Compact Actuation for Tight Spaces
The Festo ADN-20-70-I-P-A (manufacturer ID 8178862) is a double-acting pneumatic cylinder designed to meet the demands of modern automation where space is at a premium. With a 20 mm piston diameter and a 70 mm stroke, this unit delivers a theoretical force of 188 N advancing and 141 N retracting at 6 bar, making it suitable for light to medium-duty tasks such as clamping, pushing, or lifting in assembly fixtures, packaging machinery, and laboratory equipment. Its compact footprint and low moving mass of 67 g enable rapid cycling and reduced energy consumption, while the total product weight of 273 g simplifies handling during installation and maintenance.
Engineered for Reliable Operation
This cylinder is built to ISO 21287 standards, ensuring dimensional interchangeability and consistent performance across different manufacturers. The elastic cushioning rings at both ends absorb impact energy up to 0.2 J, reducing noise and mechanical stress during end-of-stroke contact. This feature is particularly valuable in high-cycle applications where cushioning extends service life and minimizes vibration transmitted to the machine frame. The piston rod, made of high-alloy steel with an internal thread (M6), provides robust connection options for custom tooling. The cylinder barrel and covers are crafted from anodized wrought aluminum alloy, offering a good balance of strength and corrosion resistance (CRC 2) for moderate industrial environments.
Flexible Integration and Sensing
Designed with versatility in mind, the ADN-20-70-I-P-A can be mounted in any orientation, and its mounting options include through-holes, internal threads, or accessories, allowing engineers to adapt it to existing structures without custom brackets. The cylinder is prepared for proximity sensor mounting, enabling reliable position feedback for automated control sequences. Pneumatic connection is via an M5 port, which is standard for this bore size, simplifying piping integration. The unit operates on compressed air per ISO 8573-1:2010 [7:4:4] and can run with or without oil lubrication, though oil lubrication is required if the system uses it for other components. This flexibility reduces maintenance complexity in mixed-fluid environments.
Material Quality and Compliance
For applications in sensitive sectors like electronics or food processing, the ADN-20-70-I-P-A offers cleanroom compatibility (Class 6 per ISO 14644-1) and conforms to VDMA24364-B1/B2-L for paint-wetting impairment substances (PWIS). All materials are RoHS-compliant, and the seals are made of TPE-U (PUR), which provides good wear resistance and compatibility with standard lubricants. The flange screws are steel, ensuring secure fastening. These attributes make the cylinder a safe choice for environments where contamination control and regulatory compliance are critical.
Selection Considerations
When specifying this cylinder, engineers should verify that the operating pressure range of 0.6 to 10 bar matches the system supply, and that the ambient temperature stays within -20°C to 80°C. The ADN series offers over 350 variants, so if this exact stroke or mounting style does not fit, alternative configurations are available. For procurement teams, the ADN-20-70-I-P-A represents a balance of performance, durability, and standardization, reducing the need for custom designs and simplifying spare parts management across multiple machines.