Hydraulic Elevators
With elevator type comparisons, I know that hydraulic is the best choice when considering low initial cost, but can someone expand on which type of hydraulic? If we compare conventional vs holeless, holeless vs. roped, etc. ? Is the benefit of not drilling with holeless enough to make it a cost saving vs conventional?
Thanks!
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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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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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