Scissor Lift Safety Training Saskatchewan - A scissor lift is a kind of platform lift that moves vertically. The lift table is moved in a vertical motion due to criss-cross folding supports that are connected in what is referred to as a pantograph. The platform can 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. Some kinds of scissor lift also have an extending "bridge" that enables operators to have closer access to the work area as the vertical only movement can have some inherent limits.
There are lots of various kinds of scissor lifts on the market. They can be powered by different means like for instance mechanical, via a lead screw or rack and pinion system, or pneumatic or hydraulic. Several models might require no power to enter "descent" mode but instead depend on a simple release of pneumatic or hydraulic pressure that depends 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 choice of returning the platform to the ground.