Best Mica Band Heaters for Injection Molding and Industrial Use

Choosing the right mica band heater matters for consistent heat, long service life, and safe operation in injection molding and process equipment. Below is a quick comparison of the selected band heaters to help you scan features and compatibility at a glance.

Product	Brand	Key Specs
Nxtop 110V 380W Injected Mould Band Heater (35x35mm)	Nxtop	110V, 380W, rust resistant steel sheath, clamp lock-up
YXQ 110V 380W Injected Mould Band Heater (35x35mm, 2Pcs)	YXQ	110V, 380W, stainless clamp, notched sleeve
Saim 110V 380W Injected Mould Band Heater (35x35mm, 5Pcs)	Saim	110V, 380W, 31cm braid lead, 35x35mm
YXQ 110V 380W Injected Mould Band Heater (35x35mm)	YXQ	110V, 380W, rust resistant sheath, clamp lock-up
Band Heater, 1 in. Dia, 900 Deg F, 120V	Tempco	120V, 150W, mica insulated steel inside, max 900°F

Nxtop 110V 380W Injected Mould Heating Element Band Heater 35x35mm (2-PCS)

Check Price on Amazon

The Nxtop 110V 380W band heater is designed for plastic injection machine heating devices and is supplied as a two-piece set. The heater uses a rust resistant steel sheath and a stainless steel clamp type lock-up for mechanical retention. Its notched sleeve design facilitates installation and alignment, and the unit is specified to sit flush with nozzle hex surfaces when fitted.

Key electrical ratings include 110V and 380W, appropriate for many small to medium injection molding nozzles or barrels where that power and voltage match machine requirements. The construction emphasizes corrosion resistance and clamp retention, which supports stable thermal contact and long-term use in plastics processing environments.

YXQ 110V 380W Injected Mould Heating Element Band Heater 35x35mm, 2Pcs

Check Price on Amazon

This YXQ pair of band heaters matches the same basic size and electrical rating as other 35x35mm injected mould elements. The product emphasizes a rust resistant steel sheath and a stainless steel clamp lock-up system that secures the heater around a cylindrical surface. A notched sleeve facilitates installation around the nozzle or barrel.

Performance-wise, the 110V/380W rating makes these heaters suitable for equipment using that voltage. The design intention is to provide reliable thermal transfer to small-diameter barrels and nozzles commonly found on desktop or bench-level injection molding machines and retrofit applications.

Saim 110V 380W Injected Mould Heating Element Band Heater 35x35mm, 5Pcs

Check Price on Amazon

The Saim kit provides five band heaters of the same 35x35mm dimension and 110V/380W rating, intended for users who need multiple replacements or batch installations. The heaters use a rust resistant outer sheath and a stainless steel clamp to secure them in place, while a longer braid lead (approximately 31cm / 12.2″) allows flexible routing of connections in densely packed machine areas.

Because the pack includes multiple pieces, this option is useful for maintenance schedules or multi-station equipment. The stated braid lead length helps when terminal placement is not adjacent to the heater, enabling safer wire routing and reducing strain on electrical connections.

YXQ 110V 380W Injected Mould Heating Element Band Heater 35x35mm

Check Price on Amazon

This single-piece YXQ band heater reiterates the common features found in similar injected mould elements: rust resistant sheath, stainless steel clamp, and an installation-friendly notched sleeve. Its application statement identifies use in plastic injection machine stuffing containers and nozzle heating.

For applications where only a single replacement heater is needed or where supply sources are fragmented, this single-unit offering provides the same heating characteristics as the two- and five-piece packs, enabling like-for-like replacement while maintaining machine thermal performance.

Band Heater, 1 In. Dia, 900 Deg F, 120V

Check Price on Amazon

The Tempco mica-insulated band heater targets higher-temperature industrial needs with a rated maximum of 900°F. It lists 120V operation and 150W output with a mica-insulated steel inside and stainless steel outside construction. The heater width is approximately 1.5″ with an inside diameter of 1″.

