Bellows suction cup (round) for very uneven workpieces

Suction cup materialSilicone SI
Material hardness [Shore A]55 Shore A
Thread G1G1/4"-M
Number of folds4.5
SPB4 20 SI-55 G1/4-AG
Attribute Value
d2 13.50 mm
dn 8 mm
Dmax(S) 24.40 mm
Ds 21.40 mm
G1 G1/4"-M
H 48.40 mm
LG1 10 mm
SW1 22 mm
Z (Stroke) 10 mm
Attribute Value
Suction force (-600mbar) 8 N
Pull-off force 11 N
Volume 7.90 cm³
Hose diameter (empf.) d 9 mm
Number of folds 4.50
Suction cup material Silicone SI
Material hardness [Shore A] 55 Shore A
Weight 20.70 g
Product family SPB4
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Ordering information: SPB4 20 SI-55 G1/4-AG

Suction cup SPB4 (elastomer part + connection element) is delivered assembled. The assembly consists of:

  • Suction cup of type SPB4 – elastomer part, available in various diameters
  • Connection element of type SC – available with various threads


Available spare parts: suction cup SPB4, connection element (Schmalz-Connector)

Available accessories: filter screen (sieve, round), hose clamp, pad insert