Swinging lip hydraulic dock levelers are the most used dock leveler type in loading and unloading operations. The structure, consisting of lip, platform and frame, is made of RAL7016 painted galvanized steel sheet. The main platforms of the hinge lip hydraulic dock levelers are made of 6/7 mm thickness of drop patterned SD37 quality galvanized steel sheet. C and L shaped profiles are strengthened by welding to the main platform. The lips of the swinging lip dock levelers are made of 12 / 13mm thickness of drop patterned SD37 quality galvanized steel sheet. It is produced in accordance with EN 1398 norms. It can reach up to 640 mm above the loading area and up to 300 mm below the loading area.