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Silicone rubber heater
Industrial Silicone Heating Blanket
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a)Etched Foil Silicone Rubber Heaters
The etched element provides superior heat transfer and exceptionally uniform heat output, which results in a faster warm-up cycle and longer life. The heaters operate in ambient temperatures from -80°F to 500°F.
Advantages over wire wound silicone rubber heaters:
- Higher watt densities
- Distributed wattages
- Elimination of edge loss compensation
- Greater element area over heater sheath
- Complex heat distribution with a rating of about 200°C (392°F)
- Economical mass production
- Reproduction of complex circuits
b)Wire Wound Silicone Rubber Heaters
The excellent dielectric properties of silicone rubber and the strength of fiberglass combine to produce a unique heater. First, fine nickel-chromium alloy wire is spiraled onto a center core of fiberglass twine, producing a strong, flexible heating element. Electronically-controlled precision winding equipment ensures consistency.
Circuits are then hand-wound on permanent tooling providing repeatability of resistance and pattern. Parallel circuits are utilized where possible, permitting continued operation should a single circuit be damaged.
When the heating element is positioned, a second layer of silicone rubber is laid over the wire. The layers are then vulcanized to permanently position the circuits.
Using these versatile and flexible heaters, the ability to apply heat exactly where required is limited only by imagination — and a maximum continuous operating temperature of about 200°C
Main applications:
1) Thermal transfer equipment;
2) Prevent condensation in motors or instrument cabinets;
3) Freeze or condensation prevention in housings containing electronic equipment, for examples: traffic signal boxes, automatic teller machines, temperature control panels, gas or liquid control valve housings
4) Composite bonding processes
5) Airplane engine heaters and aerospace industry
6) Drums and other vessels and viscosity control and asphalt storage
7) Medical equipment such as blood analyzers, medical respirators, test tube heaters, etc.
8) Curing of plastic laminates
9) Computer peripherals such as laser printers, duplicating machines
Dual Voltage, Zoning and Three Phase
Due to the flexibility in circuit design of silicone rubber heaters, multiple heating circuits can be designed to accommodate dual voltage and multiple zones. On dual voltage heaters, three leads, including a common in a different color, are provided for wiring the heater in series for the higher voltage and parallel for the lower voltage. 120/240 Vac or 240/480 Vac can be achieved. Multiple circuit areas can be zoned to achieve different heating effects. Three-phase circuits can also be designed for high current applications.
Water-proof
We have developed leak tight silicone rubber heaters which can be permanently immersed into water. This is very useful for high humidity environment or fluid heating where conventional immersion heaters can't be used due to space or mounting limit. The applicable fluid includes some corrosive chemical solution. For example, our silicone rubber heaters have been used for SCR (Selective Catalytic Reduction) tank Adblue heating for exhaust gas control of diesel vehicles. Please consult us for chemical compatibility if you have similar demand. And our silicone rubber heaters paIP68 and passed it
Features & Benefits:
Features | Benefits |
Designed to the exact shape and size needed | · Conforms to your component and/or equipment |
More than 80 designs available immediately from stock | · Reduces downtime |
Constructed with wire-wound or etched foil elements | · Delivers a thin, lightweight heater · Provides the desired flexibility for many dynamic applications · Delivers low mass and easily repeatable distributed watt densities |
Moisture and chemical-resistant silicone rubber material | · Provides longer heater life |
Vulcanizing adhesives or fasteners | · Allows heaters to be easily bonded to the part |
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