- Heating Elements
- Cartridge Heater
- Tubular Heater
- Finned Air Heater
- Flange Immersion Heater
- Coil Heater
- Sealed Nozzle Heater
- Industrial Band Heater
- Cast In Heater
- Silicone Rubber Heater
- Flexible Ceramic Pad Heater
- Infrared Heaters
- IR Quartz Heating Lamp
- Infrared Quartz Heat Emitter
- Ceramic Infrared Heater
- Heater Accessory
- Thermocouple
- Ceramic Terminal Connector
- Silicone Rubber Plug
- Electric Cable
- Heating Alloy Wire
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.
Features
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.
Sheath Material |
Cr Ni-Steel | Thermocouple |
J-type(standard); K-type |
Insulation Material |
MgO | Length Tolerance(straight) |
5% |
Resistance Wire |
NiCr 80-20 | Wattage Tolerance |
5% |
Thermocouple |
J-type; K-type | Resistance Tolerance |
5% |
Max. Sheath Temperature |
650°C | Unheated Length |
35mm(standrad) |
Die Electrical Strength |
800V A/C | Dimensional Tolerance |
Coil I.D + 0.1~0.2mm |
Insulation |
>5MW | 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
High Ductility |
Allows the heater to be cold-formed into alomost any shape |
Low Mass |
Allows for quick response in both heating and cooling |
Constructed with no Open Seams |
Provides the capability of operating in unusual environment, including cryogenic and sub-freezing temperature, high vacuum, gaseous and liquid immersion heaters |
Decreases opportunity for corrosion | |
Constructed of Standrad Stainless Steel 304, Optional S.Steel 316 or Alloy 600 |
Provides high-temperature corrosion and oxidation resistance along with ideal expansion properties |
Heater Sheath Can be Brazed |
Allows the permanent attachment of mounted fitting to the heater, contact your Watlow representative |
Diameter Ranging 1.02~4.8mm |
Delivers a lot of heat into a tiny space |
Internal Construction Options |
Allows for internal thermocouples and no-heat sections (not available in all sizes) |
Application
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