Bendable by hand in all three dimensions

hotflex / hotflex cs
Flexible Tubular Heaters

The hot­flex / hot­flex cs is the world’s first tubu­lar heater that can be bent freely by hand in all three di­men­sions. Sim­pli­fied han­dling, easy as­sem­bly, op­ti­mum ther­mal prop­er­ties and sim­pli­fied stock-keep­ing (the hot­flex / hot­flex cs is sup­plied stretched in nu­mer­ous lengths from stock) are the out­stand­ing prod­uct arguments.

The tubular heater hotflex can be bent freely by hand, is easily mounted and has optimal thermal properties.

hotflex / hotflex cs Flexible Tubular Heaters

The flexible tubular heater hotflex is used e.g. in contour heating and is available in round and square shape.

The three-di­men­sion­al bend­abil­i­ty of the hot­flex / hot­flex cs pro­vides de­sign­ers with a high de­gree of “ap­pli­ca­tion flex­i­bil­i­ty” com­pared to tra­di­tion­al heat­ing (e.g. with hotrod heat­ing car­tridges type HHP).

For ap­pli­ca­tions such as con­tour heat­ing, in ad­di­tion to the im­proved heat trans­fer, con­sid­er­able sav­ings can be achieved in terms of tool mass, spare parts pro­cure­ment and low­er en­er­gy con­sump­tion.

And this is pos­si­ble in both round (Ø 6.5 mm and 8.5 mm) and square (6 x 6 mm and 8 x 8 mm) shapes.

Stock Range

You can view our wide range of bear­ings in our brochure in the down­load area (start­ing on page 4). Please en­quire about our stock range us­ing our stan­dard in­quiry form.

hotflex / hotflex cs
Extension Factors

De­pend­ing on the num­ber of bend­ing radii, the hot­flex / hot­flex cs be­comes longer when bend­ing and press­ing in. For a more pre­cise cal­cu­la­tion of the stretch­ing you can use our template.

A successful product finds imitators

In some coun­tries there are al­ready man­u­fac­tur­ers who try to copy our hot­flex.

To en­sure that you have re­ceived and are us­ing orig­i­nal hotset heaters, we have put to­geth­er some tips to help you dis­tin­guish our hot­flex from oth­er prod­ucts that claim to be a hotset hotflex.

Identify an Original hotflex from hotset:

Hot­flex heaters are marked with our name “hotset”, with the elec­tri­cal volt­age and pow­er. Pro­duc­tion da­ta can be traced via an ad­di­tion­al number.

Each heater is marked with “CE”

The sur­face of a hot­flex is made of stain­less steel. It is com­plete­ly closed. There is no brass, cop­per, met­al braid, met­al link tub­ing or sim­i­lar vari­a­tions on the outside.

The stain­less steel cov­er is com­plete­ly closed and with­out in­ter­rup­tions. It looks some­what like rings joined to­geth­er. These are not spi­rals, but closed rings, see the picture.

Since the heater is high­ly com­pressed, the jack­et can not move and de­tach from the heater.

Al­though the hot­flex is high­ly com­pressed and made of stain­less steel, it can be eas­i­ly bent by hand – with­out much force or even spe­cial tools. This is one of the unique ad­van­tages due to the patent­ed man­u­fac­tur­ing process that our cus­tomers ap­pre­ci­ate over oth­er heat­ing elements.

Why use the original?

Qual­i­ty and safe­ty – tem­per­a­ture makes the dif­fer­ence

Some oth­er so-called “flex­i­ble heat­ing el­e­ments” of­fer suf­fi­cient elec­tri­cal val­ues when cold. How­ev­er, when heat­ing up, the raw ma­te­r­i­al used, the man­u­fac­tur­ing tech­nol­o­gy and the over­all qual­i­ty then de­ter­mine the elec­tri­cal safe­ty of the heat­ing element.

The hot­flex achieves its ex­cel­lent heat trans­fer due to its high den­si­ty na­ture and patent­ed tech­nol­o­gy. You can achieve per­fect heat trans­fer for round and square hot­flex by fol­low­ing our rec­om­mend­ed groove geom­e­try. For ex­am­ple, with a groove width of 8.2 mm for a hot­flex with a di­am­e­ter of 8.5 mm, the heater de­forms and com­press­es dur­ing in­stal­la­tion in such a way that there is hard­ly any space for air gaps and the heater sur­face con­tacts the mold from one groove edge to the oth­er with pressure.

The il­lus­tra­tion shows the hot­flex dri­ven in with a plas­tic ham­mer — with­out hy­draulic press­ing or oth­er post-processing.

This means for you:

  • Ex­cel­lent heat transfer
  • Re­li­a­bil­i­ty
  • Short heat-up times

The hot­flex is de­vel­oped and man­u­fac­tured ac­cord­ing to Ger­man and Eu­ro­pean stan­dards and laws. This means high re­li­a­bil­i­ty and safe­ty for you and your em­ploy­ees – mean­ing for example:

  • High volt­age resistance
  • Iso­la­tion resistance
  • Leak­age current

What does this mean? 

In the event of an elec­tri­cal de­fect on a ma­chine, a poor qual­i­ty heater can cause elec­tri­cal volt­ages on the ma­chine surface.

This can be­come a haz­ard to the health and life of your em­ploy­ees. An elec­tri­cal de­fect could oc­cur on any ma­chine, es­pe­cial­ly if parts move or tem­per­a­ture changes occur.

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