The Festo DSNU-S-8-15-P-A-MQ is a compact double-acting round cylinder from the DSNU-S series, featuring an 8mm piston bore and 15mm stroke. Built with a high-alloy stainless steel piston rod and cylinder barrel, this cylinder is engineered for cleanroom-grade and corrosion-sensitive environments — rated to ISO 14644-1 Class 5 and CRC 2. It is suitable for precision automation tasks in food and packaging lines, pharmaceutical equipment, and other industries where hygiene and compact installation space are critical. Festo Part Number: 5205898. Available with Murali Pneumatics, your authorized Festo dealer in Coimbatore.
Note: This cylinder is supplied as a base unit. Proximity switch sensors, mounting accessories, push-in fittings, and flow control valves must be ordered separately.
Festo DSNU-S-8-15-P-A-MQ – Compact Stainless Round Cylinder for Cleanroom and Hygienic Applications
The Festo DSNU-S-8-15-P-A-MQ belongs to the DSNU-S series — Festo's stainless steel variant of the proven ISO 6432 round cylinder family. With an 8mm bore, 15mm stroke, and fully double-acting operation, this cylinder is designed for installations where standard aluminium-bodied cylinders are unsuitable due to hygiene requirements, washdown exposure, or moderate corrosion environments. The stainless steel barrel and piston rod, combined with cleanroom Class 5 suitability (ISO 14644-1), make it a natural choice for packaging, pharmaceutical, and food processing automation in Coimbatore and across South India.
Key Features
High-alloy stainless steel cylinder barrel and piston rod — resists washdown, cleaning agents, and moderate corrosion, qualifying for CRC 2 environments where standard aluminium cylinders would corrode prematurely.
Cleanroom Class 5 rated (ISO 14644-1) — independently measured per ISO 14644-14, making this cylinder suitable for pharmaceutical manufacturing, medical device assembly, and sensitive electronics production.
LABS (PWIS) conformity to VDMA 24364-B2-L — certified free from paint-wetting impairment substances, essential for automotive painting lines and lacquering applications where contamination causes surface defects.
Double-acting operation with elastic cushioning at both ends — smooth deceleration in both advance and return strokes, reducing mechanical shock even in high-cycle applications without the need for external shock absorbers at this bore size.
M5 pneumatic connection — compact thread size suited to miniature push-in fittings and small-bore tubing, ideal for space-constrained machine assemblies.
Proximity switch compatible via standard T-slot groove — supports easy position detection without additional brackets; compatible with Festo SME and SMT series sensors.
Operating pressure range 1.5–10 bar (0.15–1 MPa) — wide pressure window gives flexibility across low-pressure pilot circuits and standard factory air lines.
TPE-U (polyurethane) seals — excellent abrasion resistance and long service life under dry-running or infrequently lubricated conditions; lubricated operation is also supported (once lubricated, lubrication must be maintained).
Any mounting position accepted — no orientation restrictions simplify machine design and allow last-minute axis reorientation without engineering rework.
Anodised wrought aluminium alloy cover — lightweight end caps with durable anodised surface complement the stainless barrel, balancing weight and corrosion protection.
Technical Specifications
Parameter
Value
Festo Part Number
5205898
Model Number
DSNU-S-8-15-P-A-MQ
Cylinder Type
Round cylinder (ISO 6432), double-acting
Piston Diameter (Bore)
8 mm
Stroke
15 mm
Piston Rod Thread
M4
Pneumatic Connection
M5
Mode of Operation
Double-acting
Operating Pressure
1.5 bar … 10 bar (0.15 MPa … 1 MPa)
Theoretical Force at 6 bar – Advance Stroke
30.2 N
Theoretical Force at 6 bar – Return Stroke
22.6 N
Cushioning
Elastic cushioning rings/plates at both ends
Impact Energy at End Positions
0.03 J
Moving Mass (0 mm stroke)
6.3 g
Additional Moving Mass per 10 mm Stroke
1 g
Basic Weight (0 mm stroke)
20 g
Additional Weight per 10 mm Stroke
2.4 g
Mounting Position
Any
Type of Mounting
With accessories
Position Detection
Via proximity switch
Operating Medium
Compressed air to ISO 8573-1:2010 [7:4:4]
Lubricated Operation
Possible (once lubricated, must be maintained)
Ambient Temperature
-20 °C … 80 °C
Cylinder Barrel Material
High-alloy stainless steel
Piston Rod Material
High-alloy stainless steel
Cover Material
Anodised wrought aluminium alloy
Seal Material
TPE-U (polyurethane)
Cleanroom Suitability
Class 5 per ISO 14644-1 (measured per ISO 14644-14)
Corrosion Resistance Class (CRC)
2 – Moderate corrosion stress
LABS (PWIS) Conformity
VDMA 24364-B2-L
RoHS Compliance
Yes – RoHS compliant
Conforms to Standard
ISO 6432 (round cylinder series)
Common Applications
Food and beverage packaging lines — washdown-resistant construction handles regular cleaning cycles on filling, sealing, and labelling machines in Coimbatore food processing plants.
Pharmaceutical tablet press and blister pack automation — cleanroom Class 5 suitability and LABS conformity meet the contamination control requirements of LifeTech and pharma OEMs.
Miniature pick-and-place mechanisms — compact 8mm bore and 15mm stroke fit into tight robotic end-effector assemblies and multi-station transfer systems.
Printed circuit board handling and electronics assembly — low moving mass and elastic cushioning protect delicate components from impact shock during placement or clamping operations.
Textile machine auxiliary actuators — yarn tensioning, thread guide positioning, and bobbin clamp actuation in spinning and weaving equipment common across Coimbatore's textile industry.
Automotive painting and lacquering lines — LABS/PWIS conformity ensures zero risk of surface contamination from the cylinder in paint booths and coating environments.
Why Buy from Murali Pneumatics?
Authorized Festo Channel Partner since 1991 — over three decades of dedicated Festo expertise serving plant engineers and machine builders across Tamil Nadu and South India.
100% genuine Festo products with full manufacturer warranty — every unit supplied is sourced directly through Festo's authorized distribution network; no grey-market stock.
Ready stock of popular DSNU-S variants at our Coimbatore store — common bore and stroke combinations are available off-the-shelf, reducing your machine downtime.
Expert technical support from people who know Festo inside out — call or WhatsApp +91 98422 47546 for help with selection, sensor compatibility, mounting hardware, or bulk requirements.
Compatible Accessories
Proximity switch sensors — Festo SME-8 or SMT-8 series reed/electronic switches for position detection via the T-slot groove on the cylinder barrel.
Mounting brackets and clevis — Festo LBN, FNC, and SG series mounting accessories for foot, flange, pivot, or swivel trunnion installation.
M5 push-in fittings — Festo QS-M5-4 or NPQM-M5 fittings for 4mm OD tubing, providing tool-free pneumatic connection.
M5 flow control fittings — Festo GRLA-M5 or VFOE series meter-out flow controls to regulate piston speed and prevent uncontrolled extension/retraction.
4mm OD polyurethane or nylon tubing — compatible with M5 push-in fittings; polyurethane recommended for flexible routing in moving machine parts.
M5 silencers — Festo U-M5 or AMSE-M5 exhaust silencers to reduce noise at exhaust ports where no manifold is used.
All accessories available from stock. Ask us to bundle your complete assembly.
