FESTO DSNU-S Series Short Round Cylinder — ISO 6432 Double-Acting Corrosion-Resistant Cylinder (101 Models) Specs & Selection Guide
2026-06-13
The FESTO DSNU-S series is a shorter and thinner derivative of the standard DSNU round cylinder, based on the ISO 6432 standard. While maintaining the same stroke lengths as the DSNU, the DSNU-S is up to 35 mm shorter and up to 40% narrower — making it the ideal choice for extremely tight installation spaces. Manufactured from high-toughness materials for exceptional durability, it also uses less material for more sustainable production. The DSNU-S is part of the Festo Core Range, ensuring fast global availability.
Key Product Highlights
- Ultra-Compact Design: Up to 35 mm shorter and 40% narrower than the standard DSNU — perfect for confined spaces
- Lightweight: Ideal for moving loads and robotic end-of-arm applications
- Self-Adjusting PPS Cushioning: Saves commissioning time with automatic load and speed adaptation
- Easy Installation: Central threaded mounting with wrench flats for convenient operation
- Corrosion-Resistant Stainless Steel Piston Rod: Low-wear seals ensure long service life
- Easy Position Sensing: Compatible with SDBT-MSX proximity sensors with auto-teach
- Battery Manufacturing Ready: Multiple variants recommended for lithium-ion battery production systems
- Sustainable Production: Eco-friendly design through reduced material usage
Technical Specifications
| Parameter | Specification |
|---|---|
| Standard | ISO 6432 |
| Mode of Operation | Double-acting |
| Piston Diameter | 8, 12, 16, 20, 25 mm |
| Stroke Range | 1 – 200 mm |
| Cushioning Types | P (elastic cushioning), PPS (self-adjusting pneumatic) |
| Operating Pressure | Max. 10 bar |
| Temperature Range | -20 °C to +80 °C |
| Piston Rod Thread | External thread |
| Position Sensing | Via proximity sensor (compatible with SDBT-MSX) |
| Mounting | Central thread mounting; optional flange/foot mounting |
DSNU-S Model Number Breakdown
The complete DSNU-S model number format is: DSNU-S-[Bore]-[Stroke]-[Cushioning]-[Variant]
- DSNU-S: Round cylinder, double-acting, short type, ISO 6432
- Bore: 8 / 12 / 16 / 20 / 25 mm
- Stroke: 1 – 200 mm
- Cushioning: P (elastic), PPS (self-adjusting pneumatic)
- Variant: MQ/MX (standard), F1A (food-grade), etc.
Example: DSNU-S-16-50-PPS-A-MQ = DSNU-S Series, 16mm bore, 50mm stroke, self-adjusting pneumatic cushioning, MQ variant
Complete Model List (101 Models)
The complete DSNU-S series model list covers all bore sizes from 8 mm to 25 mm, strokes from 1 mm to 200 mm, both cushioning types (P/PPS), and multiple variants. All 101 models are sorted by bore size → stroke → cushioning type.
