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Product Description A bulldozer is a crawler (caterpillar tracked tractor), equipped with a substantial metal plate (known as a blade), used to push large quantities of soil, sand, rubble, etc, during construction work. The first bulldozers were adapted from farm Holt tractors that were used to plough fields. Their versatility in soft ground for logging and road building, lead directly to them becoming the armoured tank in the first war. By the 1920s, tracked vehicles became common, particularly the Caterpillar 60. To dig canals, raise earth dams, and do other earthmoving jobs, these 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 specialized 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. A detailed and textured model which contains groups to allow some animation. Contains materials for retexturing. The model is UV mapped and textured. ![]() This item is available for sale at OnTarget3D. Additional Product Images
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