Excavator Thumb
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As the thumbs on your hand allow you to grip and hold objects, excavator thumbs serve to perform the exact same function. Before there was excavator thumbs the handling of material such as pipes, rocks, concrete blocks, was both expensive and time consuming. Extra ground crew was required to hook and unhook chains while excavators were parked while loaders were usually used to handle the materials. Workings together with the bucket, and using the same example of the hand, think of the excavator bucket as the palm of your hand, with the thumb working much the same way it does on your hand. Let’s take a closer look at this concept by taking a closer look at the excavator itself: Excavating equipment is commonly used for construction projects that require builders and contractors to move large amounts of earth, rocks and other materials. Backhoes and other types of excavating equipment commonly include a boom, or dipper stick, that extends from the main body, and a bucket pivotally attached to the end of the arm. The bucket is typically controlled by hydraulics mounted above the arm. While these types of excavators are well suited for moving loose dirt and small rocks, they are not well suited for picking up larger objects that do not fit easily into the bucket. Returning to the example, while you could, just using your palm scoop sand into it, you couldn’t pick up and hold a large object without the use of your fingers, and particularly without the use of your thumb. Don’t believe me? Then go and pour yourself a large glass of water, set it on a counter, and then pick it up and hold it without using your thumb.
Either fixed or movable, the excavator thumb opposes the movement of the bucket and facilitates grabbing and moving rocks, pipes, concrete, trees, and other larger objects. However, keep in mind that unlike your hand, the weight of an excavator thumb is critical: Too heavy, and digging performance may be affected, too light, and it won’t stand up to use. Look for an excavator with a "quick attach" coupler that lets you switch attachments without getting out of the cab. Otherwise, excavator thumbs come in a variety of sizes and prices. There are mechanical thumbs, hydraulic thumbs, hydraulic wide thumbs, progressive and non-progressive link thumbs, smart thumbs, and mini thumbs. They come with two fingers, 3 fingers and 4 fingers, then there are rigid thumbs that are adjustable and upgradeable to hydraulic thumbs. Whichever way you go with an excavator thumb, and whether you buy new or used, some basics you should consider are, easy installation, easy transport, the lightest weight possible for the excavator, and of course toughness.
Excavators Models
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