The origin of single head electric heating tubes: (single head) or (bullet tube) electric heating tubes (Cartridge Heaters), in the Chinese electric heating industry, there is a long known model: M3. In the late 1990s, due to the widespread use of electric heating tubes in China, many shapes of electric heating tubes also appeared. In southern China, this type of electric heating tube used for molds with one head output was called a single head electric heating tube, which is very vivid. In foreign countries, it is called a bullet tube heater, which is also a visual term because the bullet tube shell is cylindrical and one end is blocked, which is a clever coincidence with China's single head electric heating tube.

Application scope of single head electric heating tube:

1. Mold heating has been widely accepted by customers in modern industrial applications.

2. In the plastic mechanical heating system.

3. Medical production line.

4. Laboratory heat treatment test.

5. In the field of chemical engineering, etc.

The benefits of single head electric heating tube:

1. Small diameter, can reach 3-25mm.

2. The length is not limited and can reach 20-2000mm.

3. High power can achieve a surface area of 20 watts per square centimeter, and even up to 60 watts per square centimeter in foreign countries.

Performance requirements for single head electric heating tubes:

1. Heating time

Under the test voltage, the time for the component to rise from the ambient temperature to the test temperature should not exceed 15 minutes

2. Rated power deviation

Under sufficient heating conditions, the deviation of the rated power of the component should not exceed the range specified below; For components with a rated power of 100W or less: ± 10%. For components with a rated power greater than 100W, the higher of+5% to -10% or 10W shall be taken.

3. Leakage current

The leakage current in cold state and after water pressure and sealing tests should not exceed 0.5mA

The thermal leakage current at working temperature should not exceed the calculated value in the formula, but not exceed 5mA

I=1/6 (tT × 0.00001)

I - Thermal leakage current mA

T-heating length mm

T-working temperature ℃

When multiple components are connected in series to the power supply, a leakage current test should be conducted on this group of components as a whole.

4. Insulation resistance

During factory inspection, the cold insulation resistance should not be less than 50M Ω

After the sealing test, the insulation resistance after long-term storage or use should not decrease to M Ω

The thermal insulation resistance at working temperature should not be lower than the calculated value in the formula, but the minimum should not be less than 1M Ω

R="(10-0.015T)/t" × 0.001

R - Thermal insulation resistance M Ω

T-heating length mm

T - Working temperature ℃

5. Insulation and voltage resistance strength

The component should be maintained for 1 minute under the specified test conditions and voltage without any flashover or breakdown phenomenon

6. Ability to withstand power on and off

The component should be able to withstand 2000 power on/off tests under the specified test conditions without damage

7. Overload capacity

The component should withstand 30 cycles of overload test under specified test conditions and input power without damage

8. Heat resistance

The component should withstand 1000 cycles of heat resistance test under the specified test conditions and voltage without damage

(This product can be customized according to customer requirements, providing drawings, voltage, power, and dimensions)

Made of high-quality stainless steel, modified protactinium oxide powder, high resistance electric heating alloy wire, stainless steel heat sink and other materials, and manufactured through advanced production equipment and processes, with strict quality management. This series of products can be installed in blowing ducts or other stationary, flowing air heating occasions. Fin type electric heating tubes are made by wrapping metal heat sinks around the surface of ordinary components, which increases the heat dissipation area by 2-3 times compared to ordinary components. In other words, the surface power load allowed by fin components is 3-4 times that of ordinary components. Due to the shortened length of the component, its own heat loss is reduced. Under the same power conditions, it has the advantages of fast heating, uniform heating, good heat dissipation performance, high thermal efficiency, long service life, small heating device volume, and low cost. Reasonable design has been carried out according to user requirements for easy installation. The product is widely used in industries such as mechanical manufacturing, automotive, textile, food, and home appliances, especially in the air conditioning curtain industry.

Process: The finned heating tube is composed of fins wrapped around the outer surface of the heating tube to dissipate heat.

Usage: Used for heating ovens and drying channels, usually with air as the heating medium.

Features: Good heat dissipation effect and high thermal efficiency.

(This product can be customized according to customer requirements, providing drawings, voltage, power, and dimensions)