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.
Unlike scissor lifts, aerial lifts are often used on uneven terrain and can be subject to sudden horizontal and/or vertical movements that could eject the employee from the platform while the machine is traveling.s a risk management consultant I am often times asked why do employees working on an aerial lift have to use personal fall protection equipment when those on scissor lifts do not?