Scissor Lift Safety Training Burlington - A Scissor Lift is a useful kind of platform that generally moves in a vertical direction. The apparatus is capable of this movement due to the use of folding supports which are linked in a criss-cross pattern known as a pantograph. The platform is able to propel vertically due to the application of pressure to the outside of the lowest set of supports. This elongates the crossing pattern and causes the machinery to rise. Some models of scissor lift also have an extending "bridge" which allows operators to have closer access to the work area since the vertical only movement could have some inherent limits.
There are lots of various types of scissor lifts available. 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. Some models might require no power to enter "descent" mode but instead rely on a simple release of pneumatic or hydraulic pressure which depends on the power system utilized. These hydraulic and pneumatic methods of powering these lifts are preferred since releasing a manual valve gives a fail-safe choice of returning the platform to the ground.