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Zhengyang supplies high quality rear brake drum with competitive pricing. High compactness molding machine and sand mold regeneration technology and under PLC automation control in the whole process. Contact for a quotation now!

Established in2004,Shandong Zhengyang Machinery Co., Ltd is a professional manufacturer and exporter that is concerned with the design, development and production of semi-trailer suspension system and axle series. Our main products includ disc brake axle, drum brake axle, axle tube, air suspension, mechancial suspension, bogie susepension, cantilever suspension etc. Zhengyang has passed ISO9001, ISO140001, OHSAS18001 management system certification and the standardization of intellectual property management certification. We have integrated testing equipments in a testing center, with advanced testing methods, we can control every link from raw materials, semi-finished products to finished products, to ensure that our customers can get consistent quality products.

Air suspension is widely used in semi-trailer, we produce air suspension is divided into lifting air suspension and non-lifting air suspension, air suspension characteristics are: forging +3D molding technology guide arm, high quality air bag, high performance shock absorber, compact axle lifting device, a full set of air path control system. The advantage of using air suspension is to reduce the impact of liquid flow on the tank during turbulence, and to protect the cargo safety; Reduce tire wear, reduce fuel consumption, etc. Light weight, can increase cargo capacity. For wholesale trailer suspension kits at competitive price, inquiry now!