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Round cylinders DSNU/ESNU Reacts quickly thanks to minimal break-away force Meets the highest requirements for running characteristics, service life and load carrying ability Extensive range of accessories2015/03 – Subject to change è Internet: www.festo.com/catalog/... 1 Round cylinders DSNU/ESNUKey featuresAt a glance Round cylinders with piston The cap is roller burnished onto the Three cushioning variants available diameter from 32 to 63 mm barrel – P cushioning The series is not repairable Good running performance and – PPV cushioning Piston rod and cylinder barrel made long service life thanks to smooth, – PPS cushioning of stainless steel hard inner surface of cylinder barrelWide choice of variantsDSNU-… DSNU/ESNU-…MA DSNU-…MQ DSNU-…MH Cylinder barrel made from stainless Bearing cap with flange thread Bearing cap with flange thread Direct mounting on the bearing cap steel Short end cap with axial air Short end cap with lateral air Short end cap with lateral air Bearing and end caps made from connection connection connection wrought aluminium alloy DSNU-…KP With clamping unitCushioning types P cushioning PPS cushioning PPV cushioningMode of operation The drive is equipped with polymer The drive is equipped with self- The drive is equipped with adjust flexible end position cushioning adjusting end position cushioning able end position cushioningApplication Small loads Small to medium loads Medium to high loads Low speeds Low to medium speeds High speeds Low impact energies Medium impact energies High impact energiesAdvantages No adjustment required No adjustment required Very powerful Time-saving Time-saving Powerful2 è Internet: www.festo.com/catalog/... Subject to change – 2015/03 Round cylinders DSNU/ESNUKey featuresAdditional variantsSymbol Key features Description S2 Through piston rod For working at both ends with the same force in the forward and return stroke, for attaching external stops S6 Heat-resistant seals Temperature resistance up to max. 120 °C S10 Constant motion (slow speed) at low piston Suitable for slow stroke movements at a constant, stick-slip-free speed over speeds the full stroke of the cylinder
Seal contains silicone grease (not free of paint-wetting impairment substances) S11 Low friction Special seals considerably reduce friction. This means a considerably lower response pressure
Seal contains silicone grease (not free of paint-wetting impairment substances) K2 Extended male piston rod thread – K3 Female piston rod thread – K5 Special piston rod thread Metric standard thread to ISO K6 Shortened male piston rod thread – K8 Extended piston rod – R3 High corrosion protection All external cylinder surfaces comply with corrosion resistance class 3 to Festo standard 940 070. The piston rod is made from corrosion and acid-resistant steelLonger service life thanks to the bellows kit DADB The bellows kit is a leak-free system. The kit protects the piston rod, seal 1 To prevent unwanted media being and bearings from a wide range of drawn in, the supply and exhaust air media, for example: must be ducted via a pressure dust, compensation hole in the connection chips, part 1. oil, grease, fuel
2015/03 – Subject to change è Internet: www.festo.com/catalog/... 3 Round cylinders DSNUProduct range overview Function Version Piston j Stroke Variable Piston rod stroke1) Through Extended Male thread Female Extended Shortened Special thread thread [mm] [mm] [mm] S2 K8 K2 K6 K5 K3 Double- Basic version with position sensing acting DSNU 32, 40, 50, 25, 40, 50, 1 … 500 63 80, 100, 125, 160, n n n n n n 200, 250, 320 DSNU – Standard cylinder with piston 8 … 25 Protected against rotation DSNU-Q 32 5 … 300 – 40, 50 5 … 400 – n n n n n n 63 5 … 500 – DSNU-Q – Standard cylinder with piston 8 … 25 Lateral air connection DSNU-MQ 32, 40, 50, 1 … 500 63 – – n n n n n DSNU-MQ – Standard cylinder with piston 8 … 25 Axial air connection DSNU-MA 32, 40, 50, 1 … 500 63 – – n n n n n DSNU-MA – Standard cylinder with piston 8 … 25 Direct mounting DSNU-MH 32, 40, 50, 1 … 500 63 – – n n n n n DSNU-MH – Standard cylinder with piston 8 … 251) Cylinders with position sensing require a minimum stroke of 10 mm to ensure reliable sensing4 è Internet: www.festo.com/catalog/... Subject to change – 2015/03 Round cylinders DSNUProduct range overviewVersion Cushioning Position Clamping Heat- Slow speed Low friction Corrosion Wiper seal è Page/ sensing unit resistant (constant protection Internet Fixed Adjustable Self- seal motion) adjusting P PPV PPS A KP S6 S10 S11 R3 R8Basic version with position sensingDSNU 11 n n n n n n n n n nDSNU – Standard cylinder with piston 8 … 25 dsnuProtected against rotationDSNU-Q 20 n n – n n n n n n –DSNU-Q – Standard cylinder with piston 8 … 25 dsnuLateral air connectionDSNU-MQ 11 n n n n n n – – n nDSNU-MQ – Standard cylinder with piston 8 … 25 dsnuAxial air connectionDSNU-MA 11 n – – n n n – – n –DSNU-MA – Standard cylinder with piston 8 … 25 dsnuDirect mountingDSNU-MH 11 n n – n – n – – n –DSNU-MH – Standard cylinder with piston 8 … 25 dsnu2015/03 – Subject to change è Internet: www.festo.com/catalog/... 5 Round cylinders ESNUProduct range overview Function Version Piston j Stroke Variable stroke1) Fixed Position sensing cushioning [mm] [mm] [mm] P A Single- Basic version with position sensing acting ESNU 32, 40, 50, 63 10, 25, 50 1 … 50 n n ESNU – Standard cylinder with piston 8 … 25 Axial air connection ESNU-MA 32, 40, 50, 63 – 1 … 50 n n ESNU-MA – Standard cylinder with piston 8 … 251) Cylinders with position sensing require a minimum stroke of 10 mm to ensure reliable sensing6 è Internet: www.festo.com/catalog/... Subject to change – 2015/03 Round cylinders ESNUProduct range overviewVersion Piston rod è Page/Internet Extended Male thread Female thread Extended Shortened Special thread K8 K2 K6 K5 K3Basic version with position sensingESNU 32 n n n n nESNU – Standard cylinder with piston 8 … 25 esnuAxial air connectionESNU-MA 32 n n n n nESNU-MA – Standard cylinder with piston 8 … 25 esnu2015/03 – Subject to change è Internet: www.festo.com/catalog/... 7 Round cylinders DSNU/ESNUPeripherals overview 8 5 aJ 6 bJ 9 7 aB aA aD 1 aC aF 1aG aE 2 aH 3 5 aI 4 6 7VariantsDSNU-MQ DSNU-MA DSNU-MHDSNU-Q DSNU-KPMounting optionsMounting front and rear Mounting via hex nut Swivel mountingFoot mounting (for short strokes) Foot mounting Flange mounting Swivel mounting8 è Internet: www.festo.com/catalog/... Subject to change – 2015/03 Round cylinders DSNU/ESNUPeripherals overviewMounting attachments and accessories DSNU/ESNU DSNU/ESNU DSNU DSNU-Q è Page/Internet MA MQ MH KP1 Rod eye 41 n n n n n n SGS/CRSGS2 Coupling piece 41 n n n n n n KSG/KSZ3 Rod clevis 41 n n n n n n SG/CRSG4 Self-aligning rod coupler 41 n n n n n n FK/CRFK5 Foot mounting 38 n n n – n n HBN/CRH Flange mounting 38 n n n – n n FBN/CRFV6 Swivel mounting1) 39 n n n – n n WBN7 Swivel mounting1) 39 n n n – n n SBN8 Clevis foot 40 n – – – n n LBN/CRLBN9 One-way flow control valve 41 n n n n n n GRLA/GRLZ/CRGRLAaJ Push-in fitting quick star n n n n n n QSaA Mounting kit 47 n n n n n n CRSMBRaB Proximity sensor 47 n n n n n n SMEO/SMTO/CRSMEO-4aC Mounting kit 48 n n n n n n SMBR-8aD Proximity sensor 48 n n n n n n SME/SMT-8aE Mounting kit 49 n n n n n n SMBR-10aF Proximity sensor 49 n n n n n n SME/SMT-10aG Right-angle clevis foot 40 n n n n n n LQGaH Rod clevis 41 n n n n n n SGAaI Clevis foot 40 n n n n n n LBGbJ Bellows kit2) 40 n n n – – – DADB-H- Note1) Cannot be used on the bearing 2) The bellows kit protects the It can only be used in combina cap in combination with bellows cylinder (piston rod, seal and tion with an extended piston rod kit DADB. bearings) against a wide range (K8)
of media and thus prevents premature wear
2015/03 – Subject to change è Internet: www.festo.com/catalog/... 9 Round cylinders DSNU/ESNUType codesu DSNU — 32 — 80 — PPV — A — MQ Type Double-acting DSNU Round cylinder Single-acting ESNU Round cylinder Piston j [mm] Stroke [mm] Cushioning P Flexible cushioning rings/pads at both ends PPV Pneumatic cushioning, adjustable at both ends PPS Pneumatic cushioning, self-adjusting at both ends Position sensing A Via proximity sensor Variant MQ Lateral air connection MA Axial air connection MH With mounting flange on bearing cap Modular product system Individually configurable DSNU è 28 ESNU è 36 Square piston rod (protection against rotation) Through piston rod (piston rod type) Extended male piston rod thread Male piston rod thread, shortened at one end Female piston rod thread (female thread) Special piston rod thread (special thread) Piston rod extended at front Clamping unit on the piston rod Heat-resistant seals for temperatures up to 120 °C (temperature resistance) Slow speed (constant motion at low piston rod speeds) Low friction ATEX certification II 2GD All external cylinder surfaces conform to