Bulldozer

A bulldozer is a powerful crawler (caterpillar tracked tractor) equipped with a blade. The term "bulldozer" is often used to mean any heavy engineering vehicle, but precisely, the term refers only to a tractor (usually tracked) fitted with a dozer blade. That is the meaning used herein.

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The first bulldozers were adapted from farm tractors that were used to plough fields. To dig canals, raise earth dams, and do other earthmoving jobs, the tractors were equipped with a large thick metal plate in front. This thick metal plate (it got its curved shape later) is called a "blade". The blade peels layers of soil and pushes it forward as the tractor advances. Several specialised blades have been developed: for high volume loads such as coal, rakes to remove only larger boulders, or blades with razor sharp edges to cut tree stumps. In some early models the driver sat on top in the open ithout a cabin.

Crawler: The word crawler can have different meanings:...

Caterpillar track: Caterpillar tracks are large (modular) tracks used on tanks, construction equipment and certain other off-road vehicles. Unlike the rubber-made Kegresse tracks used on snowmobiles, the Caterpillar tracks are made of metal or some rigid material. The tracks help the vehicle to distribute its weight ...

Tractor: A tractor (from Latin trahere "to pull") is a device intended for drawing, towing or pulling something which cannot propel itself and, often, powering it too. Most commonly the word is used to describe a vehicle intended for such a task on some other vehicle or object....

Bulldozer related Images and Photos (experimental)

A Bulldozer and a Heap of Gravel