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Last edited 10 Feb 2019
A lift table (or lifting table) is a platform deck that can be elevated to raise or lower loads, including people, through relatively small distances. There are many different configurations of lift table that can be adapted to various specialised tasks. Common applications include handling pallets, loading vehicles, and positioning work so that it is more easily accessible.
The factors to consider when deciding on the most appropriate lift table include the following:
- Type of use.
- Type of load.
- Maximum load.
- Physical dimensions of the table.
- Elevation capability, from contraction to full expansion.
- Power source and mechanism providing the table’s lift.
- Safety requirements.
There are various means of providing power to the lift table:
- Manual: Operator-controlled crank, pump, racket or screw.
- Pneumatic: Pressurised air cylinder in conjunction with a compression mechanism.
- Hydraulic: Pressurised hydraulic fluids power a linear actuator.
- Electric: Rotational power source provided by an electric motor.
 Types of lifting mechanism
There are various mechanisms which can control the lifting of the table, including:
- Scissor: Power source collapses the base of a pantograph to extend table supports. See also: Scissor lift.
- Screw: Table is translated along the length of a screw as it rotates.
- Rack and pinion: Rack rotation moves the table along the track provided by the pinion.
- Telescoping: Linear actuators in the hollow cavity of a larger cylinder.
- Articulated: Jointed arms extend by the use of linear actuators, offering some horizontal movement as well as vertical.
- Chain and sprocket: Rotating sprocket with a chain drive oriented vertically.
Some lift tables include safety features to prevent injury to the operator:
- Release lock: The table locks in the event of a malfunction while extended.
- Pinch guard: If objects are compromising the table’s ability to compress, an underlying pressure-sensitive device stops the descent.
- Bellows: To prevent items compromising the lifting mechanism a skirt of rubber or vinyl can surround the lift table.
 Related articles on Designing Buildings Wiki
- Cherry picker.
- Compressed air plant.
- Construction plant.
- Forklift truck.
- Lifting device.
- Pallet jack.
- Post lift.
- Scissor lift.
- Types of crane.
- Work at height.
- Working platform.
- Working platforms for tracked plant: good practice guide to the design, installation, maintenance and repair of ground-supported working platforms.
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