FESTO DNU-50-400-PPV-A 32477

Festo DNU-50-400-PPV-A Pneumatic Standard Cylinder

Description

This is a DNU series double-acting pneumatic cylinder from Festo, designed according to ISO 6431 standards. It is a reliable and durable solution for linear actuation in automated systems. This particular model features a 50 mm piston diameter and a 400 mm stroke length. The integrated PPV-A functionality provides adjustable pneumatic cushioning at both ends, which allows for controlled deceleration, reducing mechanical shock and operational noise.

Specifications

• Manufacturer: Festo
• Type: DNU-50-400-PPV-A
• Part Number: 32477
• Actuation: Double-acting
• Piston Diameter (Bore): 50 mm
• Stroke Length: 400 mm
• Cushioning: Pneumatic cushioning, adjustable at both ends (PPV-A)
• Maximum Operating Pressure: 12 bar
• Standard: Conforms to ISO 6431
• Piston Rod Thread: Male Thread

Label Info

• FESTO
• DNU-50-400
• PPV-A
• 32477 R2
• pmax. 12 bar

Application

Ideal for a wide range of applications in factory automation, including clamping, lifting, pressing, and positioning tasks where reliable and controlled linear movement is required.

Country of Origin

This product is manufactured in Germany.

CO2 Impact

Choosing this pre-owned component saves an estimated 31.2 kg of CO2 compared to a new purchase, contributing to a more sustainable industrial operation.

Availability

This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

What is the significance of the ‘PPV-A’ designation in the model number?

The ‘PPV-A’ indicates that this cylinder features pneumatic cushioning that is adjustable at both ends. This allows for controlled deceleration at the end of the stroke, reducing impact and wear on the cylinder and machinery, as well as minimizing noise.

Can this DNU series cylinder be directly replaced with a modern DSBC series cylinder without mechanical modifications?

Yes, for the most part. Both the DNU and the current DSBC series conform to the ISO 15552 standard (previously ISO 6431). This means their mounting dimensions, piston rod height, and piston rod thread are standardized, allowing for a direct mechanical swap in most applications. However, always verify overall length and port positions if space is critical.

What type of sensors can be used with this cylinder for position feedback?

This DNU cylinder has T-slots on its profile barrel designed for proximity sensors. You can use Festo SMT-8M or SME-8M series sensors, or compatible third-party T-slot sensors, to detect the piston’s end positions or intermediate positions.

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Last Update: Friday, March 13, 2026