Hydraulic Elevators

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    Rebekka O'Melia (Edited )

    Hi Rachel,

    You'd use the holeless if the soil conditions made excavation difficult (rock ledge, etc).  Holeless also can be the better choice if the project is retrofitting a hydraulic elevator in an existing building.  It'd disturb less of the existing foundation/less excavation.  The holeless hydraulic's ram is more telescopic, so the ram does not need to be set as deep into the ground.  I think it's safe to assume that the holeless hydraulic elevator would cost more than the standard hydraulic, while requiring less excavation.

    Someone else asked a similar question recently.  Here's the link to it and my answer.  https://are5community.ncarb.org/hc/en-us/community/posts/9112749055767-holed-vs-holess-hydraulic-elevator

    Rebekka O'Melia, Registered Architect, NCARB, B. Arch, M. Ed, Step UP,  Step UP ARE 5.0 Courses

     

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    Michael Ermann

    Hole-less hydraulic is the least expensive.

    Traction elevators, including machine-room-less traction elevators, cost more than hydraulic ones.

    So which costs less, an elevator with or without the hole?

    The hole-less hydraulic costs less: no added cost in drilling and labor to install the jack in the ground.

    *Very rarely are holed hydraulic elevators specified anymore due to the cost and environmental concerns.

    *For a three-story building, a MRL might cost about 10% more than a hole-less hydraulic.

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    Rachel Baker

    Thank you, both!

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