be coiled or bend to any shape when the end user want. They are fully annealed and can acquire any shape, they should be formed to a final shape in a single attempt.
Heaters can be coiled to lengths greater than shown with or without wattage profiling. Coil lengths can be much longer than those shown depending on coil spacing.
Coil heater with required length, wattage, voltage, can be coiled or bend to any shape when the end user want. They are fully annealed and can acquire any shape, they should be formed to a final shape in a single attempt.
Heaters can be coiled to lengths greater than shown with or without wattage profiling. Coil lengths can be much longer than those shown depending on coil spacing.
- Coil lengths based on a closed coil. Coils can be stretched for distributed wattage and/or much longer coil lengths.
- All heaters are 230V.
- All heaters have 1000mm leadwire with stainless steel overbraid PVC, fiberglass and a ground wire.
- Heaters are available with and without thermocouple.
- Most heaters are 4.2*2.2mm square cross section.

2 . 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 |

4. Coil Heater Parameter
1.Spring ring heating specification:heating section:2.2×4.2 3×3 3.4×3.4 3.5×3.5 5.4×4mm
2.Heating coil ID 10mm-38mm.heating height of ring:40mm-200mm
3.Voltage:220V-380V,wattages:200W-3000W
4.Built-in thermocouple power:wuth or without J/K thermocouple,length of lead wire as 500mm 1000mm 1200mm 1500mm or 2000mm
5.Continuous Operating Temperatures to 1200ºF
Intermittent Operating Temperature to 1500ºF
6.Spring heating ring advantages:high working temperature,fast heating,long service life,convenient installation

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
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

6. Advantage:
- Good for purchasing by large quantity, easy to pack.
- Fully annealed.
- Ender user can change the shape accordingly.
- Good unformity.
- Rapid response.

7. Termination:
Plain leads with high temperature sleeve
High temperature lead wire with a fiberglass jacket exiting from a transition bracket, which sealed with high temperature cement.
Stainless steel braided
The stainless steel braid, provides abrasion resistance and maintains high flexibility.
Plain leads with high temperature sleeve
High temperature lead wire with a fiberglass jacket exiting from a transition bracket, which sealed with high temperature cement.
Stainless steel braided
The stainless steel braid, provides abrasion resistance and maintains high flexibility.















