High-Density Cartridge Heaters
Our High-Density Cartridge Heater can be considered a “Component Heater” that is used to heat many different applications. Primarily used in molds, dies & sealing bars, this Cartridge Heating Element fits snugly inside a cavity and helps heat solids by reaching high temperatures. High-Density Cartridge Heater has the versatility of being able to carry a thermocouple inside to help control the temperatures of the heater more accurately. Various diameters allow for the Cartridge Heating Element to be used in any cavity and can be custom-designed with any cold section. Lead wires extend from the end to your controls.
Ordering Information
- TUBE DIA – 6MM – 25MM
- TUBE LENGTH – 40MM AND ABOVE
- TUBE MOC – SS / BRASS / COPPER / INCOLOY
- INBUILT THERMOCOUPLE REQUIREMENT
- CABLE LENGTH
- CABLE TYPE
- TERMINATION OPTION
- WATTAGE & VOLTAGE
Applications
Low & Medium Density Cartridge Heaters
Our Low & Medium Density Cartridge Heater is developed for heating applications not requiring high watt densities and sheath temperatures not exceeding 300°C. These Cartridge Heating Elements are designed in maximum watt densities of 30 to 45 watts per square inch depending on applications. Such Cartridge Heating Elements of various sheath diameters can be used in any assembly, equipment, or machine. The Low & Medium Density Cartridge Heater can be customized to suit customer’s needs. Such Cartridge Heating Elements can be an economical option for customers not require high process temperatures.
Ordering Information
- INSIDE DIAMETER
- LENGTH OF HEATER
- OPERATING VOLTAGE
- WATTAGE
- THERMOCOUPLE HOLE
- TERMINATION & CLAMPING STYLE
- LEAD LENGTH
Applications
Cartridge heater manufacturer in Pune
Thermosys Heating Systems Pvt. Ltd. designs and manufactures high-density and low/medium-density cartridge heaters at our works in Narhe, Pune. Every heater is built to order – your diameter, length, wattage, voltage, cold zones, lead type and thermocouple position – so it fits your mould, die or sealing bar exactly.
What we offer
- Diameters from 6 mm to 25 mm, lengths from 40 mm upwards
- Sheath materials: stainless steel, brass, copper and Incoloy
- High-density construction, compacted on rolling and swaging machines, for moulds, dies and hot runners
- Low and medium density heaters for sheath temperatures up to 300 °C (30–45 W/in²)
- Built-in J or K type thermocouple on request
- Choice of lead wire, cable type, length and termination
Where cartridge heaters are used
Plastic and rubber moulds, die-casting dies, packaging machine sealing jaws, hot stamping, paper industry rollers, laboratory equipment and any application where a solid metal block must be heated from inside.
Frequently asked questions
How do I choose the right watt density?
The hotter the process and the looser the fit in the hole, the lower the watt density should be. Share your operating temperature and hole size and we will recommend a safe rating. Our guide How to choose the right cartridge heater explains this in detail.
Why do cartridge heaters fail early?
The most common causes are a loose fit in the hole, too high a watt density, moisture or oil entering the lead end, and lead wires flexing in moving tools. Read 7 common causes of cartridge heater failure or tell us how your old heater failed.
Can you match my existing heater?
Yes. Send a photo or drawing with diameter, length, wattage and voltage, or send the old heater, and we will manufacture an equivalent.