| In the lumber industry, productivity demands are increasing; production is frequently measured in lugs per minute, a unit that describes how fast a machine can process logs and boards. OEMs and lumber-processing end users also require equipment which is able resist harsh mill problems where temperatures change, dust badly damages equipment.
A lumbermill may be equipped with planing, molding, tenoning, and other pieces of machinery for finishing processes. The biggest sawmills are commonly placed where lumber can be delivered by river or railroad, and the design of a sawmill is dependent on the type of transportation. Among essential machines there are diverse types of saws, side trimming shears, woodworking machinery. Below are the main types of saws.
Saws are divided into hand-powered and mechanical. Hand-held saws have about a dozen different types. A rip saw and a cross cut saw are common types. They are both deployed for cutting wood.
Mechanically powered saws are classified into 3 main classes determined by how they move the blade into the wood. Specialists distinguish circular blade saws, reciprocating blade saws and continuous band saws.
A continuous bandsaw is a powerful tool with a blade consisting of a continuous band of metal with teeth along one edge to cut various workpieces. Bandsawing produces a uniform cutting action because of an evenly distributed tooth load. Bandsaws are used for woodworking and are especially valuable for cutting irregular or curved shapes, but can also be deployed to produce straight cuts. The radius of a curve which can be cut on a particular saw depends upon the width of the band and its lateral flexibility.
A circular saw is a metal disk or blade with saw teeth on the edge as well as the machine which causes the disk to spin. It is a machine for cutting wood or other materials and may be handheld or table-mounted. It can also be deployed to make narrow slots. Today circular saws are almost exclusively powered by electricity.
Reciprocating blade saws are normally handheld, and are usually deployed in woodworking to cut out shapes. Reciprocating saws can be fitted with blades for wood or metal. They are more powerful than jigsaws.
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