1.8mm Mini Coil Heaters With Leads For Hot Runner System

1. Coil Heater Brief Introduction

Coil and cable heaters are made by placing a pair of tiny coils or two lines of straight resistance wire inside a very dense MgO medium. This core is then inserted into a stainless steel shell. These high-performance heating cells can acquire temperatures of up to 1500° F.

A Coil Spring Heater in its unformed straight stage can have a maximum length of 6ft and its cross-section can be square or rectangular, while a cable heater can be 300ft long and is available in round cross sections. Thermocouple sensors could be installed internally at the tip or the middle of a heater.

Cable heaters could be coiled, to form coil heaters that are ideal whenever a large amount of heat is required in a confined space. Coil heaters have many applications but are mostly utilized as powerful heating cells inside hot runner nozzles in plastic injection molding.

Coil and cable heaters can accommodate "J" type or "K" type thermocouple sensors 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.

The sheath material of standard cable heaters is stainless 304; their heating core is coiled or straight solid Nickel Chrome wire. Cable heaters can transmit up to 35 W/in2 heating capacity and can attain up to 15000F surface temperature.

2. Coil Heater Characteristics

• Standard sizes available with various cross section
• Various Watt Density option available
• Designed for even heat profile
• Precision fit on Hot Runner Nozzles
• Highly Non-corrosive
• Choice of Terminal Exits
• Advanced Thermal Engineering
• Available with in built Thermocouple

3. Coil Heater Parameter.

• heater	2.2x1.5 2.4x1.6	Φ1.8 Φ2.0 Φ2.5
  Voltage	220V (standard) ,230V,240V (optional )
  Power tolerance 160W-200W	+/-10%
  Power tolerance 201W-2000W	+5%-10%
  Unheating length standard length	45mm
  Max power density	9W/cm²
  Heating Length tolerance	+/-2.5%
  Unheating length tolerance	+/-2.5%
  Tolerance cross section	+/-0.10mm	+/-0.15mm
  Thermocouple	NONE
  Material	304,321,316
  Maximum working temperature	650℃
  Die electrical strength	600V

4. Spring Coil Heater Application

1. Applications for Coil Spring Heater
2. Hot runner nozzles
3. Cutting & sealing bars
4. Medical equipment
5. Rod, pipe & tube heating
6. Heat tracing
7. Semiconductor manufacturing