Wuhan Global Metal Engineering Co., Ltd
Wuhan Global Metal Engineering Co., Ltd The pioneer manufacturer of heaters & sensors
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Straight Coil Heater With J Type Thermocouple And Silicone Vanished Fiberglass Cable
1. Coil Heater Brief Introduction
Coil heaters are high performance mini tubular heaters that have small rectangular, square or round cross sections that are flexible and can acquire different shapes and configurations.
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.
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.
2. Coil Heater Characteristics
3. Coil Heater Parameter.
| Spring coil heater (H series) | 3.0x3.0 | Φ3.0 | Φ4.0 | Φ5.0 | 3.5x3.5 | 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 | |||||
| Tolerance ID d 20mm~30mm | Without inner sleeve:-0.20mm | |||||
| Tolerance ID d ≥30mm | Without inner sleeve:-0.25mm | |||||
| 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
This Heating Coil is widely applied for hot runner system, plastic industry, packaging machinery, medical
equipment, casting process,other electric heating industry, etc..