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  With the development of steel rolling production, the new hydraulic pusher has gradually replaced the old mechanical pusher, making full use of the advantages of large thrust, small volume and convenient operation of hydraulic oil cylinder and hydraulic system, greatly simplifying the pusher process and greatly reducing the equipment cost, which is welcomed by users. The main models of hydraulic pusher produced by Shimen Xingyuan machinery factory in Zunhua City, Hebei Province are 300 tons, 240 tons, 220 tons, 180 tons, 160 tons, 120 tons, 80 tons, 60 tons, 30 tons, 20 tons and 15 tons, which are respectively used in different pushing occasions and play an increasingly important role in steel rolling production.