Diameter 1.8mm Spring 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.

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.

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.

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