30mm NBR Flat Steel Stamping Cup SFF30N-60-M10M
Vacuforce SFF30N-60-M10M is a 30mm heavy-duty flat suction cup in nitrile rubber (NBR), 60 Shore A, for high-speed sheet-metal and stamped-part transfer.
The SFF design is intended for lateral movement and applications with wet or oily workpieces, including steel parts that may be reoriented. This variant uses M10 male metric thread. Actual shear performance must be checked against oil films, acceleration and the real panel surface.
Technical Specifications
| HTS Code | 4016.99.6050 |
| Model | SFF30N-60-M10M |
| Cup Style | flat cleated |
| Nominal Cup Size | 30mm |
| Cup Material | nitrile rubber (NBR) |
| Vacuum / Mounting Connection | M10 male metric thread |
| Main Application | Steel stamping and pressed sheet-metal handling |
| Material Hardness | 60 Shore A |
Selection & Application Guidance
The SFF design is intended for lateral movement and applications with wet or oily workpieces, including steel parts that may be reoriented. This variant uses M10 male metric thread. Actual shear performance must be checked against oil films, acceleration and the real panel surface. The lifting-force figures shown are theoretical; choose the working load using the correct design factor and production trials.
Product Features & Existing Technical Details
- Automotive steel stamping
- Temperature Range -40C to +120C / -40F to +248F
- Glass handling
- Plywood transfer
- Handling of oily steel surfaces
- Concave and convex surfaces
- Large box & carton handling
Typical Applications
- Press automation and automotive body-panel transfer
- Wet or oily stamped steel blanks
- Sheet-metal transfer with lateral acceleration
- Selected 90-degree reorientation and shear-plane handling after testing
Important: Product suitability depends on the actual operating conditions. Confirm dimensions, connections, material compatibility, vacuum or pressure requirements, cycle conditions and any required safety factor before final machine integration.
Estimated Lifting Force at 24"Hg
Theoretical lifting force is calculated from the cup's nominal sealing area at approximately 80% vacuum. At sea level, 80% vacuum corresponds to approximately 11.76 PSI differential pressure.
Lifting Force Calculation
| Calculation Step | Metric | Imperial |
|---|---|---|
| Nominal Area | π × (1.5cm radius)² = 7.1cm² | π × (0.591in radius)² = 1.1in² |
| Vacuum Level | 80% vacuum | 24"Hg / 11.76 PSI differential |
| Estimated Theoretical Lift | 7.1 × 0.8 = 5.7kg | 1.1 × 11.76 = 12.9lb |
Important: Lifting force is theoretical and must not be used as the final working load without an appropriate engineering safety factor. Actual holding force depends on vacuum level, surface condition, porosity, cup orientation, acceleration, leakage and dynamic loading.
Frequently Asked Questions
Why use a 30mm flat SFF cup for stamped steel?+
Its flat, traction-oriented geometry is intended for high-speed lateral transfer on flat or gently formed sheet-metal surfaces, including wet or oily stampings. Confirm contact area and lateral grip under production conditions.
What is the difference between 45 and 60 Shore A NBR?+
This model is 60 Shore A. A softer 45 Shore A compound generally conforms more easily; a firmer 60 Shore A compound can provide greater dimensional support. Validate marking, seal and wear on the actual workpiece.
Can SFF cups handle sideways or shear loads?+
The SFF family is designed for lateral transfer and some 90-degree part reorientation, but actual shear capacity depends on the friction coefficient, oil film, vacuum level, acceleration and surface. Axial lifting force alone cannot establish allowable sideways load.
What fitting is provided with SFF30N-60-M10M?+
The specified connection is M10 male metric thread. Select the exact mating thread or quick-connect interface before fitting the cup to end-of-arm tooling.
Why use NBR for steel handling?+
NBR is commonly selected in automotive and metalworking environments because of its oil resistance and wear characteristics. Verify chemical compatibility with the particular forming lubricant and parts-cleaning process.
How many cups are needed to lift a steel blank?+
Determine blank mass, centre of gravity, flex, orientation and robot acceleration. Consider dynamic, shear and peel loading; apply a suitable engineering safety factor and confirm the layout by testing.
Are theoretical 80% vacuum force figures guaranteed?+
The published lifting values are theoretical axial estimates at a stated vacuum level, not a rated safe working load. Account for acceleration, friction, leakage, surface condition and orientation; confirm the cup layout through application trials.
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