Laminated Veneer Lumber Beams and Its Manufacturing Process

Laminated Veneer Lumber beams or well known as LVL is a kind of high-strength engineered log which can be used as a substitute to substantial log, timber, concrete, steel which is used for structural applications. It is manufactured by gluing the spinning peeled wood or veneers wood that have been cut so thin and then they are put under the heat and pressure.

Since 1970s. LVL is used as a sustainable building material with humble pricing, yet offers high structural relatability and strength. In its nature LVL has great strength, consistency, and durability. LVL is known that it is less prone to reduction or corrupting. Furthermore, it has ability to span in longer distance and hold heavier weights than the ordinary log because it is made from engineered product. The veneers that is used for LVL are made in the same direction as the log so It is particularly suitable for beams. In additional, its length, depth, and strength is so effective in holding weight over longer span.

Laminated Veneer Lumber manufacturing process is start from the debarked logs Which are conditioned 24 hours in the hot water. And then, it is the lathe job to peel the woods in to thinly veneers sized woods. Usually, it is thinner than 33mm. The veneers are scanned by camera to see if there is any defect, to check the moisture content and they will be clipped approximately 1.4m width by rotary clipper. After that veneers will be dried to get 8-10 % of moisture content.

Before the veneer being laminated, the veneers are dried then they will be arranged in the same direction. When they are dried, the edge of them will be scarfed for systematic cut at the joints. Then, the veneer will be coated using adhesive and heated continuously by press machine.  

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