
Scissor Lift Safety Training Kingston - A scissor lift is a type of platform lift which moves vertically. The lift table is moved in a vertical motion because of criss-cross folding supports which are linked in what is known as a pantograph. The platform is able to propel vertically because of the application of pressure to the outside of the lowest set of supports. This elongates the crossing pattern and causes the machinery to rise. Several models of scissor lift likewise have an extending "bridge" that allows operators to have closer access to the work area because the vertical only movement could have some inherent restrictions.
There are a lot of different kinds of scissor lifts on the market. They can be powered by a variety of means like for example mechanical, via a rack and pinion or lead screw system, or hydraulic or pneumatic. Various types may need no power to enter "descent" mode but instead rely on a simple release of hydraulic or pneumatic pressure depending on the power system used. These hydraulic and pneumatic methods of powering these lifts are preferred as releasing a manual valve gives a fail-safe choice of returning the platform to the ground.