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Hot Runner Coil Heater
Coil heater is one kind of tubular electric heating elements. These components are mainly used in aerospace, petrochemical, rubber and plastics industries, and the like, it can be used to heat still or flowing air, water, oil,nitrate, alkali and other kinds of liquid. It can also be used to melt light metal or to heat metal moulds. It has advantages such as simple structure, long heat lifetime, high thermal efficiency, reliable and safe operation and so on.
Standard Specifications and Tolerances of Coil Heater:
Electrical Dimensional
Resistance Tolerance: ±10% Standard Square Cable: 0.125", 0.134" square
Wattage Tolerance: ±10% Standard Rectangular Cable: 0.110" × 0.160"
Maximun Amperage: 20 Amps Standard Round Cable Diameters: 0.115", 0.120", 0.125"
Standard Voltage: 120 or 240 Volts 0.132", 0.153", 0.163"
Cable Diameter Tolerance: ±0.005
Standard Potting Adapter: 5/16" Diameter, 1/2" Diameter
Standard Coil I.D: 3/8"—2-1/2"
Coil I.D. Tolerance: 3/8" to 3/4": +0.000", -0.020"
7/8" to 1-1/4": +0.000", -0.030"
1-1/2" to 2-1/2": +0.000", -0.060"
Coil Width (length): Up to 12" on 3/8" to 3/4" I.D.
Up to 16" on 7/8" to 1-1/4" I.D.
Up to 18" on 1-1/2" to 2-1/2"
Coil Width Tolerance: 0"—6": +0, -1/8"
6"—12": +1/8", -1/4"
12"—18": ±1/4"
Higher or lower voltages and other dimensions aplicable for specific heater designs; consult Laier with your requirements.
Design Features:
1. High temperatures resistance 2. Unheated straight section
3. Precise temperature control 4. Fast response
5. Choice of lead orientation 6. Choice of lead protection
7. Longer heat lifetime 8. Round, square and rectangular cable
9. High watt densities 10. Rugged, durable construction
11. Available with built-in thermocouple 12. Made to customers' requirements
Typical Applications:
1. Injection moulding machine nozzle 2. Hot runner nozzles & Bushings
3. Packaging machineries 4. Hot runner injection moulds
5. Injection & Blow moulding machine nozzles 6. Hot runner manifolds
Product Photos of Coil Heaters:
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