| No. | Model | Bore (mm) | Stroke (mm) | Cushioning | Part No. |
|---|---|---|---|---|---|
| 1 | DSNU-S-8- -F1A- | 8 | F1A Food-Grade | 8148785 | |
| 2 | DSNU-S-8- – | 8 | 8112002 | ||
| 3 | DSNU-S-8-10-P-A-MQ | 8 | 10 | Elastic | 5205897 |
| 4 | DSNU-S-8-15-P-A-MQ | 8 | 15 | Elastic | 5205898 |
| 5 | DSNU-S-8-20-P-A-MQ | 8 | 20 | Elastic | 5205899 |
| 6 | DSNU-S-8-25-P-A-MQ | 8 | 25 | Elastic | 5205900 |
| 7 | DSNU-S-8-30-P-A-MQ | 8 | 30 | Elastic | 5205902 |
| 8 | DSNU-S-8-40-P-A-MQ | 8 | 40 | Elastic | 5205903 |
| 9 | DSNU-S-8-50-P-A-MQ | 8 | 50 | Elastic | 5205904 |
| 10 | DSNU-S-8-60-P-A-MQ | 8 | 60 | Elastic | 5205905 |
| 11 | DSNU-S-8-80-P-A-MQ | 8 | 80 | Elastic | 5205906 |
| 12 | DSNU-S-8-100-P-A-MQ | 8 | 100 | Elastic | 5205907 |
| 13 | DSNU-S-12- -F1A- | 12 | F1A Food-Grade | 8148786 | |
| 14 | DSNU-S-12- – | 12 | 8112003 | ||
| 15 | DSNU-S-12-10-P-A-MQ | 12 | 10 | Elastic | 5211896 |
| 16 | DSNU-S-12-15-P-A-MQ | 12 | 15 | Elastic | 5211897 |
| 17 | DSNU-S-12-20-P-A-MQ | 12 | 20 | Elastic | 5211898 |
| 18 | DSNU-S-12-25-P-A-MQ | 12 | 25 | Elastic | 5211899 |
| 19 | DSNU-S-12-30-P-A-MQ | 12 | 30 | Elastic | 5211900 |
| 20 | DSNU-S-12-40-P-A-MQ | 12 | 40 | Elastic | 5211901 |
| 21 | DSNU-S-12-50-P-A-MQ | 12 | 50 | Elastic | 5211903 |
| 22 | DSNU-S-12-60-P-A-MQ | 12 | 60 | Elastic | 5211904 |
| 23 | DSNU-S-12-80-P-A-MQ | 12 | 80 | Elastic | 5211905 |
| 24 | DSNU-S-12-100-P-A-MQ | 12 | 100 | Elastic | 5211906 |
| 25 | DSNU-S-12-125-P-A-MQ | 12 | 125 | Elastic | 5211908 |
| 26 | DSNU-S-12-150-P-A-MQ | 12 | 150 | Elastic | 5211909 |
| 27 | DSNU-S-16- -F1A- | 16 | F1A Food-Grade | 8148787 | |
| 28 | DSNU-S-16- – | 16 | 8112004 | ||
| 29 | DSNU-S-16-10-P-A-MQ | 16 | 10 | Elastic | 5216087 |
| 30 | DSNU-S-16-15-P-A-MQ | 16 | 15 | Elastic | 5216088 |
| 31 | DSNU-S-16-20-P-A-MQ | 16 | 20 | Elastic | 5216089 |
| 32 | DSNU-S-16-25-P-A-MQ | 16 | 25 | Elastic | 5216090 |
| 33 | DSNU-S-16-25-PPS-A-MQ | 16 | 25 | Self-Adj. Pneumatic | 5217238 |
| 34 | DSNU-S-16-30-P-A-MQ | 16 | 30 | Elastic | 5216091 |
| 35 | DSNU-S-16-30-PPS-A-MQ | 16 | 30 | Self-Adj. Pneumatic | 5217239 |
| 36 | DSNU-S-16-40-P-A-MQ | 16 | 40 | Elastic | 5216093 |
| 37 | DSNU-S-16-40-PPS-A-MQ | 16 | 40 | Self-Adj. Pneumatic | 5217240 |
| 38 | DSNU-S-16-50-P-A-MQ | 16 | 50 | Elastic | 5216094 |
| 39 | DSNU-S-16-50-PPS-A-MQ | 16 | 50 | Self-Adj. Pneumatic | 5217241 |
| 40 | DSNU-S-16-60-P-A-MQ | 16 | 60 | Elastic | 5216095 |
| 41 | DSNU-S-16-60-PPS-A-MQ | 16 | 60 | Self-Adj. Pneumatic | 5217242 |
| 42 | DSNU-S-16-80-P-A-MQ | 16 | 80 | Elastic | 5216096 |
| 43 | DSNU-S-16-80-PPS-A-MQ | 16 | 80 | Self-Adj. Pneumatic | 5217243 |
| 44 | DSNU-S-16-100-P-A-MQ | 16 | 100 | Elastic | 5216098 |
| 45 | DSNU-S-16-100-PPS-A-MQ | 16 | 100 | Self-Adj. Pneumatic | 5217244 |
