Scissor Lift Safety Training BC - A Scissor Lift is a practical type of platform that usually moves in a vertical direction. The equipment is capable of this movement due to the use of folding supports that are connected in a criss-cross pattern called 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 equipment to rise. Some models of scissor lift likewise have an extending "bridge" which enables operators to have closer access to the work area since the vertical only movement could have some inherent limits.
There are a lot of various models of scissor lifts obtainable. They could be powered by a variety of means like for example mechanical, via a lead screw or rack and pinion system, or pneumatic or hydraulic. Some models may require no power to enter "descent" mode but instead rely on a simple release of pneumatic or hydraulic pressure that depends on the power system employed. These pneumatic and hydraulic methods of powering these lifts are preferred because releasing a manual valve provides a fail-safe alternative of returning the platform to the ground.