Scissor Lifts
Scissor Lifts are specially made for working on projects directly overhead as they are only capable of lifting on a vertical plane. Scissor Lifts are designed of a series of linked and folding supports which crisscross in an "x" pattern. The pressure must 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 propels the unit vertically. If the equipment is hydraulically or pneumatically powered, lowering of the platform can be done by easily opening a valve in order to release the pressure.
There are a large array of scissor lift types which differ from indoor models to outdoor rough terrain models. The rough terrain scissor lift is made specially for construction operations. The rough terrain models are particularly outfitted with more dependable and stronger tires that are powered by gas or diesel engines.
4 Mechanical Lifts
Mechanical lifts are normally smaller models which depend on screw threads or rack-and-pinion to raise the platform. The mechanical lifts are limited in the amount of weight they are able to carry and the heights they could extend to. Mostly, these lift types are utilized for maintenance tasks like changing light bulbs and indoor applications.
The first scissor lift was build in the 1970s. The basic design is still utilized, even if lots of improvements have been made in the materials utilized and safety features added. This machinery became the ideal alternative for many indoor retail establishments that were starting 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. Additionally, the scissor lift provides the only industrial platforms which could be retracted and could fit into the corner of the building.