General The Electric Vacuum Glass Lifters use a vacuum suction system to lift, tilt, and move large flat glass panels. They are suitable for use in factories or construction sites where handling heavy, long, or difficult-to-maneuver glass panels is required. Different models within this product line are designed to meet various requirements in terms of load capacity, suction area, and adjustment flexibility. Features Tilts glass 0°–90° for easier installation into frames or facades. Auto vacuum pump reactivates on pressure loss to maintain suction. Sound and light alarms alert when vacuum drops. Adjustable frame and pads suit various glass sizes. Electric-powered with integrated control panel. Manual ON/OFF valve for suction release or hold. 360° manual rotation (on AEPVGL-MR model) for turning panels around a vertical axis. Read Less