Wuhan Global Metal Engineering Co., Ltd
Wuhan Global Metal Engineering Co., Ltd The pioneer manufacturer of heaters & sensors
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Coil Heater with Thermocouple and Sheathed with Stainless Steel Sleeves
1. Introduction
Hot Runner Coil Heaters are made of nickel chrome resistance wire placed inside stainless steel tube filled with MgO powder and compacted for faster and efficient heat transfer. The heaters are annealed to acquire malleability for bending into any shape.
Hot runner heaters with built in thermocouple are also available. Hot runner bushes are produced with hot runner heaters of different cross section with inner brass and outer stainless steel cover.
2. Characteristics
1) The inside insulated cover, same as the German GC.
2) Very good performance of the heating uniformity in the heating area.
3) High insulation (more than 500M ohm) and high pressure resistance (1000V above), can meet special requirement if customers need.
4)The moisture-proof is IP65.
3. 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 |
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| Tolerance ID d 20mm~30mm | Without inner sleeve:-0.20mm With inner sleeve:0.05mm~0.10mm |
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| Tolerance ID d ≥30mm | Without inner sleeve:-0.25mm With inner sleeve:0.05mm~0.10mm |
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| 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. Application
casting process
other electric heating industry
hot runner system
plastic industry
packaging machinery
medical equipment