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The first tracked loaders were built from tracked tractors with custom-built loader buckets. The first loaders were cable-operated like the bulldozers of the era. These tracked loaders lacked the ability to dig in hard ground, but so did the bulldozers of the day. They were mostly used for moving stockpiled material and loading trucks and rail ...
Skid-steer loaders are sometimes equipped with tracks instead of the wheels, and such a vehicle is known as a compact track loader. [7] Skid steer loaders, both wheel and track models, operate most efficiently when they are imbalanced – either the front wheels or the back wheels are more heavily loaded.
Caterpillar Inc., also known as Cat, is an American construction, mining and other engineering equipment manufacturer. [6] The company is the world's largest manufacturer of construction equipment. [3] [7] [8] In 2018, Caterpillar was ranked number 73 on the Fortune 500 list [9] and number 265 on the Global Fortune 500 list. [10]
The 370 hp (280 kW) D9N replaced D8L in 1987 CAT D9T, the current generation of the Caterpillar D9 tracked-type tractor series. The Caterpillar D9 is a large track-type tractor designed and manufactured by Caterpillar Inc. It is usually sold as a bulldozer equipped with a detachable large blade and a rear ripper attachment.
The name Caterpillar came from a soldier during the tests on the Hornsby crawler, "trials began at Aldershot in July 1907. The soldiers immediately christened the 70bhp No.2 machine the 'caterpillar'." [26] Holt adopted that name for his "crawler" tractors. Holt began moving from steam to gasoline-powered designs, and in 1908 brought out the 40 ...
John Deere Front end loaders CAD model tracing of a tractor mounted loader mechanism CAD model tracing of a skid loader mechanism. A loader is a heavy equipment machine used in construction to move or load materials such as soil, rock, sand, demolition debris, etc. into or onto another type of machinery (such as a dump truck, conveyor belt, feed-hopper, or railroad car).
When used as a loader the single boom (rather than twin arms) is very highly loaded and is a weakness, even with careful design. A vehicle which has a 5,000 lb (2,300 kg) lift capacity with the boom retracted may be able to safely lift as little as 400 lb (180 kg) with the boom fully extended at a low angle.
The Caterpillar Challenger MT875B was the most powerful production tractor available during its span with 430 kW gross (580 hp) engine power. [6] In 2007, the MT875B broke the world record for most land tilled in 24 hours with a custom-made, 14 metres (46 ft) disc harrow fabricated by Grégoire Besson. [7] It tilled 644 hectares (1,590 acres).