A vacuum ejector device for generating at least partial vacuum to be supplied to a gripping member, comprising a device body having an elongated shape along a longitudinal axis A, the vacuum ejector device comprises - an air inlet port provided at a first end of the device body and being structured to receive pressurized air from a pressurized air supply source via a pressurized air tube, - a vacuum connection port provided at a second end of the device body, opposite said first end, in fluid communication to a vacuum duct, the vacuum connection port is structured to receive and connect one end of a vacuum tube that in its turn is in fluid communication to said gripping member, wherein said air inlet port and said vacuum connection port are arranged essentially along said longitudinal axis A, and structured such that said pressurized air tube and said vacuum tube are essentially in-line and oriented along said longitudinal axis A, - a vacuum generating duct in fluid communication to said air inlet port, and at least one vacuum generating member positioned at or in or partially in the vacuum generating duct, the vacuum duct connects to and is in fluid communication with the vacuum generating duct and terminates at said vacuum connection port, said vacuum generating member is configured to generate at least partial vacuum to said vacuum duct when the pressurized air supply is activated, - a movable sealing and venting element is provided and is structured to selectively substantially close and seal, in a sealing position, said vacuum duct when the air supply is activated, and to open or vent said vacuum duct to release or vent via a venting duct, in a venting position, the vacuum within the gripping member when the vacuum source or air supply is deactivated, characterized in that the sealing and venting element is arranged essentially at said longitudinal axis A, and that the venting duct is arranged and provides for fluid communication between the sealing and venting element and a venting outlet port provided at a long side of said elongated device body. - an air inlet port provided at a first end of the device body and being structured to receive pressurized air from a pressurized air supply source via a pressurized air tube, - a vacuum connection port provided at a second end of the device body, opposite said first end, in fluid communication to a vacuum duct, the vacuum connection port is structured to receive and connect one end of a vacuum tube that in its turn is in fluid communication to said gripping member, wherein said air inlet port and said vacuum connection port are arranged essentially along said longitudinal axis A, and structured such that said pressurized air tube and said vacuum tube are essentially in-line and oriented along said longitudinal axis A, - a vacuum generating duct in fluid communication to said air inlet port, and at least one vacuum generating member positioned at or in or partially in the vacuum generating duct, the vacuum duct connects to and is in fluid communication with the vacuum generating duct and terminates at said vacuum connection port, said vacuum generating member is configured to generate at least partial vacuum to said vacuum duct when the pressurized air supply is activated, - a movable sealing and venting element is provided and is structured to selectively substantially close and seal, in a sealing position, said vacuum duct when the air supply is activated, and to open or vent said vacuum duct to release or vent via a venting duct, in a venting position, the vacuum within the gripping member when the vacuum source or air supply is deactivated, characterized in that the sealing and venting element is arranged essentially at said longitudinal axis A, and that the venting duct is arranged and provides for fluid communication between the sealing and venting element and a venting outlet port provided at a long side of said elongated device body.