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Quality management

In 2009, the company Kunststofftechnik Kuhn GmbH was certified for the first time according to DIN EN ISO 9001: 2008. Regular successful monitoring and repeat audits confirm the high quality aspirations and thinking.

In 2021, recertification according to DIN EN ISO 9001: 2015 was successfully carried out.

The basis for a functioning quality management system is clear leadership, a high quality awareness of all employees and constant checks before, during and after production. This represents an important component of competitiveness and ensures the fulfilment of the high quality requirements of our customers. Of course, upon customer request, we will prepare initial sample test reports, factory certificates and test reports.

Steps of quality assurance

  • 1. Material

    1. Material

    We source our high-quality engineering plastics directly and exclusively from the market-leading semi-finished product manufacturers. This guarantees high material quality and availability. Approved material, e.g.: EU/10/2011, FDA, REACH or RoHS are available from stock.

  • 2. Production

    2. Production

    During the manufacturing process, constant quality controls are carried out and recorded by our technical staff and our QA employees on the machines.

  • 3. Final inspection

    3. Final inspection

    The final inspection is carried out by our three QA employees with their great expertise, many years of experience and modern testing equipment. This is the basis for a detailed review and documentation.

Quality Assurance

The examination of the high-quality plastic parts is carried out in a separate air-conditioned testing/measuring room, at a constant ambient temperature of 20°C. This ensures an accurate, comparable and meaningful test.

2D Height Gauge

  • 1D and 2D measurements
  • Tolerance monitoring
  • Straightness measurements
  • Angle calculation
  • Measuring programs

Image-guided 3D coordinate measuring machine

  • 3D measurements
  • Measurement of shape and position tolerances
  • Tolerance monitoring
  • Determine coordinate systems
  • Measuring programs

Tolerances on Machined Plastic Components

Plastics are subject to different physical laws than metals.

The up to 10-fold greater thermal expansion, the volume change due to moisture absorption as well as subsequent dimensional changes due to the reduction of residual stresses in the long-term behaviour, preclude the guarantee of narrow dimensional tolerances.

Inform now

Your personal contact

  • Klaus Prior

    Klaus Prior

    Quality Management Officer Contact for quality assurance and scheduling
  • Michael Thielemann

    Michael Thielemann

    Quality Assurance Officer Contact for quality assurance
  • Gisbert Schröder

    Gisbert Schröder

    Deputy Quality Assurance Officer Contact for quality assurance
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