Product Configuration
Walk in freezer door heater wire is a special low-temperature heating element for the door frame of refrigeration equipment (refrigerators / freezers / cold storage rooms). The door heater wire’s core function is to continuously generate low-power heat to form a constant-temperature anti-condensation, anti-freezing and anti-snow layer in the door frame / door seal area, solving the problems of condensation, freezing and door seal adhesion caused by the large temperature difference between the inside and outside of the equipment. At the same time, the door heater wire protects the door structure and ensures the sealing performance of the equipment. It is a basic protective accessory for refrigeration equipment.
The wali in freezer door heater wire is designed for the temperature difference scenarios of its compatible refrigeration equipment: the internal temperature of the refrigerator / freezer can be as low as -40℃ to 0℃, while the external environment (especially in summer and humid areas in the south) can reach 25℃ to 38℃, with high air humidity. The door frame area where cold and hot air meet is prone to condensation and icing. The door frame heating wire is precisely designed to address this issue. It has a low power (several watts to tens of watts), constant temperature heating, and extremely low energy consumption. The door frame heater wire is a "low-consumption protective accessory" for the equipment.
Product Paramenters
| Porduct Name | Walk in Freezer Door Heater Wire for Cold Room |
| Insulation Material | Silicone rubber |
| Wire diameter | 2.5mm,3.0mm,4.0mm,etc. |
| Heating length | customized |
| Lead wire length | 1000mm,or custom |
| Color | white,grey,red,blue,etc. |
| MOQ | 100pcs |
| Resistant voltage in water | 2,000V/min (normal water temperature) |
| Insulated resistance in water | 750MOhm |
| Use | defrost door frame heating wire |
| Certification | CE |
| Package | one heater with one bag |
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The walk in freezer door heater wire length,voltage and power can be customized as required.The wire diameter can be choosed 2.5mm,3.0mm,3.5mm,and 4.0mm.The wire surface can be braided firberglass,aluminum or stainless steel. The defrost wire heater heating part with lead wire connector can be seal with rubber head or double-wall shrinkable tube,you can choose according to your own use needs. |
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Fiberglass braid
Stainless/Aluminum Braid
PVC Heater Wire
Silicone Heating Wire
Product Function
1. Anti-condensation: Prevent water droplets from forming on the door frame and water seepage
This is the most fundamental core function of walk in freezer door heater wire. When there is a large temperature difference between the inside and outside of the refrigeration equipment, combined with a high humidity environment, water vapor in the air will condense into water droplets on the cold metal/plastic surface of the door frame and drip onto the ground, which can easily cause water accumulation and slipping. If it seeps into the equipment interior, it will corrode the circuits and damage the electrical control components. The door frame heater wire heating cable continuously heats the surface of the door frame and the door seal (rubber material), raising the temperature to 2-5°C above the environmental dew point temperature. This prevents water vapor from condensing at its source and keeps the door frame dry.
2. Anti-freezing / Frosting: Prevent the door seal from sticking to the door frame
When the internal temperature of the equipment is extremely low (such as in a freezer or cold storage, with a temperature of ≤ -18°C), the door frame and the door seal (rubber material) are prone to freezing and frosting due to the low temperature, causing the door seal to freeze and stick to the door frame - when opening the door, it requires forceful pulling, which is not only laborious but also can tear the door seal and even damage the door hinge; long-term freezing will fill the door frame gap with frost layers, damaging the seal. The walk in freezer door heater wire heating line continuously heats the area of the door frame and the door seal, maintaining the temperature in this area above 0°C, completely avoiding freezing and frosting, and ensuring smooth door opening.
The compatibility characteristics of different devices
1. Household refrigerator / Small freezer
--- Heating wire: Mostly ultra-thin flexible silicone rubber wire heater, adhering to the inner side of the door frame / door seal groove. The power is extremely low (3~15W), linked with the equipment's electrical control system. It automatically starts when the environmental humidity is high, and goes into sleep mode when the humidity is low, achieving greater energy savings.
--- Core requirement: the door heater wire mainly to prevent condensation， while also providing slight anti-freezing protection (for the freezer door frame).
2. Commercial Refrigerators (Supermarket Display Cabinets, Vertical Freezer Cabinets)
--- Heating Wire: A temperature-resistant and wear-resistant silicone rubber heating wire with a slightly higher power (10-30W). It operates at a low power continuously, suitable for scenarios with high humidity and frequent door openings in commercial settings.
--- Core Requirements: Anti-condensation + Anti-freezing, to prevent the sealing strip from sticking together when the door is opened, ensuring smooth access for customers.
3. Industrial Cold Storage (Low Temperature Cold Storage / Ultra-Low Temperature Cold Storage)
--- Heating Wire: aluminum/ stainless steel braid or silicone rubber heating lines that are resistant to low temperatures and aging. They are usually wrapped around the door frame in a continuous loop. The power of door heater wire is adjusted according to the size of the cold storage (20~100W). The defrost door heater supports temperature control by a thermostat and is suitable for ultra-low temperature environments ranging from -40℃ to 0℃.
--- Core Requirements: The main purpose is to prevent freezing, while also preventing condensation. The defrost heating wire is necessary to avoid the thick insulation door of the cold storage from being unable to open due to freezing, and at the same time protect the large sealing rubber strips of the cold storage door.
Factory Picture
Production Process
Service
Develop
received the products specs,drawing,and picture
Quotes
the manager feedback the inquiry in 1-2hours and send quotation
Samples
Free samples will be sent for check products quality before bluk production
Production
confirm products specification again,then arrange the production
Order
Place order once you confirmed samples
Testing
Our QC team will be checked the products quality before delivery
Packing
packing products as required
Loading
Loading ready productsto client’s container
Receiving
Received you order
Why Choose Us
• 25 years exporting & 20 years manufacturing experience
• Factory covers an area of about 8000m²
• In 2021，all kinds of advanced production equipment had been replaced, including powder filling machine, pipe shrinking machine, pipe bending equipment, etc.,
• the average daily output is about 15000pcs
• Different Cooperative customer
• Customization depend on your requirement
Certificate
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Factory Picture
Before the inquiry,pls send us below specs:
1. Sending us the drawing or real picture;
2. Heater size,power and voltage;
3. Any special requirements of heater.
Contacts: Amiee Zhang
Email: info@benoelectric.com
Wechat: +86 15268490327
WhatsApp: +86 15268490327
Skype: amiee19940314
