As urban skylines grow taller, the demands placed on high-speed and high-capacity elevator systems reach new heights. Moving thousands of people daily through soaring towers requires absolute reliability, ultra-smooth performance, and above all uncompromising safety.

When it comes to protecting passengers and safeguarding infrastructure at the base of elevator shafts, Oleo International stands out as the global gold standard in gas-hydraulic elevator buffer technology.

Here’s why leading architects, engineers, and elevator OEMs around the world choose Oleo buffers for their most ambitious high-rise projects.

95+ Years of Unmatched Engineering Expertise

Safety isn’t designed overnight. Oleo has been engineering and manufacturing high-performance energy absorption solutions for over 95 years. Decades of continuous innovation, material testing, and dynamic modeling have allowed us to refine gas-hydraulic technology to perfection.

When you specify an Oleo elevator buffer, you aren’t just buying a component you are investing in decades of specialised research, industry knowledge, and deep expertise in impact dynamics.

Rigorous Safety Validation: Our Purpose-Built Test Tower

High-rise developments leave no room for guesswork. That is why Oleo validates performance through our state-of-the-art drop test tower facility.

By physically testing our buffers in controlled, real-world impact conditions, we verify:

• Controlled Deceleration: Ensuring impact forces stay well within human tolerance limits during an emergency overrun.
• Maximum Energy Absorption: Optimising the gas-hydraulic stroke to safely dissipate kinetic energy from heavy loads moving at high speeds.
• Long-Term Durability: Subjecting components to rigorous cyclic testing to guarantee consistent operational life.

This internal testing capability ensures every buffer model meets and exceeds strict international standards, including EN 81-20/50, ASME A17.1, GB 7588, and global regional safety codes.

HSL Series: Engineered for Ultra-High-Speed and High-Rise Demands

Ultra-high-rise buildings present extreme engineering challenges. Elevator systems operate at higher velocities, carry heavier payloads, and demand strict spatial efficiency in the hoistway pit. Engineered for the world’s most iconic skylines, Oleo’s HSL Series is the definitive safety solution for ultra-high-speed elevator applications.

Our HSL buffers deliver critical advantages for high-speed, high-rise developments and modernisation projects:

• Proprietary Multistage Telescopic Footprint: Oleo’s advanced telescopic technology achieves a significantly lower compressed height and smaller buffer envelope than conventional single-stage buffers. This compact design dramatically reduces required pit depths and offers flexible installation options even in modernisation projects with strict existing space constraints.
• Extreme Velocity Handling (20 m/s and Beyond): Built to handle the highest speeds on the planet, the HSL Series is rated to safely absorb impacts at velocities reaching 20 m/s and beyond (up to 20.23 m/s under ASME A17.1 reduced-stroke calculations).
• Minimum G-Force Passenger Protection: Powered by a gas-spring return energy dissipation system, the HSL Series smoothly absorbs kinetic energy to minimise G-force exposure, ensuring optimal passenger protection during unexpected stopping events.
• Global Compliance & Quality Assurance: Built to Oleo’s rigorous engineering standards, HSL buffers are fully compliant with Lift Directive 2014/33/EU and certified for major international standards, including EN 81-20/50, ASME A17.1, and GB 7588.

A Trusted Partner on Iconic Global Projects

Oleo’s global reach spans across continents, with manufacturing, technical support, and sales networks strategically located in key regions including Europe, Asia, and the Americas.

Our buffers are trusted inside thousands of high-rise, commercial, residential, and transit projects worldwide. From iconic skyscrapers in mega-cities to critical public transit networks, major global OEMs rely on Oleo to secure their most demanding hoistways.

Elevate Your Safety Strategy with Oleo

When designing high-rise elevator systems, choosing the right buffer technology is a decision that impacts safety, spatial efficiency, and long-term compliance. With over 95 years of engineering legacy, rigorous test-tower validation, and a global footprint, Oleo is the clear partner for high-rise innovations.

Contact us now to discuss your next project.