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Festo DSNU-25-400-PPV-A Round Cylinder
The Festo DSNU-25-400-PPV-A Round Cylinder offers M10x1.25 rod thread, Male thread piston rod end, 25 mm diameter, andPiston; Piston rod; Cylinder barrel. Manufactured by Festo under the Festo Round Cylinder category, this model belongs to the DSNU Series.

| Brand | Festo |
| Product Type | ISO Cylinder |
| Product | DSNU-25-400-PPV-A |
Festo DSNU-25-400-PPV-A Round Cylinder – Technical Specifications
| Specification | Value |
|---|---|
| Stroke | 400 |
| Piston diameter | 25 mm |
| Piston rod thread | M10x1.25 |
| Cushioning | Pneumatic cushioning, adjustable at both ends |
| Mounting position | optional |
| Conforms to standard | CETOP RP 52 P; ISO 6432 |
| Design | Piston; Piston rod; Cylinder barrel |
| Piston-rod end | Male thread |
| Position detection | Via proximity switch |
| Variants | Piston rod at one end |
| Operating pressure | 1; 10 |
| Mode of operation | Double-acting |
| Operating medium | Compressed air to ISO 8573-1:2010 [7:4:4] |
| Corrosion resistance class CRC | 2 - Moderate corrosion stress |
| LABS (PWIS) conformity | VDMA24364-B1/B2-L |
| Cleanroom class | Class 6 according to ISO 14644-1 |
| Ambient temperature | -20; 80 |
| Impact energy in end positions | 0.3 |
| Theoretical force at 0.6 MPa (6 bar, 87 psi), return stroke | 247.4 |
| Theoretical force at 0.6 MPa (6 bar, 87 psi), advance stroke | 294.5 |
| Moving mass for 0 mm stroke | 71 |
| Additional moving mass per 10 mm stroke | 6 |
| Basic weight for 0 mm stroke | 238 |
| Additional weight per 10 mm stroke | 11 |
| Type of mounting | With accessories |
| Pneumatic connection | G1/8 |
| Note on materials | RoHS-compliant |
| Material cover | Wrought aluminium alloy; Colourless anodised |
| Material seals | NBR; TPE-U(PU) |
| Material piston rod | High-alloy stainless steel |
| Material cylinder barrel | High-alloy stainless steel |
| Cushioning length | 17 |
Festo – Global Leader in Precision Automation
Festo is a pioneer in industrial automation, known for its German engineering, reliability, and global reach. Whether it's a factory floor in Bengaluru or an R&D lab in Pune, Festo components are trusted for their performance, long life, and intelligent design. The brand is especially respected by Indian maintenance engineers for offering consistent quality, fast availability, and easy integration into automation systems. From automotive lines to pharmaceutical packaging, Festo plays a key role in optimizing machine uptime and operational efficiency.
DSNU-25-400-PPV-A – Long-Stroke Cylinder with Adjustable Cushioning
The DSNU-25-400-PPV-A is a double-acting pneumatic round cylinder designed for long linear motion in precision applications. With a 400 mm stroke length and a 25 mm piston diameter, it offers substantial range and thrust. It features adjustable pneumatic end-position cushioning at both ends, allowing engineers to fine-tune damping for different load conditions—reducing wear and mechanical impact. Built in accordance with ISO 6432, it includes a high-alloy stainless steel piston rod, anodised aluminium cover, and G1/8 port for seamless installation. The cylinder operates between 1–10 bar, handles temperatures from -20°C to +80°C, and is suitable for cleanroom environments (ISO Class 6). It supports position sensing via proximity switches and is compliant with RoHS and VDMA24364 standards.
Applications of Festo DSNU-12-70-P-A in Indian Industries
The DSNU-12-70-P-A model is ideal for compact automation where precision and reliability are crucial. Commonly used in assembly stations, pick-and-place systems, and inspection jigs, this cylinder provides smooth, repeatable motion in tight spaces. Its 70 mm stroke makes it perfect for small tasks such as sliding, pushing, lifting, or indexing lightweight parts. Junior maintenance technicians appreciate how easy it is to install and maintain. Senior engineers value its ability to integrate with sensors, making it suitable for semi-automated workflows. In educational institutions, this model helps students understand real-world pneumatic concepts—like pressure-to-force conversion, end-cushioning adjustment, and feedback-based actuation. The DSNU-12-70-P-A proves that even a small cylinder can play a big role in intelligent automation.




