High-Density Cartridge Heater
High-Density Cartridge Heater is designed for rapid heating, high heat transfer, and demanding industrial applications where high power output is required in a compact heating element. Its higher watt density provides faster heat-up and concentrated heating in close-fit installations.
Our high-watt-density cartridge heaters are available in standard stock sizes and can also be custom-made according to your required diameter, heated length, voltage, power, and watt density.
The material of a cartridge heater also affects heat transfer, operating temperature, and service life. Learn more about
cartridge heater materials
and how material selection affects heater performance.
For general industrial heating applications, see our
Standard Cartridge Heater.
For compact equipment with limited installation space, our
Miniature / Micro Cartridge Heater
is another suitable option.
Product Specifications
| Item | Specification |
|---|---|
| Product Type | High-Density Cartridge Heater |
| Outer Diameter | 6mm–20mm standard range, custom sizes available |
| Heated Length | Custom-made according to application requirements |
| Voltage | 12V–480V, common 220V / 380V |
| Power | Custom-made according to diameter and heated length |
| Watt Density | 18–35 W/cm², depending on design and application |
| Sheath Material | SUS304 / SUS321 / SUS316L / Inconel 600 |
| Insulation | High-purity Magnesium Oxide (MgO) |
| Lead Wire | High-temperature fiberglass wire / silicone wire / metal braided sleeve |
| Maximum Working Temperature | Up to 760°C depending on heater construction and sheath material |
Heating Performance
Our high-watt-density cartridge heating elements provide approximately 18–35 W/cm², allowing faster heat-up and concentrated heating compared with general-purpose cartridge heaters.
The appropriate watt density depends on heater diameter, heated length, bore fit, material being heated, heat dissipation, and operating conditions. Higher watt density is not always better; the heater should be matched to the application.
- Rapid temperature rise
- High power output in a compact heating element
- Suitable for close-fit metal bore installations
- Designed for demanding short-cycle heating applications
- High-purity MgO insulation for efficient heat transfer
- Custom watt density according to application requirements
Stock Sizes
The following sizes are available as standard stock models. Custom voltage, power, diameter, and heated length are also available.
| Diameter (mm) | Heated Length (mm) | Voltage | Power (W) | Watt Density (W/cm²) | Stock Status |
|---|---|---|---|---|---|
| Φ6 | 60 | 220V | 220 | 19.5 | Stock |
| Φ6 | 80 | 220V | 280 | 18.5 | Stock |
| Φ8 | 80 | 220V | 380 | 18.8 | Stock |
| Φ8 | 100 | 220V | 480 | 19.1 | Stock |
| Φ8 | 120 | 220V | 580 | 19.2 | Stock |
| Φ10 | 100 | 220V | 600 | 19.1 | Stock |
| Φ10 | 120 | 220V | 750 | 19.8 | Stock |
| Φ10 | 150 | 220V | 900 | 19.1 | Stock |
| Φ12 | 100 | 220V | 850 | 22.5 | Stock |
| Φ12 | 120 | 220V | 1000 | 22.1 | Stock |
| Φ12 | 150 | 220V | 1200 | 21.2 | Stock |
| Φ12 | 200 | 220V | 1450 | 19.2 | Stock |
| Φ16 | 150 | 220V | 1600 | 19.8 | Stock |
| Φ16 | 200 | 220V | 2100 | 20.8 | Stock |
Custom High-Power Cartridge Heating Elements
In addition to stock sizes, we manufacture custom high-power cartridge heating elements according to customer drawings, samples, or application requirements.
- Custom outer diameter
- Custom heated length and overall length
- Custom voltage and power
- Custom watt density
- Straight or special lead-out configurations
- SUS304 / SUS321 / SUS316L / Inconel 600 sheath options
- Custom lead-wire length and wire type
Send us your required diameter, heated length, voltage, and power for a custom quotation.
Applications
High-power cartridge heating elements are commonly used where rapid localized heating and high heat output are required.
- Hot runner nozzles and hot runner mold systems
- High-speed injection molds and precision mold inserts
- Die-casting nozzles and hot stamping tools
- Heat-sealing jaws and high-speed packaging machinery
- Plastic extruder local heating
- Short-cycle rapid heating equipment
- Automation machinery requiring fast temperature rise
- Test fixtures and laboratory rapid-heating blocks
FAQ
Q: What is the maximum watt density?
A: Depending on the heater design and operating conditions, our high-watt-density cartridge heaters can reach approximately 35 W/cm². The recommended watt density should be selected according to bore fit, material being heated, heat dissipation, and operating conditions.
Q: Do you have these heaters in stock?
A: Yes. We keep a range of common diameter, length, voltage, and power combinations in stock. Please check the stock table above or contact us for current availability.
Q: Can you manufacture custom sizes?
A: Yes. We support OEM customization based on drawings, samples, or your required diameter, heated length, voltage, and power.
Q: What applications are suitable for high-watt-density heating elements?
A: They are commonly used in hot runner systems, injection molds, die-casting nozzles, heat-sealing equipment, packaging machinery, and other applications requiring rapid localized heating.
Related Cartridge Heater Products
If you need to compare different cartridge heater designs, visit our main
Cartridge Heater
product page for the complete product range and available configurations.
For general-purpose heating requirements, see the
Standard Cartridge Heater.
For compact heating spaces, consider the
Miniature / Micro Cartridge Heater.
Request a Quote
Need stock sizes or a custom heater? Contact our sales team directly.
Please send your required diameter, heated length, voltage, power, and quantity.
Amy – Sales
Email:
amy-easewise@tzheater.com
WhatsApp:
+86 188 8318 8154
Hanna – Sales
Email:
hanna-easewise@tzheater.com
WhatsApp:
+86 178 5163 6811
Stock available. Custom sizes supported. Contact us for pricing, availability, and OEM production.
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