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A jaw or toggle crusher consists of a set of vertical jaws, one jaw is kept stationary and is called a fixed jaw while the other jaw called a swing jaw, moves back and forth relative to it, by a cam or pitman mechanism, acting like a class II lever or a nutcracker. The volume or cavity between the two jaws is called the crushing chamber.
The jaw bucket works with the hydraulic system of the excavator. The hoses to the excavator, for intake and drain the oil are connected directly to the crusher bucket. A hydraulic valve block regulates the oil flow and the oil pressure to the correct amount of the hydraulic motor leave. The movement is transferred to one of the two crushing ...
An alligator shear, historically known as a lever shear and sometimes as a crocodile shear, is a metal-cutting shear with a hinged jaw, powered by a flywheel or hydraulic cylinder. Alligator shears are generally set up as stand-alone shears; however, there are types for excavators. The jaw size can range from 4 to 36 in (100 to 910 mm) long.
Two-jaw chucks are available and can be used with soft jaws (typically an aluminium alloy) that can be machined to conform to a particular workpiece. It is a short conceptual leap from these to faceplates holding custom fixtures, wherein the part is located against fixed stops and held there with toggle clamps or toe clamps.
In the early 1920s, Hendy's hydraulic mining equipment was used in the regrading of Seattle, [2] [6] described as perhaps the largest such alteration of urban terrain in history. [ 6 ] With the onset of the Great Depression however, and hampered by indifferent management, the Hendy Iron Works - like many other heavy equipment manufacturers of ...
A spreader is a hydraulic tool that is designed with two arms that come together in a narrow tip, and that uses hydraulic pressure to separate or spread the arms. The tip of the tool can be inserted into a narrow gap between two vehicle panels (such as between two doors, or between a door and a fender), then operated to create or widen an opening.