Nozzle Heaters UK | Mica & Nozzle Band Heater Manufacturer

Manufactured in the UK, Soloheat’s custom mica nozzle heaters provide reliable, uniform heating for injection moulding and plastics processing equipment. Also known as nozzle band heaters, these compact heaters are designed to provide efficient heat transfer around machine nozzles and maintain consistent process temperatures when used with suitable temperature control.

Available in a wide range of diameters, widths, voltages and wattages, our bespoke mica nozzle heaters can be manufactured to customer drawings, existing samples or machine specifications, with a range of lead and termination options to suit both OEM and replacement applications.

Nozzle Heater Features

Need a nozzle heater quickly?

We stock a growing range of standard nozzle heaters available to purchase online with live pricing and fast UK dispatch.

✔ Standard diameters, widths & low-profile lead exits

✔ Popular wattages

✔ Fast UK dispatch

Browse our Online Nozzle Heater Store →

Soloheat mica nozzle heaters are designed for efficient heat transfer and reliable performance in industrial heating applications:

Manufactured in the UK to customer specifications
High-quality mica-insulated construction
Stainless steel outer sheath
Uniform heat distribution
Rapid heat-up
Compact design for restricted installation spaces
Available with or without thermocouple holes
Wide range of lead exit positions
Multiple termination and connection options
Suitable for a wide range of industrial applications
Available for OEM and replacement applications
Fast manufacturing lead times available

Applications

Our custom nozzle heaters are widely used throughout the plastics and processing industries, including:

Injection moulding machines
Plastic extrusion equipment
Blow moulding machinery
Hot runner systems
Packaging machinery
Food-processing equipment
Rubber-processing machinery
Laboratory equipment
Pharmaceutical production equipment
OEM machinery
Industrial process heating
Replacement and maintenance applications

Whether you require a single replacement heater or volume production for new machinery, Soloheat can manufacture nozzle heaters to suit your application and specification.

Nozzle Heater Termination Types

To suit different machine designs and installation requirements, Soloheat offers a comprehensive range of electrical termination options.

Available configurations include:

Axial lead exits
Radial lead exits
Opposed lead exits
Flexible insulated leads
Fibreglass-insulated cables
Stainless-steel braided leads
Armoured conduit protection
Plug and socket connections (subject to minimum size requirements)
Screw terminals
Custom termination assemblies, including customer-specified components where suitable

Our engineers can recommend a suitable termination arrangement based on operating temperature, installation space and cable-protection requirements.

How Mica Nozzle Heaters Work

Mica nozzle heaters generate heat using a nickel-chromium resistance element wound around high-grade mica insulation. When electrical power is applied, heat is transferred through the mica insulation and stainless-steel outer sheath into the machine nozzle.

The close-fitting band design provides efficient thermal contact, allowing rapid heat transfer and uniform heat distribution around the nozzle circumference. When used with a suitable temperature sensor and controller, the heater can maintain the required process temperature.

This construction provides a practical balance of performance, durability and cost-effectiveness, making mica nozzle heaters widely used throughout the plastics-processing industry.

Need a fast quotation? Send us your drawing, survey sheet or existing heater reference for a same-day technical review.

Types of Nozzle Heaters

Mica Insulated Nozzle Heaters – Maximum Application Temperature: ≤300°C (572°F)

Mica insulated nozzle heaters provide a cost-effective solution for low- to medium-temperature applications where a compact, close-fitting heater is required.

Our stock range of mica nozzle heaters, available to purchase from our online store, is supplied with twin 1000 mm stainless-steel braided leads with low-profile exits, typically with one lead exiting from each side of the clamping gap.

Other diameters, widths, wattages, voltages and lead arrangements are available through our UK bespoke manufacturing service.

For applications requiring greater mechanical protection, higher operating temperatures or more demanding operating conditions, our sealed or mineral-insulated coil nozzle heater constructions may be more suitable.

Sealed Nozzle Heaters – Maximum Application Temperature: ≤350°C (662°F)

Sealed nozzle heaters are suitable for medium- to high-temperature applications, particularly where moisture, plastic leakage or contamination may be present around the machine nozzle.

These heaters are mineral insulated and typically incorporate a brass or stainless-steel outer sheath with a sealed lead-exit arrangement and stainless-steel braided lead protection. This construction provides increased mechanical protection and helps reduce the risk of moisture or molten plastic entering the heater termination.

MI Coil Nozzle Heaters – Maximum Application Temperature: ≤750°C (1382°F)

Mineral-insulated (MI) coil nozzle heaters are designed for higher-temperature and more demanding applications where increased mechanical strength and durability are required.

Manufactured from either round or square-section Incoloy tubing, the heater can be formed closely around the nozzle to provide good surface contact and efficient heat transfer. The mineral-insulated construction also provides a robust alternative to conventional mica nozzle heater designs.

MI coil nozzle heaters can be manufactured with an integrated thermocouple and stainless-steel outer clamping band where required, with dimensions, wattage, voltage and termination arrangements selected to suit the application.

Nozzle Heater Lead Times

We understand that machine downtime is costly, which is why we offer fast manufacturing and responsive technical support.

Typical availability and manufacturing lead times include:

Stock nozzle heaters: available for immediate despatch from our online store, subject to stock availability
Standard manufacture: typically 5–7 working days
Priority manufacture: typically 2–3 working days, subject to specification and manufacturing capacity
Emergency breakdown service: available for urgent requirements, subject to manufacturing capacity

Please contact us if your application requires an expedited manufacturing service.

Order or Enquire

Click here to download our Nozzle Heater Survey Sheet template.

Alternatively, email us with as much of the following information as possible:

Inside diameter (ID)
Width
Voltage
Wattage
Lead exit position
Lead length
Termination type and lead protection, where applicable
Thermocouple hole or integrated thermocouple requirement, where applicable
Operating temperature
Heater application
Quantity required
Required delivery date

If these details are unavailable, we can often manufacture a suitable replacement from an existing heater sample, drawing or photograph.

Nozzle Heater Warranty

Please refer to Section 6 of our Terms and Conditions of Business regarding warranty.

Why Use Mica Nozzle Heaters?

Mica nozzle heaters provide a proven and economical solution for heating injection moulding machine nozzles and other cylindrical components.

Their advantages include:

Fast and efficient heat transfer
Compact construction for restricted installation spaces
Uniform heat distribution around the heated component
Cost-effective manufacture
Simple installation and replacement
Suitable for both OEM and replacement applications
Wide range of diameters, widths, wattages and voltages
Multiple lead and termination configurations

For many plastics-processing applications operating within the appropriate temperature range, mica nozzle heaters provide a practical balance of performance, reliability and cost.

Why Choose Soloheat?

Since 1980, Soloheat has specialised in the design and manufacture of industrial electric heating elements for customers throughout the UK and overseas.

When you choose Soloheat, you benefit from:

UK manufacturing since 1980
Stock nozzle heaters and bespoke designs manufactured to customer requirements
High-quality materials and workmanship
Experienced technical support
Fast quotation turnaround
OEM and replacement heater manufacture
Flexible production quantities, from one-off replacements and prototypes to larger production runs
Multiple nozzle heater constructions for different operating temperatures and environments

Whether you require a replacement nozzle heater or a customised heating solution for new equipment, our experienced team can help specify a suitable heater for your application.

Soloheat Electric Heating Element Solutions – Quick Links

Not sure this is the right heater type for your application? Take a look at our other heating solutions:

For more information on electric heating engineering principles, view our Engineering Guide.