Scissor Lifts
Scissor Lifts are specially made for working on projects directly overhead because they are only capable of lifting on a vertical plane. Scissor Lifts are made of a series of linked and folding supports which crisscross in an "x" pattern. The pressure needs to be applied to the outside of the lowest set of supports in order for the unit to elevate into the air. This process extends the crossing pattern which vertically propels the unit. If the machine is hydraulically or pneumatically powered, lowering of the platform can be done by easily opening a valve to be able to release the pressure.
There are a variety of scissor lift models. They could differ from indoor models to those types specifically made for rough terrain that are better suited for different construction operations. The rough terrain models are specifically outfitted with more reliable and stronger tires that run by gas or diesel motors.
4 Mechanical Lifts
Mechanical lifts are normally smaller models that depend upon rack-and-pinion or screw threads to lift the platform. The mechanical lifts are limited in the heights they can extend to and the amount of weight they are able to lift. Mostly, these lift types are utilized for maintenance jobs such as changing light bulbs and indoor tasks.
The very first scissor lift was build in the 1970s. The basic design is still used, even though many improvements have been made in the materials used and safety features added. This particular machinery became the perfect option for many indoor retail establishments which were starting to expand their inventory. The scissor lift is like the forklift. The scissor lift has become well-known and sought after for its effectiveness and its portability. In addition, the scissor lift provides the only industrial platforms that could be retracted and could fit into the corner of the building.