The finned tube is to improve the heat exchange efficiency. By adding fins on the surface of the heat exchange tube, the outer surface area (or inner surface area) of the heat exchange tube is increased, so as to achieve the purpose of improving the heat exchange efficiency. Such a heat exchange tube . Usually used for heat exchange between liquid and gas.
Finned tube is a heat exchange element. As a heat exchange element, finned tubes usually work under high-temperature flue gas conditions for a long time. For example, the finned tubes usually used in boiler or harsh environments, high temperature and high pressure, and in a corrosive atmosphere. This requires that the finned tubes should have high anti-corrosion properties, Anti-wear properties, lower contact resistance, higher Stability and anti-dusting ability.
There are many types of finned tubes, and new varieties are constantly emerging. According to the classification of processing technology, there are extruded fin tube; high frequency welded finned tubes; rolled formed finned tubes; suit formed finned tubes ; cast finned tubes; tension wound finned tubes; Inserted tubes.
According to the shape of the fins, there are square finned tubes; circular finned tubes; spiral finned tubes; longitudinal finned tubes; corrugated finned tubes; spiral serrated fins Helical Serrated Finned Tubes; pin-shaped finned tubes; integral plate-shaped finned tubes; inner finned tubes.
According to whether the fin material of the finned tube is the same as that of the base tube, it can be divided into: single metal finned tube, bimetallic composite finned tube.
Single metal finned tubes are classified by material into copper finned tubes; aluminum finned tubes; carbon steel finned tubes; stainless steel finned tubes; cast steel finned tubes.
Finned Tube,Extruded Fin,Brown Fin Tube,Longitudinal Finned Tube Guangdong Jiema Energy Saving Technology Co.,Ltd , https://www.jmheatexchanger.com
Linear Actuator Solenoid
HB-DJ808 is a high-performance gear-driven electric linear actuator designed for precise and powerful motion control. It is ideal for applications requiring automated pushing or pulling actions, especially in harsh environments. The actuator features a waterproof and dustproof design, a robust structure, and an extensive operating temperature range from -40°C to +65°C. With a maximum load capacity of 7,000 N, it is suitable for industrial equipment, special vehicles, and highway systems where durability and reliability are essential.
Equipped with built-in limit switches, temperature protection, and an overload clutch, the HB-DJ808 ensures long service life with minimal maintenance. Optional potentiometer feedback allows for accurate position control, making it a versatile choice for various automation needs.
Key Features:
1. DC permanent magnet motor with durable construction
2. Adjustable speed range: 5–35 mm/s
3. Stroke options: 50–600 mm (customizable)
4. Maximum load capacity: 7,000 N
5. Operating temperature: -40°C to +65°C
6. Duty cycle: 25% at full load under normal conditions
7. IP65 rating for protection against water and dust
8. CE and ISO9001 certified
9. Overload clutch and internal limit switches
10. Widely used in industrial, medical, and automotive applications
Packaging & Delivery:
Each carton contains 2 units. Delivery typically takes 10 days after payment. Fast shipping options include DHL, TNT, UPS, FEDEX, and sea freight. You can choose your preferred shipping method, and we provide full tracking throughout the delivery process.
Sample Policy:
We offer samples upon request. The buyer is responsible for the cost and freight charges. Sample delivery usually takes 7–10 business days.
About Us:
HB is a leading manufacturer specializing in electric linear actuators, control boxes, and handheld controllers. Our products are widely used in medical devices, industrial machinery, home appliances, and office equipment, including electric sofas, massage chairs, and dental chairs. We prioritize quality control, customer satisfaction, and customization to meet your specific requirements. With our advanced technology and commitment to excellence, we deliver cost-effective and high-quality solutions tailored to your needs.
Technical Specifications:
| **Brand Name** | HB |
| **Model Number** | HB-DJ808 |
| **Input Voltage** | 12V / 24V / 36V / 48V DC |
| **Max Load** | 7000 N |
| **Duty Cycle** | 20% |
| **Speed** | 5–35 mm/s |
| **Stroke** | 100–600 mm (optional) |
| **Minimum Installation Dimension** | L(ACME)=250mm + S |
| **Operating Temperature** | -40°C to +65°C |
| **IP Class** | IP65 |
| **Limit Switch** | Internal |
| **Optional Parts** | Potentiometer feedback / Overload clutch protection |
| **Certifications** | CE, ISO9001 |
| **Material** | Stainless steel inner tube, aluminum alloy outer tube |
| **Color** | Black |
| **Origin** | Jiangsu, China |
Whether you're looking for reliable automation components or custom-designed solutions, HB provides top-quality electric linear actuators that meet the demands of modern industry. Contact us today to discuss your project and find the perfect fit for your application.