Maintenance teams planning replacements for DSNU-25 frequently review Festo Festo, Festo Dsnu 25 50 P A 19221 and Festo Valves to prevent downtime, checking availability and compatibility with existing systems.
Festo DSNU-25- - Round Cylinder
The Festo DSNU-25- - Round Cylinder offers rod 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- - |
Festo DSNU-25- - Round Cylinder – Technical Specifications
| Specification | Value |
|---|---|
| Stroke | 1; 500 |
| Piston diameter | 25 mm |
| Cushioning | Elastic cushioning rings/plates at both ends; Self-adjusting pneumatic end-position 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 |
| Position detection | Via proximity switch |
| Variants | Increased chemical resistance; Extended male piston rod thread; Piston rod with female thread; Custom thread on the piston rod; Piston rod with male thread shortened at one end; Extended piston rod; Clamping unit on the piston rod; Axial supply port; With direct mounting; Lateral supply port; With protection against rotation; High corrosion protection; Uniform, slow movement; Low friction; Through piston rod; Heat-resistant seals max. 120°C; 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] |
| Explosion protection certification outside the EU | EPL Db (GB); EPL Gb (GB) |
| Explosion protection | Zone 1 (ATEX); Zone 1 (UKEX); Zone 2 (ATEX); Zone 21 (ATEX); Zone 21 (UKEX); Zone 22 (ATEX) |
| ATEX category gas | II 2G |
| ATEX category dust | II 2D |
| Corrosion resistance class CRC | 2 - Moderate corrosion stress; 3 - high corrosion stress |
| LABS (PWIS) conformity | VDMA24364-B1/B2-L; VDMA24364 zone III |
| Ambient temperature | -20; 120 |
| Impact energy in end positions | 0.3 |
| Theoretical force at 0.6 MPa (6 bar, 87 psi), advance stroke | 247; 295 |
| Type of mounting | With accessories |
| Pneumatic connection | G1/8 |
| Note on materials | RoHS-compliant |
| Material cover | Wrought aluminium alloy |
| Material seals | NBR; TPE-U(PU) |
| Material piston rod | High-alloy stainless steel |
| Material cylinder barrel | High-alloy stainless steel |
| Explosion ignition protection type for gas | Ex h IIC T4 Gb |
| Explosion ignition protection type for dust | Ex h IIIC T120°C Db |
| Explosion ambient temperature | -20°C <= Ta <= +60°C |
| Protection against torque/guide | Square piston rod |
Festo – Engineering Performance Trusted Across the World
Festo is a global leader in industrial automation, known for precision, innovation, and long-term reliability. In India’s diverse industries—from process plants to assembly lines—Festo’s pneumatic products are trusted by maintenance teams and design engineers alike. Their components are not just parts—they’re engineered solutions built to last in demanding industrial environments.
DSNU-25- - 193991 – Versatile, Durable, and Explosion-Proof Pneumatic Cylinder
The DSNU-25- series stands out with its 25 mm piston diameter and a variable stroke range of 1 to 500 mm. This model features multiple cushioning options, including elastic rings, self-adjusting cushioning, and adjustable pneumatic cushioning, making it adaptable to a wide variety of motion control needs. It supports position detection, and includes a broad set of variants like high corrosion protection, through piston rod, low-friction operation, and heat-resistant seals up to 120°C. Certified for explosive zones (ATEX and UKEX) with corrosion resistance class CRC 2 and 3, it's built for extreme industrial environments, including Zone 1/21/22 operations. Its high-alloy stainless steel construction, G1/8 ports, and custom mounting options make it a high-performance, all-terrain pneumatic solution for Indian factories and plants.
Application Insights – DSNU-12-70-P-A in Real Workplaces
The DSNU-12-70-P-A cylinder is ideal for compact automation where space is limited but consistent performance is critical. It's commonly used in inspection stations, pick-and-place mechanisms, and feeder systems. For junior maintenance engineers, it provides a reliable, maintenance-friendly actuator that’s easy to understand and integrate. Senior engineers value its long-life seals, precise stroke performance, and the ability to fine-tune motion using proximity-based position feedback. For engineering students, it serves as a hands-on introduction to double-acting pneumatic motion with clear principles of stroke, cushioning, and material selection. By studying and applying this cylinder, they gain real-world insights into how automation runs efficiently across industries—from automotive to food processing.
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