Binhai foundry is capable of casting crankshafts of 160, 170 and 200 models. The casting materials are all high grade ductile iron materials, including QT700-2, QT800-2 and QT900-2; Adopt self-hardening sand molding line for production, the production beat can reach 8 boxes/hour; Adopting the mature process of flat pouring and vertical cooling, the rejection rate of casting is less than 1.8%.