More about Clamps

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Clamps are tools used in a multitude of positioning, locking and compressing applications. They are manufactured in a wide range of sizes, materials and designs, and to a variety of technical specifications. Among the types available are bar, band, angle miter, pipe, spring and “C” clamps, each of which are designed for specific uses.

Perhaps the most familiar type of clamp is the “C” clamp, which consists of a c-shaped bracket that holds a threaded bolt. The bolt can be tightened and loosened between both ends of the c-shaped bracket, allowing it to hold objects firmly between them. One end of the bolt is fitted with a handle or bar to enable it to be turned by hand, while the end to be pressed against the work piece usually has a flat foot. The foot can damage certain materials, such as wood, plastic and glass, especially when the bolt is tightened too much. “C” clamps are used for various industrial, commercial and production applications, such as welding and gripping, and are rated by depth and load limit (typically specified in pounds or kilograms). It is important to use the proper size clamps, as excessively large clamps will cause unnecessary strain on both the clamp and work piece, and clamps that are too small will be unable to provide the necessary pressure.

Pipe clamps, which are also available in a variety of designs, generally involve a circular or semi-circular fitting and an adjustable screw or bolt that connects the two ends of the clamp. Unlike the “C” clamp, adjusting the screw causes the fitting to tighten, and the screw has no direct contact with the work piece. Generally, these clamps are made from metal and are used to provide additional support to hanging pipes. Band clamps, on the other hand, use high-strength textiles to allow for the clamping of irregular shapes. Spring clamps resemble pliers, and can be opened by squeezing the handles closer together; these clamps are helpful for quick positioning tasks, but are not suited to heavy or long-term use.