Hot Runner Heater Coil Heaters For Plastic Molding Machine
1. Coil Heater Working Principle
Flat
coil heater are designed to the standard with respect to precise fit and profiling to optimize the performance of nozzles and other mating components.
They accommodate type "J" or "K" type thermocouple that could be placed internally at the tip or the middle of a heater.
They can be made as well to have profiled or distributed wattage configuration.
2 . Advantages
1. Standard sizes available with various cross section
2. Precision fit on Hot Runner Nozzles
3. Various Watt Density option available
4. Highly Non-corrosive
5. Designed for even heat profile
6. Maximum heat transfer due to more contact area
3. Coil Heater Parameter
Section area
|
3.0 x 3.0, 3.30 x 3.30, 3.5 x 3.5, 4 x 4, 4.20 x 2.20, 4.20 x 2.50
|
Sheath Material
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Cr Ni-Steel, SS304, SS310
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Insulation Material
|
High Pure MgO
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Heating coil ID
|
10mm-38mm
|
Voltage
|
12-380V
|
Wattage
|
70W-3000W
|
Build-in thermocouple power
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With or without J/K thermocouple
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Available sheath
|
nylon,metal braided,fiberglass ,silicone rubber, kevlar
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Sheath's color
|
standard is black,other color is also available
|
Resistance Wire
|
Ni Cr 80-20
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Maximum Sheath Temperature
|
700°C
|
Die Electrical Strength
|
800V A/C
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Insulation
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>5 M W
|
Thermocouple
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J type (Standard) or K type
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Length Tolerance (Straight)
|
5%
|
Wattage Tolerance
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+ 10% (+ 5% Available Upon Request)
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Resistance Tolerance
|
+ 10% (+ 5% Available Upon Request)
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Unheated Length
|
35mm (Standard)
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Dimensional Tolerance
|
Coil I.D + 0.1 to 0.2mm
|
Coil Length + 1mm
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4. Coil Heater Imported Raw Materials
a. The coil heater resistance is used German Nickel Chrome wire, can be coiled and straight.
b. The insulation material magnesium oxide powder is imported from USA; which ensures the high performance, fast response time and good unformity.
5.
Coiling Option:
Cylindrical Flat Coiling Conical coiling
Exit Options:
Tangential Axial Radial
6. Termination:
Plain leads with high temperature sleeve
High temperature lead wire with a fiberglass jacket exiting from a transition bracket, which sealed with high temperature cement.
Stainless steel braided
The stainless steel braid, provides abrasion resistance and maintains high flexibility.
7. Photos for reference