USD 19.90
20mm silicone vacuum suction cup (round bellows, 1.5 convolutions) with M6 thread. Rated for -0.95 bar pressure and -30°C to 180°C in automated handling.
The Festo ESS-20-BS (Part Number 189380) is an industrial-grade vacuum suction cup assembly designed for highly reliable automated material handling. Engineered with a round bellows shape featuring 1.5 convolutions, it excels at gripping delicate, uneven, or curved workpieces with a minimum radius of 40mm. It integrates a 6mm height compensator to seamlessly accommodate variations in part positioning during robotic operations. Manufactured from high-quality transparent Silicone (VMQ) with a 50 Shore hardness, it guarantees stable performance across extreme thermal environments ranging from -30°C up to +180°C. Complete with a secure M6 vacuum connection via a nickel-plated brass and galvanized steel threaded plug, it is optimized for high-cycle pneumatic systems operating at vacuum levels down to -0.95 bar.
| Parameter | Value |
|---|---|
| Suction Cup Diameter | 20 mm |
| Suction Cup Volume | 1.6 cm³ |
| Vacuum Connection | M6 Thread |
| Nominal Size | 3 mm |
| Operating Pressure | -0.95 to 0 bar |
| Ambient Temperature | -30 °C to +180 °C |
| Holding Force | 12.9 N (at nominal pressure) |
| Lateral Force | 8 N (at nominal pressure) |
| Min. Workpiece Radius | 40 mm |
| Shore Hardness | 50 +/- 5 |
| Height Compensator | 6 mm |
| Material | Silicone (VMQ) |
Safely lifting and transferring hot printed circuit boards or glass components directly from curing ovens or soldering stations.
Standard nitrile and polyurethane cups degrade rapidly at high temperatures; the VMQ silicone material ensures stable, non-marking handling up to 180°C without melting.
Handling delicate or contoured food and consumer packaging items using a flexible robotic end-effector.
Rigid flat cups fail to establish a vacuum seal on contoured parts. The 1.5 convolutions bellows design and 6mm height compensator easily adapt to curved surfaces with a tight 40mm minimum radius.
Automated extraction of freshly molded plastic parts with complex and uneven geometries from hot injection molds.
Freshly molded plastics are warm, pliable, and easily scratched. The soft 50 Shore hardness silicone prevents part deformation while providing a secure 12.9 N holding force during the extraction cycle.