| 46 | DSNU-S-16-125-P-A-MQ | 16 | 125 | Elastic | 5216099 |
| 47 | DSNU-S-16-125-PPS-A-MQ | 16 | 125 | Self-Adj. Pneumatic | 5217245 |
| 48 | DSNU-S-16-150-P-A-MQ | 16 | 150 | Elastic | 5216100 |
| 49 | DSNU-S-16-150-PPS-A-MQ | 16 | 150 | Self-Adj. Pneumatic | 5217246 |
| 50 | DSNU-S-16-200-P-A-MQ | 16 | 200 | Elastic | 5216101 |
| 51 | DSNU-S-16-200-PPS-A-MQ | 16 | 200 | Self-Adj. Pneumatic | 5217248 |
| 52 | DSNU-S-20- -F1A- | 20 | F1A Food-Grade | 8148788 | |
| 53 | DSNU-S-20- – | 20 | 8112005 | ||
| 54 | DSNU-S-20-10-P-A-MX | 20 | 10 | Elastic | 5224633 |
| 55 | DSNU-S-20-15-P-A-MX | 20 | 15 | Elastic | 5224634 |
| 56 | DSNU-S-20-20-P-A-MX | 20 | 20 | Elastic | 5224635 |
| 57 | DSNU-S-20-25-P-A-MX | 20 | 25 | Elastic | 5224636 |
| 58 | DSNU-S-20-25-PPS-A-MX | 20 | 25 | Self-Adj. Pneumatic | 5225836 |
| 59 | DSNU-S-20-30-P-A-MX | 20 | 30 | Elastic | 5224637 |
| 60 | DSNU-S-20-30-PPS-A-MX | 20 | 30 | Self-Adj. Pneumatic | 5225837 |
| 61 | DSNU-S-20-40-P-A-MX | 20 | 40 | Elastic | 5224639 |
| 62 | DSNU-S-20-40-PPS-A-MX | 20 | 40 | Self-Adj. Pneumatic | 5225838 |
| 63 | DSNU-S-20-50-P-A-MX | 20 | 50 | Elastic | 5224641 |
| 64 | DSNU-S-20-50-PPS-A-MX | 20 | 50 | Self-Adj. Pneumatic | 5225839 |
| 65 | DSNU-S-20-60-P-A-MX | 20 | 60 | Elastic | 5224642 |
| 66 | DSNU-S-20-60-PPS-A-MX | 20 | 60 | Self-Adj. Pneumatic | 5225840 |
| 67 | DSNU-S-20-80-P-A-MX | 20 | 80 | Elastic | 5224643 |
| 68 | DSNU-S-20-80-PPS-A-MX | 20 | 80 | Self-Adj. Pneumatic | 5225841 |
| 69 | DSNU-S-20-100-P-A-MX | 20 | 100 | Elastic | 5224644 |
| 70 | DSNU-S-20-100-PPS-A-MX | 20 | 100 | Self-Adj. Pneumatic | 5225842 |
| 71 | DSNU-S-20-125-P-A-MX | 20 | 125 | Elastic | 5224645 |
| 72 | DSNU-S-20-125-PPS-A-MX | 20 | 125 | Self-Adj. Pneumatic | 5225843 |
| 73 | DSNU-S-20-150-P-A-MX | 20 | 150 | Elastic | 5224646 |
| 74 | DSNU-S-20-150-PPS-A-MX | 20 | 150 | Self-Adj. Pneumatic | 5225844 |
| 75 | DSNU-S-20-200-P-A-MX | 20 | 200 | Elastic | 5224647 |
| 76 | DSNU-S-20-200-PPS-A-MX | 20 | 200 | Self-Adj. Pneumatic | 5225846 |
| 77 | DSNU-S-25- -F1A- | 25 | F1A Food-Grade | 8148789 | |
| 78 | DSNU-S-25- – | 25 | 8112006 | ||
| 79 | DSNU-S-25-10-P-A-MX | 25 | 10 | Elastic | 5228227 |
| 80 | DSNU-S-25-15-P-A-MX | 25 | 15 | Elastic | 5228228 |
| 81 | DSNU-S-25-20-P-A-MX | 25 | 20 | Elastic | 5228229 |
| 82 | DSNU-S-25-25-P-A-MX | 25 | 25 | Elastic | 5228230 |
| 83 | DSNU-S-25-25-PPS-A-MX | 25 | 25 | Self-Adj. Pneumatic | 5228452 |
| 84 | DSNU-S-25-30-P-A-MX | 25 | 30 | Elastic | 5228231 |
| 85 | DSNU-S-25-30-PPS-A-MX | 25 | 30 | Self-Adj. Pneumatic | 5228453 |
| 86 | DSNU-S-25-40-P-A-MX | 25 | 40 | Elastic | 5228232 |
| 87 | DSNU-S-25-40-PPS-A-MX | 25 | 40 | Self-Adj. Pneumatic | 5228454 |
| 88 | DSNU-S-25-50-P-A-MX | 25 | 50 | Elastic | 5228233 |
