Bulldozer blades are classified by letter nomenclature: S-blade for general land clearing, U-blade for pushing materials long distances, and SU-blade as a combination of the two. Brush rake and angled blades are also used for specific tasks.
There are several types of dozer blades used on large construction equipment. Classified by letter nomenclature, straight blade (S-blade), universal blade (U-blade), and combination blade (SU-blade) bulldozer blades are each used for a particular application. While all three blades are used to push materials, when used for the intended application, the specific blade used for the specific task will work the best. There is also a blade designed specifically for pushing other heavy equipment, such as the Fresno Scraper, and this specially reinforced blade is called a bull blade. Other bulldozer blades, such as a brush rake and a straight swivel blade, allow the bulldozer to complete a wide variety of earthmoving tasks.
A bulldozer is commonly known for two things: the large heavy steel tracks that are used in place of tires and the large steel blade used to push dirt, rocks and trees into large piles. The most common type of dozer blades are the S-blades, used for the purpose of pushing earth and doing general land clearing. This S-blade is also used for fine finish grading. However, the long, wide blade makes it difficult to push materials long distances, as material is able to fly off the ends of the S-blade.
The U-blade is more adept at pushing materials long distances. These bulldozer blades are taller, slightly curved, and have large spill plates attached to each end of the blade to keep materials from spilling out during a sustained push. These bulldozer blades are also best for pushing large rocks and small gravel, as the side wings hold materials in front of the blade. The SU blade is a combination of the S and U blades. These types of bulldozer blades are shorter and not as wide as S-blades and have smaller side wings than U-blades.
When using a bulldozer to remove brush, bushes and small trees, the brush blade is used. This type of blade is similar to an S-blade, with short steel rakes or picks welded to the lower edge. Brush bulldozer blades are used not only for brushing shrubbery, but also for pulling brush by the roots. Other dozer blades are angled blades, which are capable of pivoting on a central pivot to push materials to one side. This blade is unable to push as hard as an S-blade due to only being attached to a single point in the center of the blade, as opposed to being mounted on both side arms, one on each side of the blade.
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