24V 200W Cartridge Heater in 250mm Length With Internal Lead Wire​

Description:

Cartridge heater is a piece of heating elements made of MgO powder or MgO tube, ceramic cap, resistance wire(NiCr20/80). It is used to heat in plastic injection moulds, dies, platens ….

Cartridge heaters are most frequently used for heating metal parts by insertion into drilled holes. For easy installation, the heaters are made slightly undersize relative to their nominal diameter. ​

STANDARD CARTRIDGE HEATERS

Nichrome wire heating coils are inserted in holes formed in ceramic tubes. Pure magnesium oxide filler is vibrated into the holes housing the heating coils to allow maximum heat transfer to the stainless steel sheath. The heater then has a heliarc welded end cap inserted on the bottom of the heater and insulated leads are installed.

SWAGED CARTRIDGE HEATERS

Nichrome wire is wound around a ceramic core which situates it in close proximity to the heater sheath. Pure magnesium oxide (MGO) is then vibrated in and the heater is swaged to a specific diameter. This compresses the MGO so it becomes an improved conductor of heat from the wire while maintaining its dielectric properties. This improves the heat transfer rate and allows for higher watt densities to be used on swaged cartridge heaters. Swaged heaters can operate at higher temperature and vibration applications with trouble free service.

Technical Details

1. Inside magnesium oxide insulation material: 99.99% high purity magnesium oxide

2. Heating element: high durance and high temperature NiCr2080 heating elements from Germany

3. TC material: High quality TC elements to ensure ±5 ℃tolerance

4. Max working temperature: 400℃

5. High voltage stability test:

6. Less than 0.5mA leak under 1000V for 30 seconds

7. OD range: 3mm-32mm

8. The range of the Total Length: 25mm----2500mm

9. Maximum power density: 40w/cm²

10. Unheated zone: 10mm at lead end and about 5mm at bottom

11. Lead options:

A: Solid Nickel Pin: wire 300℃ or 500℃

B: Swaged in wire: 500℃ wire coming from inside

Applications:

Cartridge heaters are found useful in many applications,[4] such as:

Seal Bars
Torpedo Heaters for injection molding
Injection molding manifolds
Mass Spectrometry
Rubber molding
Food production
Immersion Tank heating
HVAC Compressors
Fuel Cells
Semiconductors
Medical Devices
Sensor measurement devices
Extrusion
Die Casting
Hot melt adhesives
Heat Staking / Hole Punch
Plastic welding
Fluid heating