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Suction cup BL40-3P Polyurethane 30/70, 3/8" NPT male, 0112693


Item no. 0112693

  • High-flow fitting allowing high initial vacuum flow needed for plastic bag handling.
  • Suitable for level adjustment and uneven surfaces.
  • Dual hardness allowing strength and stability in conjunction with softness and flexibility. 
  • DURAFLEX® material features the elasticity of rubber in combination with the wear resistance of polyurethane.
  • The DURAFLEX® material is mark-free.
Metric   Imperial
Curve radius 13 mm
Movement, vertical max. 21 mm
Application Bag handling
Material Polyurethane (PU30), Polyurethane (PU70)
Suction cup model BL-3-P
Suction cup shape Multibellows
Volume 27 cm³
Weight 12 g
Fitting size 3/8"
Fitting style Male
Fitting type NPT-thread
Fitting option None
Height 59.9 mm
Outer diameter 40 mm
Performance — lifting forces
Vertical lifting force Parallel lifting force
20 -kPa 20 N 13 N
60 -kPa 43 N 24 N
90 -kPa 55 N 36 N
Polyurethane (PU30) Polyurethane (PU70)
Colour Yellow Black
Hardness 30 °Shore A 70 °Shore A
Temperature 10 – 50 °C 10 – 50 °C
Material resistance
Polyurethane (PU30) Polyurethane (PU70)
Alcohol N/A N/A
Concentrated acids + +
Ethanol + +
Hydrolysis + +
Methanol - -
Oil +++ +++
Oxidation - -
Petrol + +
Wear resistance +++ +++
Weather and ozone +++ +++

Dimensional drawings

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Spare parts
Item no.
Suction cup BL40-3P Polyurethane 30/70 0112667
Fitting 3/8" NPT male, bag 0112692

Item no.
Fitting G3/8" male, bag 0112662
Support / CAD
Please use desktop version/ordinary computer to download CAD files.
Data sheets
Manuals (1)
Brochures (1)
Certificates (2)
White papers (2)
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 Newton (N)

      • 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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