Shandong Dorson Hydraulic Co., Ltd (former name Jining Automobile Spare Parts Co., Ltd, established in 1956) which developed into private joint-stock company that specialized in producing the excavator parts including idler cushion, front idler, sprocket, track roller, carrier roller, rotary joints, hydraulic redirector, cycloid motor, one-piece multi-way valve, central rotary joints since 1998.

Shandong Dorson Hydraulic Co., Ltd adhere to the principle that"winning the market with our sincerity, meeting the challenge with our quality, broadening the market with our service" We are dedicated to revitalizing this national industry.

Our company have successively produced the excavator parts idler cushion assy, front idler assy, sprocket assy, track roller assy, carrier roller assy, central rotary joints that covers many types like PC400\PC300\PC220\PC200\PC130-7\PC120\PC60\JCM230\JCM210\CT40\CT18\ZE60\ZE205\ZE230\ZE80 and so on which entrusted by famous brand such as KOMATSU SHANTUI\ZOOMLION\SANY\LISHIDE\CATER\WORLD GROUP\Ford\CARGOTEC\LOVOL\STRONG etc. Now developed the key hydraulic device which used by construction machinery such as central rotary joints\heavy flowing high pressure multifunctional valve for Excavator, Crane, Bulldozer, Loader etc.