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Custom Cartridge Heaters Built to Your Specifications

High-density single-ended cartridge heaters for molds, dies, packaging machinery, sealing equipment and precision industrial heating. Custom diameter, length, voltage, wattage, lead wire and sheath material available.

  • Custom sizes from drawing, sample or application requirements
  • High watt density options for compact heating spaces
  • Stainless steel / Incoloy sheath options
  • Thermocouple, flange, threaded bushing and special lead wire designs available
  • Price and lead time reviewed within 24 hours

Custom Cartridge Heaters Built to Your Specifications

High-density single-ended cartridge heaters for molds, dies, packaging machinery, sealing equipment and precision industrial heating. Custom diameter, length, voltage, wattage, lead wire and sheath material available.

  • Custom sizes from drawing, sample or application requirements
  • High watt density options for compact heating spaces
  • Stainless steel / Incoloy sheath options
  • Thermocouple, flange, threaded bushing and special lead wire designs available
  • Price and lead time reviewed within 24 hours

Custom Cartridge Heater Options

Customize your cartridge heater by diameter, length, voltage, wattage, lead wire type, and sheath material. OEM and custom designs are welcome.

Built to your specifications for OEM and industrial applications.

ELEKHEAT Cartridge Heaters

High-Density Cartridge Heaters

Definition: Designed for rapid heat transfer with high wattage per unit area.
Power Density: ≥300 W/in² (≥46.5 W/cm²).
Voltage: 120V, 240V, or custom.
Materials: Durable alloys (e.g., Incoloy sheath) to withstand thermal stress.
Applications: Injection molding, die casting, 3D printers.
Situations requiring fast heat-up times (<5 minutes).

Low-Density Cartridge Heaters

Definition: Optimized for steady, continuous heating with lower wattage distribution.
Power Density: ≤50 W/in² (≤7.75 W/cm²).
Voltage: Lower voltage options for delicate applications.
Materials: Stainless steel (SS304/SS316) for corrosion resistance.
Applications: Food processing, packaging machinery, medical equipment.
Long-duration processes require stable temperatures.

Metric Cartridge Heaters

Dimensions: 4mm–25mm (common: 6mm, 8mm, 10mm).
Length: 20mm–500mm (standard: 40mm, 80mm, 120mm).
Recommended Bore Clearance: Diameter ±0.01–0.02mm (tight fit for efficiency).
Regions: Widely used in Europe, Asia, and ISO-compliant industries.
Example: 8mm diameter × 60mm length, 400W, 240V.

Imperial (Inch-Size) Cartridge Heaters

Diameter: 1/8″–1″ (common: 1/4″, 3/8″, 1/2″).
Length: 1″–12″ (standard: 2″, 4″, 6″).
Recommended Bore Clearance: ±0.001″–0.003″ for optimal thermal contact.
Regions: Predominant in North America and legacy machinery.
Example: 0.375″ diameter × 4″ length, 500W, 120V.

Immersion Cartridge Heaters

Definition: Designed to heat liquids or gases by direct immersion.
Power Density: 30–100 W/in² (4.65–15.5 W/cm²), depending on fluid type.
Materials: Corrosion-resistant sheath (SS316, Incoloy, titanium).
Safety Features: Double sealing, waterproof terminals, grounded elements.
Applications: Boilers, oil tanks, chemical processing, water heating.

Micro Cartridge Heaters

Definition: Ultra-compact heaters for confined spaces or precision heating.
Diameter: 1–4 mm (metric) or 0.04″–0.16″ (imperial).
Voltage: 12V–48V (low-voltage for safety in sensitive systems).
Materials: Inconel sheath for high heat in small sizes.
Applications: Medical devices, semiconductor tools, and aerospace sensors

Bolt-On Cartridge Heaters

Definition: Integrated with mounting flanges/brackets for easy installation.
Power Density: Medium (50–80 W/in² / 7.75–12.4 W/cm²).
Mounting: M4–M8 bolts or 1/4″–3/8″ threaded flanges.
Shape: Cylindrical or flat-faced for surface contact.
Applications: Plastic extrusion barrels, industrial ovens, HVAC systems.

Rectangular Cartridge Heaters

Definition: Flat, block-shaped heaters for uniform heat distribution.
Dimensions: 5x 10 mm to 20x 50 mm (metric) or 0.2″x0.4″ to 0.8″x2″(imperial).
Materials: Copper or brass housing for heat spreading.
Applications: Flat-press molds, packaging seals, lab equipment platens.

Custom Cartridge Heaters

Definition: Bespoke designs for unique applications.
Specifications:
Tailored Features: Non-standard diameters, bent shapes, multi-zone coils.
Materials: Exotic alloys (Hastelloy, ceramic coatings) for extreme conditions.
Voltage: Custom wattage/voltage configurations (e.g., 480V, three-phase).

Custom Cartridge Heater Options

Every cartridge heater can be customized to match your equipment, installation requirements, and operating conditions.

