4mm 3D Printer Cartridge Heaters

3D Printer Cartridge Heater electric heater 

1. Working Principle

Electric cartridge heater, also known as single-end tubular heater, one end can heat, another end is cold end. It is made of a metal tube put into the resistance alloy wire as the heating materials, the alloy wire is filled with good insulation high purity magnesium oxide as filler, the product has a big power, high thermal efficiency, fast heat dissipation characteristics.

2. Characteristics

Long life use

Equalized heat distribution

diameter and length control precision

high temperature resistance

bending wire characteristics

Flexible wire (bending resistance )

3. Standard specifications of cartridge heater are as follows:

Technical tolerances:

Electric pipe diameter: +0 -0.05mm

Electric tube length: ± 0.3mm

Cold resistance: ± 5%

Standard wire length: (can be customized)

42.5mm, 880mm, 1250mm, 1280mm, 1500mm

Wire tolerances:

≤60mm  ±1.5mm

>1000mm ±10mm

4. Parameter

TECHNICAL DATA:
 
• Sheath material: stainless steel ss304/316/321 
• Heating resistance wire:Cr20Ni80 
• Working temperature: max 700°C 
• Diameter range (mm):2mm-30mm 

• Power density: 
1)  -heating in mold: 45w/cm2(max) 
2) -heating in water: 67w/cm2(max) 
3) -heating in static air: 10w/cm2(max) 
4)  -heating in flowing air: 18w/cm2(max)