Your partner for heavy plate
The company, UnionStahl GmbH, was founded in 2002.

Since then we have continuously expanded our range of heavy plate to meet the needs of our customers. Today we store approx. 60,000 t of heavy plate and are one of the few full-range suppliers in the heavy plate area.

With its oxy-fuel, plasma and laser cutting systems, our cutting operation is able to produce cuttings in the fixed dimensions you require.

We offer you the processing services of milling, drilling, edging, rolling and welding and thus the possibility of purchasing ready-to-install components directly.

UnionStahl is now one of the leading companies in the European heavy plate market.

Our well-trained and committed employees are at your side with specialist knowledge and technical know-how in order to reliably meet your needs according to your wishes.

And that's why we're proud of our employees, who work every day for the company, our customers and partners, developing and implementing new ideas.

With the main pillars of UnionStahl - our team, our customers, our supply partners and the unique product range - we face new future challenges every day.

Our company was established in 1992 when we started the production of transport containers used for storage and transporting of solid, liquid and loose substances. Over the time we increased the variety of our services and we offer laser welding, dividing of materials, projecting, 3D modelling and CNC shaping. Today we offer a complex variety of services for all industry branches.

Milling, welding, welded constructions

We are a successful, medium-sized company with a broad
Range of services in the production, engineering, jigs and fixtures.


At our headquarters in Allersberg, Germany, we offer modern methods
metalworking and sophisticated complete solutions - individually according
Customer developed, designed, manufactured and assembled.

In the field of mechanical manufacturing, we sin supplier for a variety of applications.
We offer customized and cost effective solutions to your manufacturing problems. Our team has excellent experience in the production of individual parts, small series and assemblies for vacuum systems of the thin-film technology, microelectronics, electron beam technology, special purpose machines of the general mechanical engineering.
Revision of steels and materials that vakuumtechn. Requirements (eg, V2A, V4A, Inconel, Monel, bronze, copper), aluminum plastics such as POM, Ertalon, Peek, PTFE etc.
Production of small recipients and chambers of the UHV and HV technology
Performing welding operations, the vakkumtechn. Satisfy requirements such as leak rate, discharge pressure and pressure test.

Cnc laser cutting, sheet metal bending, 3d design

Valenta Metall has specialized in sheet metal working and laser cutting for many years. In addition to the laser machines, there are also 2 modern pressbrakes, as well as a PEM press-in machine available.
Furthermore, we can weld on welding studs with an automatic HBS stud welding machine (in the format 2500x1250mm).
The years of experience in metal construction also make welded assemblies.
The company Valenta has specialized in high quality standards within the shortest delivery time.

Contract manufacturing in mechanical engineering.
Component to 50 clays Eizelgewicht.