Size18Suction cup materialNitrile rubber NBRMaterial hardness [Shore A]55 Shore ANipple materialAluminumConnectionM5-MNumber of folds2.5Vacuum connectionM5-M KE-FSG 18 NBR-55 M5-AGDesign Data Attribute Value d2 8 mm dn 2.50 mm Dmax(S) 19 mm Ds 17.20 mm G1 M5-M H 27.60 mm LG1 5 mm SW1 7 mm Z (Stroke) 9 mm