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Hand Dismantling and Shredding of Japanese Automobiles to Determine Material Contents and Metal Recoveries.

Sterner JW; Steele DK; Shirts MB
MISSING :25 pages
The Bureau of Mines conducted studies on four makes of Japanese automobiles, three 1981 and one 1982 model years, received from three manufacturers to determine if their materials composition would present problems to the current technology used to process junk automobiles for metal recovery. One of each make of automobile was hand-dismantled to determine the materials composition. In addition, two nearly identical automobiles of each make were shredded at a commercial operation where all metal products and rejects were collected for analysis to determine metal and nonmetal distribution. The average weight of the four automobiles to be dismantled, less batteries, tools, and fluids, was 1,938.3 Lb. The weight was distributed as 1,472.9 Lb ferrous and 115.6 Lb nonferrous metals, 275.2 Lb combustibles, 72.3 Lb noncombustibles, and 2.3 Lb electrical components. The dismantled automobiles, less gas tanks, fluids, tools, wheels, tires, and batteries, which were all removed from the automobiles that were shredded, contained an average of 1,389.1 Lb ferrous and 101.6 Lb nonferrous metals, 305.7 Lb nonmetals, and 2.3 Lb electrical components. In comparison, materials collected from the shredded automobiles averaged 1,304 lb ferrous metals, 80 lb nonferrous metals, and 341 lb landfill materials.
Publication Date
Document Type
IH; Report of Investigations
Fiscal Year
Identifying No.
RI 8855
NIOSH Division
Source Name
Page last reviewed: November 12, 2021
Content source: National Institute for Occupational Safety and Health Education and Information Division