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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.
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Festo
4840819
Compact cylinder DPDM-Q-20-40-PA
The Festo 4840819 is a double-acting industrial component featuring a 20 mm piston diameter and a 40 mm stroke, constructed with a piston, piston rod, and profile barrel. This variant includes an integrated guide rod with a yoke for torsion protection, elastic cushioning rings at both ends, and position sensing via proximity switch for any mounting position. It operates within a pressure range of 0.1 MPa to 0.8 MPa using compressed air conforming to ISO 8573-1:2010 [7:4:4], delivering a theoretical advancing force of 188 N and a retracting force of 158 N at 6 bar. Submit the exact part number, quantity, and application requirements to request a quote.
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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
- 4840819
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 4840819.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Stroke
- 40 mm
- Piston diameter
- 20 mm
- Cushioning
- Elastic cushioning rings/pads at both ends
- Mounting position
- Any
- Mode of operation
- Double-acting
- Structural design
- Piston | Piston rod | Prole barrel
- Position sensing
- Via proximity switch
- Variants
- Piston rod at one end
- Protection against torsion/guide
- Guide rod with yoke
- Operating pressure
- 0.1 MPa...0.8 MPa | 1 bar...8 bar
- Operating medium
- Compressed air as per ISO 8573-1:2010 [7:4:4]
- Information on operating and pilot media
- Operation with oil lubrication possible (required for further use)
- Corrosion resistance class (CRC)
- 2 - Moderate corrosion stress
- LABS (PWIS) conformity
- VDMA24364-B2-L
- Cleanroom suitability, measured according to ISO 14644-14
- Class 6 according to ISO 14644-1
- Ambient temperature
- -10 °C...80 °C
- Theoretical force at 6 bar
- 188 N
- Theoretical force at 6 bar, retracting
- 158 N
- Theoretical force at 6 bar, advancing
- 188 N
- Moving mass at 0 mm stroke
- 46 g
- Additional moving mass per 10 mm stroke
- 4.6 g
- Basic weight with 0 mm stroke
- 140 g
- Additional weight per 10 mm stroke
- 22.5 g
- Type of mounting
- Alternatively: | With through-hole | With internal thread
- Pneumatic connection
- M5
- Note on materials
- RoHS compliant
- Cover material
- Wrought aluminum alloy
- Seals material
- TPE-U(PU)
Engineering context
Identification and RFQ Guidance
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 4840819. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.