Excavators: Children's Cars & Trucks Book - Brown, John
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Excavators are massive construction machines. The smaller ones weigh about three tons, while the largest machines weigh over one hundred thousand pounds. They can dig as deep as 32 feet. The weight of an excavator varies from one operator to five. Some excavators are used to clear rock, while others are used for other purposes. These machines can be viewed from space, as well. Mini-excavators are a subset of excavators. They can fit into a tight space because they have a smaller footprint. They also weigh less, making them easier to transport. These machines are beginning to take market share…mehr

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Excavators are massive construction machines. The smaller ones weigh about three tons, while the largest machines weigh over one hundred thousand pounds. They can dig as deep as 32 feet. The weight of an excavator varies from one operator to five. Some excavators are used to clear rock, while others are used for other purposes. These machines can be viewed from space, as well. Mini-excavators are a subset of excavators. They can fit into a tight space because they have a smaller footprint. They also weigh less, making them easier to transport. These machines are beginning to take market share from backhoes, as their smaller size and ease of use make them an ideal choice for smaller jobs. The first mini-excavator was manufactured in 1968. Mini-excavators are a great alternative to larger models, but still are largely confined to jobs where they are used. When the railroad started using large excavators, their traction wheels powered the dipper stick.