This design reflects a different application profile compared with the 35x35mm injected mould heaters: it is intended for small-diameter barrels or mandrels requiring higher temperature capability and mica insulation. The product specification includes 10″ lead wires and a stated watt density, which are useful when matching heater selection to expected thermal loads and maximum allowable surface watt density.

Buying Guide: How To Choose The Right Mica Band Heater

Selecting the correct mica band heater requires matching mechanical size, electrical rating, thermal capability, and installation features to your equipment. Below are the core factors to evaluate.

1. Match Electrical Specifications

Verify the voltage and wattage match your machine’s heater circuit and controller. Using a heater rated at the wrong voltage can cause underperformance or overcurrent. Most items above are 110V/380W or 120V designs—confirm compatibility before replacement.

2. Confirm Mechanical Dimensions

Inner diameter, band width, and thickness determine fit and thermal contact. The 35x35mm bands are sized for specific nozzle or small barrel diameters; the Tempco 1″ inside diameter band targets different geometries. Measure the mount area precisely and allow for clamp closure tolerances.

3. Consider Thermal Requirements

Assess required operating temperature and maximum rated temperature. Mica-insulated heaters can handle high temperatures; Tempco’s 900°F rating suits aggressive thermal needs. For standard plastic melting temperatures, match heater wattage and distribution to avoid hot spots.

4. Clamp And Mounting Type

A reliable clamp system supports even pressure and consistent thermal contact. Look for stainless steel clamp lock-up or screw-clamp designs and any notched sleeves that ease installation. Proper mechanical retention prevents movement and improves heat transfer.

5. Sheath Material And Corrosion Resistance

For humid or corrosive environments, a rust resistant steel sheath or stainless steel outer layer provides longer life. Sheath choice affects durability and may influence heat transfer slightly due to thickness differences.

6. Lead Configuration And Electrical Termination

Lead length, braid style, and termination type impact installation routing and electrical safety. Longer braid leads (like Saim’s ~31cm) help reach remote terminals. Confirm whether you need specific insulated leads, terminal lugs, or junction boxes.

7. Watt Density And Heat Distribution

Watt density (watts per square inch) influences how quickly surfaces heat and whether the heater can be used at a given temperature without overheating the insulation. For materials sensitive to hot spots, choose a heater with appropriate watt density and even contact pressure.

8. Quantity And Maintenance Planning

Decide whether buying multiple units makes sense for scheduled maintenance. Packs like the Saim 5-piece kit lower logistical delays for multi-station equipment. Single-piece options are useful for one-off replacements.

9. Application Compatibility

Consider the intended equipment: injected mould nozzles, barrels, or laboratory mandrels each have distinct geometry and thermal control needs. Confirm manufacturer guidance for heater placement and whether additional sensors or thermocouples are required.

10. Safety And Regulatory Considerations

Ensure wiring practices, grounding, and over-temperature protection meet applicable safety standards. Use appropriate controllers, fuses, and thermocouples to prevent overheating. Verify that the heater’s maximum temperature rating aligns with safety margins for insulation and adjacent components.

Comparison Perspectives To Help You Decide

When choosing between similar 35x35mm injected mould heaters, prioritize these comparison points:

• Installation Ease: Notched sleeves and clamp designs that simplify fitting speed up maintenance.
• Lead Length And Routing: Longer braid leads reduce strain and enable safer routing in tight machine layouts.
• Quantity Requirements: Multi-pack offerings reduce the risk of downtime when several heaters need replacement simultaneously.
• Temperature Capability: For higher process temperatures, favor mica-insulated designs with higher max ratings such as the Tempco unit.
• Durability: Stainless or rust-resistant sheaths and robust clamps extend service life in industrial environments.

Using the above buying guide and comparison perspectives will help match a mica band heater to your machine’s electrical, mechanical, and thermal needs. Always verify compatibility against your equipment’s documentation and consult a qualified technician for installation where required.