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Most major tractor implement manufacturers make box blades, including Cammond, Woods, Gannon, & BushHog. Commercial laser guided models are coming into use which automatically level the blade via reference to an external laser. Three point road graders can be viewed as a specific type of box blade, and are used to grade and maintain dirt and ...
A grader, also commonly referred to as a road grader, motor grader, or simply blade, is a form of heavy equipment with a long blade used to create a flat surface during grading. Although the earliest models were towed behind horses, and later tractors, most modern graders are self-propelled and thus technically "motor graders".
It was billed as light enough for two horses, but strong enough for four. Its blade could be raised, lowered, angled, tilted, and shifted sideways, just like the blade movements on a modern grader. Galion was known for its huge pull-type graders, some of the largest ever built, designed to be pulled behind the largest tractors.
A grader blade is a machine, either self-powered or towed by a tractor, that levels earth, rubble, etc., as in road construction. The growth of the grader blades market is being driven by an increase in building activities and the development of infrastructure in major nations such as the United States, Canada, India, China, Mexico, and Brazil.
The three main types of bulldozer blades are a U-blade for pushing and carrying soil relatively long distances, a straight blade for "knocking down" and spreading piles of soil, and a brush rake for removing brush and roots. These attachments (home-built or built by small equipment manufacturers of attachments for wheeled and crawler tractors ...
When the hopper is full (8 to 34 m 3 or 10 to 44 cu yd heaped, depending on type) it is raised, and closed with a vertical blade (known as the apron). The scraper can transport its load to the fill area where the blade is raised, the back panel of the hopper, or the ejector, is hydraulically pushed forward and the load tumbles out.