| Customization: | Available |
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| After-sales Service: | Yes |
| Warranty: | 3 Month Warranty |
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Cartridge Heaters' General Construction
1. Heating coil
The heating coil is the actual resistance, where the electrical load occurs. The most common metal alloy used for this purpose is a nickel - chromium mixture, which also known as a Ni - Cr alloy. The Ni - Cr alloy wire is wound around a ceramic core, and the number of spirals per inch varies with the required watt density. The potential AC power supply can be 2 - phase or 3 - phase, heating the wire via flowing through the coil of nickel chrome wire, which in turn will heat the cartridge heater sheath.
2. Insulation
Insulation is used for preventing the Ni - Cr coil from touching the sheath. If this occurs, it will ground the resistance and may lead to a catastrophic short circuit, which will result in a sheath melting, even an equipment failure. The damage can be mitigated if fix the ground fault interrupt circuit. In order to keep the coil away from contacting the sheath, the coil is built in the sheath and at the same time filled with magnesium oxide. In order to ensure that the magnesium oxide fills the gap between the sheath and the coil, the cartridge heater is filled with vibration.
3. Sheath
The sheath is to build connect with the material or substance to be heated. According to the application conditions, metal alloys of several types can be used, such as highly acidic or corrosive conditions. The most common types of sheaths are 304SS/316SS/Incoloy800.
4.Sealing
Once the cartridge heater is been filled with magnesium oxide, the open end of the cartridge heater then need to be sealed. This prevents the coil and the magnesium oxide from coming out, as well as preventing contaminants such as plastic debris, air, or moisture from entering the heater.
5. Termination
The cartridge heaters are generally fixed in all kinds of machines, manufacturers must design the heaters to fill certain gaps. The cartridge heaters might be terminated with the straight leads, or in a right angle. Also, manufacturers need to pay attention that the leads cannot be exposed to the environment where the temperature is higher than the maximum rating for the lead wire. To avoid these conditions, the lead wire can be protected with a metal conduit, braided metal or silicone sleeves.
6.Lead wire type
Glass fiber is a common cartridge heater and other high temperature applications such as automotive wiring harness and industrial equipment. Other variants are silicone impregnated fiber glass and silicone rubber. This is a kind of wire.
7.Watt density.
| Item description | Cartridge Heater |
| Brand | Thermal International |
| Voltage | 12-380V |
| Power | 20W, 30W, 40W, 80W, 100W, 300W, 500W, 1000W |
| Pipe material | Stainless Steel 304,321,316,201, Incoloy800 |
| Pipe diameter | 3/4/8/10/12mm, can be customized. |
| Pipe length | 20-2000mm, can be customized. |
| Heating wire | Ni8Cr20 nickel chromium wire |
| Lead wire length | Can be customized |
| Lead wire material | Silicone glass fiber (temperature resistance 250°C) PTFE(temperature resistance 250C) High temperature glass fiber (temperature resistance 400°C) Ceramic beads (temperature resistant to 800oc) |
| Insulation | High-purity Mgo |
| Temperature | Max 750degree C |
| Application | Injection moulding - Internal heating of nozzles Hot runner systems - Heating of manifolds Packaging industry - Heating of cutting bars Packaging industry - Heating of hot stamps Laboratories - Heating of analytical equipment Medical: Dialysis, Sterilization, Blood Analyzer, Nebulizer, Blood/Fluid Warmer, Temperature Therapy Telecommunications: Deicing, Enclosure Heater Transportation: Oil/Block Heater, Aircraft Coffee Pot Heaters, Food Service: Steamers, Dish Washers, Industrial: Packaging Equipment, Hole Punches, Hot Stamp. |
| Features | Fast heating, high thermal efficiency, energy-saving, easy replacement. |
Our Strengths
- Experienced Team: Our team consists of highly skilled engineers and technicians with years of expertise in spare parts manufacturing.
- Global Reach: With a network of distributors and clients across over 20 countries, we ensure timely delivery and excellent after-sales service.
- Customer-Centric Approach: We focus on building lasting relationships by offering top-notch service, from initial consultation to after-sales support.
Thermal International is specialized in the production and processing of electric heating products and other spare parts, is equipped with a complete and scientific quality management system. Thermal International is recogonized by its integrity, strength and quality of products. Welcome friends from all walks of life to negotiate business. Thermal International has been focusing on the cultivation and introduction of talents for many years, and has a large number of high-quality engineering and technical personnel, therefore the company's products are high in science and technology content, which updates fast and enjoys a broad market.
Over the past ten years since its establishment, the company has accumulated rich experience in design and manufacture, with a number of outstanding scientific research personnel, advanced manufacturing and processing equipment, perfect testing system and complete after-sales service system. Our products of various specifications have been widely used in electrical, electronic, pharmaceutical, chemical and metallurgical fields, and have been trusted by users all over the world.
Products in the peer are leading, and establish a good corporate reputation, the company in line with professional quality, Excellence business philosophy, to provide customers with first-class products, first-class service. We are hoping to communicate with customers from all walks of life, seeking win-win development opportunity, and creating a brighter tomorrow!
Our Services:
• Your inquiry related to our product will be replied within 24hours.
• We're always well-prepared to answer your inquiries professionally.
• Working time: 8:00a.m. to 6:00p.m., From Monday to Friday.
• OEM is highly welcomed. We have strong R&D team here to help.
• Your business relationship with us will be confidential to any third party.
• Good after-sale service offered, please get back if you got question.
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