| 89 | DSNU-S-25-50-PPS-A-MX | 25 | 50 | Self-Adj. Pneumatic | 5228455 |
| 90 | DSNU-S-25-60-P-A-MX | 25 | 60 | Elastic | 5228234 |
| 91 | DSNU-S-25-60-PPS-A-MX | 25 | 60 | Self-Adj. Pneumatic | 5228456 |
| 92 | DSNU-S-25-80-P-A-MX | 25 | 80 | Elastic | 5228235 |
| 93 | DSNU-S-25-80-PPS-A-MX | 25 | 80 | Self-Adj. Pneumatic | 5228457 |
| 94 | DSNU-S-25-100-P-A-MX | 25 | 100 | Elastic | 5228236 |
| 95 | DSNU-S-25-100-PPS-A-MX | 25 | 100 | Self-Adj. Pneumatic | 5228458 |
| 96 | DSNU-S-25-125-P-A-MX | 25 | 125 | Elastic | 5228237 |
| 97 | DSNU-S-25-125-PPS-A-MX | 25 | 125 | Self-Adj. Pneumatic | 5228459 |
| 98 | DSNU-S-25-150-P-A-MX | 25 | 150 | Elastic | 5228238 |
| 99 | DSNU-S-25-150-PPS-A-MX | 25 | 150 | Self-Adj. Pneumatic | 5228460 |
| 100 | DSNU-S-25-200-P-A-MX | 25 | 200 | Elastic | 5228239 |
| 101 | DSNU-S-25-200-PPS-A-MX | 25 | 200 | Self-Adj. Pneumatic | 5228461 |
Applications
- Tight-Space Automation: Ultra-compact design for confined assembly stations
- Lithium-Ion Battery Manufacturing: Recommended variants specifically for battery production systems
- Electronics Manufacturing: Lightweight design ideal for precision electronic assembly
- Robotic End-Effectors: Low weight suited for moving robotic arm end applications
- Food and Packaging: F1A food-grade variants for food processing environments
Related FESTO Cylinder Series
| Series | Description |
|---|---|
| DSNU-S | ISO 6432 Round Cylinder, Double-Acting, Short/Corrosion-Resistant (this series) |
| DSNU | ISO 6432 Round Cylinder, Double-Acting, Standard |
| CRDSNU | Round Cylinder, All-Round Corrosion-Resistant, Optional Dry-Running Seal |
| CRHD | Round Cylinder, High Corrosion Resistance for Harsh Environments |
| ESNU | ISO 6432 Round Cylinder, Single-Acting |
FAQ
Q: What is the main difference between DSNU-S and DSNU?
The DSNU-S is a shorter, thinner derivative of the DSNU. It is up to 35 mm shorter and 40% narrower, with lower weight. DSNU-S bore range is 8-25 mm with strokes 1-200 mm, while the standard DSNU covers 8-63 mm bore with strokes 1-500 mm.
Q: What is the difference between MQ and MX variants?
MQ and MX denote different connection/interface variants. MQ type is used for smaller bore sizes (8-16 mm), while MX type is used for larger bore sizes (20-25 mm). Refer to the official Festo catalog for specific interface dimensions.
Q: Is DSNU-S suitable for battery manufacturing?
Yes. Festo specifically recommends multiple DSNU-S variants for lithium-ion battery production systems, meeting the strict requirements for cleanliness, corrosion resistance, and compact spaces in this industry.
Download DSNU-S Series Product Catalogue (PDF)
FESTO DSNU-S round cylinders and accessories in stock, available for bulk orders. Contact us for a quotation, selection assistance, or technical consultation.