{"id":8337,"date":"2025-02-26T08:08:48","date_gmt":"2025-02-26T08:08:48","guid":{"rendered":"https:\/\/www.rotfil.eu\/cartridge-heaters\/"},"modified":"2026-09-03T13:34:10","modified_gmt":"2026-09-03T13:34:10","slug":"cartridge-heaters","status":"publish","type":"page","link":"https:\/\/www.rotfil.eu\/en\/cartridge-heaters\/","title":{"rendered":"Cartridge heaters"},"content":{"rendered":"

CARTRIDGE HEATERS<\/h2>\n

Rotfil cartridge heaters are compact and long-life elements, capable of delivering the best performance in heating surfaces, liquids, and gas. Due to their versatility, they can be applied in a wide range of industries.<\/p>\n

Among our products, you will find certified solutions that can be customized in any way. We offer different elements according to different application needs, so that through our manufacturing know-how, we can serve any need through our solutions.<\/p>\n

Below you can consult any kind of cartridge heaters, all of our production. You will find high, extra-high, middle and low watt density cartridge heaters and low voltage cartridge heaters.<\/p>\n

At the end of the page, you can consult some of our realizations, the FAQ section and our catalog, to find out any stock element (more than 10.000), customization option and technical features.<\/p>\n

Contact us to discover the best solution for your heating needs.<\/p>\n<\/div>

CUSTOMIZATION<\/h3>\n<\/div>

Rotfil solutions are widely customizable, depending on the specific need.<\/p>\n

They are equippable with J\/K thermocouple and customizable with many cable protection, sealings, electric terminals, threads, flanges and special accessories (also on request).<\/p>\n

They are also available with a 90\u00b0 shape (+ accessories), with indidivual temperature zone control, and\/or with differentiated power.<\/p>\n<\/div>

Swipe the following images to consult some of our customization options:<\/p>\n<\/div>

\"Cartridge<\/div>

Flexible cables<\/p><\/div><\/div><\/div><\/div>

\"Cartridge<\/div>

Protected cables | flexible tube | metal braid<\/p><\/div><\/div><\/div><\/div>

\"Cartridge<\/div>

Bushing<\/p><\/div><\/div><\/div><\/div>

\"Cartridge<\/div>

Insulated cables for high temperatures<\/p><\/div><\/div><\/div><\/div>

\"Cartridge<\/div>

Solid wires<\/p><\/div><\/div><\/div><\/div>

\"Cartridge<\/div>

Sealed cartridge heaters<\/p><\/div><\/div><\/div><\/div>

\"Electric<\/div>

Threaded fittings<\/p><\/div><\/div><\/div><\/div>

\"Cartridge<\/div>

90\u00b0 bent and protected cables<\/p><\/div><\/div><\/div><\/div>

\"Cartridge<\/div>

Flanges<\/p><\/div><\/div><\/div><\/div>

\"Cartridge<\/div>

Cubic block head<\/p><\/div><\/div><\/div><\/div>

\"Curved<\/div>

Curved and side cable fittings | Unheated part<\/p><\/div><\/div><\/div><\/div>

\"Cartridge<\/div>

Zones with differentiated temperature<\/p><\/div><\/div><\/div><\/div>

\"Cartridge<\/div>

Double power supply<\/p><\/div><\/div><\/div><\/div>

\"Cartridge<\/div>

Waterproof head sleeve<\/p><\/div><\/div><\/div><\/div>

\"Cartridge<\/div>

Some additional configuration options<\/p><\/div><\/div><\/div><\/div><\/div>

<\/i><\/div>
<\/i><\/div><\/div><\/div><\/div><\/div>

CARTRIDGE HEATERS | BUILT-IN THERMOCOUPLE<\/p>\n<\/div>

\"Cartridge<\/div>

CARTRIDGE HEATERS WITH THERMOCOUPLE | UTC1 (grounded thermocouple junction on the base)<\/p><\/div><\/div><\/div><\/div>

\"Cartridge<\/div>

CARTRIDGE HEATERS WITH THERMOCOUPLE | UTC2 (insulated thermocouple junction on the base)<\/p><\/div><\/div><\/div><\/div>

\"Cartridge<\/div>

CARTRIDGE HEATERS WITH THERMOCOUPLE | UTC3 (grounded thermocouple junction on the tube in the middle of the cartridge)<\/p><\/div><\/div><\/div><\/div>

\"Cartridge<\/div>

CARTRIDGE HEATER WITH THERMOCOUPLE | UTC4 (insulated thermocouple junction in the middle of the cartridge)<\/p><\/div><\/div><\/div><\/div><\/div>

<\/i><\/div>
<\/i><\/div><\/div><\/div>

We can manufacture cartridge heaters with built-in thermocouple, for any application that requires a precise and immediate temperature control. Our cartridges Ultramax, are CE+Ul certified both with and without thermocouple.<\/p>\n

In addition, we have a stock program for cartridge heaters with thermocouples.<\/p>\n<\/div><\/div><\/div>

CUSTOM SHAPED CARTRIDGE HEATERS<\/p>\n<\/div>

\"Shaped<\/div>

Bent cartridge heaters | Round shape<\/p><\/div><\/div><\/div><\/div>

\"BENT<\/div>

Bent cartridge heaters | Round custom shaped <\/p><\/div><\/div><\/div><\/div>

\"Shaped<\/div>

Bent cartridge heaters | Square custom shaped<\/p><\/div><\/div><\/div><\/div><\/div>

