Vacuum Cups and Suction Cups Large Capacity Vacuum Pads with Replaceable Slip-On Seals Product Number Description and Application Replacement Seal A in. (mm) B in. (mm) C in. (mm) D in. (mm) Weight lb. (kg) Horizontal Rated Load* lb. (kg) Vertical Rated Load* lb. (kg) VP1220A-SI Silicone Special Order Only Standard Durometer for Metal, glass etc SSR-1220-SI Special Order Only 20.50 (521) 12.10 (308) 7.13 (181) 2.94 (75) 15 (6.8) 1100 (499) 550 (250) * Notes: Rated load at 22 in. Hg, vacuum, when used in the horizontal plane. Based on a safety factor of two (2), on vacuum holding. Vacuum Pad Attachments