SRS4702 Header Predicting Pallet Part Yields from Hardwood Cants


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Abstract. Pallet cant quality directly impacts pallet part processing and material costs. By knowing the quality of the cants being processed, pallet manufacturers can predict costs to attain better value from their raw materials and more accurately price their pallets. The study objectives were 1) to develop a procedure for accurately predicting hardwood pallet part yield as a function of raw material geometry and grade, processing equipment, and pallet part geometry, 2) to develop a model for accurately predicting raw material costs for hardwood pallet parts as a function of yield, and 3) to develop and evaluate hardwood cant grading rules for use in the pallet industry.

Thirty-one yield studies were conducted throughout the Eastern United States at pallet mills producing pallet parts from hardwood cants. The total cant volume sampled was 47,258 board feet. Hardwood pallet cants were graded using the proposed hardwood cant grade rules. The usable pallet part yields and yield losses were determined for each cant grade. Yield losses were separated into three types: kerf loss, dimension loss, and defect loss. Part yield and cost prediction equations were developed and tested.

A potential single pallet cant grade has been developed from this research. Plans are being forumlated for the FS to evaluate the proposed rule and others at sawmills and pallet mills during the second half of 1999.

Marshall S. White (VA Tech), Hal L. Mitchell (VA Tech), Philip A. Araman, and Cynthia West (NERS-RWU-4803)

 



Accomplishments

  • This study of pallet cants has been completed
  • A thesis should be completed by March 1999
  • The lowest graded cants tested should not be used by pallet manufacturers
  • A new single pallet cant grade is being recommended from this study

Current and Future Work

  • Publications are in preparation
  • Evaluation of the potential single pallet cant grade and others is planned

Technology Transfer Efforts

  • The results will be presented at the February 1999 NWPCA Conference
  • Publications are in preparation

William H. Sardo, Jr. Pallet And Container Research Laboratory

 


 

Southern Research Station Forest Service USDA Virginia Tech Department of Wood Science and Forest Products Non-Timber Forest Products
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Last Modified: 06/13/07
Send Comments to Matt Winn: mwinn@fs.fed.us