ParametersDataUnitMax. thickness of coiled plate6mmMax. width of coiled plate1500mmYielding limit of sheet metal245mmRolling speed5m/minMin. full loading dia. of coiled plate380mmDia. of the top shaft160mmDia. of the bottom shaft140mmCentral distance between the bottom shafts220mmMotor power4kw 1. The rolling machine adopts 3-roller symmetrical structure with the upper roller moving vertically in the center between the two lower rollers, which is achieved through the drive of the screw, the nut, the worm and the lead screw. 2. The two lower rollers rotates, and prod=vides the plate materials with torque through the engagement of the output gear of the moderator with the gear of the lower rollers. 3. The contruction of the machine is compact, operation and maintenance is convenient.