YZ159 series pressing machine for double-ended cylinder semi-automatic machine, feeding workers, blanking. Once the two ends of the belt conveyor roller bearings and seals at the same time push, pressure on the workpiece ideal machine for three tons. Roller working length according to the user's needs making, is not less than the minimum roller 200mm. Due to the need of efficient than the ability to press-fit car, cutting, welding process, skilled workers can shift output 150-200.