Technical cleanliness

Technical cleanliness is becoming increasingly important in many sectors of industry, the automotive industry, mobile hydraulics and production systems. Phrases such as 'reduction and avoidance of start-up breakdowns' and the difficulty of ever-increasing warranty periods are driving the demands for component cleanliness.

Suppliers and producers of complete systems are required to meet more demanding technical cleanliness standards for their products and systems. HYDAC provides the Contamination Test Units and Contamination Test Modules as analysis devices which allow you to carry out your own inspections for determination of the technical cleanliness in a flexible manner.

Analysis equipment

After the component cleanliness inspection, the filter membrane is analyzed with a Leica microscope.
The contamination is examined in terms of its gravimetry (weight in mg) and granulometry (longest particle in µm and quantity of particles in different size classes). This data is evaluated relative to the component, the component surface or the volume of the complete system.
The result is documented in the lab report (see template) and discussed with the customer.

Laboratory services

In our lab, we inspect the technical cleanliness of your produced components and systems according to your requirements, as well as on-site using our laboratory vehicle.
We perform this service using the Contamination Test Unit (CTU) developed by HYDAC.
In the technical cleanliness inspection of components, the fluid used for flushing is drawn through a filter membrane into the CTU. The contaminant-filled filter membrane is analyzed with a Leica microscope.
Experienced laboratory personnel ensure competent support according to the respective current status of technical cleanliness. As a member of the industrial alliance "Technical Cleanliness" (TecSa), HYDAC was authoritative in the development of the cleanliness inspection directives VDA 19 / ISO 16232 in the automotive industry as well as in the preparation of Part 2, "Technical Cleanliness During Assembly".
You can find the experiences gathered on the subject in our brochure:
"Cleanliness Handbook - Technical Cleanliness of Components and Systems"
DEF 7.606../..

Process optimization

Reduction and avoidance of 0 km failures and demanding technology with high guarantees set increasingly high demands on cleanliness management.

Cleanliness checks on produced components, the source of problematic particles on the surfaces which have been wetted with fluid and the required analytics are fields of activity on which HYDAC is currently working.

  • Process water supply
  • Cooling lubricant systems
  • Machine tools
  • Forming machines
  • Part cleaning systems
  • Testing and filling systems
  • Technical cleanliness
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