Scissor Lifts are particularly made for working on projects directly overhead as 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 rise up into the air. This process elongates the crossing pattern which vertically propels the unit. If the machinery is pneumatically or hydraulically powered, lowering of the platform could be done by easily opening a valve in order to release the pressure.
There are various scissor lift models. They can differ from indoor models to those types specially made for rough terrain that are better suited for various construction operations. The rough terrain models are specially equipped with stronger and more reliable tires which are powered by diesel or gas engines.
4 Mechanical Lifts
Generally, mechanical lifts are smaller models which utilize rack-and-pinion or screw threads symptoms to elevate the platform. The mechanical lifts are limited in the heights they can extend to and the amount of weight they could carry. Mostly, these types of lifts are used for maintenance tasks such as 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 machine became the ideal alternative for numerous indoor retail establishments that 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 portability as well as its effectiveness. In addition, the scissor lift provides the only industrial platforms which could be retracted and able to fit into the corner of the building.