Classification of ship hatch covers

Marine hatch covers are mainly divided into three categories: lift-off hatch covers for containers, side-moving hatch covers for bulk carriers, and foldable hatch covers for general cargo ships. Among them, the foldable hatch cover can also be used on a bulk carrier connected to the hatch, and the lift-off hatch cover can also be used on a general cargo ship. If the overtime space is limited, the sliding hatch cover (mostly along the longitudinal direction of the ship) can also be installed in a stacked type, that is, two or more hatch covers can be stacked together with a hydraulic device, and then along the hatch according to actual needs move.