Hydraulic Roped Elevator

This drive system utilizes a hydraulic jack and a wire rope to raise and lower the passenger car. By using this two-part system, a residential hydraulic jack does not have to perform the laborious work of lifting the elevator cab assembly. Instead, it lifts a large floating sheave, which is attached to the sling by way of steel cables. The sheave assembly then lifts and lowers the cab assembly. This clever design allows for a lifting height of 2 ft for every 1 foot of hydraulic travel, reducing energy usage and mechanical stress. Hydraulic elevators of various kinds have been around since the early ages. Modern advances use biodegradable, earth friendly hydraulic fluids.

Pros:

Virtually silent operation

Very smooth ride

Reliable operation, when maintained

Cons:

Higher cost

Potential fluid leakage due to wear and tear on the cylinder seals

Requires greater amount of routine maintenance

Requires a machine room

Installation Time = Number of Stops + 2 Days