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Points to note when purchasing pencil heater element

Dec 07, 2020

Points to note when purchasing pencil heater element

The pencil heater element is a metal tube filled with a spiral heating wire (the heating wire is located in the center of the tube), and the heating wire and the metal sheath are tightly filled with a dense insulating and thermally conductive filler (high-purity magnesium oxide powder), The pipe mouth is sealed with sealing material, and the pipe end is led out with a conductive lead rod for wiring.

the pencil heater element is suitable for high and low-temperature insertion heating of various size molds and mechanical equipment, extrusion cylinders, forming molds, metal castings, rubber machinery, heating and heat preservation of laboratory equipment, bag making machines, edge banding machines, packaging machines, 3D printers, sealing machines, etc.

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Points to note when purchasing a pencil heater element:


1. Voltage and power

The voltage is based on the actual power supply voltage;

The power is determined according to the surface load and size. The general surface load is:

Domestic process: 5W/cm2;

Imported process A grade: 5W-12W/cm2;

AA grade imported technology: 12W-15W/cm2;

AAA grade imported technology: 15W-20W/cm2;


2. Heating medium: mold heating (embedded mold heating), bare air dry burning, liquid heating.

Note: Pay attention to the gap between the pipe diameter and the die hole when the mold is heated, usually the gap between the two is less than 0.2mm.


3. Dimensions

Pipe diameter, length, lead length, whether with fixed baffle, liquid heating pencil heater element, need to determine the size of threaded fasteners according to the pipe diameter.


4. Working temperature

Choose the single-head electric heating tube material according to the working temperature.


5. Purchase quantity

Single-head electric heating tubes are not quoted by the meter but are quoted comprehensively according to customized quantities.


6. Does it include tax?

The above are the points for attention when purchasing a pencil heater element. We welcome you to add any incompleteness.




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