1) High power density (heat area sufuce power 10~25w/cm2)
Working temperature≤450 degrees.
2) middle,low power density (heat area sufuce power 5~11/cm2)
working temperature≤ 300 degrees
Votage:12~250V (or as requirment)
High Density Construction High-quality stainless steel construction provides long-lasting protection even in the most rugged industrial environments
Protected with a stainless steel sheath, their watt density can reach 50 W/cm2 and their operating temperature can go up to 800°C.
The origin of Cartridge Heaters:
Cartridge Heaters is a kind of Electric heaters. In China's electric heating industry, there is a long-term name model: M3.
Electric heaters were widely used in the world in the 1990s. One of
them was called Cartridge Heaters because they were cylindrical and
blocked at one end, much like the cartridge case.
Application of Cartridge Heaters:
1, mold heating in modern industrial applications has been accepted by a wide range of customers.
2, in plastic machinery heating system.
3, the pharmaceutical production line.
4. Laboratory heat treatment test.
5, chemical industry and so on.
The advantages of Cartridge Heaters are:
1, small diameter, can achieve 3-25MM.
2, the length is not restricted, can achieve 20-2000MM.
High power, 2-5 times the power of the normal electric heat pipe, can
be achieved (surface area 20 watts / square centimeter), or even abroad
(surface area 60 watts / square centimeter).
The utility model has the advantages of simple structure, high
mechanical strength, high thermal efficiency, safety and reliability,
simple installation, long service life, non-pollution, low price, etc.
At the same time, it saves electric energy, and is safe in use, and can
be bent into various shapes, light and convenient in disassembly and
The construction of Cartridge Heaters:
typical structure of Cartridge Heaters (the most popular structure) is
the same as the electric heat pipe, and generally consists of five
parts: insulator, sealing material, lead rod, filler, electric wire,
metal sleeve, terminal.
The spiral electric wire and the lead-out band are located in the
center of the metal casing. The manufacturing process is that the spiral
electric wire is penetrated into the seamless steel pipe, copper pipe
or aluminum pipe, and the gap between them is filled with insulating and
heat-conducting oxidizing medium, such as crystalline magnesium oxide
powder (alumina or clean quartz sand, etc.) evenly through a multi-tube
Then the diameter of the pipe is reduced by the shrinking machine, so
that the oxide medium is dense (the density is above 3.3g/cm 3), so that
the electric heating wire is isolated from the air, and the central
position does not deviate from the pipe wall. So. The heat per unit area can be increased by more than ten times. The service life can also be increased to more than 10 years.
Cartridge Heaters can save 5% of the electrothermal materials and
achieve a thermal efficiency of more than 90% compared with the same
high-calorie electrothermal elements.
with the ordinary cartridge heater, the port does not use terminal
connection, so that it has a high temperature resistance and strong
mechanical performance, is suitable for embedded mold heating, vibration