| DEWALT Sander DW433KT Heavy-Duty 3" X 21" VS Belt Sander Kit with Inversion Stand Frame, Hardwood Floor Sander |
| DEWALT Sanders D26450 Heavy-Duty 5" PSA Random Orbital Sanders, Palm Sanders, Electric Power Orbit Sander |
| BELT SANDERS, PALM GRIP SANDERS, ORBITAL SANDERS, RANDOM ORBIT SANDERS |
| A sander is a power tool used to smooth wood and automotive or wood finishes. Sanders have a means to attach the sandpaper that does the work. Woodworking sanders are usually operated by electrical power while the ones used in auto-body repair work on compressed air. There are many different types of these machines. Woodworking sanders include: Belt sander (hand-held or stationary) Disc sander: A disc sander is a machine that consists of a circular sand paper covered wheel being electrically spun around. It is sat between two benches- the one on the front is used to put your work on. The one at the back houses the machinery that spins the wheel around. It is used chiefly to sand wooden objects so that they have smoother edges. To use, press the piece of wood up against the spinning disc gently. Turn over and do the same again. Oscillating spindle sander: A sander mounted on a rotating spindle, but also moves up and down at the same time. Good for sanding curves and contours that would be difficult with hand sanding or orbital sanding. Random orbital sander Orbital sander: A hand-held sander that vibrates in small circles, or "orbits." Mostly used for fine sanding or where a large amount of removal is not needed. [1] Straight-line sander: A sander that vibrates in a straight line, instead of in circles. Good for places where hand sanding is tedious. Mostly they are air-powered, but there are a select few that are electric. Detail Sander: A hand-held sander that uses a vibrating head with a triangular piece of sandpaper attached. Used for sanding corners and very tight spaces. Also known as "Mouse" or "corner" sanders. Stroke sander: A large production sander that uses a hand-operated platen on a standard sanding belt to apply pressure. For large projects like tabletops, doors, and cabinets. Drum sander: A large sander that uses a rotating sanding drum. Like a planer, the operator adjusts feed rollers to send the wood inside the machine. The sander smooths it and sends it out the other side. Good for sanding large surfaces for finishing. Wide-belt sander: A large sander that is similar in concept to a planer, but is much larger, uses a large sanding belt head instead of a knife cutterhead, and requires air from a separate source to tension the belt. For rough sanding large surfaces or finishing. Found mainly in furniture shops or cabinet production factories. A belt sander is a machine used to quickly sand down wood and other materials for finishing purposes. It consists of an electrical motor that turns a pair of drums on which a seamless loop of sandpaper is mounted. Belt sanders can be either hand-held, where the sander is moved over the material, or stationary (fixed), where the material is moved to the sanding belt. Stationary belt sanders are sometimes mounted on a work bench, in which case they are called bench sanders. Stationary belt sanders are often combined with a disc sander. Belt sanders can have a very aggressive action on wood and are normally used only for the beginning stages of the sanding process, or used to rapidly remove material. Sometimes they are also used to for removing paints or finishes from wood. Fitted with fine grit sand paper, a belt sander can be used to assure a completely smooth surface. Stationary belt sanders are used for removing non-ferrous metals, such as aluminum. Non-ferrous metals tend to clog grinding wheels, quickly making them useless for grinding soft metals, while belt sanders continue to grind without clogging. This is because the small grooves in the sand paper are opened up as they go around the arc of the drive wheel. Belt sanders can vary in size from the small hand-held unit shown in the illustration to units wide enough to sand a full 4-by-8 foot sheet of plywood in a manufacturing plant. Some belt sanders can be as tall as 1.2 metres and 70 centimetres long. Sanding wood produces a large amount of sawdust. Therefore, belt sanders employed in woodworking are usually equipped with some type of dust collection system. It may be as simple as a cloth filter bag attached to a portable sander or a large vacuum system to suck dust particles away into a central collector. Random orbit sanders, also called Dual-Action sanders (referring to the rotation of the disk and the head) are hand-held power sanders where the action is a random orbit. They were first introduced in the early 1990s and quickly became tremendously popular. Random orbit sanders combine almost the speed and aggressiveness of a belt sander, with the ability to produce a finer finish than that available from a standard, slow speed, orbital finishing sander. Because of its unique random sanding action, the tool does not leave swirl marks, and it is not sensitive to the direction of the wood grain. This makes it work very well when sanding two pieces of wood that meet at right angles. Random-orbit sanders use sandpaper disks and many random-orbit sanders now come with dust collectors. Disks are attached using either pressure sensitive adhesives or a hook and loop system. On models equipped with a dust collection feature, a vacuum effect sucks sanding dust through holes in the paper and pad, feeding it to a bag or canister. From Wikipedia, the free encyclopedia |
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