Our technologies

Innovative technology in proven quality

professionals in many countries, GFU is a competent partner in solving complex, technical problems with advanced and trend-setting technologies. According to the special wishes of the customers, a complete solution concept is developed and offered by our team.


The tube is held axially by at least two clamping jaws during forming. A guided drawing-in ring or expanding mandrel is pushed into/over the tube and in this way expands/reduces the workpiece. The closed design of the machine housing preferred by GFU ensures:

For necessary multiple operations, we offer an optional automatic tool changer.



The High-Speed End-Forming Process is based on the spinning/ flow-forming process principle. The main difference is that the tool is not a roller which runs off a specific shape, but a pot-shaped tool in which the entire course of the shape is incorporated. The components that can be produced by this process must be rotationally symmetrical.



The tool segments (2, 3 or 4-jaw tools) exert radial compressive forces on a rotating workpiece. Different workpiece shapes can be achieved by appropriate design of the tool segments. Depending on the degree of forming, this process takes place cold or hot.

The forging process can be used for steels, aluminum, copper, titanium as well as other metallic materials.



Das Stauchen basiert auf dem Prinzip, dass zwei Werkzeugsegmente das partiell erwärmte Rohr umschließen und anschließend durch 1 bzw. 2 Stempel das Material in axialer Richtung angestaucht wird. Es können sowohl Rohr- wie auch Vollmaterialien partiell angestaucht werden. Hierbei sind über die Werkzeuggeometrie Konturen möglich.



Punching is based on the principle that a narrow punch (die) is positioned inside the tube and then the tube is fixed around the punch with 2 split tool halves. A cutting punch is then pressed very precisely onto the outside of the tube below the cutting punch hole at high speed and force, creating a hole. The tubes are fed in using a servo motor and the tube can be punched several times within one cycle. The systems are equipped with a punching hole control, which ensures that the quality of the output product is guaranteed. There are also DMC readers on the system for data transfer and quality control of the end products.



+49 6561 694 94 69

Lilienthalstraße 14
54634 Bitburg

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Friday: 7.30 am - 2.00 pm

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