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Spring Buffers for Elevators – Frequently Asked Questions
What is the maximum rated speed for spring buffers?
Spring buffers are approved for use in elevators with rated speeds up to 1.0 m/s, as specified in EN 81-20. For higher-speed installations, oil (hydraulic) buffers are required. Always verify the buffer type against the elevator's rated speed during design and inspection.
What standards govern spring buffer design and testing?
Spring buffers must comply with EN 81-20 (safety rules for traction and positive driven lifts) and EN 81-50 (design rules and calculations). They are subjected to drop tests at rated load to verify energy absorption and return-stroke performance before installation approval.
How often do spring buffers require maintenance?
Spring buffers are generally maintenance-free under normal operating conditions. However, TS EN 13015 periodic inspections require visual checks for corrosion, deformation, and correct free height. Any damaged or deformed buffers must be replaced immediately to maintain safety certification.
Can spring buffers be used in modernization projects?
Yes. Spring buffers are a common replacement component in elevator modernization and refurbishment projects, particularly for older installations operating at low speeds. Turkish suppliers on Elevator.tr stock standard and custom-dimension buffers suitable for retrofitting existing pit configurations.