FUJI LATEX FES Series Single-Use Emergency Stoppers

• Single-use emergency stopping: The FES Series is designed for emergency stopping when linear-motor, servo-motor, or other industrial equipment experiences runaway or overtravel. Each unit must be replaced after one emergency activation.
• Metal deformation cushioning: Impact energy is absorbed through plastic deformation of metal rather than conventional hydraulic damping, eliminating performance concerns caused by hydraulic oil leakage.
• Reduced rebound after impact: Permanent metal deformation absorbs impact energy without the rebound commonly associated with rubber stoppers, helping maintain a more controlled stop after emergency activation.
• 7 to 1,800 J capacity range: The seven-model range extends from 7 J with FES-0607 to 1,800 J with FES-3050, with maximum strokes ranging from 7 to 50 mm.
• Fixed design without adjustment: The FES Series uses a fixed configuration without damping adjustment. Selection is based on kinetic energy, thrust, stopping stroke, maximum absorption energy, and maximum drag.

Q1: What is the FUJI LATEX FES Series?
A: The FES Series consists of single-use emergency stoppers designed to absorb impact when industrial equipment experiences runaway, overtravel, or abnormal motion.

Q2: What models are included in the FES Series?
A: The series includes FES-0607, FES-1215, FES-1220, FES-1625, FES-2030, FES-2440, and FES-3050.

Q3: How does the FES Series absorb impact?
A: FES uses plastic deformation of metal to absorb impact energy rather than conventional hydraulic damping.

Q4: Can an FES emergency stopper be reused?
A: No. Each FES unit is intended for one emergency activation only and must be replaced after use.

Q5: What is the maximum absorption energy of the FES Series?
A: Maximum absorption energy reaches 1,800 J with FES-3050. The other models provide 7, 45, 80, 160, 450, and 1,000 J according to size.

Q6: What maximum strokes are available?
A: The FES Series provides maximum strokes of 7, 15, 20, 25, 30, 40, and 50 mm, with FES-3050 providing the longest 50 mm stroke.

Q7: What impact speed range does the FES Series support?
A: All seven models support impact speeds up to 3 m/s and an operating temperature range of -25 to 60 ℃.

Q8: How does FES differ from a conventional hydraulic shock absorber?
A: Conventional hydraulic shock absorbers use hydraulic damping, while FES absorbs impact through permanent metal deformation. This avoids hydraulic-oil leakage concerns, but the FES unit must be replaced after activation.

Q9: What should be checked when installing an FES emergency stopper?
A: Provide sufficient mounting strength, prevent eccentric loading, use the specified mounting portion and tightening torque, and install an external stopper according to the current product instructions.

Q10: How do I select the correct FES model?
A: Calculate the kinetic energy during the emergency condition, then confirm thrust, required stopping stroke, maximum absorption energy, and maximum drag. Multiple FES units may also be used in parallel when the selection calculation requires additional capacity.