Scissor Lift Safety Training Edmonton - A Scissor Lift is a helpful kind of platform which usually moves in a vertical direction. The equipment is capable of this movement due to the use of folding supports which are connected in a criss-cross pattern referred to as a pantograph. The platform can 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 types of scissor lift likewise have an extending "bridge" which enables operators to have closer access to the work area because the vertical only movement could have some inherent limits.
There are lots of different models of scissor lifts on the market. They can be powered by various means like mechanical, via a lead screw or rack and pinion system, or hydraulic or pneumatic. Various types might require no power to enter "descent" mode but instead depend on a simple release of pneumatic or hydraulic pressure depending on the power system utilized. These hydraulic and pneumatic methods of powering these lifts are preferred as releasing a manual valve gives a fail-safe option of returning the platform to the ground.