M12–M25 Double-Rod Fixed Hydraulic Shock Absorbers
| Item | FW M12–M25 Series |
|---|---|
| Product type | Double-rod fixed hydraulic shock absorber |
| Series models | FW-1212L-C FW-1616M-S／C／R FW-2025M-S／C／R FW-2530M-S／C／R |
| Model characteristics | Double-rod type, multiple-orifice type, fixed type, low-speed and medium-speed models |
| Thread size | M12×1.0, M16×1.5, M20×1.5, M25×1.5 |
| Stroke | 12 mm, 16 mm, 25 mm, 30 mm |
| Max. absorption energy | 62.7 J |
| Max. absorption energy per minute | 490 J/min |
| Impact speed range | FW-1212L-C: 0.3～1 m/s FW-1616M／FW-2025M／FW-2530M: 0.3～2 m/s |
| Max. equivalent mass | 140 kg |
| Max. cycle rate | 60 cycles/min |
| Operating temperature range | -5 ~ 70 ℃ |
| Max. drag | 6,370 N |
| Piston rod return force | Depending on model, up to 29.4 N or lower |
| Orifice type | Multiple-orifice type |
| Damping type | Fixed |
| End types | FW-1212L: -C: with cap FW-1616M / FW-2025M / FW-2530M: -S: capless, -C: with cap, -R: with urethane cap |
| Product mass | FW-1212L-C: 64 g FW-1616M: 130–142 g FW-2025M: 234–271 g FW-2530M: 460–527 g for S / C types |
| Allowable eccentric angle | Within ±2.5° |
Specification notes
Q1: What is the FUJI LATEX FW M12–M25 Series?
A: The FW M12–M25 Series consists of double-rod fixed hydraulic shock absorbers that can receive impact from either direction.
Q2: What models are included in the FW Series?
A: The series includes FW-1212L-C, FW-1616M, FW-2025M, and FW-2530M, covering M12×1.0 to M25×1.5 thread sizes.
Q3: Is the FW Series fixed or adjustable?
A: The FW Series is a fixed-type shock absorber and does not require damping adjustment.
Q4: Can the FW Series absorb impact from both directions at the same time?
A: No. It can receive impact from either direction, but simultaneous impact from both sides is not permitted.
Q5: What type of orifice structure does the FW Series use?
A: The FW Series uses a multiple-orifice structure designed to provide smooth hydraulic impact absorption.
Q6: What is the maximum absorption energy of the FW Series?
A: Maximum absorption energy reaches 62.7 J with FW-2530M. FW-1212L-C, FW-1616M, and FW-2025M provide 4.9, 13.7, and 39.2 J respectively.
Q7: What impact speed ranges are available?
A: FW-1212L-C is rated for 0.3–1 m/s, while FW-1616M, FW-2025M, and FW-2530M are rated for 0.3–2 m/s.
Q8: What applications are suitable for the FW Series?
A: The double-rod design is suitable for reciprocating mechanisms and installations where impact may come from either direction, especially when mounting space is limited.
Q9: What should be checked when installing an FW shock absorber?
A: Ensure sufficient mounting strength and an external stopper, keep eccentric loading within ±2.5°, and prevent simultaneous impact from both directions.
Q10: How do I select the correct FW model?
A: Check moving mass, impact speed, absorption energy, required stroke, thread size, and cycle rate, then select the appropriate low- or medium-speed model, or contact GATO Corporation for selection support.