Quality, certificates

For us, quality is not a question, not an agreement or a promise, but a fundamental fact.


Quality is vital for every company. KTT's high quality products and services are key to maintaining customer satisfaction and loyalty. Quality is value. Value that enhances reputation and increases competitiveness in the market. KTT is committed to quality manufacturing and quality service.

Our ISO 9001 quality management system allows us to effectively monitor our processes, improve the quality of our products and services. In addition to the requirements of ISO 9001, KTT strives to implement and adhere to the principles described in IATF 16949. We identify, apply and monitor the requirements described therein and ensure compliance.


The quality management system of KTT

KTT-t is known worldwide for its high quality products and services. We apply the most effective quality techniques from design to manufacturing processes, from supplier supervision to after-sales service. To highlight some of the quality techniques we use:

  • Supplier audits;
  • Design / Process FMEA;
  • Performance tests (MSA, Gauge R&R);
  • Control plans;
  • Internal product / process / delivery audits;
  • PDCA;
  • Failure analysis methods (8D, 5why, Ishikawa, Drill-deep...).


Quality control at KTT

Throughout our product manufacturing processes, we continuously test the quality of raw materials, semi-finished and finished products, using our excellent specialist staff and applied testing equipment and procedures. Among others:

  • AQL incoming goods control;
  • Product conformity certificates and inspection reports;
  • In-process inspection;
  • Automated sensor-based parameter monitoring on main production equipment;
  • 3D optical and tactile measuring equipment;
  • 100% final inspection.


Cerificates to download

Under the links below, you can find our quality management system, ROHS and REACH compliance documents:

KTT Sealing Technologies is currently the only manufacturer of sealing elements in Hungary that offers a wide range of sizes for all types of oil seals made of all widely used elastomer materials.

Our main activities are the production of oil seals as well as, the wholesale and retail sale of oil seals, O-rings, hydraulic seals, mechanical and technical assembly goods.


KTT Kubinszky Sealing Technologies Ltd.
9400 HUNGARY, Sopron, Besenyő str. 24/B.
Local Tax number: 11462390-2-08
EC VAT Number: HU11462390
Phone: +36 99 / click
E-mail: click
Monday–Friday: 9.00–16.00

Inventory information

The stock information on the webshop is real and constantly updated. We regularly expand our range based on customer demand.

If you are looking for special rubber products, contact us – KTT is your professional partner in sealing technology.

The KTT Kubinszky Sealing Technologies Ltd
is part of the Axel Johnson International Group.




Our references

BorgWarner, Bosch, Festo, Grundfos, Caterpillar, KUKA Robotics, Electrolux