Best Mica Heater Bands for Injection Molding and Small Machines

Mica heater bands provide reliable surface heating for injection molding nozzles, barrels, and small industrial equipment. The selections below focus on common sizes, durable materials, and typical wattage used in smaller heaters. The table summarizes the five featured products so you can compare at a glance before reading detailed reviews.

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

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

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This Nxtop kit includes two identical mica band heaters sized at 35 x 35 mm inner diameter and rated at 380W / 110V. The product lists a rust resistant steel sheath and a stainless steel clamp type lock-up to secure the band around a nozzle or small barrel. The design notes a notched sleeve to simplify installation and a flush hex for nozzle clearance.

Use cases called out in the product details indicate primary application in plastic injection machine heating devices and filled containers. The hardware and sheath materials suggest a focus on corrosion resistance and mechanical stability around heated metal surfaces.

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

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The YXQ two-pack mirrors many specifications of similar mica band heaters: 380W at 110V, stainless clamp lock-up, and rust-resistant sheath. The seller emphasizes a notched sleeve for easier mounting and the typical application for plastic injection equipment.

Key functional points include compatibility with smaller-diameter nozzles and a clamp mechanism designed to maintain contact pressure. These heaters are presented as replacement elements where size and watt density align with equipment needs.

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

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This Saim offering provides a five-pack of the same size mica band heater (35 x 35 mm) at 380W, 110V, useful for stocking replacement parts or servicing multiple machines. The listing includes a specified braid lead length of 31 cm (12.2″), which is helpful for routing electrical leads away from heat sources.

The construction features a rust-resistant outer sheath and stainless clamp lock-up similar to the other injected mould types. The pack quantity and lead length are the main distinguishing details for setups requiring spare elements or more flexible lead placement.

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

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This single-unit YXQ band heater restates key features: rust resistant steel sheath, stainless steel clamp, and a notched sleeve facilitating installation. The product description repeats suitability for plastic injection equipment and similar heating applications.

While the wattage and voltage match the other 380W items, this listing is positioned for single replacements or incremental additions to tooling where only one heater is needed at a time.

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

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The Tempco band heater differs from the injected-mould items in several notable ways: it is rated for up to 900°F (482°C), has a 1″ inside diameter, and lists a 120V rating with 150W nominal power. Construction specifies mica insulated steel inside with stainless steel outside and a 10″ lead wire.

This item provides a documented maximum temperature and a U.S. origin reference for the component. The lower wattage and different ID make it suitable for very small-diameter barrels or precise localized heating where mica insulation and temperature tolerance are key concerns.

Buying Guide: How To Choose A Mica Heater Band

Selecting the right mica heater band requires matching physical, electrical, and operating characteristics to your equipment and process. Use the points below to compare options across multiple perspectives.

Physical Size And Fit

• Inner Diameter (ID): The heater must closely match the nozzle or barrel diameter for even heat transfer. Measure the target surface and allow minimal gap.
• Width: Wider bands provide more contact area; confirm width tolerance and whether clamps will clear surrounding fittings.
• Mounting Features: Notched sleeves, clamp types, and flush hex designs affect ease of installation and clearance around nozzles.

Wattage, Voltage, And Watt Density

• Wattage: Choose wattage based on required heating rate and the thermal mass of the part. Higher wattage heats faster but increases power draw and watt density.
• Voltage: Match the heater voltage to your control circuit (110/120V vs. 220/240V systems). Using the wrong voltage changes output and can damage the element.
• Watt Density: For small diameters, ensure the watt density (watts per unit area) is appropriate to avoid overheating the mica or substrate.

Materials And Durability

• Sheath Material: Stainless steel or rust-resistant steel sheaths provide corrosion resistance and mechanical protection.
• Mica Insulation: Mica offers electrical insulation and good thermal conduction; confirm maximum temperature ratings and manufacturing quality.
• Clamps And Fasteners: Stainless steel clamp lock-ups maintain contact pressure and resist oxidation in high-heat environments.

Lead Lengths And Electrical Termination

• Lead Length: Longer braid leads allow safer routing away from heat; check lengths to ensure they meet your layout.
• Termination Type: Verify whether leads are braid, wire leads, or terminal studs; choose the type compatible with your wiring and controllers.

Temperature Range And Application

• Maximum Operating Temperature: Some band heaters specify maximum temperatures (e.g., 900°F). Ensure the element rating exceeds the process temperature.
• Application Suitability: Confirm the manufacturer lists compatibility with injection molding, small barrel heating, or other specific uses.

Quantity, Maintenance, And Replacements

• Spare Inventory: Buying multi-packs can be cost-effective when multiple identical machines or frequent replacements are expected.
• Serviceability: Consider how easily a band heater can be removed and replaced, especially in confined tool areas.
• Inspection Points: Look for signs of mechanical wear, lead insulation discoloration, or loss of clamp tightness during preventive maintenance.

Compatibility With Controllers And Safety

• Controller Match: Ensure your temperature controller and SSR/relays are rated for the heater’s voltage and inrush; protect circuits with appropriate fusing.
• Thermal Cutouts: Consider secondary thermal limits or thermal fuses where overheating could damage tooling or create hazards.

Comparison Perspectives

• Single Unit vs. Multi-Pack: Multi-packs (Saim 5-pack) are useful for spares; single units are practical for one-off replacements.
• High Temp Capability: Tempco specifies a high maximum temperature, useful where extreme surface temperatures are required.
• Lead Routing Needs: Models with specified braid lead length reduce the need for extension wiring in tight layouts.
• Material Preference: If corrosion or oxidation is a concern, prioritize stainless steel sheath and clamp materials.

Use the above considerations to confirm fit, electrical compatibility, and thermal performance before purchasing. Proper selection reduces downtime and improves thermal stability for injection molding and similar heating applications.