Scissor Lifts
Scissor Lifts are particularly made for working on projects directly overhead because they are only capable of lifting on a vertical plane. Scissor Lifts are designed of a series of linked and folding supports that crisscross in an "x" pattern. The pressure should 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 equipment is pneumatically or hydraulically powered, lowering of the platform can be done by easily opening a valve in order to release the pressure.
There are a wide variety of scissor lift models that vary from outdoor rough terrain models to indoor models. The rough terrain scissor lift is designed particularly for construction operations. The rough terrain models are specially outfitted with more dependable and stronger tires that run by gas or diesel engines.
4 Mechanical Lifts
Mechanical lifts are usually smaller models which rely upon rack-and-pinion or screw threads to raise the platform. The mechanical lifts are limited in the heights they can extend to and the amount of weight they could lift. Mostly, these types of lifts are used for maintenance jobs such as indoor applications and changing light bulbs.
The very first scissor lift was made in the 1970s. The fundamental design is still used, even though lots of improvements have been made in the materials utilized and safety features added. This particular machine became the perfect alternative for numerous indoor retail establishments that were starting to expand their inventory. The scissor lift is like the forklift. The scissor lift has become sought after and well-known for its effectiveness and its portability. Additionally, the scissor lift provides the only industrial platforms which could be retracted and could fit into the corner of the building.