Plastics are subject to different physical laws than metals. In particular, the greater thermal expansion, the change in volume due to moisture absorption and dimensional changes due to the slow reduction of stresses in the material preclude compliance with the tightest dimensional tolerances - as is usual for metals. As there is currently no set of standards with tolerances for machined plastic parts and polyurethane moulded parts and coatings, KUNDERT has developed the standards published here.
Not all documents in the technical documentation are available in English. If required, please get in touch with your personal contact or contact us using the contact form.
KUNDERT KF 1010-1
This standard provides an overview of the tolerances applicable at KUNDERT for finished parts manufactured by machining.
KUNDERT PU 2010-1
This standard provides an overview of the tolerances applicable at KUNDERT for polyurethane finished parts manufactured using the hot casting process.