How does the power efficiency rating affect cutting force?
Power efficiency is the percentage of maximum cutting force that can actually be utilized for work. Traditional shears (with a single moving jaw) typically have a power efficiency rating that averages 75%. This efficiency rating is attributed to the fact that cutting force actually decreases as much as 25% after the jaw reaches its maximum mechanical advantage. For example: If a shear has an efficiency rating of 75% and a cutting force rating of 1,000 tons, in reality it can only effectively utilize 750 tons of effective force over the materials it cuts (1,000 X .75 = 750). In contrast, The new Allied-Gator® MT™ 70 mobile shear has an efficiency rating of 99% (due to its unique design) and a calculated shear force rating of 1,043 tons. Because, the MT 70 can effectively utilize all of the 1,043 tons of force over the materials it cuts, it has a comparative “real world” cutting force equal to that of a traditional 1,400-ton rated shear (1,400 X .75 = 1,050). Power efficiency and cutting
