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Products/Festo/193991
Festo 193991 ISO cylinder DSNU-25- -
Reference imageConfirm configuration by manufacturer part number.

Festo

193991

ISO cylinder DSNU-25- -

The Festo 193991 is a double-acting industrial component featuring a 25 mm piston diameter, a stroke length ranging from 1 mm to 500 mm, and an operating pressure of 0.1 MPa to 1 MPa (1 bar to 10 bar). Conforming to ISO 6432 and CETOP RP 52 P standards, this unit incorporates a structural design of piston, piston rod, and cylinder barrel, with mounting capability in any position and position sensing via proximity switch. It includes adjustable pneumatic end-position cushioning at both ends, self-adjusting pneumatic cushioning, and elastic cushioning rings or pads at both ends, alongside CE and UKCA markings per ATEX and UK EX directives plus EPL Db (GB) and EPL Gb (GB) explosion protection certifications. Submit the exact part number, quantity, and application requirements for a formal quote.

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Why no listed price?

Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Festo references — within one business day.

Manufacturer
Festo
Part number
193991
Data verification
Manufacturer evidence reviewed

For a faster response, include quantity, condition, and delivery destination.

Exact part-number verificationTechnical properties are matched to 193991.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.

Verified configuration

Technical Specifications

Stroke
1 mm...500 mm
Piston diameter
25 mm
Cushioning
Elastic cushioning rings/pads at both ends | Self-adjusting pneumatic end-position cushioning | Pneumatic cushioning, adjustable at both ends
Mounting position
Any
Conforms to standard
CETOP RP 52 P | ISO 6432
Structural design
Piston | Piston rod | Cylinder barrel
Position sensing
Via proximity switch
Variants
Increased chemical resistance | Stroke adjustment advancing | Weld spatter protection | Extended external thread piston rod | Internal thread on piston rod | Special thread on piston rod | Piston rod with external hexagon | Additional slide, standard, on left | Low friction for balancer applications | Bearing cover without mounting thread | Swiveling rod eye mounting on the end cap | Module for reaching a specic end position in case of a pressure failure | Transverse load increased | Reinforced piston rod | Uniform, slow movement | Low friction | Through, hollow piston rod | Additional PTFE piston guide
Protection against torsion/guide
Square piston rod
Operating pressure
0.1 MPa...1 MPa | 1 bar...10 bar
Mode of operation
Double-acting
CE marking (see declaration of conformity)
as per EU explosion protection directive (ATEX)
UKCA marking (see declaration of conformity)
acc. to UK EX instructions
Explosion protection certication outside the EU
EPL Db (GB) | EPL Gb (GB)

Engineering context

Identification and RFQ Guidance

Confirm the exact configuration

Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

What to include in your RFQ

Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.

Technical verification

Our sourcing response is prepared against Festo 193991. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.