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Industrial Cartridge Heaters: High-Density & Custom Heating Solutions
The Art of Precision Heating
ELEKHEAT manufactures precision cartridge heaters for injection molding, hot runner systems, packaging machinery and industrial heating equipment. Custom diameters, lengths, voltages, wattages and termination options are available.
- Custom OEM Manufacturing
- Temperature Up To 800°C
- CE / RoHS Certified
- Engineering Support
Comprehensive Range of Industrial Cartridge Heaters.
Comprehensive Range of Industrial Cartridge Heaters
Designed for rapid heating and high temperature applications requiring maximum heat output in limited spaces.
Low Watt Density Cartridge Heaters
Ideal for applications requiring stable temperature control, longer service life, and reduced surface loading.
Square Cartridge Heaters
Providing excellent heat transfer performance for molds, dies, sealing machines, and industrial equipment.
Threaded Cartridge Heaters
Designed with threaded connections for secure installation and efficient heat transfer in industrial systems.
Metric Cartridge Heaters
Manufactured with standard metric diameters for European molds, dies, and precision industrial heating applications.
Immersion Cartridge Heaters
Engineered for direct liquid heating applications including oil tanks, chemical containers, and process equipment.
Finned Cartridge Heating Elements
Extended surface design improves heat transfer efficiency for air heating and specialized industrial applications.
Miniature Cartridge Heaters
Compact heating solutions designed for small equipment, precision instruments, and limited installation spaces.
Custom Cartridge Heaters
Fully customized cartridge heaters with tailored dimensions, voltage, wattage, materials, and lead configurations.
We provide a full cartridge heater size selection to match industry-standard and custom-designed equipment.
Diameters
Standard: 6mm cartridge heater, 8mm, 10mm, 12.5mm
Imperial: 1/8”, 1/4”, 3/8”, 1/2”, 5/8”, 3/4”
Custom diameters available upon request
Length Range
20 mm – 1500 mm (depending on diameter)
Voltage Options
12V / 24V / 48V / 110V / 120V / 220V / 230V / 380V
Watt Density Levels
- Low watt density
- Standard watt density
- High watt density (up to 40 W/cm²)
Custom Cartridge Heater Solutions
From standard cartridge heaters to high-density designs, ELEKHEAT provides engineered heating solutions for demanding industrial applications.
Standard Cartridge Heater
Reliable heating elements for molds, dies and general industrial equipment.
High Density Cartridge Heater
High compressed MgO insulation and precision swaging for high temperature applications.
Cartridge Heater With Thermocouple
Integrated J/K thermocouple options for accurate temperature control.
Custom Cartridge Heater
OEM manufacturing according to drawings, voltage and installation requirements.
Cartridge Heater Internal Construction
A reliable cartridge heater requires precise internal construction. ELEKHEAT uses high purity MgO insulation, nickel chromium resistance wire and controlled compression technology to achieve efficient heat transfer and long service life.
- Stainless Steel Sheath
304 / 316 stainless steel and Incoloy options available. - NiCr Resistance Wire
Stable electrical performance under high temperature conditions. - High Purity MgO Insulation
Excellent electrical insulation and thermal conductivity. - Sealed End Construction
Protects heater from moisture contamination.
Cartridge Heater Lead & Termination Options
Different lead configurations are available for various industrial installation environments.
Swaged-in Flexible Leads
Standard electrical connection solution for general industrial applications.
Right Angle Leads
Designed for compact equipment where installation space is limited.
Stainless Steel Armor Cable
Provides mechanical protection in harsh industrial environments.
Threaded Screw Plug
Suitable for liquid heating and threaded mounting applications.
Cartridge Heater Technical Specifications
| Parameter | Specification |
|---|---|
| Diameter | 6mm – 50mm Custom |
| Length | 20mm – 2000mm Custom |
| Voltage | 12V – 480V |
| Power | 50W – 5000W+ |
| Sheath Material | SS304 / SS316 / Incoloy 800 |
| Maximum Temperature | Up to 800°C |
Cartridge Heater Installation Guidelines
Proper installation improves heat transfer efficiency and prevents premature heater failure.
| Heater Diameter | Recommended Hole Size | Clearance |
|---|---|---|
| 6mm | 6.05 – 6.10mm | 0.05 – 0.10mm |
| 8mm | 8.05 – 8.15mm | 0.05 – 0.15mm |
| 10mm | 10.05 – 10.15mm | 0.05 – 0.15mm |
| 12mm | 12.05 – 12.15mm | 0.05 – 0.15mm |
| 16mm | 16.05 – 16.15mm | 0.05 – 0.15mm |
Excessive clearance creates air gaps between the heater and bore, reducing heat transfer efficiency and increasing the risk of overheating.
Cartridge Heater Watt Density Calculator
Cartridge Heater Watt Density Guide
< 5 W/cm²
Low watt density. Suitable for sensitive heating applications and extended heater life.
5 – 15 W/cm²
Standard range for molds, dies and general industrial heating.
15 – 30 W/cm²
High density design for fast heating applications with good heat transfer.
> 30 W/cm²
High performance swaged cartridge heater required. Ensure proper installation.
