Vancouver Scissor Lift Safety Training - A Scissor Lift is a functional kind of platform which normally 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 because of the application of pressure to the outside of the lowest set of supports. This elongates the crossing pattern and causes the equipment to rise. Several types of scissor lift also have an extending "bridge" that allows operators to have closer access to the work area as the vertical only movement could have some inherent limits.
There are numerous various kinds of scissor lifts obtainable. They could be powered by different means like for instance mechanical, via a rack and pinion or lead screw system, or pneumatic or hydraulic. Various models might require no power to enter "descent" mode but instead rely on a simple release of hydraulic or pneumatic pressure depending on the power system employed. These hydraulic and pneumatic methods of powering these lifts are preferred since releasing a manual valve provides a fail-safe option of returning the platform to the ground.