| In the lumber industry, productivity demands are growing; output is often measured in lugs per minute - a unit which describes how promptly a machine processeslogs and boards. OEMs and lumber-processing end users also require machines that is able stand up to sawmill severe conditions where temperatures fluctuate, dust severely damages equipment.
A sawmill may be equipped with planing, molding, tenoning, and other machines for finishing processes. The largest mills are usually set where lumber can be delivered by river or railroad, and the design of a sawmill depends on the mode of transportation. Among required machines there are many types of saws, side cutters, woodworking machinery. Below are the main types of saws.
Saws are divided into hand-held and mechanical. Two common types are the rip saw and the cross cut saw.
Mechanical saws are divided into three major classes determined by how they move the blade into the wood. Woodworkers distinguish circular blade saws, reciprocating blade saws and continuous band saws.
- A continuous bandsaw is a power tool with a blade consisting of a continuous band of metal with teeth along one edge to cut diverse workpieces. The band rides on two wheels rotating in the same plane. Bandsawing produces a uniform cutting action due to an evenly distributed tooth load. Bandsaws are deployed for woodworking and are especially invaluable for cutting curved shapes, but can also be deployed to produce straight cuts. The radius of a curve that can be cut out with a particular saw depends upon the width of the band and its lateral flexibility.
- A circular saw is a blade with saw teeth on the edge and the machine which causes the disk to spin. It is a machine for cutting wood or other materials and may be hand-held or table-mounted. It can also be used to produce narrow slots. These days circular saws are almost exclusively powered by electricity.
- Reciprocating blade saws are normally hand-held, and are normally 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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