Workpiece and material testing

For incoming inspection or after the completion of large components, we use measuring and testing methods to determine the quality of the workpiece. These tests are documented in accordance with the relevant standards.

We carry out a wide variety of workpiece, material and dimensional testing for our customers.

Laser tracking

With our mobile laser measuring system, we can also perform dimensional checks on components and precisely measure complex contours of large components.Dimensional accuracy inspection with the Laser Tracker - WEHRLE Service on site

Fully documented and traceable, we achieve the following accuracies with our laser tracker:

Distance measurement in beam direction

  Length (m) 2-5 2-10 2-20 2-30 2-40 2-60  
  Distance (m) 3 8 18 28 38 58  
ADM MPE (mm) 0.018 0.022 0.03 0.038 0.046 0.062  
ADM typically (mm) 0.009 0.011 0.015 0.019 0.023 0.031  


Horizontal gauge block measurements (2.3m)


Measuring range 


2 5 10 20 30 40 60  
ADM MPE (mm) 0.044 0.064 0.099 0.17 0.24 0.311 0.453  
ADM typically (mm) 0.022 0.032 0.049 0.085 0.12 0.156 0.226  

Your advantages

  • Mobility: simple design, quick and precise measurement, also for several components

  • Component size: suitable for large components of up to 60 m

  • Precision: reliable and precise measurement, also for large dimensions

Leak and pressure tests:

Test medium:

Test pressure: up to 1000 bar (depending on the application and regulations)
Execution: by a notified body in case of manufacture according to regulations, alternatively by WEHRLE’s Quality Management Department according to “good engineering practice”

If necessary, leak and pressure tests for steam boilers and pressure vessels may be carried out by a notified body, e.g. TÜV SÜD.

Non-destructive testing of materials and welds:

Visual inspection  
Surface crack testing Magnetic particle method, dye penetrant method
Volume testing methods Ultrasonic testing, radiographic testing
Material mix-up tests / material determination X-ray fluorescence analysis, spectral analysis
Mobile hardness testing  

All tests are carried out by certified specialists according to DIN EN ISO 7912.

Construction testing:

WEHRLE construction testing - execuion by notified body, e.g. TÜV SÜD - AD2000 Pressure vessels and steam boilers
- DIN EN 12952 Water tube boilers
- DIN EN 12953 Shell boilers
- DIN EN 13445 Unfired pressure equipment
- DIN EN 13480 Pipes

Execution by notified body, e.g. TÜV SÜD.

Re-stamping of materials:
WEHRLE –re-stamping of materials according to certificate APZ 3.1

Agreement with TÜV SÜD: authorization to re-stamp materials according to certificate APZ 3.1

Contact us in case of interest!

Tel.: +49 7641 585 0