The rain cover is made of high-tech polymer materials. This fabric features high wear resistance, high tensile strength, explosion resistance, extreme lightness, and water resistance. This material can be inflated to keep the fabric in a taut state. Even when installed over cargo hold openings of different sizes, it can prevent water from entering.

The skirt of the rain cover is fixed to the deck by means of an inflatable airbag. The fans installed on the driving device inflate the airbag through flexible pipelines. After inflation, the skirt airbag is fixed to the ship's hatch through permanent magnetic chuck.

Automatic tension control function- ropes; Air inflates control function- airbag; The visualization function - show the loading volume for operator. 

System protection function-overload.