Many procurement teams check DSNU-50 against Festo Festo, Festo Dsnu 25 50 P A 19221 and Festo Valves before signing purchase orders, verifying quality, compliance, and after-sales support availability.
Festo DSNU-50- - Round Cylinder
The Festo DSNU-50- - Round Cylinder offers rod thread, piston rod end, 50 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-50- - |
Festo DSNU-50- - Round Cylinder – Technical Specifications
| Specification | Value |
|---|---|
| Stroke | 1; 500 |
| Piston diameter | 50 mm |
| Cushioning | Elastic cushioning rings/plates at both ends; Self-adjusting pneumatic end-position cushioning; Pneumatic cushioning, adjustable at both ends |
| Mounting position | optional |
| Design | Piston; Piston rod; Cylinder barrel |
| Position detection | Via proximity switch |
| Variants | 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; Metal scraper; With protection against rotation; High corrosion protection; Dust 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 |
| Theoretical force at 0.6 MPa (6 bar, 87 psi), return stroke | 990 |
| Theoretical force at 0.6 MPa (6 bar, 87 psi), advance stroke | 1178 |
| Moving mass for 0 mm stroke | 413 |
| Additional moving mass per 10 mm stroke | 25 |
| Basic weight for 0 mm stroke | 1087 |
| Additional weight per 10 mm stroke | 40 |
| Type of mounting | With accessories |
| Pneumatic connection | G1/4 |
| 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 |
| Cushioning length | 20 |
| 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 – Trusted Pneumatics for Industrial Excellence
Festo is one of the most respected automation brands in the world. In India, maintenance engineers and OEMs trust Festo for its reliable performance, precise German engineering, and long-lasting durability. Whether in automotive plants, packaging lines, or food processing units, Festo products are known for helping machines run smoother, faster, and with minimal downtime. From basic pneumatic cylinders to intelligent motion systems, Festo delivers proven solutions across industries.
DSNU-50 – Heavy-Duty Cylinder with Broad Customization and ATEX Certification
The Festo DSNU-50 series offers robust linear motion with a piston diameter of 50 mm and a stroke range up to 500 mm, making it suitable for heavy-duty applications. It supports multiple cushioning types—elastic rings, adjustable pneumatic, and self-adjusting end-position cushioning—giving engineers flexibility based on speed and load. Its design includes piston, rod, and stainless-steel barrel, with a G1/4 port for airflow and proximity switch support for position sensing.
What sets this cylinder apart is its wide range of variants: extended rods, male/female threads, rotation protection, axial/lateral air supply, metal scrapers, dust protection, heat-resistant seals (up to 120°C), and ATEX/UKEX certifications. It’s rated for Zone 1, 2, 21, and 22 explosive environments, and supports ambient temperatures up to 120°C. The corrosion resistance class CRC 2/3 and RoHS-compliant materials ensure longevity, even in chemically aggressive or wet environments. With theoretical output forces of 1178 N (advance stroke) and 990 N (return) at 6 bar pressure, the DSNU-50 delivers powerful motion with control.
Where the DSNU-12-70-P-A Fits in – Application Insights
Let’s now look at the Festo DSNU-12-70-P-A, a smaller but precise version of the DSNU family. With a 12 mm piston diameter and 70 mm stroke, it’s ideal for light-duty operations that require accurate, quick actuation. This cylinder is commonly used in pick-and-place units, labelling machines, or compact assembly stations where space is tight but reliability is essential.
For junior engineers, this cylinder helps build foundational knowledge on how motion control works in pneumatic systems. For senior maintenance professionals, its ISO 6432 conformity and easy mounting options mean quicker replacements and fewer errors in high-speed environments. The elastic cushioning ensures quiet operation, and the proximity switch compatibility helps integrate it into automated lines for feedback and safety.
From small component handling to synchronized movement in automation cells, the DSNU-12-70-P-A proves that even compact actuators can play a big role in machine efficiency—especially when backed by Festo's engineering standards.
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