In most procurement cycles, DSNU-20-25-P-A-19208 is considered with Festo Festo, Festo Dsnu 25 50 P A 19221 and Festo Valves, giving decision-makers confidence that they’ve chosen the most dependable component.
Festo DSNU-20-25-P-A Round Cylinder
The Festo DSNU-20-25-P-A Round Cylinder offers M8 rod thread, Male thread piston rod end, 20 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-20-25-P-A |
Festo DSNU-20-25-P-A Round Cylinder – Technical Specifications
| Specification | Value |
|---|---|
| Stroke | 25 |
| Piston diameter | 20 mm |
| Piston rod thread | M8 |
| Cushioning | Elastic cushioning rings/plates 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 | 0.2 |
| Theoretical force at 0.6 MPa (6 bar, 87 psi), return stroke | 158.3 |
| Theoretical force at 0.6 MPa (6 bar, 87 psi), advance stroke | 188.5 |
| Moving mass for 0 mm stroke | 44 |
| Additional moving mass per 10 mm stroke | 4 |
| Basic weight for 0 mm stroke | 186.8 |
| Additional weight per 10 mm stroke | 7.2 |
| 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 |
Festo – Engineering Precision in Motion
Festo is a global leader in industrial automation technology, known for its high-quality pneumatic and electrical control systems. With German engineering at its core, Festo has earned the trust of engineers across automotive, pharmaceutical, packaging, and electronics industries. Whether it's a complex assembly line or a simple actuator system, Festo products stand out for their precision, reliability, and long service life.
Technical Overview: DSNU-20-25-P-A Pneumatic Cylinder
The DSNU-20-25-P-A is a double-acting round cylinder designed to meet international standards like ISO 6432 and CETOP RP 52 P. It offers a 25 mm stroke length with a 20 mm piston diameter, ideal for medium-force linear motion applications. The piston rod uses a M8 male thread, and the cylinder can be easily mounted with optional accessories.
Cushioning is handled by elastic rings/plates at both ends, providing gentle deceleration and reducing shock loads during piston movement. With a working pressure range of 1 to 10 bar, this model delivers an advance stroke force of 188.5 N and a return stroke force of 158.3 N at 6 bar pressure. Constructed with anodised aluminium and high-alloy stainless steel, it's suited for moderate corrosion environments (CRC class 2) and conforms to cleanroom class 6 standards. The G1/8 pneumatic port and proximity switch compatibility make it integration-friendly for modern automation setups.
Applications of Festo Round Cylinder DSNU-12-70-P-A
The DSNU-12-70-P-A is widely used in scenarios that demand precise and consistent linear motion over a longer stroke. One common use is in packaging lines, where it helps push or separate items on a conveyor without jerks or delays. Its compact round body allows for easy installation in tight spaces, making it suitable for machinery with limited clearance.
In assembly fixtures, this cylinder is used for controlled pushing or pressing operations, such as positioning components for screwing or welding. Thanks to its compatibility with proximity switches, it provides feedback for accurate positioning, which is essential in automated cycles. For maintenance engineers, it’s a reliable choice due to its low wear rate and standard design. For students, this cylinder demonstrates fundamental pneumatic principles in practical lab settings.
Its predictable behavior, ease of installation, and support for sensors make the DSNU-12-70-P-A a smart choice for both new designs and retrofit automation systems.




