Suction cup BL50-3P Polyurethane 30/70

This suction cup is specially designed for plastic bag handling. The unique suction cup fitting allows the high initial flow needed for a secure grip. The dual-hardness suction cup offers better sealing capabilities and more stable and secure handling.

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Description

This suction cup is specially designed for plastic bag handling. The unique suction cup fitting allows the high initial flow needed for a secure grip. The dual-hardness suction cup offers better sealing capabilities and more stable and secure handling.
Features
- 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.
Specifications
General

Application

Bag handling

Suction cup shape

Multibellows

Material

PU30, PU70

Suction cup model

BL-3-P

Weight

24 g

Volume

54 cm³

Suction cup model

BL50-3P

Movement, vertical max.

26 mm

Curve radius, min.

16 mm

Fitting

Fitting option

None

Fitting size

None

Fitting style

None

Fitting type

None

Dimension

Height

53 mm

Outer diameter

48 mm

Performance - lifting forces

BL50-3P

20 -kPa

60 -kPa

90 -kPa

24 N

60 N

75 N

22 N

49 N

60 N

Material

Name

PU30

PU70

Colour

Yellow

Black

Temperature

10 - 50 °C

10 - 50 °C

Hardness

30 °Shore A

70 °Shore A

PU30

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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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
Industries
Packaging
- Bags, sacks and bundles
- Bag and pouch handling
Resources

CAD

Suction cup BL50-3P Polyurethane 30/70

Data sheet

Suction cup BL50-3P Polyurethane 30/70

Manuals

Storage guidelines for suction cups and other rubber products

Brochures

Vacuum Automation - Improve your productivity and energy efficiency

Certificates

RoHS Compliance Statement Suction cups

Certificate of conformaty - EC1935/2004.

White papers

Suction cups enable the vacuum to grip

The road to state-of-the-art car production starts in the press shop

Getting a grip on bags

Filling without spilling
FAQ

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?

Please see our storage guidelines:

Storage guidelines of suction cups and rubber products (pdf)

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.
Accessories/Spare parts
Accessories
- 0113117Fitting G1/2" male, bag
- 0113140Fitting 1/2" NPT male, bag