Read the surface
Flat, curved, textured, oily, hot, fragile, and porous surfaces each demand a different lip geometry and compound.
Category 2 of 5
Flat, bellows, oval, foam and special-function cups across the full diameter range.
Selection framework
Begin with the workpiece and cycle, then verify performance, interfaces, environment, and maintenance needs against the family data.
Flat, curved, textured, oily, hot, fragile, and porous surfaces each demand a different lip geometry and compound.
Use effective cup area, working vacuum, acceleration, orientation, friction, and a suitable safety factor.
Flat cups favor fast cycles. Bellows cups add compliance. Oval cups fit narrow parts. Foam seals adapt to uneven surfaces.
Match material to temperature and media, then make inspection and replacement part of the maintenance interval.
2.1
The default first choice for flat, rigid, reasonably smooth workpieces. Short cycle time, minimal inner volume, no lateral drift under acceleration. Available in rubber and in polyurethane where abrasion resistance matters.
2.3
Compounds chosen for oil, wear and ozone resistance, with a lip profile that resists lateral slip on lubricated sheet.
2.4
Tuned for one industry each: wood, glass and rough or textured surfaces.
2.5
Where a single cup has to carry the load. High pull-out force at the cost of inner volume and evacuation time.
2.6
Replaceable wearing parts on a reusable body, so the consumable cost of heavy handling stays low.
2.7
One and a half convolutions: enough stroke to absorb height tolerance and cushion the approach, without the lateral softness of a deep bellows.
2.8
2.5 and 4.5 folds for large height differences and for lifting a workpiece clear before traversing.
2.9
General-purpose bellows in rubber and polyurethane compounds. Polyurethane where abrasion resistance and non-marking both matter.
2.10
Sealing geometries for soft packaging, spherical bodies and thin sheet that must not deform.
2.12
A closed-cell foam face that seals across joints, perforations, ribs and coarse texture. Circular and rectangular.
2.13
Nozzle, annular, high-temperature, non-contact Bernoulli, swivelling and electrically conductive designs.
Application review
Send the workpiece, load, cycle time, surface condition, and available utilities. AYBmart can help identify the families worth testing.