Bellows suction cup (round) for very uneven workpieces

Size20
Suction cup materialNitrile rubber NBR-dissipative
Material hardness [Shore A]55 Shore A
Nipple materialAluminum
ConnectionG1/8"-M
Number of folds2.5
Vacuum connectionG1/8"-M
FSG 20 NBR-ESD-55 G1/8-AG
Attribute Value
d2 10.50 mm
dn 3.50 mm
Dmax(S) 21 mm
Ds 20 mm
G1 G1/8"-M
H 28.10 mm
LG1 7.50 mm
SW1 14 mm
Z (Stroke) 9 mm


Note: Acceptable dimensional tolerances for elastomer parts concerning to DIN ISO 3302-1 M3
Attribute Value
Suction cup material Nitrile rubber NBR-dissipative
Material hardness [Shore A] 55 Shore A
Size 20
Number of folds 2.50
Connection G1/8-AG
Curve radius (min) (convex) 30 mm
Volume 2 cm³
Suction force (-600mbar) 5.20 N
Pull-off force 12.10 N
Hose diameter (empf.) d 4 mm
Weight 6 g
Product family FSG


Note: Suction force: The specified suction forces are theoretical values at a vacuum of -0.6 bar and with a dry, smooth and flat workpiece surface - they do not include a safety factor Pull-off force: The pull-off force of the versions made of natural rubber is reduced by about 40% Hose diameter: The recommended hose diameter refers to a hose length of approx. 2 m

Ordering information: FSG 20 NBR-ESD-55 G1/8-AG

Suction cup FSG (elastomer part + connection nipple) is delivered unassembled. The delivery consists of:

  • Suction cup of type FG – elastomer part, available in various diameters and materials
  • Connection nipple of type SA-NIP – available with various threads

Available spare parts: suction cup FG, connection nipple SA-NIP