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FUJI SEIKI_FK-M27-M36

M27–M36 Fixed Hydraulic Shock Absorbers

  • FUJI LATEX FK M27–M36 fixed hydraulic shock absorbers cover M27–M36 threads and 25–50 mm strokes.
  • Low-, medium-, and high-speed models provide up to 400 J absorption energy and 3,400 kg equivalent mass for automation, transfer systems, and industrial machinery.
  • Brand FUJI SEIKI
Features
  • Fixed hydraulic cushioning: The FK M27–M36 Series uses fixed damping characteristics for impact absorption without requiring damping adjustment.
  • Multiple speed options: Low-, medium-, and high-speed models are available for different machine speeds and equivalent-mass conditions. 
  • M27 to M36 size range: Thread sizes include M27×1.5, M30×1.5, and M36×1.5, with 25, 35, and 50 mm stroke options.
  • High absorption capacity: Maximum absorption energy reaches 400 J, maximum absorption energy per minute reaches 2,352 J/min, and maximum equivalent mass reaches 3,400 kg. 
  • Multiple M36 configurations: FK-3625A, FK-3650A, and FK-3650 provide different stroke, energy, and end-configuration options for larger industrial machinery.
Specification
ItemFK M27–M36 Series
Product typeFixed hydraulic shock absorber
Series modelsFK-2725L, FK-2725M, FK-2725H
FK-3035L, FK-3035M, FK-3035H
FK-3625AL-C, FK-3625AM-C, FK-3625AH-C
FK-3650AL-C, FK-3650AM-C, FK-3650AH-C
FK-3650L, FK-3650M, FK-3650H
Model characteristicsFixed type, low-speed, medium-speed, high-speed, and high-capacity models
Thread sizeM27×1.5, M30×1.5, M36×1.5
Stroke25 mm, 35 mm, 50 mm
Max. absorption energy400 J
Max. absorption energy per minute2,352 J/min
Impact speed range0.3~3 m/s, depending on model
Max. equivalent mass3,400 kg
Max. cycle rate60 cycles/min
FK-3035, FK-3625A, FK-3650A, FK-3650: 30 cycles/min
Operating temperature range-5 ~ 70 ℃
Max. drag25,000 N
Piston rod return forceDepending on model, up to 68.6 N or lower
Orifice typeMultiple-orifice type
Damping typeFixed
End typesFK-2725 / FK-3035 / FK-3650: -S: capless, -C: with cap
FK-3625A / FK-3650A: -C: with cap
Allowable eccentric angleWithin ±2.5°

Specification notes

  • The FK M27–M36 Series uses fixed hydraulic damping with low-, medium-, and high-speed options. Depending on the model, impact speed extends to 3 m/s, maximum absorption energy reaches 400 J, and maximum equivalent mass reaches 3,400 kg.
  • The M36 group includes FK-3625A, FK-3650A, and FK-3650. FK-3625A has a 25 mm stroke, while FK-3650A and FK-3650 have 50 mm strokes. FK-3650A reaches 400 J, compared with 392 J for FK-3650.
  • Sufficient mounting strength, correct alignment, and an external stopper should be provided. Absorption energy, equivalent mass, impact speed, cycle rate, stroke, thread size, and end configuration should all be checked during model selection.
FAQ

Q1: What is the FUJI LATEX FK M27–M36 Series?
A: The FK M27–M36 Series consists of fixed hydraulic shock absorbers for automation, transfer systems, and industrial machinery requiring end-stop impact absorption. 


Q2: What models are included in the FK M27–M36 Series?
A: The group includes FK-2725, FK-3035, FK-3625A, FK-3650A, and FK-3650, covering M27×1.5, M30×1.5, and M36×1.5 thread sizes. 


Q3: Is the FK M27–M36 Series fixed or adjustable?
A: The models on this page are fixed hydraulic shock absorbers and do not require damping adjustment. 


Q4: What do L, M, and H mean in FK model numbers?
A: L, M, and H identify low-, medium-, and high-speed impact characteristics. Depending on the model, impact speeds extend to approximately 1, 2, and 3 m/s respectively. 


Q5: What is the maximum absorption energy of the FK M27–M36 Series?
A: Maximum absorption energy reaches 400 J with the FK-3650A Series, while the standard FK-3650 Series provides 392 J. 


Q6: What is the maximum equivalent mass?
A: Maximum equivalent mass reaches 3,400 kg with FK-3650AL-C. 


Q7: What is the difference between FK-3625A and FK-3650A?
A: Both use M36×1.5 threads. FK-3625A has a 25 mm stroke and up to 200 J absorption energy, while FK-3650A has a 50 mm stroke and 400 J capacity. 


Q8: What is the difference between FK-3650A and FK-3650?
A: Both are M36×1.5 fixed shock absorbers with 50 mm strokes. FK-3650A provides 400 J maximum absorption energy, while FK-3650 provides 392 J. 


Q9: What should be checked when installing an FK M27–M36 shock absorber?
A: Ensure sufficient mounting strength, proper alignment, and an external stopper, and confirm that absorption energy, equivalent mass, impact speed, and cycle rate remain within the applicable model specifications. 


Q10: How do I select the correct FK M27–M36 model?
A: Check moving mass, impact speed, driving force, required stroke, absorption energy, cycle rate, thread size, and end configuration, or contact GATO Corporation for model selection support.

File Downloads
File Name
File Type
Download
M27–M36 Fixed Hydraulic Shock Absorbers FK-M27-M36 Series_E
PDF
FK-2725
ZIP
FK-3035
ZIP
FK-3625A
ZIP
FK-3650
ZIP
FK-3650A
ZIP
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