Published at Friday, 18 January 2019. Industrial Machinery. By Allete Carpentier.
Splitter and Anti Kickback PawlsOne of the leading causes of table saw related accidents is kickback, which occurs when a piece of wood gets ejected at high speed, back toward the operator. This can cause some serious injuries. This happens when the wood binds between the fence and the blade, and then gets caught by the teeth on the back on the blade. In order to prevent that from happening, many table saws are fitted with a splitter. A splitter is basically a small vertical blade made of metal or plastic, which holds the Cerf open behind the table saw blade. It's a simple solution that works, up to a certain point.
Blade RPM. The maximum speed of a blade is usually expressed in RPM (revolutions per minute). One thing you need to look for is the speed of the table saw, which must never exceed the speed of the blade. Blades are designed to rotate at a certain speed, and using it on a table saw which exceeds that speed will cause the blade to break apart due to centrifugal force. This is pretty much everything you need to know about blades. If you decide you want to learn even more about blades and their properties, this should serve as a good base for you to build upon.
Blade Sizing. Blade Sizes there are two ways table saw blades are sized: their outside diameter, and the diameter of the mounting hole. Most standard blades for table saws are 8, 10 or 12 inches in diameter, but there are blades as small as 3 3/8 inches in diameter and as large as 30 inches in diameter. The bigger ones are designed for specific commercial purposes, of course, but man, that's a big blade!
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