Mica Nozzle Heaters & Nozzle Band Heaters for Injection Moulding Machines | UK 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, high-performance heaters are designed to deliver rapid heat transfer around machine nozzles while maintaining precise 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 numerous lead and termination options to suit both OEM and replacement applications.

Need a Nozzle Heater quickly?

We stock a growing range of standard Nozzle Heaters available to purchase online with live pricing.

✔ Standard diameters, widths & low profile lead exits

✔ Popular wattages

✔ Fast UK dispatch

Browse our Online Cartridge Heater Store →

Standard Features

Soloheat mica nozzle heaters are engineered for long service life, efficient heat transfer and reliable performance in demanding industrial environments:

Manufactured in the UK to customer specifications
High-quality mica insulated construction
Stainless steel outer sheath
Uniform heat distribution
Rapid heat-up and excellent temperature stability
Compact design for restricted installation spaces
Available with or without thermocouple holes
Wide range of lead exit positions
Multiple terminal and connection options
Suitable for continuous industrial operation
Available as replacement or OEM heaters
Fast production and delivery

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
OEM machine manufacture
Industrial process heating
Replacement machine maintenance

Whether you require a single replacement heater or volume production for new machinery, Soloheat can manufacture heaters to your exact requirements.

Terminations

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 – fitting of Clients bespoke components

Our engineers can recommend the most suitable termination based on operating temperature, installation space and cable protection requirements.

How Mica Nozzle Heaters Work

Mica nozzle heaters generate heat using a precision wound nickel-chromium resistance element embedded within high-grade mica insulation. When electrical power is applied, heat is transferred evenly through the mica insulation into the stainless steel outer sheath before being conducted directly into the machine nozzle.

The close-fitting band design ensures efficient thermal contact, providing rapid heat-up, accurate temperature control and uniform heat distribution around the nozzle circumference.

This construction offers an excellent balance of performance, durability and cost-effectiveness, making mica nozzle heaters one of the most widely used heating solutions within the plastics processing industry.

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

Types of Nozzle Heater

Types

Mica Insulated Nozzle Heaters – Highest application temperatures < 300oC / 572oF

For Low to medium heat applications. Low cost and not as robust compared with other styles of nozzle heaters.

Our stock range of Mica Nozzle Heaters available to buy from our web store are terminated with twin 1000mm steel braided leads, low profile exit i.e. one lead exiting each side of the clamping gap.

Other sizes and lead exits / types are available from our UK bespoke manufacturing factory.

Sealed nozzle heaters – Highest application temperatures > 300oC / 572oF

For medium to high heat applications, particularly where moisture and plastic drool is more prevalent.

Sealed nozzle heaters are mineral insulated and typically sheathed in brass or stainless steel with a brazed stainless steel braided lead exit to minimise risk of damage from moisture and plastic ingress.

Coil nozzle heaters – Highest application temperatures > 750oC / 1382oF

For higher heat applications. Higher cost but more robust than other styles of nozzle heaters. Mineral Insulated Coil nozzle heaters can last around ten times longer than a srandard mica nozzle heater thus offering a longer term savings on cheaper nozzle heaters. They are manufactured from square section incoloy tubing which provides excellent surface contact and heat transfer. This style of heater can be produced with an integrated thermocouple and stainless steel outer clamping band, if required.

Lead Time

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

Typical production times include:

Stock items available for immediate despatch from our Web Store below
Standard manufacture: 5–7working days
Priority manufacture: 2–3 working days (subject to specification)
Emergency breakdown service available for urgent requirements

Please contact us if your application requires an expedited delivery.

To order or enquire

Obtaining a quotation is straightforward.

Click here to download our Nozzle Heater survey sheet template

Simply email us and provide as much of the following information as possible:

Internal diameter
Band width
Voltage
Wattage
Lead exit position
Lead length
Termination type
Thermocouple hole (if required)
Operating temperature
Quantity required

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

Please refer to our term and conditions regarding warranty. (Section 6)

Why Use Mica Nozzle Heaters?

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

Their advantages include:

Multiple types available depending on installation environment and temperature range required
Fast and efficient heat transfer
Compact installation
Excellent temperature uniformity
Cost-effective manufacture
Reliable long-term performance
Simple installation and replacement
Suitable for both OEM and retrofit applications
Wide range of custom configurations

For many plastics processing applications, mica nozzle heaters provide the ideal balance of performance, reliability and affordability.

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:

Over 45 years of UK manufacturing experience
Stock range, & bespoke designs to customer drawings
High-quality materials and workmanship
Experienced technical support
Fast quotation turnaround
Competitive pricing
OEM and replacement manufacturing
Flexible production quantities from one-off prototypes to larger production runs
Reliable lead times
Commitment to quality, performance and customer service

Whether you require a replacement nozzle heater or a fully customised heating solution for new equipment, our experienced team is ready to help specify the right product for your application.