Cartridge Heater Applications
Injection Molding
Used for molds, dies, hot runner systems and nozzle heating.
Packaging Machinery
Provides precise heating for sealing, cutting and forming equipment.
Plastic Processing
Suitable for extrusion machines, molding equipment and thermal systems.
Medical Equipment
Reliable heating solution for laboratory and precision equipment.
Quality Testing & Inspection
Every heater undergoes rigorous cartridge heater testing, including
Insulation resistance test
Dielectric strength test
High-temperature burn-in
Resistance & wattage verification
Dimensional accuracy inspection
Lead integrity validation
These quality checks guarantee safe operation and stable long-term performance.
Tailored to Your Specifications: Custom Cartridge Heaters.
We understand that standard products cannot fulfill all application needs. We specialize in providing custom cartridge heaters, transforming your unique requirements into highly efficient heating solutions. Our customization options include:
Size and Shape
Diameter, length, and specific geometries for any cartridge heater element can be customized.
Wattage and Voltage
Precisely matched to your process requirements, from low to high wattage settings.
Material Selection
Offering a variety of sheath materials, such as stainless steel and Incoloy, to suit diverse operating conditions.
Lead Wire Type and Length
Adapting to various installation and electrical connection demands.
Integrated Sensors
Options for cartridge heater with built-in thermocouple or other sensors for seamless temperature monitoring.
Special Coatings and Surface Treatments
To enhance corrosion resistance or specific heat transfer properties.
Why Choose Our Industrial Cartridge Heaters
Our industrial cartridge heaters are built with advanced swaging, precision winding, and high-purity MgO filling to ensure maximum longevity and thermal efficiency.
Key Performance Advantages
Uniform temperature output
Fast heating rate
High insulation resistance
Extended lifespan
Tight tolerances (±0.02–0.05 mm)
High-temperature operation (up to 870°C with Incoloy sheath)
Material Options
Stainless steel cartridge heater – best for general industrial use
Incoloy cartridge heater – ideal for high-temperature and corrosive environments
Why Elekheat: Your Strategic Partner for Industrial Heating.
By choosing Elekheat, you gain:
- Unmatched Expertise: An engineering team with over 20 years of experience, deeply understanding diverse industry applications.
- Innovation-Driven Solutions: Continuous R&D investment ensures our heating cartridge solutions remain at the industry forefront.
- Exceptional Delivery & Responsiveness: We commit to responding to quotes within 24 hours and completing customized product manufacturing and delivery within a minimum of 15 days, minimizing your downtime.
- Global Efficiency: High-quality products, manufactured in China, are quickly and reliably delivered to leading enterprises in 38 countries worldwide.
- Comprehensive Quality Assurance: A rigorous quality management system ensures every electric cartridge heater complies with international certifications like UL and CE.
We have become the preferred partner for global clients, and we look forward to becoming your strategic partner.
I’m Jaxon, Head of Sales at ELEKHEAT. My team and I would love to meet with you to learn about your business, needs, and expectations.
Celia
Paul
Jessica
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Understanding Your Industrial Heating Cartridge: Key Parameters & Performance.
To assist you in making an informed decision, we offer a deep dive into critical cartridge heater parameters
Watt Density
This is the key differentiator between high-density cartridge heaters and low watt density cartridge heaters. High-density heaters provide faster heating and higher surface temperatures, suitable for molds and platens; low-density heaters are better for air and liquid heating, offering gentler, more uniform heat.
Temperature Accuracy
Our cartridge heater with thermocouple and advanced control systems allow for sub-degree temperature accuracy, often exceeding industry standards.
Durability
Through carefully selected materials and advanced manufacturing processes, our heating element cartridge exhibits excellent mechanical strength and corrosion resistance, ensuring long-term stable operation in harsh industrial environments.
Thermal Efficiency
Optimized internal construction and fill materials ensure heat is efficiently transferred to the heated body, reducing energy consumption.
Safety Features
All our resistive cartridge heaters comply with strict safety standards and can integrate over-temperature protection devices to ensure operational safety.
Cartridge Heaters FAQ & Technical Resources
A cartridge electrical heater is shaped cylindrically and typically used for heating metal dies, platens, liquids, or gases. It converts electrical energy into heat via a resistance wire, characterized by fast heating and precise temperature control.
Accurate cartridge heater wattage calculation requires considering the mass and material of the heated object, desired temperature rise, heating time, and heat loss. Our engineers can assist you with detailed calculations.
Cartridge heater installation is crucial, requiring a tight fit and good heat transfer. We provide detailed installation guidelines to prevent air gaps that can lead to premature failure.
High-density cartridge heaters refer to heaters with higher power output per unit area. They are typically used in applications requiring rapid, concentrated heating, such as mold heating.
Correct cartridge heater wiring diagrams and the use of a cartridge heater controller are key to safe and efficient operation. We provide wiring diagrams and professional temperature control system integration services, including options for cartridge heater with thermostat and external controllers.
The cartridge heater price varies based on customization level, materials, and volume. We are committed to providing the most cost-effective solutions; please contact us for a customized quote.
