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
ELEKHEAT Certification
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?
Can you manufacture cartridge heaters from drawings or samples?
Do you make high-density cartridge heaters?
Can you add a thermocouple to the cartridge heater?
What sheath materials are available?
Do you support prototype and bulk orders?
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.
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Phone Number
+86 159 9632 6879
0086159 9632 6879












