ESS-50-BS Festo Suction Cup Complete

USD 27.82

50mm bellows suction cup with 72.6N holding force. 1.5 convolutions, VMQ (silicone) material, and suitable for workpieces with a 150mm+ radius.

SKU Festo-189392 Category
Vacuum suction cups

ESS-50-BS Festo Suction cup complete

Model Identifier ESS-50-BS
Official Part Number 189392
GTIN Standard 4052568042592

Technical Overview

The ESS-50-BS is a complete suction cup assembly designed for vacuum technology applications. It features a round bellows shape with 1.5 convolutions, enabling an 11mm height compensation for workpieces. Manufactured from VMQ (silicone) with a transparent finish, it offers a wide operating temperature range from -30 °C to 180 °C and is suitable for various industrial environments, including food processing (subject to material information). The assembly includes an M6 vacuum connection and is compatible with size 4 suction-cup holders.

Key Features

  • Round bellows 1.5 convolutions shape for height compensation
  • High-temperature VMQ (silicone) material construction
  • Transparent color for visual monitoring
  • Versatile optional mounting position
  • RoHS-compliant materials
  • Suitable for atmospheric air based on ISO 8573-1:2010
  • High holding force of 72.6 N

Round bellows 1.5 convolutions design providing 11mm height compensation and a holding force of 72.6 N at nominal operating pressure.

Technical Specification Matrix

ParameterValue
Height compensator for suction cup11 mm
Min. workpiece radius150 mm
Nominal size3 mm
Suction cup diameter50 mm
Suction cup volume14.23 cm³
Position of connectionTop
Mounting positionoptional
Symbol00991485
Correlation to suction-cup holderSize 4
Suction cup shapeRound bellows 1.5 convolutions
Operating pressure (MPa)-0.095 MPa ... 0 MPa
Operating pressure (bar)-0.95 bar ... 0 bar
Operating pressure (psi)-13.775 psi ... 0 psi
Nominal operating pressure (MPa)-0.07 MPa
Nominal operating pressure (bar)-0.7 bar
Nominal operating pressure (psi)-10.15 psi
Operating mediumAtmospheric air based on ISO 8573-1:2010 [7:-:-]
Corrosion resistance class CRC1 - Low corrosion stress
LABS (PWIS) conformityVDMA24364 zone III
Suitable for use with foodSee supplementary material information
Ambient temperature-30 °C ... 180 °C
Holding force at nominal operating pressure72.6 N
Lateral force at nominal operating pressure38 N
Product weight24.7 g
Type of mountingVia vacuum port
Vacuum connectionM6
ColourTransparent
Shore hardness50 +/- 5
Material screwed plugNickel-plated wrought aluminium alloy Nickel-plated brass Steel, galvanised and chrome-plated
Note on materialsRoHS-compliant
Material suction cupVMQ (silicone)

Industrial Applications

1. High-Temperature Plastic Injection Molding Part Extraction

Automated extraction of freshly molded, high-temperature plastic components from injection molding machines using a robotic end-of-arm tool.

Problem Solved

Standard nitrile or polyurethane suction cups degrade or melt when handling newly molded, hot plastic parts. The ESS-50-BS uses VMQ (silicone) material capable of withstanding temperatures up to 180 °C. Additionally, the 1.5 convolution bellows and 11 mm height compensator allow the cup to adapt to curved or slightly uneven molded surfaces with a minimum radius of 150 mm, preventing dropped parts during high-speed extraction.

VMQ (silicone)180 °C ambient temperature11 mm height compensator1.5 convolutions bellows72.6 N holding force

2. Automated Packaging of Hot Food Trays

Picking and placing hot, freshly sealed food trays or baked goods in an automated packaging line directly after the oven or heat-sealing station.

Problem Solved

Moving hot food items requires end-of-arm tooling that is both heat-resistant and compliant with food safety standards. The VMQ material is food-compatible and withstands high process temperatures up to 180 °C. The 50 mm suction cup provides a strong 72.6 N holding force at -0.7 bar nominal pressure to lift heavy meal trays, while the bellows design accommodates variations in tray lid height without crushing the food.

Suitable for use with foodTransparent VMQ50 mm suction cup diameter180 °C ambient temperatureNominal operating pressure -0.7 bar

3. Automotive Curved Glass and Windshield Handling

Lifting, tilting, and positioning contoured windshields or warm glass panes during the automotive assembly or glass tempering process.

Problem Solved

Handling curved glass panels requires a vacuum pad that conforms precisely to the contour without leaving permanent chemical marks or slipping during vertical orientation. The 1.5 convolution bellows and 150 mm minimum workpiece radius allow the cup to securely seal against curved windshields. The 38 N lateral force rating ensures the glass does not slip when the robotic arm tilts the pane vertically, while the soft Shore hardness 50 silicone prevents scratching.

Min. workpiece radius 150 mm38 N lateral forceRound bellows 1.5 convolutionsShore hardness 50 +/- 5M6 vacuum connection

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