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Suction cup B50-2 Silicone, 1/8" NPSF female, B50-2.20.05AA


Part no. B50-2.20.05AA

  • Suitable for level adjustment. Several short bellows in one lifting device can handle objects with height differences and varying shapes, for example embossed or corrugated plates.
  • Lifting movement to separate small and thin objects.
  • Only lightweight objects should be handled when the lifting force is parallel to the surface of the object, in order to achieve good precision and safe lifting movement.
  • Filter disk made of PE.
Metric   Imperial
Item number, alternative S.B50-2S50.NS18F.02
Curve radius 1.18 in
Movement, vertical max. 0.49 in
Application Plastic injection molded parts, Dry sheet metal
Material Silicone (SIL)
Suction cup model B
Suction cup shape Bellows
Volume 1.95 in³
Weight 0.71 oz
Fitting size 1/8"
Fitting style Female
Fitting type NPSF-thread
Fitting option Filter disc
Height 1.75 in
Outer diameter 2.07 in
Performance — lifting forces
Vertical lifting force Parallel lifting force
6 -inHg 7.42 lbf 5.44 lbf
18 -inHg 14.6 lbf 11.5 lbf
27 -inHg 18.4 lbf 13.7 lbf
Silicone (SIL)
Color Red
Hardness 50 °Shore A
Temperature -40 – 392 °F
Material resistance
Silicone (SIL)
Alcohol ++
Concentrated acids -
Ethanol N/A
Hydrolysis +
Methanol N/A
Oil -
Oxidation +++
Gasoline -
Wear resistance ++
Weather and ozone +++

Dimensional drawings

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Values specified in the data sheet are tested at:
Room temperature (20⁰C [68⁰F] ± 3⁰C [5.5⁰F])
Standard atmosphere (101.3 [29.9 inHg] ± 1.0 kPa [0.3 inHg])
Relative humidity 0-100%
Compressed air quality DIN ISO 8573-1 class 4
Spare parts
Part no.
Fitting 1/8" NPSF female, 50 05AA
Suction cup B50-2 Silicone, with filter disk B50-2.20

Part no.
Filter D=54, 20 pcs, for B50-2 01.04.655
Fitting 1/4" NPT male, with dual flow control valve 05DC
Fitting 1/4" NPT male, with mesh filter 05AC
Fitting 1/8" NPSF female, 50, PA 05CA
Fitting 1/8" NPSF female, 50, with dual flow control valve 05DA
Fitting 1/8" NPSF female, 50, with mesh filter 05AG
Fitting 3/8" NPT male, with dual flow control valve 05DE
Fitting 3/8" NPT male, with mesh filter 05AE
Fitting 5x1/8" NPSF female, 50 05AF
Fitting 5x1/8" NPSF female, 50, with dual flow control valve 05DF
Fitting G1/4" male, 50, with mesh filter 05AB
Fitting G1/4" male, with dual flow control valve 05DB
Fitting G1/8" male, 50, with mesh filter 05AI
Fitting G3/8" male, 50, with mesh filter 05AD
Fitting G3/8" male, 50, with mesh filter and dual flow control valve 05DD
Suction cup B50-2 Nitrile-PVC, with filter disk B50-2.30
Support / CAD
Please use desktop version/ordinary computer to download CAD files.
Data sheets
Brochures (1)
White papers (1)
Training (4)
    • Suction cups

      • How do I know which lifting forces I need?
        • It depends on the weight of the product that should be lifted and how many suction cups that can be used for the object. Calculate the weight to be lifted per suction cup and then take the weight multiplied with the gravity force (g=9.81) and you have the lifting force needed in pound force (lbf).

      • How do I know which suction cup to choose?
        • Our recommendation is to start at the application listing to find the products we recommend to different applications. If you have questions please do not hesitate to contact our partners to find the optimum solution.

      • How should Piab suction cups be stored?
      • I have a variation of number of objects to be lifted- how can I make sure to not drop them or to use too much energy? How to optimize this type of system?
        • All suction cups not in contact with an object (open) will draw in a lot of air and demand a larger pump than actually necessary. By using different valves, such as piSAVE sense, in the suction cups, the suction cups will be normally closed until they come in contact with the handled object. Only the cups needed in the specific lifting cycle will be open and flow air. Please see the video piSAVE sense

      • What is DURAFLEX®?
        • DURAFLEX® is a patented material specially developed to feature the elasticity of rubber and the wear resistance of polyurethane. The DURAFLEX® material is mark-free.

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