DDLI-25 - Uncategorized Festo - Free user manual and instructions
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| Product Type | Guided Pneumatic Linear Drive |
| Piston Diameter | 25 mm |
| Stroke Length | 50 - 500 mm (depending on variant) |
| Operating Pressure | 1 - 10 bar |
| Maximum Force (at 6 bar) | ~180 N |
| Ambient Temperature Range | -20 °C to +60 °C |
| Medium | Compressed air, filtered and lubricated |
| Guide Type | Sliding bearing with linear ball bearing |
| Housing Material | Aluminum alloy |
| Weight (100 mm stroke) | ~0.8 kg |
| Mounting Positions | Horizontal, vertical, or inclined |
| Pneumatic Connection | G1/8 or G1/4 (depending on variant) |
| Cushioning | Elastic cushioning rings at both ends |
| Protection Class | IP40 |
| Maintenance | Regrease linear bearing after 5000 km travel |
| Cleaning | Wipe with damp cloth; avoid solvents |
| Safety Precautions | Do not exceed max pressure; use proper shielding |
| Spare Parts | Seals, wiper rings, bearing elements available |
| Repairability | Service kits allow easy replacement of wear parts |
Frequently Asked Questions - DDLI-25 Festo
What is the maximum stroke length for the DDLI-25?
The maximum stroke length depends on the variant, but typically ranges up to 500 mm. For longer strokes, please refer to the manufacturer specifications.
What type of lubrication is required?
Use a lithium-based grease compatible with the sealing materials. The linear bearing should be regreased after every 5000 km of travel to ensure smooth operation.
How do I adjust the end-position cushioning?
The DDLI-25 uses elastic cushioning rings; these are not adjustable. For shock absorption, external shock absorbers can be installed.
Can the DDLI-25 be used in vertical applications?
Yes, it can be mounted vertically, but ensure the load is properly guided and the piston weight is accounted for. Counterbalance may be required for larger loads.
What is the operating temperature range?
The permissible ambient temperature is -20 °C to +60 °C. For extreme temperatures, consult Festo for compatible materials.
How do I replace the seals?
Use the original Festo spare parts kit. Disassemble the cylinder carefully, replace all seals, and reassemble following the manual. Ensure clean mating surfaces.
What does the model designation DDLI-25 mean?
DDLI stands for Festo's guided pneumatic linear drive series, and 25 indicates the piston diameter in millimeters (25 mm).
Is the DDLI-25 equipped with magnetic piston?
Many variants come with an integrated magnet for position sensing. Check the specific part number for sensor compatibility.
What are the recommended maintenance intervals?
Visually inspect for leaks and wear every 100,000 cycles. Regrease the guide every 5000 km of travel or once a year, whichever comes first.
Can I use non-lubricated air?
Yes, but lubricated air extends service life. If using non-lubricated air, ensure the seals are designed for dry operation; otherwise, reduce maintenance intervals.
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USER MANUAL DDLI-25 Festo
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Product information
Brand : Festo
Model : DDLI-25
Category : Uncategorized