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Festo
170939
Guided drive DFM-40-25-P-A-KF
The Festo 170939 is a double-acting industrial drive unit featuring a 40 mm piston diameter, a 25 mm stroke, and a yoke drive operating mode with a 50 mm distance of the centre of gravity of the payload to the yoke plate. Equipped with a recirculating ball bearing guide, elastic cushioning rings at both ends, and position sensing via proximity switch, this guide structural design operates at pressures from 0.15 MPa to 1 MPa (1.5 bar to 10 bar) and supports a maximum speed of 0.8 m/s with a maximum force Fy of 1130 N. It accommodates compressed air operating medium according to ISO 8573-1:2010 [7:4:4] with possible oil lubrication, features an ambient temperature range of -5 °C to 60 °C, and meets ISO 14644-1 Class 6 cleanroom suitability. Submit the exact part number, quantity, and application requirements for 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
- 170939
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 170939.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Distance of centre of gravity of payload to yoke plate xs
- 50 mm
- Stroke
- 25 mm
- Piston diameter
- 40 mm
- Drive unit operating mode
- Yoke
- Cushioning
- Elastic cushioning rings/pads at both ends
- Mounting position
- Any
- Guide
- Recirculating ball bearing
- Structural design
- Guide
- Position sensing
- Via proximity switch
- Operating pressure
- 0.15 MPa...1 MPa | 1.5 bar...10 bar
- Max. speed
- 0.8 m/s
- Mode of operation
- Double-acting
- 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)
- 0 - No corrosion stress
- LABS (PWIS) conformity
- VDMA24364-B1/B2-L
- Cleanroom suitability, measured according to ISO 14644-14
- Class 6 according to ISO 14644-1
- Ambient temperature
- -5 °C...60 °C
- Impact energy in the end positions
- 0.7 Nm
- Max. force Fy
- 1130 N
- Max. force Fy static
- 1260 N
- Max. force Fz
- 1130 N
- Max. force Fz static
- 1260 N
- Max. torque Mx
- 49.74 Nm
- Max. static moment Mx
- 55.44 Nm
- Max. torque My
- 18.66 Nm
- Max. static moment My
- 20.79 Nm
- Max. torque Mz
- 18.66 Nm
- Max. static moment Mz
- 20.79 Nm
- Max. permissible torque load Mx as a function of the stroke
- 10.25 Nm
- Max. payload as a function of the stroke at dened distance xs
- 149 N
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 170939. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.