Discover our know-how in precision and micro-mechanics

More than 60 years of experience in design and construction of press tools.

SUPRA Technologies offers a very wide range of punching, notching, cutting and shearing units recognized worldwide.

A multidisciplinary team is at your disposal and available to offer you the best solution.

They trust us



Punching units are tools capable of performing unitary punching, notching or cutting-off work in sheet metal, profiles or tubes.

SUPRA units can be used on presses, press brakes of any type or in assembly integrating pneumatic, hydraulic, oleopneumatic or electric energy.

The SUPRA unit is the economical and rational solution adapted to all your manufacturing problems for medium and large series and repetitive parts.


The SUPRA units consist of a body whose function is to provide the geometrical link between the punch and die. The punch holder is supplemented in the punching and notching units by a stripping assembly.

Setting up

The SUPRA units, thanks to their universality and their autonomous mobility, do not need to be attached to the upper part of the unit (except the units type PAL, PAEL and TT). Their positioning is ensured by a Ø8 pin located under the base plate in the punching axe.


As the SUPRA unit is attached to the press table, the adjustment of the press ram closure or the adjustment of the bottom dead center (HOF) is of high importance. This rating is given for each unit. The unit is thus ready for use. The nose of the press come sinto contact with the striking plate. At the unit level, the sequence of operations is as follows :

  1. Descent of the press
  2. Bending of the ascent springs
  3. Contact of the stripper on the sheet metal
  4. Bending of the stripping springs
  5. Punching
  6. HOF reached
  7. Press pick-up
  8. Stripping the punch
  9. Raising the set

The punch is not integral with the slide, the body of the unit is not subjected to any mechanical stress.

Recommendation and maintenance

Set your press low dead point (HOF). This must in no case be less than the HOF indicated by the unit concerned or on the tool identification plate.

  • The HOF must be checked periodically in fonction of the cadence and time.
  • Check the condition of your punches and dies regularly (no wear and defects).
  • Punches and dies must be sharpened regularly. Grinding 1/10 of the cutting faces, without waiting for a defect to appear, increases the longevity of the tool.
  • After sharpening, the elements must be demagnetized.
  • Carefully check the clearances between punches and dies. The clearances are adapted to the thickness and grade of the material.
  • Regularly check that all components are securely fastened.
  • Keep the tool clean.
  • Periodically grease all moving parts of the tool.

Punching forms

The punches and dies (1/2 standard and special ones) must fit within the maximum punching Ø of the corresponding unit.

The SUPRA units are press tools that are very easy to use and operate, capable to obtain a wide variety of punches shapes, but also to carry out punching, creasing, embossing, marking, bending and stamping operations.


Please do have a little patience until the start of our new UK web side.

We give the finishing touch and will be online not later than 31 October 2020.

The catalogues in English already available as download.

Many thanks for your understanding.

Your SUPRA – Technologies Team

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On désigne par grugeage l’action d’enlever de la matière suivant un contour ouvert sur un côté.

Les unités SUPRA permettent le grugeage toutes formes de matériaux jusqu’à 10mm d’épaisseur. Elles se distinguent en deux types, avec dévêtisseur fixe dit à contre-plaque pour des épaisseurs matières maxi de 4mm et avec dévêtisseur mobile pour des épaisseurs matières maxi de 10mm.

Les unités SUPRA de grugeage s’adaptent aux travaux des matériaux en feuille, des profilés et des tubes.

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On désigne par encochage l’action d’enlever de la matière suivant un contour ouvert sur deux côtés.

Les unités SUPRA permettent l’encochage d’angle à 90° ou à angles variables des matériaux en feuille, des profilés et des tubes d’une épaisseur matière maximum de 10mm.

Les unités SUPRA d’encochage s’adaptent aux travaux des matériaux en feuille, des profilés et des tubes.

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On désigne par tronçonnage  l’action de séparer la matière par l’enlèvement du matériau.

SUPRA Technologies possède un grand savoir-faire dans le tronçonnage des profilés et des tubes. Le tronçonnage par outil coupant est une opération longue. Les unités de tronçonnage SUPRA permettent un gain de productivité important. Utilisées seules ou combinées, les unités SUPRA répondent à la fabrication de pièces simples et complexes.

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On désigne par cisaillage  l’action de couper la matière sans l’enlèvement de matériau.

Les unités SUPRA permettent le cisaillage de tôle, de coil ou bobine d’une épaisseur jusqu’à 10 mm. Les unités de cisaillage peuvent être combinées à d’autres types d’unités de poinçonnage, de grugeage et d’encochage permettant ainsi la réalisation de pièces ouvragées qui devrait faire appel à un outil spécifique.

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