Diameter 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 10 mm, 12 mm, 1/4", 3/8", 1/2", and custom sizes
Length Made to drawing or application requirements
Voltage 12V, 24V, 110V, 120V, 220V, 230V, 240V, 380V, and custom voltage
Wattage Designed according to heating speed, working temperature, and installation space
Sheath Material SS304, SS316, SS321, Incoloy, and other options
Lead Wire Fiberglass, Silicone, PTFE, Metal Braid, Right-angle Leads, Spring Protection
Options Built-in Thermocouple, Flange, Threaded Bushing, Stopper, Special Terminal, High-temperature Lead Wire

Optional Components & Terminations

Select the add‑ons that match your environment, clearance, and control method. Include these in your RFQ (or just pick from the checklist—defaults shown).

Cartridge Heater With Thermocouple

Cartridge heater with built-in Type J or Type K thermocouple

Standard Type

Cartridge heater sheath: SUS321 (stainless steel) Thermocouple: J/K type (wires are wrapped in fiberglass tubing, positive terminal is indicated in red) cartridge heater wire: Nickel-plated copper lead wire with fiberglass insulation

External L-Shaped Cartridge Heater

Straight Cut L-shaped Cartridge Heater

Cartridge Heater Lead Exit Configurations

The output terminals of the cartridge heater are made available through various additional processing options (such as lead wire protection, flanges, locating rings, and right-angle construction) to meet the usage requirements of the cartridge heater in different environments.

Applications

Plastic injection molds and dies

Packaging and sealing machinery

Hot runner systems

3D printer and extrusion equipment

Medical and laboratory devices

Food processing equipment

Shoe machinery and laminating equipment

Semiconductor and precision heating equipment

Why Choose ELEKHEAT

Custom Design

  • Size & Shape: Customizable.
  • Power & Voltage: Application-specific.
  • Materials: Various options available.
  • Mounting: Flexible.

Installation Assistance

Our experienced engineers provide comprehensive installation support to ensure the smooth installation of heating elements.

Flexible support from prototype testing to volume production

Benefit from our flexible ordering, whether for one piece or thousands, ideal for start-ups and other businesses.

Expert Advice

Share your needs with us and our experts will propose the best heating element solution for your application.

For wholesalers: Wholesalers need large inventories, competitive prices, and stable quality. Leveraging our vast resources and state-of-the-art production capabilities, we offer premium-quality heating element products at market-friendly prices.

For contractors: Contractors need to deal with unique project needs and tight schedules. We provide custom solutions and adaptable manufacturing to ensure the success of every project.

For brand stewards: Brand leaders aim for unique products, consistent branding and high standards. With our team of experts, we manufacture heating element products that maintain brand integrity and quality.

For dealers: Dealers value stable inventory, variety and speed. Our extensive product range of heating elements and strong logistics links ensure fast and reliable shipping.

Manufacturing Process

1.Tube Cutting
2.Bottom Welding
3.Coil Winding
4.Magnesium Oxide Rod Cutting
8.Tube Machining
7.Polishing
6.Tube Swaging
5.Inserting Lead Rod
9.Sealing
10.Flange Bracket Welding
11.Lead Wire Connection
12.Testing Process
1.Tube Cutting
2.Bottom Welding
3.Coil Winding
4.Magnesium Oxide Rod Cutting
5.Inserting Lead Rod
6.Tube Swaging
7.Polishing
8.Tube Machining
9.Sealing
10.Flange Bracket Welding
11.Lead Wire Connection
12.Testing Process

ELEKHEAT Certification

Shipping in Progress

ELEKHEAT Factory Insight

Frequently Asked Questions

Find answers to common questions about our custom cartridge heaters.

What information do you need to quote a custom cartridge heater?
Please provide the diameter, length, voltage, wattage, lead wire type, quantity, working temperature, and application. Drawings or samples help us provide a faster and more accurate quotation.
Can you manufacture cartridge heaters from drawings or samples?
Yes. We manufacture custom cartridge heaters based on customer drawings, samples, or specific application requirements.
Do you make high-density cartridge heaters?
Yes. High watt density cartridge heaters are available depending on the heater size, sheath material, installation fit, and operating temperature.
Can you add a thermocouple to the cartridge heater?
Yes. Built-in thermocouple cartridge heaters are available for selected custom projects where precise temperature monitoring is required.
What sheath materials are available?
Common sheath materials include stainless steel and Incoloy. Our engineers will recommend the most suitable material based on operating temperature, environment, and application conditions.
Do you support prototype and bulk orders?
Yes. We support prototype validation, low-volume production, and repeat bulk manufacturing for qualified OEM and industrial customers.

Get In Touch Now!

For a faster quote, please include diameter, length, voltage, wattage, lead wire type, quantity and application. Drawings or samples are helpful.

Contact

“Within 5 Minutes, Get a Response from Our Customer Service!”

Need free samples for testing? Then contact us!

Phone Number

+86 159 9632 6879

WhatsApp

0086159 9632 6879

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