Scissor Lifts
Scissor Lifts are specially made for working on projects directly overhead since they are only capable of lifting on a vertical plane. Scissor Lifts are designed of a series of folding and linked supports which 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 elongates the crossing pattern which propels the unit vertically. If the machine is pneumatically or hydraulically powered, lowering of the platform could be done by simply opening a valve in order to release the pressure.
There are a large array of scissor lift types that vary from outdoor rough terrain models to indoor models. The rough terrain scissor lift is designed specifically for construction applications. The rough terrain types are particularly outfitted with stronger and more reliable tires which operate by diesel or gas motors.
4 Mechanical Lifts
Mechanical lifts are normally smaller models that rely upon screw threads or rack-and-pinion to elevate the platform. The mechanical lifts are limited in the amount of weight they are able to carry and the heights they can extend to. Mainly, these kinds of lifts are used for maintenance jobs like for instance changing light bulbs and indoor tasks.
The first scissor lift was made during the 1970s. The fundamental design is still used, even if lots of improvements have been made in the materials used and safety features added. This machinery became the ideal alternative for a lot of indoor retail establishments which were beginning to expand their inventory. The scissor lift is similar to the forklift. The scissor lift has become sought after and well-known for its portability as well as its effectiveness. Moreover, the scissor lift offers the only industrial platforms which could be retracted and able to fit into the corner of the building.