Company Profile Hebei Dongan percision manufacturing Co., Ltd., we are specialized in producing all kinds of ladder class blank shaft. Its predecessor was hebei metallurgy technology development company, founded in 1984. It is covering 30,000 square meters including 16,000 square meters for production area. We had 80 sets of various facilities and 130 million RMB,our wedge rolling process and technology came from University of Science and Technology Beijing ! The basis principle of wedge rolling process is firstly putting the heated rods into the middle of two same-side rotating molds with wedge-shaped gibbous , the rods was driven by molds to do reverse turning movement , at the same time rods is compression deformation in radical and extension deformation in axial ,finally the ladder shaft component is achieved. Its feature is high productivity, high precision, small error, good product quality, saving raw materials, good work environment.

There are 10 sets gross wedge rolling machines, including two Cross wedge rolling machine H630, three Cross wedge rolling machine H750, two Cross wedge rolling machine H1000, three Cross wedge rolling machine H1200, matched 10 sets medium-frequency induction heart furnaces, one 1600mt-Friction-press machine, each of 250\450 ring rolling mill, two holed lathes, one gantry sawing lathe. The strip mill machine can product 60MT/day in single shift, three non-oxidation isothermal normalizing machines, the production capacity is 7.2MT/hour for axial products with ø10---ø128mm，L≦1200mm. It also can roll all kinds of rotary axial blank and forging, such as Transmission gear shaft, engine camshaft, oil pump shaft、semi-axle shaft sleeve, hollow shaft、electric tools, engineering machinery etc, annual production capacity more than 50,000MT, while we have numerically controlled lathe and rough turning, final turning process .

Our company thinks highly of R&D and innovation abilities. We invest more than 3% of sales revenue on R&D fundin