Tubular heaters · tubular resistance · sheathed elements
Tubular heating elements
A tubular heating element – also called a tubular heater, sheathed element or tubular resistance – is a resistance wire embedded in high-purity magnesium oxide inside a metal tube, compacted by rolling and bent to shape. BALÇIK TORMEC has designed and manufactured tubular heating elements in Ankara since 1959 for appliance and equipment OEMs in more than 60 countries.
Construction
What a tubular heating element is made of
Every part is chosen for the temperature, medium and humidity of the application.
| Part | Options |
|---|---|
| Sheath | AISI 304, 316L, 321, Incoloy® 800 and 825, copper; nickel-diffusion coated stainless |
| Insulation | High-purity MgO, compacted by rolling |
| Resistance wire | NiCr and FeCrAl alloys by temperature class |
| Sealing | STF, silicone, epoxy, PTFE bead, ceramic |
| Terminals and mounting | 6.3 mm tabs, M4–M6 studs, leads; flanges Ø48–Ø180 mm, nipples, brackets |
Range
Series range
| Parameter | Typical range |
|---|---|
| Sheath diameter | 6.0 – 16 mm |
| Voltage | 12 – 480 V, single- and three-phase |
| Power tolerance | +5 % / −10 % (EN 60335-1) |
| Forms | Straight, U/hairpin, W/serpentine, rings, spirals, finned, three-dimensional |
| Testing | 100 % dielectric strength, insulation resistance, resistance/power |
Applications
Where our tubular heaters work
Ovens and cookers
Bake, grill and fan-oven ring elements.
Oven elementsWashing machines
Flange elements with NTC pocket and Thermofuse option.
Washing machine elementsWater heating
Instantaneous and storage heaters, boilers, towel radiators.
Liquid heatingSmall appliances
Grills, toasters, mini ovens, irons, kettles.
Small appliancesProfessional and industrial
Fryers, bain-marie, boilers, process heating.
Professional kitchenFinned and defrost
Air heating, heat pumps, evaporator defrost.
Finned elementsFrequently asked questions
Short, direct answers.
What is a tubular heating element?
A resistance wire insulated by compacted MgO inside a metal sheath, bent to the required shape. It is also called a tubular heater, sheathed element or tubular resistance.
Tubular heater vs. tubular resistance – is there a difference?
No. Both terms describe the same sheathed electric heating element; 'tubular resistance' is common in Turkish- and Italian-English usage.
Which sheath material should I choose?
It depends on the medium and sheath temperature: Incoloy® 800 or AISI 321 for radiant oven duty, AISI 316L or nickel-diffusion coated stainless for detergent water, nickel-plated copper for soft water.
What certifications does BALÇIK TORMEC hold?
ISO 9001:2015 since 2001 (Bureau Veritas) and VDE marks approvals to DIN EN 60335-1 for certified element families since 2009. RoHS and REACH declarations are available.
How fast can you deliver samples?
Functional samples typically 2–4 weeks after drawing approval; derivatives of existing designs are faster.
Quotation
Have a drawing, a sample or just a requirement?
Share application, power, voltage and quantity, attach a drawing or photo. We confirm receipt; the responsible engineer or sales manager answers as soon as the technical details are clear.