2.2 x 4.2mm Cable Heater With J Type Thermocouple And SS Braid Protected Leads
1. Coil Heater Brief Introduction
Coil and cable heaters are made by placing a pair of tiny coils or two lines of straight resistance wire inside a very dense MgO medium. This core is then inserted into a stainless steel shell. These high-performance heating cells can acquire temperatures of up to 1500° F.
A Coil Spring Heater in its unformed straight stage can have a maximum length of 6ft and its cross-section can be square or rectangular, while a cable heater can be 300ft long and is available in round cross sections. Thermocouple sensors could be installed internally at the tip or the middle of a heater.
Coil and cable heaters can accommodate "J" type or "K" type thermocouple sensors that could be placed internally at the tip or the middle of a heater. They can be made as well to have profiled or distributed wattage configuration.
The sheath material of standard cable heaters is stainless 304; their heating core is coiled or straight solid Nickel Chrome wire. Cable heaters can transmit up to 35 W/in2 heating capacity and can attain up to 15000F surface temperature.
Cable heaters could be coiled, to form coil heaters that are ideal whenever a large amount of heat is required in a confined space. Coil heaters have many applications but are mostly utilized as powerful heating cells inside hot runner nozzles in plastic injection molding.
2. Coil Heater Characteristics
- Standard sizes available with various cross section
- Various Watt Density option available
- Designed for even heat profile
- Precision fit on Hot Runner Nozzles
- Highly Non-corrosive
- Choice of Terminal Exits
- Advanced Thermal Engineering
- Available with in built Thermocouple
3. Coil Heater Parameter.
| Spring coil heater (H series) | 3.0x3.0
3.3x3.3
4.0x2.0
4.2x2.2
4.5x2.7 | Φ3.0 | Φ4.0 | Φ5.0 | 3.5x3.5
4.0x4.0 | 5.0x5.0 |
| Voltage | 220V,230V,240V |
| Power tolerance 115W-200W | +/-10% |
| Power tolerance 201W-2000W | +5%-10% |
| Out jacket length | 30mm~280mm |
| Diameter of the inner sleeve/wrapped diameter | 10mm~42mm |
| Unheating length | 45mm |
| Max power density | 9W/cm² |
| Heating Length tolerance | +/-0.05mm |
| Unheating length tolerance | +/-2.5% |
| Tolerance ID d ≤20mm | Without inner sleeve:-0.15mm
With inner sleeve:0.05mm~0.10mm |
| Tolerance ID d 20mm~30mm | Without inner sleeve:-0.20mm
With inner sleeve:0.05mm~0.10mm |
| Tolerance ID d ≥30mm | Without inner sleeve:-0.25mm
With inner sleeve:0.05mm~0.10mm |
| Tolerance cross section | +/-0.15mm | +/-0.20mm |
| Thermocouple | K,J,E | None |
| Material | 304,321,316 |
| Maximum working temperature | 650℃ |
| Die electrical strength | 800V | 1000V |
4. Spring Coil Heater Application
- Applications for Coil Spring Heater
- Hot runner nozzles
- Cutting & sealing bars
- Medical equipment
- Rod, pipe & tube heating
- Heat tracing
- Semiconductor manufacturing
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2.2 x 4.2mm Cable Electric Coil Heaters With J Type Thermocouple And SS Braid Protected Leads Images
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