Pneumatic Air Bellows by Festo EB-250-185 Double Convoluted Rubber Air Spring
| Feature | Value |
|---|---|
| Size | 250 |
| Required installation | 265 mm |
| Stroke | 185 mm |
| Max. usable height | 260 mm |
| Min. usable height | 75 mm |
| Max. angle of inclination | 25 deg |
| Max. offset | 20 mm |
| Mode of operation | single-acting |
| Operating pressure | 0 bar...8 bar |
| Working temperature | -40℃...+70℃ |
| Pneumatic connection | G3/4 |
- Festo Number: EB-250-185, EB250185, EB 250 185
- Contitech Number: FD 200-19, FD 20019, FD 200 19, 2682 045000
- Bos-ch Number: 822419043
- Norgren Number: PM/31092, PM31092, PM 31092
- Weforma Number: WBE 400-E1, WBE 400E1, WBE 400 E1
- Use as a spring element or for reducing oscillations
- Single- or double-bellows cylinder
- High forces with a short stroke
- Uniform movement: no stick-slip effect
- Use in dusty environments or in water
(1) Large Tractors and Harvesters:
Hyperbolic air springs adjust internal air pressure to accommodate varying loads, reducing vibration transmission in rugged farmland, protecting delicate components (such as the engine and transmission), and reducing driver fatigue.
Advantages: Compared to traditional steel springs, they offer over 30% improved shock absorption and can dynamically adjust vehicle height to prevent chassis contact due to load fluctuations.
(2) Seeders and Fertilizer Spreaders:
During high-speed operation, the flexible support of air springs reduces seed bounce and displacement, ensuring uniform seeding. In fertilizer spreaders, they cushion fertilizer tank sway and prevent clumping.
(1) Agricultural Product Transport Trailers:
Air pressure adjustment allows them to adapt to varying cargo weights (such as grain and fruits and vegetables), preventing damage caused by bumps during transport.
Data Support: A USDA study shows that trailers equipped with air springs can reduce the loss rate of fruit and vegetable transport by approximately 12%.
(2) Automated Warehousing Robotic Arms:
In agricultural product sorting lines, air springs are used to cushion the impact of sudden stops on robotic arms, extending equipment life.



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