Hot Runner Spring Coil Brass Sleeve Heater with Thermocouple

Hot Runner Spring Coil Heater is a high-performance heating element designed for hot runner nozzles, injection molding machines and precision plastic injection molds. The spring coil structure with brass sleeve provides fast heat transfer, uniform heating and stable temperature control for demanding molding applications.

The heater is commonly used with built-in J/K type thermocouples for real-time temperature monitoring. Inner diameter, heating length, voltage, power and lead wire options can be customized according to customer drawings and nozzle requirements.

Hot Runner Spring Coil Heater Features

• Spring coil heating structure for flexible hot runner nozzle fitting
• H62 brass sleeve design for improved thermal conductivity and heat transfer efficiency
• Fast heating response and uniform temperature distribution
• Maximum sheath temperature up to 700°C
• Built-in J-type standard and K-type thermocouple optional
• Suitable for hot runner nozzle heating systems and injection molding applications
• Custom inner diameter, heating length, voltage and power available
• OEM production according to drawings or samples

Technical Specifications

SKU	TZ-HR-COIL
Heating Wire	Ni-Cr 80/20 Nickel Chromium Alloy
Outer Sleeve Material	H62 Brass
Insulation Material	High Purity MgO Magnesium Oxide
Voltage	110V / 220V / 230V / 380V Customizable
Power Range	200W–3000W
Maximum Temperature	Up to 700°C
Inner Diameter	8mm–38mm
Heating Length	40mm–200mm
Thermocouple	J Type Standard / K Type Optional
Lead Wire	Glass Fiber Braided Cable, Standard 1000mm

Hot Runner Nozzle Heating Applications

The Hot Runner Spring Coil Heater is mainly designed for hot runner nozzle systems where accurate temperature control, fast heat transfer and long-term production stability are required.

• Hot runner injection molding systems
• Plastic injection molds
• PET preform molding
• Automotive plastic parts production
• Medical plastic component molding
• Packaging plastic processing
• Precision injection molding applications

Stock and Custom Options

This product has no fixed stock sizes. Each Hot Runner Spring Coil Heater is manufactured according to customer nozzle dimensions, heating requirements and technical drawings.

Inner Diameter	Heating Length	Voltage
16mm	60mm	220V
20mm	80mm	220V
25mm	100mm	220V

How to Select the Right Hot Runner Spring Coil Heater

Selecting the correct Hot Runner Spring Coil Heater depends on several important factors, including nozzle diameter, available installation space, heating length, required power, working temperature, voltage and thermocouple requirements.

For high-precision hot runner applications, the heater should be matched according to the nozzle size and required thermal performance to achieve stable temperature control and consistent molding quality.

When selecting a coil heater, consider:

• Nozzle diameter: determines the heater inner diameter and fitting accuracy
• Heating length: affects heating coverage and temperature distribution
• Power requirement: determines heating speed and thermal output
• Thermocouple option: provides accurate temperature feedback and control
• Lead wire configuration: selected according to installation environment

Coil Heater Series

The Hot Runner Spring Coil Heater is one of the coil heater solutions available from EaseWise. Different structures are designed for different installation conditions, contact requirements and heating performance.

•  

  Round Coil Heater

   

  – flexible cylindrical heating solution for hot runner nozzles and general coil heating applications.

•  

  Square Coil Heater

   

  – provides larger contact area and higher allowable watt density for continuous-production injection molding.

•  

  Flat Rectangular Coil Heater

   

  – suitable for narrow installation spaces requiring efficient heat transfer.

•  

  Micro Mini Coil Heater

   

  – compact heating solution for miniature hot runner systems and precision components.

•  

  Pressed-in Brass Coil Heater

   

  – rigid close-contact heating assembly for precision molds requiring repeatable thermal performance.

Related Hot Runner Heating Information

For more information about hot runner heating solutions and coil heater selection, please visit our related resources:

•  

  Why Brass Sleeve Spring Coil Heater Fixes Hot Runner Nozzle Molding Defects

   

  – practical cases showing how brass sleeve coil heaters improve nozzle temperature stability.

•  

  Coil Heater Selection Guide

   

  – compare different coil heater structures, specifications and applications.

•  

  Round Coil Heater

   

  – learn about flexible coil heating solutions for cylindrical components.

Custom Hot Runner Spring Coil Heater

EaseWise provides OEM custom heating solutions for hot runner systems and injection molding applications.

Each heater can be manufactured according to customer drawings, samples or application requirements.

• Custom inner diameter
• Custom heating length
• Custom voltage and power
• Custom lead wire length
• Built-in J/K thermocouple options
• Custom brass sleeve dimensions
• OEM production according to drawings or samples

Send us your nozzle drawing, inner diameter, heating length, voltage, power and thermocouple requirements for a custom quotation.

 

Custom Hot Runner Spring Coil Brass Sleeve Heaters are available for injection molding, PET preform and precision hot runner applications.