<\/i><\/div>
<\/i><\/div><\/div><\/div>

You can consult some examples of our custom-bent cartridge heaters. We can manufacture any shape for any application need.<\/p>\n

Round, square and more shapes to mantain high-efficiency and quality during the application.<\/p>\n<\/div><\/div><\/div>

QUALITY<\/h3>\n<\/div><\/div><\/div>

Rotfil is ISO9000 certified since 1996. ULTRAMAX cartridge heaters, both with or without thermocouple, are CE, UL certificated.<\/p>\n

Download the following certificates as needed.<\/p>\n

ISO9001_ ROTFIL_ENG<\/a><\/p>\n

UL – ULTRAMAX WITH THERMOCOUPLE<\/a><\/p>\n

UL – ULTRAMAX WITHOUT THERMOCOUPLE<\/a><\/p>\n<\/div><\/div><\/div>

Our total quality management policy, <\/em>allows to any Rotfil product to have a conscious and controlled quality, thanks to 50 years of work in the sector.<\/p>\n

Our cartridge heaters possess an excellent thermal efficiency, stress-condition resistance, application versatility and easy installation. Also due to these reasons, they are the best solution for your heating problems.<\/p>\n<\/div><\/div><\/div><\/div>

OUR SOLUTIONS:<\/h3>\n<\/div><\/div><\/div>

ULTRAMAX – HIGH WATT DENSITY CARTRIDGE HEATERS<\/h3>\n<\/div>

Rotfil has been the first firm in Italy to produce high watt density cartridge heaters, in 1977. Nowadays, almost 50 years later, Ultramax\u00a0 is a pluri-certified solution (CE+UL; both with\/without built-in thermocouple), flagship of the electric heating sector.<\/p>\n

Thanks to our\u00a0know-how<\/em> we are able to customize your cartridge heater, Ultramax in particular, to fit any application and with any accessories (kindly consult our catalog) with high and reliable performance.<\/p>\n

With us, you will find an expert engineering team, specialized in the sector and ready to solve your requests.<\/p>\n

Download our catalog or contact us to consult all our stock elements (more than 10.000), and to find out more about this pluri-certified solution.<\/p>\n<\/div><\/div><\/div>

NORMAX- LOW WATT DENSITY CARTRIDGE HEATERS<\/h3>\n<\/div>

With a maximum operating temperature of 400\u00b0 C and a 7 W\/cm\u00b2<\/strong> maximum specific power, there heaters are particularly useful when a low operative power is needed.<\/p>\n

Normax heaters can be built in many diameters, powwers and lengh\u00ecths, with multi-circuit voltage, differentiated power and with all the accessories available for Ultramax heaters (kindly consult the catalog).<\/p>\n<\/div><\/div><\/div>

SUPERMAX – MIDDLE WATT DENSITY CARTRIDGE HEATERS<\/h3>\n<\/div>

Thanks to their simple but efficient<\/strong> structure, Supermax heaters can be bent in any shape requested by their application.<\/p>\n

With a 400\u00b0 C<\/strong> maximum operative temperature and a 8 W\/cm\u00b2<\/strong> maximum specific power, they can be equipped with thermocouples, separated power supplies, 90\u00b0 cable outlets and all the accessories equippable on Ultramax heaters (kindly consult the catalog).<\/p>\n<\/div><\/div><\/div>

IPERMAX – EXTRA HIGH WATT DENSITY CARTRIDGE HEATERS<\/h3>\n<\/div>

Completely born in Rotfil laboratories, <\/strong>Ipermaxes work up to 100W\/cm\u00b2 <\/strong>and up to 1000\u00b0 C.<\/strong><\/p>\n

Thanks to their internal design, they can be bent<\/strong> in many shapes, depending on the application.<\/p>\n

This heaters are essential for that applications where Ultramax performance are not enough regarding the power.<\/p>\n<\/div><\/div><\/div>

MICROMAX – LOW VOLTAGE CARTRIDGE HEATERS<\/h3>\n<\/div>

This heater is built to be used exclusively with a supply voltage of less than<\/strong> 48V.<\/strong><\/em><\/p>\n

Maximum operative temperature: 600\u00b0 C<\/strong>; maximum specific power: 20W\/cm\u00b2<\/strong>.<\/p>\n

We can manufacture heaters with custom <\/strong>length, diameter and power.<\/p>\n<\/div><\/div><\/div><\/div>

SOME OF OUR REALIZATIONS<\/h3>\n<\/div>
\"example<\/div><\/div><\/div>
\"Demo<\/div><\/div><\/div>
\"Example<\/div><\/div><\/div>
\"Demo<\/div><\/div><\/div>
\"Cartridge<\/div><\/div><\/div>
\"PTC<\/div><\/div><\/div>
\"Custom<\/div><\/div><\/div>
\"Cartridge<\/div><\/div><\/div>
\"Cartridge<\/div><\/div><\/div>
\"Cartridge<\/div><\/div><\/div><\/div>
<\/i><\/div>
<\/i><\/div><\/div><\/div><\/div><\/div><\/div>

CARTRIDGE HEATERS<\/a>\"\"<\/a><\/p>\n<\/div>

FAQ: frequently asked questions about Cartridge Heaters<\/h3>\n<\/div>

<\/i><\/i><\/span>1. Which certifications do Rotfil cartridge heaters have?<\/span><\/a><\/h4><\/div>
\n

Below are the certifications for our cartridge heaters. You can download the official documents from the dedicated page.<\/p>\n