Since 1970: Competence in sheet metal tensile tests

You invest 50.000 or even 100.000 € in a first-class Tensile testing machine and think: Finally, we can correctly determine the quality of the sheet metal? Sample preparation is often neglected, and the samples are obviously manufactured incorrectly. Should you really conduct a tensile test if you don't know whether the results deviate by 1% or 30% from the actual material properties? Read this Knowledge baseWhy incorrect results can occur and which methods are suitable: advantages and disadvantages of different manufacturing processes.

No major company is missing from our supplier list. Customers say it's a "who's who" of sheet metal products: automotive manufacturers, Tier 1 and Tier 2 molded part suppliers, steel manufacturers, rolling mills, galvanizing plants, semi-finished product manufacturers, and stamping plants.

• ThyssenKrupp | ArcelorMittal | SALZGITTER | voestalpine | VDM | ARANIA | INTERFER STEEL | BAO STEEL | WUHAN | SHOUGANG
• BENTELER | STAMP | GEDIA | TWB | MUBEA | MAGNA | COSMA
• VOLKSWAGEN | FORD | DAIMLER | FIAT | BMW | OPEL
• BROSE | FAURECIA | RECARO | ADIENT
• BILSTEIN | WÄLZHOLZ | THEIS | VOGELSANG | GIEBEL | KME
• and another 300 companies in Germany, Europe and worldwide

From the sheet metal to the perfect tensile test specimen 20 x 80 / 12,5 x 50 / 6 x 30 in less than 3 minutes! Our punches and a unique sample grinding machine were specially developed for sample production in materials testing.
And no other company offers you this: We customize our systems precisely to your needs: Custom designs are our standard. Our over 50 years of experience has led to more solutions than we can present on our website. Others offer punches and punching tools – we offer solutions that save you labor, are more cost-effective, and the quality of the tensile test is unsurpassed.

One thing is certain: There have been multiple attempts to copy our sample grinding machine. So far, all manufacturers – including well-known companies – have failed and have discontinued this product due to constant customer complaints.

By limiting the technology to these as well as a Application These presses could be designed so cheaply that even used machines (with a larger stroke and greater flexibility...) are often more expensive than our new machines.

In recent years, there has been a trend towards significantly increasing the material strength of sheet metal using new alloys. The punching force required to punch higher-strength sheets has also increased accordingly. Punches with 1.000 or 1.200 kN (100 or 120 t) are now standard.
For several years now, the automotive sector has been in need of a solution to the problem of producing tensile specimens from sheet metal from hot forming / press hardening / tailored blanks / hot forming. We also offer special solutions for this, which are already being used by a large number of companies – ask us!

Since not all sheet thicknesses can be punched with one tool (limits: 0,05 - 12 mm thickness), several sheet thickness ranges are required, which are designed individually according to customer requirements. For higher outputs (from 1.000 kN - 100 t) we have designed and supplied punches in a closed design in the past. By revising and checking these designs using the finite element method, optimized designs could be developed. The currently largest punching machine now has a punching force of 2.500 kN (250 t) and, thanks to its C-shape, offers the advantage of being able to punch from a sheet of unlimited size.