Coil Heater for Hot Runner Stainless Steel Sleeves

1. Brief Introduction

Coil Heater for Hot Runner, one kind of tubular electric heating elements, is made of nickel chrome resistance wire placed inside chrome nickel steel tube filled with MgO powder. This spring heater can produced into round section and different shapes.

2. Characteristics

• Coil style and wrap-up style electric heaters for hot runners
• Heating bars with temperature monitoring thermocouple attached.
• Specified thermocouples and RTDs for rubber, and plastic molding industries.

3.  Application

• Hot Runner Nozzles & Bushings.
• Hot runner Injection moulds
• Injection & Blow Moulding Machine Nozzles.
• PET prefrom & Thin wall container Moulds.
• Hot Runner Manifolds.

4.  Parameter.

Standard Configuration

Material :304

Unheated length(L1):45mm

Connector(cold side)(D1xU): Ф3.5x40mm

Power lines,grounding wire length(L):1000mm

Surface treatment:sandblasting;

• Sheath Material for Coil Heater: Cr Ni-Steel for Coil
• Insulation Material: MgO
• Resistance Wire: Ni Cr 80-20
• Maximum Sheath Temperature: 650°C
• Die Electrical Strength: 800v A/V
• Insulation: >5M W
• Thermocouple : J type (Standard) or K type
• Length Tolerance (Straight): + 5%
• Wattage Tolerance: + 10% (+ 5% Available Upon Request)
• Resistance Tolerance: + 10% (+ 5% Available Upon Request)
• Unheated Length: 35mm (Standard)
• Dimensional Tolerance: Coil I.D + 0.1 to 0.2mm
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5. Packing Information