Scissor Lifts
Scissor Lifts are specifically made for working on projects directly overhead as they are just 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 should be applied to the outside of the lowest set of supports in order for the unit to rise up into the air. This process extends the crossing pattern which propels the unit vertically. If the machinery is hydraulically or pneumatically powered, lowering of the platform could be done by simply opening a valve in order to release the pressure.
There are a variety of scissor lift types. They can vary from indoor models to those types particularly made for rough terrain that are better suitable for different construction operations. The rough terrain types are specially equipped with more reliable and stronger tires which operate by gas or diesel motors.
4 Mechanical Lifts
Mechanical lifts are usually smaller models which rely on rack-and-pinion or screw threads to raise the platform. The mechanical lifts are limited in the amount of weight they can lift and the heights they can extend to. Mostly, these types of lifts are utilized for maintenance tasks like for example indoor tasks and changing light bulbs.
The first scissor lift was build during the 1970s. The basic design is still used, even if a lot of improvements have been made in the materials utilized and safety features added. This equipment became the ideal alternative for lots of indoor retail establishments which were beginning to expand their inventory. The scissor lift is a relative to the forklift. The scissor lift has become known and sought after for its effectiveness as well as its portability. Additionally, the scissor lift provides the only industrial platforms which could be retracted and could fit into the corner of the building.