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Lift tables and lifting solutions

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          What is a lift table?

          A lift table is exactly what its name implies. In its simplest form, it is a platform that can be raised or lowered to any height desired within its range of vertical movement.


          The basic parts of a lift table are:


          The base frame of a lift table
          The base frame supports the rest of the lift table. It has to be strong, rigid and stable. ​In most cases it is designed to be placed on the floor but it can also be built into a pit, supplied with wheels or casters or furnished with a fork lift chassie.



          The lift table scissors
          The scissors of a lift table provide a straight and steady vertical motion while supporting the platform. The two sets of scissor legs are connected by shafts at the center pivot points and upper and lower hinged ends.


          The platform of a lift table
          The platform can be of any size that is compatible with the lift tables base frame and the scissors. However, the platform cannot be smaller than the length or width of the scissors or the base frame. But it can be higher and wider than the scissors and/or the base frame. Platforms can be furnished with a variety of options such as conveyor tops, turntables, tilt tops or tops equipped with clamps or special work fixtures.


          The lift table's power pack
          The lift tables power pack (most commonly electro hydraulic) consists of an electric motor, hydraulic pump, hydraulic tank, hydraulic cylinder, piping, valving and the electrical control system. When the UP button is activated, the pump pumps fluid from the tank into the cylinders causing the piston and shaft to move. The piston shaft is mechanically linked to the leg assemblies and drives them to raise the platform. A check valve in the hydraulic line between the pump and the cylinder prevent fluid from flowing backwards so the platform will remain at whatever height it is at when the UP button is deactivated. When the DOWN button is activated, a solenoid down valve opens, allowing hydraulic fluid to flow back to the reservoir. The motor does not run when the lift is lowering. The weight of the platform and gravity combine to create pressure in the cylinder that forces the fluid to flow back to the reservoir. A flow control valve located on the lowering valve VE 25, can be adjusted to provide the most desirable down speed. When the DOWN button is deactivated, the lowering valve closes and the table's height becomes fixated. The valve arrangement prevents the table from lowering if there is a power failure.


          The control unit for a lift table
          The standard control unit can either have a push-button function or a foot control function.

          How to lock the hand control unit (video)



          Benefits of lift tables

          Throughout different industrial sectors there is a lasting need to lift and position work pieces and materials. If workers are asked to accomplish this lifting and positioning without the aid of sufficient equipment, the outcome can either be fatigue and low productivity or serious personnel accidents. Between these two extremes are injuries that relate to continuous, repetitive lifting and awkward positioning such as back pain and carpal tunnel syndrome. Lift tables are the ideal solution to lifting- and positioning problems because of the following reasons:


          Stable platform
          Unlike hoists, cranes, or manipulators, lift tables provide a stable platform for lifting and lowering materials. The chance of accidentally dropping a work piece is dramatically decreased, and the danger of a suspended load swinging and causing injury to workers is eliminated.

          Infinite height adjustment
          A lift table is designed to smoothly move up or down to any desired height and to maintain that height even if there is a power failure.

          Lift tables can be provided with a wide range of options such as conveyor platforms, tilting platforms, and platforms with special fixturing such as clamps and automatic work positioning devices.

          Programmable movement
          A lift table's movement can be programmed and integrated into special handling systems.

          Lift tables can be provided in portable configurations using wheels or casters and in semi portable configurations using a THC (truck handling chassis).

          Wide vertical range
          A lift table can be installed in pits to make the lowered height leveled with the height of the floor or, if some extra height is needed, a lift table can be provided with multiple scissor legs for high lifting. Another option is the low profile lift table. Because of the low collapsed height, a low profile lift table needs no pit installation as they can be placed directly on the floor.

          Low maintenance
          Lift tables are rugged, heavy-duty machines designed to provide years of reliable service with minimum maintenance.