Handbook of mechanical and electrical cost data, giving shipping weights, capacities, outputs, and net prices of machines and apparatus, and detailed costs of installation, maintenance, depreciation and operation, together with many principles and data relating to engineering economics (1918)
Gillette, Halbert Powers, 1869-, Dana, Richard Turner, 1876-1928, joint author · New York, McGraw-Hill · leaf 1413
medium-speed, 5-ton crane of 25-ft. span, arbitrarilytaken as unity. At the present time, owing to the high price of materials and oflabor, a 5-ton, medium-speed, overhead electric crane of 25-ft.span would cost in the neighborhood of $4,250, so that (from 1390 MECHANICAL AND ELECTRICAL COST DATA… … 5 10 15 20 25 75 40 50 60SPAN- FEET Fig 45 Comparative prices of standard overhead electric cranesbased on the cost of a 5-ton medium speed crane as the unit. times, the average cost of the 30-ton crane would be about $9,350. Depreciation of overhead electric cranes is usually figured at 5%, a safe…
