USD 27.11
50mm round bellows vacuum suction cup with 1.5 convolutions. Features durable NBR material, M6 male thread connection, and 72.6 N holding force at -0.7 bar.
The Festo ESS-50-BN (Part Number: 189390) is a complete vacuum suction cup assembly designed for reliable material handling in industrial automation. Featuring a 50mm round bellows shape with 1.5 convolutions, it provides excellent adaptation to workpieces with curvatures down to a minimum radius of 150 mm. Constructed from durable NBR (Nitrile rubber) with a Shore hardness of 50, it delivers a powerful holding force of 72.6 N at a nominal operating pressure of -0.7 bar. The unit includes an M6 vacuum connection and offers an 11 mm height compensator to handle varying surface heights smoothly. With an operating temperature range of -10°C to 70°C and a lightweight footprint of just 24.7 grams, it is highly optimized for dynamic end-of-arm tooling and robotic transfer systems.
| Parameter | Value |
|---|---|
| Suction Cup Diameter | 50 mm |
| Suction Cup Shape | Round bellows, 1.5 convolutions |
| Vacuum Connection | M6 |
| Holding Force (Nominal) | 72.6 N |
| Lateral Force (Nominal) | 55.5 N |
| Operating Pressure | -0.95 bar to 0 bar |
| Nominal Operating Pressure | -0.7 bar |
| Suction Cup Material | NBR (Nitrile rubber) |
| Shore Hardness | 50 +/- 5 |
| Ambient Temperature | -10 °C to 70 °C |
| Product Weight | 24.7 g |
| Suction Cup Volume | 14.23 cm³ |
| Height Compensator | 11 mm |
| Min. Workpiece Radius | 150 mm |
Handling and transferring sealed packages, corrugated boxes, and items with uneven surface profiles during automated end-of-line sorting.
Standard flat suction cups frequently lose vacuum seal on height-varying or uneven packaging; the 1.5 convolutions and 11mm height compensator actively adapt to inconsistent profiles to maintain a tight seal.
Lifting and manipulating formed sheet metal components in automotive or appliance manufacturing presses.
Workpieces with curvatures (down to 150 mm radius) are difficult to grip securely without deformation. The NBR material and 50mm diameter provide a stable 72.6 N grip while preventing part slippage (55.5 N lateral force).
Rapid, high-cycle transfer of mechanical components using robotic end-of-arm tooling (EOAT).
Heavy end effectors decrease robotic arm speed and efficiency. Weighing only 24.7 grams, this suction cup assembly minimizes payload overhead while still delivering a robust pneumatic hold via its M6 vacuum connection.
