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.

Counterweights - Geared

The counterweights consist of individual flat plates of steel. The number of plates in the stack depends on the amount of weight required. The counterweights are secured within the counterweight frame by rods that run through the weights themselves. This design prevents the plates from becoming loose and falling out.
Counterweight Hitch Plate
Counterweight hitch plate is the attachment point for the other end of the ropes. The ropes are attached to the counterweight frame by a hitch plate similar to the car hitch plate. The car hangs on one end of the ropes and the counterweights hang on the other end.
Counterweight Guard
A Counterweight guard is located in the pit area. It is designed to protect individuals working in the pit from being struck by the counterweights as they come down.

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