Mandrels and forming tools

3D bending of mandrels and bars
CNC and NC machine park

Precise 3D CNC bending of mandrels and production of forming mandrels

HolmTec company stainless steel forming tools and madrels for vulcanizing hoses are mainly used in the automotive industry.
Stainless steel mandrels,calibres and forming tools are bend according to the specified coordinates on ours CNC and NC machines.

Bending and the appropriate tools

The advantage is that we have a large number of bending sets, rollers, attachments, trowels and mandrels, so you can avoid expensive tooling.

Materials of mandrels and mandrel forming tools

stainless steel W.Nr.1.4301
stainless steel W.Nr.1.4305
stainless steel W.Nr. 1.4401
aluminum alloys, tool steel

Production of stainless steel mandrels for the vulcanization of hoses

Forming tools and their design

Mandrels with calibration plugs defining the required hose length
Spring stainless steel mandrels (longer life small diameter tools)
Prototype and serial mandrels for vulcanizing hoses
Mandrels with identifying signs of the contracting authority or end customer
Hollow stainless steel mandrels (mandrels and tools with a large diameter), calibrated and without calibration plugs. Plugs can be under vacuum for easier drawing of the preparation into the mold
Wrapping mandrels
Tapping / cutting mandrels - with a layer of hard chrome

Do you need to produce just a few pieces, a verification series or do an installation test? We are also ready for small orders and projects!

Special forming mandrels with very small diameters

Special mandrels for vulcanization with a diameter from 3 mm are made of stainless steel, which guarantees very good durability compared to classic materials, it is of course dimensionally stable, permanently stable and flexible.