Coil Heater

coil heater product image

The heating element is the heart of hot runner systems, The nozzle heater must provide for thermally homogeneous melt. and heat losses must be kept to a minimum, it requires suitable design and material selection. If you are looking for a professional coil heaters supplier, you are in the right place. Hasteco is committed to producing nozzle heating elements for 20 years and enjoys a 36%share of the China market.

Spring coil heater

Coil Heater, Also known as cable heaters or hot runner drop heater, which are commonly used as external heaters for hot runner nozzles. These heatersare made in the form of tubular coil heaters with a round or rectangular cross-section. The most popular cross-section is 2.3mm*4.3mm, which has a greater contact area with the nozzle, therefore Thermodynamically is sufficient as heat transfer mainly occurs by conduction instead ofradiation.

spring coil heater

Pressed in brass coil heater

Due to thermal expansion, The top and bottom of the coil heater tend to lift from the nozzle body after long-term operation, Hasteco solve this problem by improve the way coil heater locates in a nozzle, That’s Pressed in Brass coil heater, which is widely used in high-end hot runner systems

Pressed in brass coil heater

Axial clamp coil heater

Axial clamp coil heaters are equipped with barrel mounting,which can prevent coil heater from the tendancy to lift off from nozzle body because of heat expansion. The Axial clamp coil heaters allow the front end loading without removing the bushing,it saves a lot downtime

Axial clamp coil heater

Kappa series coil heater

Hasteco Kappa series coil heaters is another design solution to solve the deformation of the coil heater,It and pressed in brass coil heaters are the most common method of locating heaters in a hot runner nozzle.

With this design, Coil heater is sandwiched between metal sleeves, and there are threads on one end of the outer sleeve.

Kappa series coil heater

Embedded in nozzle coil heater

Sometimes there is little cavity spacings left inside the micro injection mould, embedded in nozzle coil heaters is specifically designed to solve this problem. Coil heater is wound in a helical groove on the nozzle, thus  it does not take up any space inside mold.

embeded in nozzle coil heater

Frequently Asked Questions

The temperature of coil heaters can vary depending on a number of factors. In general, coil heaters are designed to operate at high temperatures, typically ranging from 200°C to 1200°C (392°F to 2192°F). However, some coil heaters may operate at even higher temperatures, depending on their intended use.

It’s important to note that coil heaters should always be used in accordance with our specifications and with appropriate safety precautions, as they can pose a fire hazard if used improperly.

Here’s the formula for calculating electricity consumption: Electricity consumption (kWh) = Power rating (kW) x Hours of use.

For example, using your 1500-watt heater for 6 hours daily, you can multiply the two variables to get your watt-hours. For example, 1500 watts multiplied by 6 hours equals 9000 watt-hours.

Around 10-30 years. The lifespan of heater coils can vary significantly depending on factors such as wave quality, usage, and maintenance. Generally, heater coils in home heating systems, such as electric baseboard heaters or forced-air systems, can last 10 to 20 years, sometimes even longer. However, the specific lifespan for your heater coils will depend on the particular unit and circumstances!

1) Turn off the power to the heat pump.
2) Remove debris and clear the area around the unit.
3) Gently vacuum the fins with a soft brush attachment.
4) Mix a mild detergent with water in a spray bottle.
5) Spray the coils with the cleaning solution.
6) Rinse the coils with low-pressure water.

Soak a clean cloth with acetone-based nail polish remover and place it over the dishwasher heating coils. Leave it for about five minutes to allow the acetone to dissolve the remaining plastic and plastic residue on the coils.

    • The range of profiles can be confusing at times, the options of height for coil heaters is important to ensure sufficient clearance of the net OD of the heater compared to the bore ID for nozzle performance
    • As a rule the wider a heater,the more watt density can be applied per linear inch. Narrower widths allow for higher precision of distributing wattage across the nozzle body
    • As manifold designs increasingly call for closer drops, the mini coil has emerged as a “small space claim” alternative to help designers meet objectives. Round coil heaters, the original nozzle heaters, are now primarily used for form in groove applications
  • effiency.

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