Conical and cylindrical coiled half tubes from the manufacturer

Half Tube coils

Coiled half tubes at their best: what we manufacture not only fits perfectly, but also takes your products to a whole new level of performance.

More details Get in touch now
Zylindrische Halbrohrschlangen vom Hersteller Karl Theis

Benefits of half tube coils direct from the manufacturer

Always on a roll: your benefits with Karl Theis

In any length

100 metres without a single transverse weld? We’ll deliver that without any problem, and gladly.

In any sizes

A good manufacturer of coiled half tubes will find the right solution – regardless of whether your component is to be half a metre or 5 metres long.

With any weight

Even that won’t stop us: we have already processed workpieces weighing 10 tonnes each.

With any material

Of course, this also applies to specialised materials: titanium or exotic alloys are no problem for us.

Conical & cylindrical coiled half tube

Bend'n'Roll: Technical Specifications

To ensure your planning is spot on, right down to the smallest detail, you’ll find our technical specifications here. Need more information? Please feel free to contact us.

Conical bent half-tube coils
Dimensions 33.7 mm
48.3 mm
60.3 mm
76.1 mm
88.9 mm
114.3 mm
Wall thickness 2.0–6.0 mm
Types of execution 180° segments as loose version or tack-welded onto dished ends/cones and vessels
Special solutions Through in-house tool making, special solutions/custom-made products can also be produced to customer requirements
Welding preparation None
Longitudinal edges 45° (inside/outside)
Individually on request
Cylindrically bent half tube coils
Dimensions 33.7 mm
48.3 mm
60.3 mm
76.1 mm
88.9 mm
114.3 mm
139.7 mm
Special profiles 114.3 mm (reduced height, 28 mm outer profile height)
100 / 30 mm
142 / 42 mm
Others on request
Wall thickness 2.0–6.0 mm
Production lengths up to max. 100 m without transverse joint
Special solutions Through in-house tool making, special solutions/custom-made products can also be produced to customer requirements
Welding preparation None
Longitudinal edges 45° (inside/outside)
Individually on request

Advice on half tube coils directly from the manufacturer

Stainless steel or exotic
alloys – we make anything
possible.
If you have any questions about our products or the feasibility of specific components, please feel free to contact me at any time.
Karl Theis Mitarbeiterin Judy al Sherfawi
Judy Al Sherfawi

This is how we, as manufacturers, produce half-tube coils

This is how we roll

The journey to your half-tube coil begins with pure precision: the chamfering and profiling of slit strips on our specially developed machinery. To minimise your assembly times, we supply the profiles on request with precisely prepared weld edges (or already professionally tack-welded to your vessel bases and cones).

The journey continues with the utmost care: we continuously adjust the diameter and pitch, mark every component for complete traceability and pack everything exactly to your specifications.

What do you receive? A component that has been 100% thought through. Particularly with conical shapes, we place great importance on absolute cleanliness inside the component and, on request, offer professional tack welding using the TIG welding process to make your final assembly easier.

Thanks to our in-house tool making, we can flexibly produce even the most complex custom-made products and individual geometries for you.

Mitarbeiter arbeiten zusammen an der Produktion von Halbrohren aus Stahl in der Fertigung

Applications where our coiled half tubes really come into their own

Keep it rolling: In these sectors

Whether it’s paints, medicines, beer, chocolate or ketchup: our coiled half tubes help ensure safe operations in industries critical to the economy.

Chemicals and petrochemicals

Reliable heat supply and removal in complex process vessels and reactors

Pharmaceutical industry

The highest levels of purity and precision for the production of essential medicines and sensitive active ingredients

Food industry

Optimal temperature control in the production of everyday essentials

Tank & apparatus construction

Bespoke solutions for complex process reactors or storage tanks with diameters of up to 13 metres

Special applications

From the exclusive bar on a cruise ship to sturdy feeding troughs in modern agriculture

Facts about our half tube coils

When it comes to half tubes, we give it our all.

Behind every metre of tube lies our passion for metal and our ambition to make the impossible possible for every customer.

2,500
kilometres – as far as from Siegen to Marrakesh. That’s how much cylindrical half tube has already left our production line.
>
10
metres: In extreme cases, our components can reach this impressive diameter whilst weighing up to 10 tonnes.
100
metres of coiled half tube can be made without a single transverse weld, ensuring maximum stability.
We don’t bend the truth.
Are you looking for honest, transparent advice?
Please feel free to get in touch with us at any time. We are here to support you with our decades of expertise and creative problem-solving.“ anstatt „our expertise, honed over decades, and our creative approach to finding solutions.
Porträt von unserer langjährigen Mitarbeiterin Francesca Wünsch (Vertrieb)