Scissor Lift Safety Training Avondale - A scissor lift is a type of platform lift which 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 machinery to rise. Some kinds of scissor lift even have an extending "bridge" that allows operators to have closer access to the work area since the vertical only movement can have some inherent limits.
Scissor Lifts can contract by various means like mechanical, via a rack and pinion or lead screw system, or hydraulic or pneumatic. There are a wide variety of types available on the market. Several kinds might require no power to enter "descent" mode but instead rely on a simple release of hydraulic or pneumatic pressure which depends on the power system employed. These pneumatic and hydraulic methods of powering these lifts are preferred because releasing a manual valve gives a fail-safe choice of returning the platform to the ground.