Coil Heater

Hot Runner Heaters are compacted for faster and efficient heat transfer. Generally the long 20-3000mm, spring heating ring external using high quality Ni-Cr steel tube, the internal use of high purity magnesium oxide, high temperature resistance wire. With high working temperature, fast heating, uniform heating precision, long service life, can be automatically controlled area, high thermal conduction, while internal heating material damage, external can be reuses. The heaters are annealed to acquire malleability for bending into any shape. Hot runner heaters with built in thermocouple are also available.

Specifications

1). Standard sizes available with various cross section
2). Various Watt Density options available.
3). Robust Design with Choice of Terminal Exits
4). Available with built in Thermocouple
5). Designed for even heat profile.
6). Precision fit on Hot Runner Nozzles & Manifolds.
7). Highly Non-corrosive.
8). Maximum heat transfer due to more contact area.
9). Advanced Thermal Engineering.

Applications

1). Injection & Blow moulding machine nozzle
2). Hot Runner Nozzles & Bushings.
3). Packaging machineries
4). Hot runner Injection moulds.
5). PET prefrom & Thin wall container Moulding
6). Hot runner Manifolds

Sheath Material Cr Ni-Steel
Insulation Material MgO
Resistance Wire NiCr 80-20
Thermocouple J-type; K-type
Max. Sheath Temperature 650°C
Die Electrical Strength 800V A/C
Insulation >5MW
Thermocouple J-type(standard); K-type
Length Tolerance(straight) 5%
Wattage Tolerance 5%
Resistance Tolerance 5%
Unheated Length 35mm(standrad)
Dimensional Tolerance Coil I.D + 0.1~0.2mm, Coil length +1mm
 
Material
Max.Operating Temperature
Max. Wattage Densities
°F
°C
W/in2
W/cm2
Stainless Steel 304
1200
650
30
4.6
Alloy 600
1200
650
30
4.6

Continuous operating temperatures to 1200°F (650°C) with intermittent operating periods achieving up 1500°F (815°C) dependent on the type of element wire used;
Sheath watt densities on the cable to 30 W/ in² (4.65W/ cm²), and as high as 75 W/ in² (11.62W/ cm²) subject to factory approval;
Maximum voltage to 240V

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