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Industrial Pressed in Brass Coil Heater for Hot Runner System

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Address: No.42, Julong Avenue, Wuhan, Hubei, China

Contact name:Jessica

HT Elite Industry Co., Ltd

Industrial Pressed in Brass Coil Heater for Hot Runner System

Country/Region china
City & Province wuhan hubei

Product Details

Electric Coil Heater

 

1. Working Principle

Electric Coil heater, also known as cable heater, convert electricity into heat through the process of Joule heating. Electrical current running through the element encounters resistance, resulting in heating of the element.

 

2. Structure

The main features of these heaters are 360o heated area, readily confirms to surface, fast response and quick heat transfer, helical coil design for superior performance, good resistance to corrosion and it can easily be coupled with J or K type thermocouple. The integration of temperature thermocouple for the precise temperature control. It also provides the best combination of physical strength, high emissivity and good thermal conductivity to heat hot runner bushings and nozzles.

 

3. Imported Raw Materials

Chinese coil heater quality has highly confirmed by the woldwide market, can compete with the top class brands, such as Hotset, GC, EURO heat etc.. The coil heater resistance is used German Nickel Chrome wire, can be coiled and straight. The insulation material magnesium oxide powder is imported from USA; which ensures the high performance, fast response time and unformity.

 

4. Surface Treatment

Blasting and blackening surface treatment, also can provide bright surface.

 

5. Cross Section

Based on specific requirements and applications, coil heaters are manufactured in different cross sections. Each one is having its own advantages and disadvantages. Basically there are three types of coil heaters. They are

Coil Heater Cross Section
Round Coil Heater DiamaterΦ3.0, Φ4.0,Φ5.0
Square Coil Heater Diamater3.0x3.0, 3.3x3.3, 3.5x3.5, 4.0x4.0, 5.0x5.0
Rectangular Coil Heater Diamater4.0x2.0, 4.2x2.2, 4.5x2.7

 

Press in Brass Coil Heater:

Press in brass coil heater, the coil heater is designed to beset in the brass sheating, can eliminate known problems associated with the casting process.

 

The machined path in the brass for the heater enables exact repeatability of heat profile. By never exposing the coil heater to molten brass there are no risks of shifted heater coils, or destruction of the thermocouple junction.

 

Flexible design options include internal, external “wound in” or external slotted type J or type K thermocouples.

 

For OEM application, HT-Elite can customize the brass sheathing upon request.

 

Technical Parameter

 

Heater Sheath: CrNi Steel

High Voltage Stability: 800VAC

Insulation Resistance: >= 5M ohm at 500 VDC (Cold)

Wattage Tolerance: +/- 2%, +/- 4%, or +/-10%

Maximum Voltage: 230V

Leakage Current: <= 0.5 mA at 250VAC (Cold)

 

 

Advantage:

Has quick heat dissipation, high insulation, greatly extend the service life of heater

Can be built with a Micro, Mini, Flat, Low profile, or Round Nexthermal Coil Heater.

Safety in use

Faster responding heater due to eliminated air pockets than cast in brass

Profile and heater orientation precisely repeatable

Thermocouple not exposed to molten brass temperatures – Improved durability

Potential for designing thin walled brass heaters to minimize OD impact

Faster responding heater due to eliminated air pockets than cast in brass

 

Plain leads with high temperature sleeve

 

High temperature lead wire with a fiberglass jacket exiting from a transition bracket, which sealed with high temperature cement.

 

Stainless steel braided

The stainless steel braid, provides abrasion resistance and maintains high flexibility.

 

Application

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. PET prefrom & Thin wall container Moulds

7. Hot runner Manifolds.

 

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