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Stephen F. Austin State University

1992

Hardwood

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Full-Text Articles in Life Sciences

Direct Comparison Of Processing Technology In Hardwood And Softwood Sawmills, Philip Steele, Tony El-Radi, Steven H. Bullard Jan 1992

Direct Comparison Of Processing Technology In Hardwood And Softwood Sawmills, Philip Steele, Tony El-Radi, Steven H. Bullard

Faculty Publications

This study compares the sawing accuracy of 273 machines in hardwood sawmills to 291 machines in softwood sawmills. Characteristics compared were kerf width, sawing variation (within-board, between-board, and total), machining wood loss per sawline, and oversizing/undersizing practices. While results varied between machine types by region, hardwood sawmills generally performed as well as, or sometimes better than, softwood sawmills for many of the machine characteristics studied.


Estimating Hardwood Sawmill Conversion Efficiency Based On Sawing Machine And Log Characteristics, Michael W. Wade, Steven H. Bullard, Philip Steele, Philip A. Araman Jan 1992

Estimating Hardwood Sawmill Conversion Efficiency Based On Sawing Machine And Log Characteristics, Michael W. Wade, Steven H. Bullard, Philip Steele, Philip A. Araman

Faculty Publications

Increased problems of hardwood timber availability have caused many sawmiller, industry analysts, and planners to recognize the importance of sawmill conversion efficiency. Conversion efficiency not only affects sawmill profits, but is also important on a much broader level. Timber supply issues have caused resource planners and policy makers to consider the effects of conversion efficiency on the utilization and depletion of the timber resource. Improvements in sawmill conversion efficiency would favorably impact sawmill profits, and would be equivalent in effect to extending existing supplies of standing timber. An equation was developed to estimate lumber recovery factor for hardwood sawmills based …