ZWZ mainly produce CRBTRB and SRB roller . The diameter of roller is 10mm-200mm. The annual capacity is 60 million pcs . Rollers are provided to locomotive , cargo , passenger train . Automotive gearbox , heavy truck bearing , precision machining bearing , wind power bearing , special bearing , metallurgical , mining machines bearing etc ., high - speed wire rod bearing , metro bearing and high - speed rail .

Key technology

ZWZ purchased British Taylor roundness instrument and roughness profile instrument to inspect all kinds of dimension precision and geometric precision . By the ZWZ national bearing inspection center , ZWZ does the inspection for lifetime of roller , metallographic and destructive inspection . Assure high reliability and high precision of the roller . ZWZ acquired the certificates of ISO9001 ISO /TS16949 ISO /TS22163ISO14001OHSAS18001

ZWZ Investment transformation

In 2023, ZWZ had invested a lot of money in technical transformation to improve production efficiency and meet customers' needs for delivery time and quality.

New railway conone roller production line to meet the incremental demand of railway products.

Introduce domestic and foreign high-end processing equipment, and set up four wind power spindle roller production lines to meet the incremental and quality requirements of wind power spindle rollers.

The introduction of advanced underwater ultrasonic flaw detection equipment, roller detection equipment, automatic sorting equipment, to meet the quality needs of customers.

Adjust the layout of the original production channel, fill in and fill up the bottleneck process equipment of the channel, so that the channel production efficiency can be greatly improved, and shorten the delivery time.

Through investment and transformation, our company has gradually formed a product structure based on railway roller, small and medium cylindrical roller, spherical roller, precision cylinder, conical roller, super large roller as the backbone, and wind power spindle roller as the leader.

For more info, welcome visit www.zwzroller.com