... 500~1250 ton 2.used for tubing pipe,casing pipe,sucker rod and pipe fittings upsetting 3.Meet API &CE ... supplied production capacity, the heating time for one pipe end need 30 s , then we calculate the ... the oil cylinder and turning over the steel pipe from storing desk to conveying roller. 2 Feeding ... workpiece, roller way motor will start at once, make the workpiece quick leave far to the heating area ...