We use the most modern measuring devices to control manufacturing precision, including devices from Leica (AT401), Mitutoyo or GE.

We run an in-house training centre to upgrade the qualifications of our welders and for periodic exams.

Our manufacturing plant has a laboratory for destructive as well as non-destructive testing. Ongoing projects are supervised by certified welding supervisors (IWE, IWT, IWS, IWP) as well as by NDT personnel qualified according to ISO 9712 (VT2, UT2, MT2 and PT2).

We are working continuously on the implementation of Kaizen, TQM, 5S and other processes at Schäfer – Menk. We use the Poka Yoke system in production to ensure repeatability and zero manufacturing defects.

We are certified according to:

  • EN ISO 9001:2000 (TÜV NORD)
  • ISO 14001(TÜV NORD)
  • EN 1090-2 třída EXC3 (SLV HANNOVER)
  • EN 15085 třída CL1 (SLV HANNOVER)
  • DIN 18800-7 třída E (SLV HANNOVER)

We weld using the following methods: 135, 138, 131, 141, 121, and 783.
We also make extensive use of robotics and automated welding.
Welded materials: S235-S355, S690QL, S960QL, S1100QL, stainless steel, aluminium and copper alloys.

pdf-iconPolitika v oblasti BOZP a PO a EMS


ČSN EN ISO 14001:2015 – environmental management systems

In accordance with the ČSN EN ISO 14001 standard, we adhere to the specific requirements for an environmental management system, which we use internally, for certification or for contractual purposes with suppliers and customers.
For certification purpose we employ an independent assessment (TÜV NORD) of the ability to create and maintain procedures for identifying the environmental aspects of our activities, services, products and the continuous improvement of the environmental management system.







EN 15085: Welding of rail vehicles and parts thereof
We comply with the standards for the welding of rail vehicles and their parts according to ČSN EN 15085-2 at the CL1 certification level.
We use an independent assessment from GSISLV Hannover for the purpose of the certification.

EN 1090-2: Manufacturing of steel construction structures

The standard applies for the manufacturing of all types of steel supporting structures and complies with the principles and requirements for the safety and lability of structures and the basic provisions for the design and assessment.
We use an independent assessment from GSISLV Hannover for the purpose of the certification.