corrosion resistance class CRC 3 (corrosion protection) Dust protection (wiper seal)10 è Internet: www.festo.com/catalog/... Subject to change – 2015/03 Round cylinders DSNUTechnical dataFunction Variants è 18-N- Diameter Basic version Lateral air connection MQ 32 … 63 mm-T- Stroke length 1 … 500 mm Axial air connection MA Direct mounting MHGeneral technical dataPiston 32 40 50 63Pneumatic connection Gx G¼ G¼ GyPiston rod thread M10x1.25 M12x1.25 M16x1.5 M16x1.5Constructional design Piston Piston rod Cylinder barrelCushioning P Flexible cushioning rings/pads at both ends PPV Adjustable cushioning at both ends PPS Self-adjusting cushioning at both endsCushioning length PPV [mm] 14 18 20 21 PPS [mm] 14 18 20 21Position sensing Via proximity sensorType of mounting Direct mounting (MH variant only) Via accessoriesMounting position AnyOperating conditionsPiston 32 40 50 63Operating medium Compressed air in accordance with ISO 85731:2010 [7:4:4]Note on operating/pilot medium Operation with lubricated medium possible (in which case lubricated operation will always be required)Operating pressure [bar] Basic 1 … 10 version S10 0.5 … 10 0.4 … 10 S11 0.2 … 10 – 0.2 … 102015/03 – Subject to change è Internet: www.festo.com/catalog/... 11 Round cylinders DSNUTechnical data Ambient conditions Round cylinder Basic version S6 S10 S11 R3 Ambient temperature1) [°C] –20 … +80 0 … +120 +5 … +80 –20 … +80 Corrosion resistance class CRC2) 2 2 2 2 31) Note operating range of proximity sensors
2) Corrosion resistance class CRC 2 to Festo standard FN 940070 Moderate corrosion stress. Indoor applications in which condensation may occur. External visible parts with primarily decorative requirements for the surface and which are in direct contact with the ambient atmo sphere typical for industrial applications
Corrosion resistance class CRC 3 to Festo standard FN 940070 High corrosion stress. Outdoor exposure under moderate corrosive conditions. External visible parts with primarily functional requirements for the surface and which are in direct contact with a normal industrial environment
ATEX1) ATEX category for gas II 2G Explosion ignition protection type for c T4 gas ATEX category for dust II 2D Explosion ignition protection type for c 120°C dust Explosion-proof temperature –20°C <= Ta <= +60°C rating CE marking To EU Explosion Protection Directive (ATEX) (see declaration of conformity)1) Make sure that the accessories are suited for ATEX application
Speed [mm/s] Piston 32 40 50 63 Speed with stick-slip-free S10 8 … 100 5 … 100 operation, horizontal, without load, at 6 bar Minimum speed, advancing S11 11) Minimum speed, retracting S11 11)1) Measurements of less than 1 mm/s were not conducted
Force [N] and impact energy [J] Piston 32 40 50 63 Theoretical force at 6 bar, advancing 483 753 1178 1870 Theoretical force at 6 bar, retracting 415 633 990 1682 Impact energy at the end positions for P 0.40 0.70 1 1.3 cushioning1)1) The values are reduced by approx. 50% at an ambient temperature of 80 °C
12 è Internet: www.festo.com/catalog/... Subject to change – 2015/03
2015/03 – Subject to change Internet: www.festo.com/catalog/ 5 Round cylinders DSNU Product range overview Version Cushioning Position sensing Clamping unit Heat
The round cylinder DSNU is always a solid choice when it comes to performance and compact dimensions. Its universal variants make it ideal in applications where low friction, chemical resistance or corrosion resistance are required. Look for the blue star, in stock and ready for delivery today!
Festo is an independent and privately owned company since 1925 specializing in factory automation and process control solutions. For over 80 years, companies have turned to Festo for intelligent automation solutions that help maximize productivity and ultimately help them compete in the global market.
With over 250 branch offices in 176 different countries, they are sure to have what you need, where you need it. Whether you're building new robotics system, or trying to replace an air fitting we have the expertise and service to make your Festo projects as quick, easy, and painless as possible.
Its universal variants make it ideal in applications where low friction, chemical resistance or corrosion resistance are required. Look for the blue star, in stock and ready for delivery today! Long-lasting cylinder based on ISO 6432 with self-adjusting end-position cushioning and extensive accessories.