Help Choosing – The best modular elevator for your project?

The first place to start is an overview of the main types of elevator drive systems.  Click on any header to view and download drawings for standard models.

Holeless Hydraulic

Hydraulic pistons are mounted to the pit floor on either side of the car and attached to the car crosshead. The power unit in the machine room pumps oil into the jacks to raise the car and opens the valve to release the oil back into the tank to lower it.

In-Ground Hydraulic

A hole is bored in the center of the pit, and a hydraulic piston, encased in a PVC liner, is set into the hole and attached to the bottom of the car platform.  The power unit pumps oil into the jack to raise the car and opens the valve to lower it.

Machine Room-Less Hydraulic (MRL Hydro)

This is a variant of holeless hydraulic and contains the machine room components inside the hoistway, accessed by a door on the side.  The tank sits on the pit floor; however, the valve is accessed from the ground floor door.

Machine Room-Less Traction (MRL Traction)

The top of the hoistway houses a small machine. This machine moves the car up and down via cables, sheaves and counterweights. A small space outside the hoistway houses the controller.

Overhead Traction

A machine room at the top of the hoistway houses a large machine and the controller. The machine moves the car up and down via cables, sheaves and counterweights.

 

Which one is best for your project?  The table below summarizes the capabilities of each.

Elevator Options
Option Holeless Hydraulic In-Ground Hydraulic MRL Hydraulic MRL Traction Overhead Traction
Travel Limit 60 100 24 Unlimited Unlimited
Most Cost Effective Travel Range Up to 30' 30'- 60' Up to 24' >60' >60'
Maximum Speed 200 fpm 200 fpm 200 fpm 500 fpm 500 fpm geared or 2000 fpm gearless
Maximum Capacity Unlimited Unlimited 4000 lbs 5000 lbs Unlimited
Footprint Smaller Smaller Medium (Machine Room Space) Larger (Counterweight Stack) Larger (Counterweight Stack)
Machine Room Best at lowest level adjacent
can be remote or on other floor.
Best at lowest level adjacent
can be remote or on other floor.
Inside hoistway Controller in control space
best at top level adjacent
can be remote or on other floor.
Top of hoistway
accessed from roof.
Lead Time *8 Weeks *8 Weeks *8 Weeks 22-24 Weeks 22-24 Weeks
*Due to Covid-related supply chain delays, current lead times are running 10-12 weeks.

Other factors can come into play when choosing an elevator type.  For example, a need for a shorter lead time and smaller footprint may drive you to a hydraulic elevator.  You may also opt for an MRL traction instead of hydraulic on a low-rise application as a desire to save energy or avoid using oil.

If you need help choosing which modular elevator is best for your project, contact us and we’ll be happy to talk you through the options in more detail. Also, if you have a project in mind and would like a free quick quote, click the button below.

Free Quick Quote

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