| A bulldozer is a large and powerful crawler tractor | | | | either side and is used in general applications. |
| that is usually equipped with a front blade that is | | | | - Powered Angle Tilt Blade or PAT Blade - Has |
| used to move large amounts of soil, rubble and | | | | hydraulics cylinders to power the angle or tilt |
| rock. A bulldozer can even be used to push | | | | without the operator having to leave the operator |
| equipment such as tractor scrapers. The term | | | | seat. This type of blade can be used in general |
| bulldozer is typically used to describe the crawler | | | | applications. Crawler dozers can also have |
| tractor variety of equipment and not the rubber | | | | attachments on the back called Rippers that |
| tired variety. | | | | come in two different varieties a Single Shank |
| Crawler dozer blades can be found in a variety of | | | | Ripper (SS Ripper) or the Multi-Shank Ripper (MS |
| styles including: | | | | Ripper). Rippers are used to tear up rock and |
| - Straight Blade or S-Blade - Shorter blade with no | | | | hard earth breaking it into smaller rubble for easier |
| curve or side wings that can be used in fine | | | | removal to allow for easier grading. |
| grading applications | | | | - Single Shank Rippers (SS Rippers) - Consists of |
| - Universal Blade or U-Blade - A tall and very | | | | one shank (long claw-like device) preferred for |
| curved blade with large side wings that allow it to | | | | heavy ripping. |
| push more material | | | | - Multi-Shank Rippers (MS Rippers) - Consist of |
| - S-U Blade - A combination blade that is typically | | | | groups of two or more shanks. Bulldozers can be |
| shorter with less curvature and will have smaller | | | | found on all types of construction sites, mines, |
| side wings. Can be found in a quarry setting. | | | | heavy industrial factories and even in military |
| - Angle Blade or A-Blade - This type of blade | | | | applications. |
| pivots left or right to allow material to roll off to | | | | |