Adjustable Hydraulic Shock Absorbers
| Item | FA-4225／FA-4250／FA-4275 B3／SL |
|---|---|
| Product type | Large adjustable hydraulic shock absorber |
| Series models | FA-4225B3-C FA-4225SL-C FA-4250B3-C FA-4250SL-C FA-4275B3-C |
| Model characteristics | Standard-to-high-speed and low-speed high-equivalent-mass types |
| Thread size | M42×1.5 |
| Stroke range | 25～75 mm |
| Max. absorption energy | 260～780 J |
| Absorption energy per minute | 1,858～3,345 J/min |
| Impact speed range | 0.05～3 m/s |
| Max. equivalent mass | 3,400～162,700 kg |
| Max. cycle rate | 5–20 cycles/min |
| Operating temperature range | -5 ~ 70 ℃ |
| Max. drag | 31,590 N |
| Piston rod return force | 120 N or lower |
| Product mass | FA-4225: 795 g FA-4250: 1,020 g FA-4275: 1,240 g |
| End types | -C: with urethane cap |
| Allowable eccentric angle | Within ±2.5° |
Specification notes
Q1: What is the FUJI LATEX FA-4225 / FA-4250 / FA-4275 Series?
A: The series consists of large adjustable hydraulic shock absorbers for end-stop impact absorption in automation equipment, transfer systems, large slides, conveyors, and industrial machinery.
Q2: What equipment is this series suitable for?
A: It is suitable for large automation equipment, conveyors, transfer mechanisms, large slides, pneumatic cylinder drives, and industrial machinery requiring end-stop deceleration.
Q3: What is the difference between FA-4225, FA-4250, and FA-4275?
A: FA-4225 provides a 25 mm stroke and 260 J capacity, FA-4250 provides a 50 mm stroke and 520 J, and FA-4275 provides a 75 mm stroke and 780 J.
Q4: Is this series fixed or adjustable?
A: The series is adjustable. Damping can be continuously set with the adjustment knob and secured with the locking screw.
Q5: Which models are included in this series?
A: Models include FA-4225B3-C, FA-4225SL-C, FA-4250B3-C, FA-4250SL-C, and FA-4275B3-C.
Q6: What is the maximum absorption energy?
A: Maximum absorption energy ranges from 260 to 780 J, depending on the selected stroke and model.
Q7: How should B3 and SL models be selected?
A: B3 models cover impact speeds from 0.3 to 3 m/s. SL models cover 0.05 to 0.5 m/s for low-speed mechanisms with high equivalent mass.
Q8: What does the -C suffix mean?
A: The -C suffix identifies a model supplied with a urethane impact cap. The cap is a consumable part and should be replaced when worn.
Q9: What should be checked before installation?
A: Confirm mounting strength, external stopper design, impact speed, equivalent mass, cycle rate, stroke, and eccentric angle.
Q10: How do I select the correct model?
A: Confirm absorption energy, equivalent mass, impact speed, cycles per minute, required stroke, installation space, and impact angle, then contact GATO Corporation for selection support.