Elevator energy storage buffer

What is elevator buffer LP?

The elevator buffer of type LP is an energy dissipation type buffer according to EN 81-20, EN 81-50 5.5 and therefore may be universally used for all applications in the construction of elevators. The design type approval permits the use in passenger and freight elevators both under the elevator car and under the counter weight.

What is an elevator buffer?

Elevator buffers are mechanical devices installed at the bottom of elevator shafts. Their primary function is to absorb the kinetic energy generated during emergency situations, such as an overspeed condition or a sudden stop. By absorbing this energy, elevator buffers protect the elevator car and its occupants from potential harm.

What are the requirements for elevator buffers?

The requirement for elevator buffers fall into two categories depending on the type of buffer. Energy accumulation buffers: These can take the form of simple mechanical springs or polymer buffers which store the absorbed energy of the impact in the form of strain energy.

What are the different types of elevator buffers?

According to different working principles and design characteristics, elevator buffers can be divided into several main types. Elevator buffers types mainly include energy-storage buffers and energy-consuming buffers. Polyurethane and spring buffers are energy-storage buffers, and hydraulic buffers are energy-consuming buffers.

What is a oleo elevator buffer?

Oleo elevator buffers are designed to protect people and equipment from forces generated from an impact resulting from equipment failure or operator error. Oleo has achieved this on most buffer types using hydraulic energy absorption systems combined with a gas return spring to give unsurpassed energy dissipation and recovery.

Why do elevators use polyurethane buffers?

Polyurethane has excellent energy absorption capacity and elasticity. It can quickly return to its original state when the elevator stops, releasing stored elastic potential energy, thereby reducing impact force. Polyurethane buffers are typically used for elevators with speeds less than or equal to 1 meter per second.