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Hydraulic Elevators Hydraulic Elevators are durable home lifts. They have a standard weight capacity of 750 pounds and can carry up to one thousand pounds. This type of Home Elevator requires a pit at the lowest landing and a separate machine room on each floor. Hydraulic elevators raise and lower the cab using a hydraulic piston. This type of elevator provides a very quiet and smooth ride. Machine Room-Less MRL Elevators The drive and controller of an MRL elevator are housed in the hoistway, eliminating the need for a separate machine room. This can be advantageous if you lack space for a machine room but still require a larger cab capable of serving up to five landings. Counterweight electric chain drive and cable drive systems are available for MRLs.