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Quality assurance

For us top performance is standard.

For OHE, quality assurance is the be-all and end-all. All our products are checked according to a multi-level quality inspection system specified in DIN EN ISO 9001. None of our products leaves our production facilities in Hattingen without having passed the complete final inspection cycle.

Innovative, high-tech testing equipment forms the central element of our quality assurance systems. In addition to common measuring instruments, we also use special testing equipment and software.

  • Optacom LC10 profile measuring gage
  • Mitutoyo 3D coordinate measuring system, type CRYSTA-APEX S574

All our products are approved for application in underground mining operations – even for hazardous areas subject to the risk of gas or dust explosions.
OHE’s electromagnetic valves conform to ATEX standards and have been tested for compliance with ATEX guidelines by certified institutes.

Our certifications are available as downloads: