Inline Gear Drive
The Inline Gear Drive has a motor located at the top of the rail structure, and is counterweighted to enhance the power transmission. When the elevator is moving up, the counterweight is moving down and vice versa. The advantage of this system is that the motor and controller can be mounted in the hoistway. It is available as a machine room-less elevator, thus saving space within the home.
General
- Overhead minimum of 8’0″ (96 inches) with remote controller; minimum of 9’0″ with controller in hoistway with a 7’0″ interior car height
Mechanical Equipment
- 208/230 VAC, 60HZ, 20 amp, single-phase power supply for motor controller
- Two #60 roller chains
- Inverter-controlled variable speed Inline Gear Drive unit with counterweight and 2 hp motor
- Manual lowering device
Safety Features
- Slack chain safety device
- Two upper and one lower final limit
- Machine stop switch
Winding Drum Drive
A Winding Drum elevator works similar to a big winch. With a mandatory machine room, the drive is located directly adjacent to the elevator shaft and, with a series of pulleys to change the direction of the ropes (pre-stretched galvanized aircraft cable), lifts the elevator up and down.
General
- Overhead minimum of 7’10” (94 inches) with a 7’0″ interior car height
Mechanical Equipment
- 208/230 VAC, 60HZ, 30 amp, single-phase power supply for motor controller
- Two 3⁄8″ 7 X 19 galvanized aircraft cable [14400 lbs. breaking strength]
- Inverter-controlled variable speed Winding Drum Drive unit and 3 hp motor
- Manual lowering device
Safety Features
- Slack rope safety device
- Two upper and one lower final limits
Hydraulic Drive
The Hydraulic Drive, also requires a machine room, which houses the electrical components and the hydraulic tank and pump. A piston in the hoistway, connected to the hydraulic pump, raises or lowers the elevator to the desired landing. You will find the Hydraulic Drive is the quietest of these drive systems.
General
- Overhead minimum of 7’10” (94 inches) with a 7’0″ interior car height
Mechanical Equipment
- 208/230 VAC, 60HZ, 30 amp, single-phase power supply for motor controller
- Two 3⁄8” 7 X 19 galvanized aircraft cable [14400 lbs. breaking strength] with wedge rope shackles
- 80mm diameter piston/102 mm diameter cylinder including 3⁄4” reducer brushing
- 3 hp submersed motor with 2-speed valve assembly
- Manual down valve for emergency lowering
Safety Features
- Slack rope safety device
- Line rupture valve
How do I Decide Which Elevator Drive System Will Work Best for My Application?
Each of the drive systems for residential elevators brings with it a unique set of advantages. The drive system you choose will ultimately depend on your personal preference. In order to understand the nuances between the drive systems, talk to a local elevator company. Ask questions about not only the differences between the types of elevator drive systems, but about the ongoing maintenance required. Your local home elevator company can assist you in determining which type of drive will provide you with the best possible end result.
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