| 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.
Since 2010, Thermal International has been engaged in the development, design, production and sales in one of the sales of industrial electric heating technology company, based on the customers' specific needs, aiming at providing the customized/tailored solution of design, committed to the electric heating and temperature measurement in the field of development, constantly pursuing for technological value-added products,promote industry technology progress, Thermal International brand products have been exported to South Africa, Turkey, South Korea, USA and some other mainstream cities. In addition, we Thermal International has also set our sales representatives in some of the major countries.
FAQ:
1.Are you a factory or a trading company?
A: We're an experienced factory with our exclussive Research & Development team. Offering you the most professional service.
2.Will you accept customized requirement?
A: Of course, customized service is surely acceptable. Welcome to send us your drawing andmore detailed specification parameters. We can supply you the products as per your specificrequirements.
3.Could l get some sample?
A: Yes, generally,1pc sample for free is available. But if you need more samples, we mayneed to charge you some cost. Besides, for certain products, it may need to open moldbefore sampling, then we shall need to have the mold fee before sample.
4. What's the delivery time for sample?
A: Generally it shall take 5~7days. For certain products, we need to prepare the materials for it. That depends.
5. What do you generally do in regarding to the products' quality control?
A: We always put much emphasis on products quality. That's the priority. We shall contactstrict quality inspection towards the products before delivery. And we've obtained the VDE,CE, UL, ISO and so forth.
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