Festo ESS-40-BN Vacuum Suction Cup

USD 23.88

40mm Festo NBR vacuum suction cup with 1.5 convolutions and M6 connection. Delivers 52.3N holding force at -0.7 bar with 9.5mm height compensation.

SKU Festo-189386 Category
Top Brands > Festo > Vacuum Suction Cups

Festo ESS-40-BN Vacuum Suction Cup

Model Identifier ESS-40-BN
Official Part Number 189386
GTIN Standard 4052568042547

Technical Overview

The Festo ESS-40-BN (part number 189386) is an industrial-grade vacuum suction cup engineered for reliable workpiece handling in automation systems. Featuring a 40mm diameter and a round bellows design with 1.5 convolutions, it incorporates a 9.5 mm height compensator to seamlessly adapt to uneven surfaces. Constructed from durable Nitrile rubber (NBR) with a Shore hardness of 50, it delivers a robust 52.3 N holding force at a nominal operating pressure of -0.7 bar. It includes an M6 vacuum connection, guarantees a 32.5 N lateral force, and is suitable for operating environments ranging from -10°C to +70°C.

Key Features

  • 40mm diameter with round bellows shape (1.5 convolutions)
  • Holding force of 52.3 N at -0.7 bar nominal operating pressure
  • Lateral force resistance of 32.5 N for high-speed dynamic handling
  • Integrated 9.5 mm height compensator for uneven workpieces
  • Durable Nitrile rubber (NBR) construction (Shore hardness 50 ± 5)
  • Secure M6 top vacuum connection
  • Wide ambient temperature operating range from -10 °C to +70 °C

9.5mm height compensator with 1.5 convolutions for gripping uneven or curved surfaces.

Technical Specification Matrix

ParameterValue
Suction Cup Diameter40 mm
Suction Cup ShapeRound bellows, 1.5 convolutions
Holding Force (-0.7 bar)52.3 N
Lateral Force (-0.7 bar)32.5 N
Height Compensator9.5 mm
Suction Cup Volume8.87 cm³
Minimum Workpiece Radius90 mm
Operating Pressure-0.95 to 0 bar
Vacuum ConnectionM6
MaterialNitrile rubber (NBR)
Shore Hardness50 ± 5
Ambient Temperature-10 °C to 70 °C
Product Weight18.7 g

Industrial Applications

1. Automated Packaging and Box Handling

Gripping and transferring corrugated cardboard boxes or packaging materials in end-of-line packaging systems.

Problem Solved

The 1.5 convolutions and 9.5mm height compensation allow the suction cup to securely grip varying heights and slightly textured corrugated surfaces without losing vacuum seal.

Packaging AutomationEnd-of-Line TransferHeight CompensationVacuum Gripping

2. Sheet Metal and Press Tending

Lifting and manipulating slightly curved or uneven sheet metal components in automotive or appliance manufacturing presses.

Problem Solved

Provides a high lateral force resistance of 32.5 N and holding force of 52.3 N, ensuring that curved metal parts (minimum radius 90 mm) do not slip during fast robotic transfers.

Sheet Metal StampingPress TendingLateral Force ResistanceWorkpiece Handling

3. Plastic Parts De-Molding

Extracting warm, newly molded plastic components from injection molding machines using robotic end-effectors.

Problem Solved

The NBR material withstands ambient temperatures up to 70°C, and the bellows design adapts to the molded part's contours without causing surface deformation.

Injection MoldingDe-molding End-EffectorsHigh Temperature HandlingContoured Part Extraction

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