Silicone rubber heating coils are flexible, sheet-like heating elements made by wrapping a metal heating wire (usually nickel-chromium alloy or iron-chromium-aluminum alloy) between two layers of high-temperature resistant silicone rubber through a high-temperature vulcanization process. Designed in a cylindrical shape (ring), they can be easily wrapped around the surface of cylindrical objects requiring heating, such as pipes, barrels, cans, and rollers, and secured using clamping devices (such as buckles, Velcro, or springs).
Jaye Heater Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of silicone rubber heating coil in China, also supports custom service. Welcome to wholesale high quality silicone rubber heating coil at competitive price from our factory.
The core structure of a silicone rubber heating coil includes a heating layer: an inner metal resistance wire that generates heat when energized. It also includes an insulation layer: high-quality silicone rubber with excellent insulation, thermal conductivity, and flexibility. An outer protective layer: the outermost layer of silicone rubber, typically reinforced with fiberglass cloth for increased mechanical strength. Additional accessories include a temperature sensing element (thermocouple/thermistor), power leads, insulation, and a mounting device.

Compared to traditional metal heating coils (such as cast aluminum and ceramic heating coils), silicone rubber heating coils offer the following significant advantages:

| Peak Temperature | Up to 300°C (short-term) |
| Insulation Resistance | ≥100 MΩ at 500VDC |
| Dielectric Strength | 1500–4000 VAC, 1 minute |
| Lead Wire | High-temp silicone rubber wire, custom length |
| Standard Color | Gray, red, black |

Q1: How do I determine the required wattage?
A: Based on target temperature, mass of object, specific heat, heat-up time, and ambient losses. Provide these details to the supplier for engineering support.
Q2: Is it waterproof or oil-resistant?
A: Standard heaters are moisture and oil-splash resistant (IP54). For full immersion, request a sealed design (IP67/IP68) with sealed leads and edges.
Q3: Can it be used outdoors or in harsh industrial environments?
A: Yes, silicone rubber is UV, ozone, and chemically resistant. For extreme conditions, additional protective covers or specific material grades are recommended.
Q4: Is a temperature controller necessary?
A: Yes, strongly recommended. Without a controller (PID + SSR/contactor), the heater will continuously overheat, risking damage or fire.
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