Festo EB-250-85 G1/4 Gas Hole Air Spring 1B6910 Convoluted Pneumatic Air Actuator
Product Description
Air bellows are the ideal choice for applications requiring short stroke, high thrust single acting actuators. Manufactured from fabric reinforced synthetic rubber in one, two or three convolutions according to stroke and model. They incorporate no reciprocating metal parts and so provide virtually frictionless thrust compared with conventional pneumatic cylinders.
OEM Original Manufacturer
| Festo | EB-250-85, EB25085, EB 250 85 |
| Norgren | PM/31091(8 1/4x1), PM31091(8 1/4x1), PM 31091(8 1/4x1) |
| Contitech | FS 200-10, FS 20010, FS 200 10 |
| Firestone | W01-M58-6374, W01M586374, W01 M58 6374 |
| Phoenix | SP 1B 12, SP 1B12, SP1B12 |
| Dunlop(FR) | 9''1/4x1 S09101, 9'1/4x1 S09101, 9 1/4x1 S09101 |
| Bosch | 822419004 |
Product Specifications and Technical Parameters
Top Cover Plate Diameter: 160 mm
Screw Center Distance of Top Cover Plate: 89 mm
Bottom Cover Plate Diameter: 160 mm
Screw Center Distance of Bottom Cover Plate: 89 mm
Top Cover Plate Screw(Nut) Tooth: 2×M10×1.5
Bottom Cover Plate Screw(Nut) Tooth: 2×M10×1.5
- Gas Hole/Air Inlet/Air Fitting
Air Hole: G1/4
Natural Bellow Max. Diameter: 220 mm
Static Height: 110 mm
Vibration isolation - dynamic characteristics values
| Pressure P [bar] | 3 | 4 | 5 | 6 | 7 | 8 | Vol. V[l] |
| Force (Load) [kN] | 5.5 | 7.5 | 9.6 | 11.9 | 14.0 | 15.7 | 2.7 |
| Spring Rate [N/cm] | 1500 | 2050 | 2600 | 3150 | 3700 | 4250 |
| Natural Frequency [Hz] | 2.6 | 2.6 | 2.6 | 2.6 | 2.6 | 2.6 |
Pneumatic application - static characteristic values
| Pressure p | [bar] | 3 | 4 | 5 | 6 | 7 | 8 | Vol.[l] |
| Height H [mm] | 120 | 4.5 | 6.2 | 8.2 | 10.4 | 12.1 | 13.8 | 2.8 |
| 110 | 5.5 | 7.5 | 9.6 | 11.9 | 14.0 | 15.7 | 2.7 |
| 100 | 6.3 | 8.6 | 11.0 | 13.4 | 15.5 | 17.5 | 2.3 |
| 90 | 7.0 | 9.4 | 12.1 | 14.6 | 17.0 | 19.2 | 2.2 |
| 80 | 7.6 | 10.2 | 13.0 | 15.7 | 18.2 | 20.6 | 1.8 |
| 70 | 8.1 | 10.9 | 13.6 | 16.5 | 19.3 | 21.9 | 1.6 |
| 60 | 8.5 | 11.3 | 14.2 | 17.1 | 20.1 | 23.0 | 1.3 |
Precautions for Installing Air Springs
- Air springs must not be pressurised unless they are restricted by an outside frame or by a suitable load.
- Strokes must be limited by the direct use of bump stops or external stops. When stacking air suspensions, special cares must be taken to ensure the air springs are guided and fixed.
- An Air bag is a single acting air actuator and must not be used below atmospheric pressure.
- Please check the overpressure in case of quick compression.
1B6910 Real Pictures
Factory Workshop
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Festo EB-250-85 G1/4 Gas Hole Air Spring 1B6910 Convoluted Pneumatic Air Actuator Images
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