This invention relates to a suction cup, a negative pressure transfer means a handling assembly comprising the suction cup and the negative pressure transfer means, a tray for securing the handling assemblies and a container grasping system comprising the tray and handling assemblies.The suction cup comprises channels that are secured by suction onto a perimeter of an aperture of a hole of the container and a protrusion positioned internally in relation to the channels that closes a hole of the container. The suction cup enables the container to be grasped and handled while closing its hole. The use of numerous suction cups in parallel enables numerous containers to be handled in parallel.
