With 20 years experience, Hongtai Alloy is your trusted source for quality 220v custom shape silicone heater pad for optical window as one of the leading suppliers of various heaters in China. Providing you with the most competitive price, we welcome you to buy the heater from our factory.
Product Description
Designed for tight-tolerance optical and instrumentation assemblies, this 220V Custom Shape Silicone Heater Pad For Optical Window combines flexible, fiberglass-reinforced silicone rubber insulation with precision die-cut viewing apertures. By framing the perimeter of optical glass, camera viewports, or laser sight windows without obstructing the line of sight, the heater delivers uniform perimeter conduction to prevent fogging, frosting, and thermal distortion. Available with molded vulcanized strain-relief blocks, coiled retractable lead wires, or integrated rotary thermostat controls, these thin-profile heating mats conform seamlessly to flat or gently curved surfaces for reliable thermal management.
Data Sheets
| Parameter | Specification |
| Model / Part Number | HT-SRH-220V-OPT-WIN |
| Operating Voltage | 220V AC (12V, 24V, 110V, 230V, 380V available upon request) |
| Power Rating | Custom engineered per surface area and thermal rise requirements |
| Wattage Tolerance | +5% / -10% (Per industrial standards) |
| Geometry & Cutouts | Custom irregular profiles, trapezoids, and precision interior window cutouts |
| Insulation Material | Fiberglass-reinforced high-temperature silicone rubber sheet |
| Heating Element Core | Precision etched-foil or fine-gauge wound NiCr resistance circuit |
| Standard Thickness | 1.5 mm – 1.8 mm (Ultra-thin profile for low thermal mass) |
| Continuous Operating Temp | Up to 200°C (392°F); intermittent peaks up to 230°C (446°F) |
| Lead Wire & Control Options | Coiled silicone leads, spade terminals, or inline adjustable dial thermostat |
| Mounting Method | High-temperature PSA (Pressure-Sensitive Adhesive) backing or mechanical clamping |
| Insulation Resistance | Cold insulation resistance ≥100MΩ at 500V DC |
| Dielectric Withstand |
1500V AC / 1 min (Cold state) |
Features
Precision Optical Aperture Cutouts: Custom-engineered interior cutouts and irregular outer geometries frame optical windows, lenses, and sensor ports cleanly without encroaching on the active viewing field.
Rapid & Uniform Perimeter Heating: Low thermal mass and precision circuit routing transfer heat directly into the window bezel or substrate, eliminating cold spots, condensation, and ice buildup.
Rugged Vulcanized Lead Protection: Equipped with molded silicone terminal blocks and optional coiled, stretchable lead wires that absorb mechanical movement and prevent conductor fatigue in dynamic assemblies.
Integrated Temperature Control Options: Configurable with built-in mechanical dial thermostats, bimetal thermal cutoffs, or embedded RTD/thermocouple sensors for closed-loop thermal stability.
Moisture & Chemical Resistance: Hermetically vulcanized silicone rubber construction resists humidity, ozone, mild chemicals, and oil mist in demanding outdoor or industrial environments.
Applications & Engineering Guidelines
Optical & Vision Systems: Prevents fogging and frost accumulation on outdoor surveillance housings, machine vision camera windows, lidar covers, and astronomical or scientific viewports.
Surface Preparation & Bonding: When installing with factory-applied PSA adhesive backing, thoroughly clean the metallic frame or substrate with isopropyl alcohol. Press firmly from the center outward to eliminate trapped air pockets that could cause localized hot spots.
Watt Density & Thermal Sink Matching: Select surface watt density according to the substrate material and ambient heat loss. Avoid energizing thin silicone pads in free air without contact with a heat-sinking surface unless specifically rated for unmounted operation.
Lead Routing & Strain Relief: Secure coiled or straight silicone leads with proper strain relief so external pulling forces are not transmitted directly to the vulcanized exit block.
Company profile
Yancheng Hongtai Alloy Electric Apparatus Co., Ltd. is a professional heating element manufacturer established in 2008, specializing in rod heaters, band heaters, and infrared heaters. The company employs 10 experienced engineers and uses advanced machinery from Taiwan, Japan, and Germany. It holds CE and ROHS certifications and adheres to ISO 9001 ,CQC,CE,ROHS certifications standards for quality control.
Main products : cartridge heater,Tubular heater, Flexible heater, Infrared heater,silicone heater ,thermocouple, heating element, and other heating products. The factory introduced advanced automatic control system and online quality,inspection system to ensure the stability and reliability of product quality.
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