The lowest or basic strength of aluminum and each of its alloys is determined when the metal is in the annealed or soft condition. This is designated as the O (letter O) temper. For example, the annealed condition for alloy 1145 is written 1145-O.
What is a scissor lift? A scissor lift is a type of aerial work platform used to lift personnel. These platforms extend and retract vertically with the help of the scissor linkages that fold in a crisscross manner. Scissor lifts are typically electrically powered although there are some that are powered by internal combustion engines.
When looking for the right one to fit your needs, consider some of these factors: Spider Lift. Scissor Lift. 1  Working height. 2  Working height is how high the aerial lift can safely raise and move the forks, booms or baskets. 3  The starting point for choosing a lift is to know how high you need to go. 4  Horizontal reach.