Magazine, Tools & Home Improvement

What are the Drive Variants of a Lift?

There are two different systems: the classic rack drive and the somewhat quieter traction drive.

Rack drive/gear drive

A rack and pinion drive consists of drive gear, a rack and an electric motor. The rack and pinion drive works like a cogwheel train: the electric motor drives the cogwheel on the shelf. The drive gear runs over small bulges, the so-called teeth. The seat of the lift is driven by the respective engagement of the gear wheel in the bumps.

The lift is guided on a stable rack (e.g., made of aluminum). The frame is located in an aluminum profile so that there is no risk of injury and clean and quiet operation is guaranteed. The rack is completely covered with a straight track, with a curved course it is protected under the guide tube.

In the 2-rail system, the rack is located in the drive rail (lower rail). In the 1-rail order, the guide and drive are in one rod.

A rack and pinion drive are more restricted than other techniques in terms of rigidity and curves.

Rack and pinion drive – at a glance:

  • Most common drive variant
  • Hardly any wear parts
  • Low maintenance
  • Safe, stable, reliable

Traction drive

The traction drive is only used in the 2-rail system. The two rails are enclosed by four drive and guide rollers. Two rolls each comprise a fence. The principle is based on the pressure of drive and idler rollers on the road. The power is transmitted through the strength and the associated pulling force on the rollers.

The traction drive is more suitable for steep and winding stairways or spiral staircases since the rails can be bent more quickly and the lift runs more stable in curves. The drive works without lubricants.

Traction drive – at a glance:

  • Very quiet
  • Very smooth running
  • Reduced vibration
  • Cornering stability

Electric motor

An electric motor drives the gear or traction drive. In the event of a power failure, the battery takes over the drive. The battery charges automatically. The engine runs on normal household electricity.

  • Power: approx. 300 – 400 watts
  • Speed: about 0.10 meters per second
  • Power connection: 230 V (household socket)

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