MOE Grading
(Modulus of Elasticity)
A new grading technology which determines the stiffness of lumber using sound waves. Developed in conjunction with Forest Research of Rotorua, the A-grader can measure the MOE (Modulus of Elasticity) on green rough-sawn lumber, dry planed lumber, and long or short trim blocks.
This grading technology can be implemented in the following applications:
# Sorting by MOE on green-sawn, random size and random length lumber on the green chain.
# MOE grading of finger joint blocks.
# Sorting by density for efficient kiln drying.
# MOE grading on random length dried and planed lumber.
The ability to sort for MOE prior to kiln drying saves on drying low MOE products that are normally rejected later on in the process. Linking this green MOE information back to log supply will provide very quick feedback as to the quality of the logs and expected grade recoveries. This type of technology has been proven on grading kiln-dried lumber and can be fitted into existing transverse lug chain decks with relative ease.