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Because the small grooves in the sandpaper are opened up as they go around the arc of the drive wheel, belt sanders are less prone to clogging. Belt sanders can vary in size from the small handheld unit shown in the illustration to units wide enough to sand a full 1.2 by 2.5 m (4-by-8 foot sheet) of plywood in a manufacturing plant. Some belt ...
Furthermore, a wide belt grinding machine can be constructed with single or multiple heads. The first head is used for coarse grinding and the next heads gradually make a finer finish. Wide belt grinding is also used as a high stock removal method for special metals (e.g. stainless steel , titanium , and nickel alloys).
Wide-belt sander: A large sander similar in concept to a planer, but much larger. Uses a large sanding belt head instead of a planer's shaping head, and requires air from a separate source to tension the belt. For rough sanding large surfaces or finishing. Used mainly for manufacturing furniture and cabinets.
The belt sander was invented by Eugen Laegler in 1969 out of Güglingen, Germany. 90% of the area can be reached with the belt/drum sander. The remaining 10% left such as edges, corners, under cabinets, and stairs, are sanded by an edge sanding machine. A rotary machine known as a multi disc sander or buffer is then used for the final sanding ...
Belt grinder, which is usually used as a machining method to process metals and other materials, with the aid of coated abrasives. Analogous to a belt sander (which itself is often used for wood but sometimes metal). Belt grinding is a versatile process suitable for all kind of applications, including finishing, deburring, and stock removal.
In 1926, Porter-Cable began to develop a niche in portable electric power tools when Chief Engineer Art Emmons invented the portable electric belt sander, called the Take-About Sander. In 1929, Emmons invented the helical drive circular saw, a compact, lightweight design that is still the most widely used circular saw design produced today.
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