189401

Name: Festo 189401 Vacuum suction cup ESS-20-CS
Brand: Festo

Vacuum suction cup ESS-20-CS

The Festo 189401 is a round protective bellows 3.5-fold industrial component featuring a 20 mm suction cup diameter, a 7 mm height compensation, and a nominal width of 3 mm with a 2.75 cm³ suction cup volume. It operates within a pressure range of -95 kPa to 0 kPa and an ambient temperature range of -30 °C to 180 °C, delivering a holding force of 8.2 N and a lateral force of 7 N at a nominal operating pressure of -70 kPa. Designed with an upward connection position, mountable in any position via vacuum connection, and classified under corrosion resistance class 1, this 6.9 g part uses atmospheric air based on ISO 8573-1:2010 [7:-:-] and conforms to VDMA24364 Zone III LABS (PWIS) requirements. Submit the exact part number, quantity, and application requirements for a quote.

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Manufacturer: Festo
Part number: 189401
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Technical Specifications

Suction cup height compensation: 7 mm
Min. workpiece radius: 50 mm
Nominal width: 3 mm
Suction cup diameter: 20 mm
Suction cup volume: 2.75 cm³
Connection position: up
Mounting position: Any
Classication of suction cup holder: Size 4
Suction cup shape: round protective bellows 3.5-fold
Operating pressure: -95 kPa...0 kPa | -0.95 bar...0 bar | -13.775 psi...0 psi
Nominal operating pressure: -70 kPa | -0.7 bar | -10.15 psi
Operating medium: Atmospheric air based on ISO 8573-1:2010 [7:-:-]
Corrosion resistance class (CRC): 1 - Low corrosion stress
LABS (PWIS) conformity: VDMA24364 Zone III
For use in the food industry: See supplementary material information
Ambient temperature: -30 °C...180 °C
Holding force at nominal operating pressure: 8.2 N
Lateral force at nominal operating pressure: 7 N
Product weight: 6.9 g
Type of mounting: Via vacuum connection
Vacuum connection: M6
Color: Transparent
Shore hardness: 50 +/-5
Material of screwed plug: Brass, nickel-plated | Steel, galvanized and chrome-plated

Engineering context

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Our sourcing response is prepared against Festo 189401. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.