Product Configuration
In modern refrigeration system, defrosting technology is one of the important links to ensure the efficient operation of equipment. Among them, electric defrosting is widely used in cold storage and refrigeration equipment because of its simple operation and remarkable effect. The core principle of this method is to use the double tubes defrost heater for evaporator to convert electrical energy into heat energy, which directly acts on the surface of the fin of the chiller. When the double tubes defrost heater element is turned on, the heat generated increases the temperature of the fin, which melts the frost layer attached to it. As the frost layer gradually falls off, the heat transfer capacity of the equipment is restored to ensure the normal operation of the refrigeration system.
The advantage of the electric defrosting method is that its structural design is simple and clear, and the double tubes defrost heater is easy to install and maintain. This characteristic makes it the preferred solution for many industrial and commercial refrigeration scenarios. For cold storage or refrigeration system, evaporator double tubes defrost heater is one of the core components, and its performance directly affects the operating efficiency of the whole system. In order to prevent finned frost from damaging the equipment, these heating elements need to be able to respond quickly and provide enough heat to completely melt the frost layer.
However, in practical applications, reasonable control of heating time and temperature is equally important. If the heating time is too long or the temperature is too high, it may cause deformation or other forms of damage to the fin material; If the heating is insufficient, the frost layer cannot be completely removed, which affects the heat transfer efficiency of the equipment. Therefore, it is particularly important to precisely adjust the starting frequency and heating intensity of the direct heating defroster heater.
Product Paramenters
| Porduct Name | Straight Double Tubes Defrost Heater for Static Evaporator |
| Humidity State Insulation Resistance | ≥200MΩ |
| After Humid Heat Test Insulation Resistance | ≥30MΩ |
| Humidity State Leakage Current | ≤0.1mA |
| Surface Load | ≤3.5W/cm2 |
| Tube diameter | 6.5mm,8.0mm,10.7mm,etc. |
| Shape | straight,U shape,W shape,etc. |
| Resistant voltage in water | 2,000V/min (normal water temperature) |
| Insulated resistance in water | 750MOhm |
| Use | Defrost Heater Element |
| Tube length | 300-7500mm |
| Lead wire length | 700-1000mm (custom) |
| Approvals | CE/ CQC |
| Company | Manufacturer/supplier/factory |
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The double tubes defrost heater is used for the air cooler defrosting,picture shape of defrost heater tube is A-A type (double straight tube ),tube length custom is following your air-cooler size,our all defrost heater can be customized as required. The evaporator double tubes defrost heater tube diameter can be made 6.5mm or 8.0mm,the tube with lead wire part will be sealed by rubber head.And the shape can also be made U shape and L shape.Power of defrost heating tube will be produced 300-400W per meter. |
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Defrost Heater for Air-cooler Model
Product Features
Effective management of temperature and frost
*** To guarantee refrigeration efficiency, the double tubes defrost heater rapidly melts the coating of ice on the chiller's evaporator or condenser surface. It works well in temperatures between -30°C and 50°C.
*** Accurately match the defrosting cycle, support segmented heating (e.g., 1000W–1200W power range), and heat up to 400°C per hour.
Durability and safety
*** Stainless steel shell that is resistant to corrosion, mechanical impact, and has a life of up to 4500 hours;
*** Insulation that is resistant to leaks and has a resistance of at least 60MΩ, which helps to prevent electrical hazards in humid environments.
Flexible adaptation
*** The manufacturer of double tubes defrost heater allows for non-standard customization (e.g., pipe diameter 8.0mm, length 1.3m), making it appropriate for complex structures like evaporator fins and chiller chassis;
*** Compatible with 220V/380V voltage, making it appropriate for cold chain transport equipment, commercial cold storage, and residential refrigerators.
Product Application
1. Home refrigerator/freezer :
*** Integrated in the bottom of the direct-cooling refrigerator evaporator or the return air duct of the air-cooled refrigerator, the double tubes defrost heaters suitable for 220V voltage (power 35W~150W), to prevent the evaporator from freezing resulting in reduced refrigeration efficiency .
*** The refrigerator defrost heater support customized models to match mainstream refrigerator brands.
2. Commercial Cold storage and cold chain equipment :
The double tubes defrost heater used for chillers, quick-freezing tunnels and other scenarios, the corrosion resistant titanium material or 304 stainless steel pipe, suitable for high humidity and low temperature environment .
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
