Quality control

DOS adheres to a consistent quality strategy at all stages of development and production processes, and in all fields.

During this process, our product quality control and optimization are of utmost importance. We are a learning oriented company that achieves innovation through open and constructive communication.

Professional personnel provide professional support

We combine cutting-edge manufacturing equipment and technology with the expertise of our engineers and technicians in a better way to meet our customers’ demanding requirements for quality and reliability. Transmission guarantees that each batch of bearings supplied to customers meets high quality standards.

Accuracy is the benchmark of our manufacturing and production technology

Our new generation of CNC production equipment can complete mechanical processing programs such as grinding and ultra precision treatment of the inner and outer rings of bearings. From raw materials to components and then to finished products. Through a comprehensive quality management system, we ensure that every batch of bearings meets high quality standards.

Strict quality control and pursuit of zero defects

The R&D and quality teams at headquarters have the most modern laboratories and testing equipment, allowing them to conceive new high-performance products, continuously optimize existing complete product lines, and monitor product production at numerous domestic and foreign production bases to ensure compliance with DOS’ strict quality requirements.

For our products, we trust that after years of trial and testing, we can ensure a quick response to the constantly changing needs of our customers in a short period of time.

Do you have any questions about our products, or would you like to inquire about how to develop personalized requirements based on your own needs? Please contact us - we look forward to your inquiry!

DOS provides cost-effective products and solutions to global customers through technological exploration and innovation. Contact us for a solution