Classroom on demand

Welcome to Classroom on demand, your source for educational materials related to the vertical transportation industry. This site represents the knowledge and expertise of the best engineers and mechanics in the elevator industry, and will help those new to the elevator industry learn about the basic workings of elevator systems, and also will serve as a reference for people with more experience.

Oil Buffer

One type of buffer (for traction elevators with speeds higher than 200 fpm) which uses a combination of oil and springs to cushion a descending car or counterweight. Buffers are located in the elevator pit.

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