Airbag loading dock leveler 1.Air inflation system. 2.special ... -volume.2,It adjust the leveler board through airbag inflation.3,Its airbag is made of special industrial fibre and has ... also equipped with cleaning filter to protect the motor and airbag.6,Its steel-structure has undergone sand-blasting .7,Five ... 6feet, 6.5feet, 7feet3.leveling hight: +300/-300mm4. Capacity: 10tons. Airbag dock leveler