Industrial electric resistance single end rod cartridge tubular heater for molding is a specialized heating element designed for applications in plastic molding machines. These heaters are used to heat molds, ensuring the proper melting and shaping of plastic materials during the molding process. These ndustrial electric resistance single end rod cartridge tubular heaters have a single rod at one end, which is typically inserted into the mold. The other end is sealed, making them suitable for applications where heat is required at a specific point.The sheath, which encases the heating element, can be made from different materials such as stainless steel, brass, or other alloys. The choice of sheath material depends on the specific molding application and the compatibility with the molding material.


Sheath material | SS304.321.316L,Incoloy800.840,Titanium |
Insulation material | High-purity MgO |
Resistance | Ni-Cr or FeCr |
Maximum voltage | 480VAC |
Wattage density | high/middle/low(5-40w/cm2) |
Wattage tolerances | toloerance :+5% -10% |
Dimensional | Diameter: Min. dia:3mm |
Length: | Customized |
Lead options | Crimped- on / Swaged- in |
Lead types | Swage fiberglass insulation nickel wire ( 750°C ) |
Crimp line ( 250°C ) Crimp | |
silicon insulated wire ( 200°C ) | |
Crimp fiberglass insulation nickel wire ( 450°C ) | |
Internal | Type J or K available thermocouple |
Lead protection options | Stainless steel braid |
Stainless steel flexible hose | |
other options | Bent heaters, in no-heat section, up to 90° angle |
mounting flange |




1-High-Quality Resistance Wire: The heating element contains a resistance wire that generates heat when an electric current passes through it. High-quality materials ensure efficient heat generation and durability.
2-Watt Density Control: These heaters can be designed with different watt densities, allowing for precise control over the heat output. Watt density is the amount of power per unit area of the heating element's surface.
3-Quick Heating and Cooling: Cartridge heaters can reach high temperatures quickly, allowing for fast heating of the mold. They can also cool down relatively quickly after the molding process is completed.

1-Plastic Molding: These heaters are specifically designed for plastic molding applications. They are used in injection molding machines, blow molding machines, and other types of molding equipment to heat molds. The heat softens the plastic material, allowing it to take the shape of the mold cavity.
2-Rubber Molding: Cartridge heaters can also be used in rubber molding processes, where rubber materials are heated and molded into various shapes.
3-Blow Molding: Used in blow molding machines to heat the molds for creating hollow plastic objects, such as bottles and containers.

How to install cartridge heater:
1. make a hole in the section that is to be heated
2. ream a smooth hole for contact and for better heat transfer
3. extend the hole through the section so that the unit can be driven out if you should need to remover it.
4. if making a through hole is impossible ,increase the size of the hole without exceeding the tolerances
5. Reduce the vibration and flexing of the lead wires to prolong service life
6. prevent contamination from liquids by protecting the end of the heater
When ordering Cartridge Heaters, please specify the following information :
1. Type of Cartridge Heater.(please refer to Termination Options)
2. Diameter of Cartridge Heater.
3. Overall length for a straight Cartridge Heaters.
4. Wattage & Voltage
5. Lead type(glass fibre / PTFE) & lead length.
Type of Cartridge Heaters:

Quality Control Chart:

Transport and Payment:

FAQ
(1). Q: Can you give me a discount price?
A: It is depending on the quantity. The larger the quantity is, the more discount you can enjoy.
(2). Q: How can I get a sample?
A: Normally For most our products can be sent free of sample charge if the quantity is small and customers only need to bear the shipping charge, or you can provide your DHL,FEDEX,EMS,UPS courier account number to us. If the quantity is big, we need to charge a sample fee.
(3). Q: Why does your price a bit higher than other Chinese suppliers?
A: We are focusing on manufacuturing high quality performance products in order to establish a long term and friendly cooperation with all customers.
Our price maybe not the lowest, but our cost performance is the highest.
(4). Q: How can you guarantee the quality of mass production keep the same with the sample sent to me before?
A: Our warehouse staff will leave another same sample with your company name marked in our company before sending the samples to you to ensure the same production as the samples.