Tunalift Gas Springs Unicert

Quality Policy


All our products are designed, manufactured and delivered according to the most strict quality standards. Our experienced and specially trained employees monitor the adherence to our quality criteria in every phase of the production process. Tunalift gas springs are manufactured with the highest quality, environmentally friendly materials.

We are certified in accordance with DIN ISO 9001:2015. Our quality program starts with implementing strict quality controls on our purchase transactions. Permanent quality is guaranteed due to the uncompromisingly monitoring of raw materials, an aggressive testing program and a redundant quality control program throughout the production process.

TGS products are continuously tested to ensure reliability, long life and over all product safety for your highest satisfaction. Using our test and development laboratory, products and technology are constantly being improved. Following tests are made by our in-house test equipments (Zwick Roel) and by officially registered laboratories:

  • Damping measurements
  • Extension speed measurements
  • Extension force measurements
  • Leakage tests
  • Thermal tests
  • Salt spray tests
  • Life cycle tests
  • Test of mechanical strength
  • Test of actual application
  • Metallographic inspections: material, hardness, microstructure.

Certificates and More