AARDWOLF Vacuum Lifter Handy AHVL500

General  The Vacuum Lifter Handy is powered by a venturi vacuum generator, which needs a source of compressed air in order to function but requires no electricity. The vacuum generator has no moving parts and therefore no lubrication is required. This lifter consists of four (4) pads to make it can be replaced with different pads so that it fits with the sizes of materials. Features  Adjustable vacuum pads.  Attach/release materials with an ON/OFF slide valve.  Acoustic alarm system independently powered by a small 9V rechargeable battery. Vacuum gauge for a visual warning of low vacuum. Specifications For stone, concrete, foam pads      Metric  (mm-kg) Imperial  (inch-lb) Working load limit Pad sizes-Kg520x125:120 520x160:180 520x220:280 520x320:500 20.5"x5":265 20.5"x6.3":397 20.5"x8.7":617 20.5"x12.6":1102 Net weight 21 46 Gross weight 26 57 Packaging dimensions L.550xW.350xH.270 21.7"x13.7"x10.6" Battery information for the alarm system Power supply