Dozers, also known commonly as bulldozers, are powerful industrial demolition and earthmoving tractors that make use of a massive leading metal blade to deliver a powerful linear driving force. The blade is attached to a push frame which include the arms that transfer force from the tractor body and drive of the dozer to reposition and push the blade. Dozers are typically diesel powered.Bulldozers are specialized to serve a very specific mechanical function but it is an extremely ubiquitous, broadly employed function in industry that they perform with particular efficiency. They are used virtually anywhere powerful linear driving force is required, be it for cutting, moving, leveling and spreading soil for land grading, clearing rocks and debris, demolishing buildings, or clearing obstructed roads. Their general power and simple, broad function is why dozers are amongst the most broadly utilized pieces of heavy industrial equipment in the world.
Dozers primarily come equipped with one of two options for locomotion, wheels or tracks. Tracked dozers are better equipped to deal with rough, uneven terrain conditions with unpredictable compressibility, where traction and stability may become significant concerns. Wheeled dozers are better suited for all-round functionality and cover more typical use cases and can operate at higher speeds than tracked dozers, as such they are more widely utilized for applications where stable ground with adequate traction is available.
Dozers can also be fitted with a vast variety of blade designs suited to many different tasks, even though they all ultimately achieve the result of driving material. Straight "S" blades have open sides and a flat driving edge that makes them better suited for breaking, cutting, stripping and shaping materials but incapable of lifting or scooping material. "U" blades have constrained side edges to form a scooped shape that helps to retain, lift and move material but this retention also prevents the dozer from being too plow through material as effectively. S-U blades are a hybrid of both and aim to provide a middle ground between the two. There are also more purpose-specific blade types that can be used for particular tasks such as grapple, mulcher and rake blades. Furthermore each of these broad categories of blades are available in a broad range of height and width dimensions, to allow the operator to choose just the right blade for a given job.Dozers are available in a huge variety of size and power classes, ranging between 15,000 lb machines with around 100 horsepower to over 200,000 lb behemoths that can approach 1000 horsepower. A larger dozer can certainly provide a lot of power and prepare one for more demanding jobs but they are also burn more fuel and are more expensive to rent, own, operate and maintain. A smaller Dozer might be more efficient for companies and individuals tackling smaller projects. Mini dozers are small tracked, lower powered vehicles that don't guzzle as much fuel and can achieve most of the major goals of normal residential jobs.