Description of Industries and Summary of Findings INDUSTRY 3531, CONSTRUCTION MACHINERY This industry is made up of establishments primarily engaged in manufacturing heavy machinery and equipment of a type used primarily by the construction industries, such as bulldozers, concrete mixers, cranes (except industrial plant overhead- and truck-type cranes), dredging machinery, pavers, and power shovels. Also included in this industry are establishments primarily engaged in manufacturing forestry equipment and certain specialized equipment, not elsewhere classified, similar to that used by the construction industries, such as elevating platforms, ship cranes and capstans, aerial work platforms, and automobile wrecker hoists. Establishments primarily engaged in manufacturing mining equipment are classified in industry 3532; those manufacturing well-drilling machinery are classified in industry 3533; those manufacturing industrial plant overhead traveling cranes are classified in industry 3536; and those manufacturing industrial truck-type cranes are classified in industry 3537. The 1992 definition of this industry is the same as that used in the 1987 Standard Industrial Classification (SIC) system. The SIC number and title also are the same. In the 1992 Census of Manufactures, Industry 3531, Construction Machinery, had employment of 77.1 thousand. The employment figure was 5 percent below the 81.1 thousand reported in 1987. Compared with 1991, employment decreased 7 percent. The 1991 data are based on the Census Bureau's annual survey of manufactures (ASM), which is a sample survey conducted each year between censuses. The leading States in employment in 1992 were Illinois, Iowa, Pennsylvania, and Wisconsin. These same States were the leaders in 1987. The total value of shipments for establishments classified in this industry was $13.5 billion. Establishments in virtually all industries ship secondary products as well as products primary to the industry in which they are classified and have some miscellaneous receipts, such as resales and contract receipts. Industry 3531 shipped $11.9 billion of construction machinery and equipment considered primary to the industry, $673.8 million of secondary products, and had $896.7 million of miscellaneous receipts, resales, and contract work. Thus, the ratio of primary products to the total of both secondary and primary products shipped by establishments in this industry was 95 percent (specialization ratio). In 1987, the specialization ratio was 94 percent. Establishments in this industry also accounted for 96 percent of products considered primary to the industry no matter where they were actually produced (coverage ratio). In 1987, the coverage ratio also was 96 percent. The products primary to industry 3531, no matter in what industry they were produced, appear in file MC92F6A and aggregate to $12.4 billion. For further explanation of specialization and coverage ratios, see file MC92F5B and the appendixes. The total cost of materials, services, and fuels and energy used by establishments classified in the construction machinery industry amounted to $7.6 billion. Data on specific materials consumed appear in file MC92F7. Single-establishment companies in this industry with less than 15 employees were excluded from the mail portion of the census. The data for these establishments (and a small number of larger establishments whose reports were not received at the time the data were tabulated) were obtained from administrative records of other agencies or developed from industry averages. These establishments accounted for 7 percent of the total value of shipments. INDUSTRY 3532, MINING MACHINERY This industry is made up of establishments primarily engaged in manufacturing heavy machinery and equipment used by the mining industries, such as coal breakers, mine cars, mineral cleaning machinery, concentration machinery, core drills, coal cutters, portable rock drills, and rock crushing machinery. Establishments primarily engaged in manufacturing construction machinery are classified in industry 3531; those manufacturing well-drilling machinery are classified in industry 3533; and those manufacturing coal and ore conveyors are classified in industry 3535. The 1992 definition of this industry is the same as that used in the 1987 Standard Industrial Classification (SIC) system. The SIC number and title also are the same. In the 1992 Census of Manufactures, Industry 3532, Mining Machinery, had employment of 12.6 thousand. The employment figure was 7 percent below the 13.6 thousand reported in 1987. The leading States in employment in 1992 were Virginia, Pennsylvania, West Virginia, and Wisconsin, accounting for approximately 48 percent of the industry's employment. This represents a shift from 1987 when Ohio, Pennsylvania, Virginia, and West Virginia were the leading States. The total value of shipments for establishments classified in this industry was $1.6 billion. Establishments in virtually all industries ship secondary products as well as products primary to the industry in which they are classified and have some miscellaneous receipts, such as resales and contract receipts. Industry 3532 shipped $1.2 billion of mining machinery considered primary to the industry, $155.7 million of secondary products, and had $179.9 million of miscellaneous receipts, resales, and contract work. Thus, the ratio of primary products to the total of both secondary and primary products shipped by establishments in this industry was 89 percent (specialization ratio). In 1987, the specialization ratio was 86 percent. Establishments in this industry also accounted for 86 percent of products considered primary to the industry no matter where they were actually produced (coverage ratio). In 1987, the coverage ratio also was 86 percent. The products primary to industry 3532, no matter in what industry they were produced, appear in file MC92F6A and aggregate to $1.4 billion. For further explanation of specialization and coverage ratios, see file MC92F5B and the appendixes. The total cost of materials, services, and fuels and energy used by establishments classified in the mining machinery industry amounted to $811.8 million. Data on specific materials consumed appear in file MC92F7. Single-establishment companies in this industry with less than 10 employees were excluded from the mail portion of the census. The data for these establishments (and a small number of larger establishments whose reports were not received at the time the data were tabulated) were obtained from administrative records of other agencies or developed from industry averages. These establishments accounted for 10 percent of the total value of shipments. INDUSTRY 3533, OIL AND GAS FIELD MACHINERY This industry is made up of establishments primarily engaged in manufacturing machinery and equipment for use in oil and gas fields or for drilling water wells, including portable drilling rigs. Establishments primarily engaged in manufacturing offshore oil and gas well drilling and production platforms are classified in industry 3731. The 1992 definition of this industry is the same as that used in the 1987 Standard Industrial Classification (SIC) system. The SIC number and title also are the same. In the 1992 Census of Manufactures, Industry 3533, Oil and Gas Field Machinery, had employment of 27.0 thousand. The employment figure was 8 percent above the 24.8 thousand reported in 1987. The leading States in employment in 1992 were Texas, Oklahoma, Louisiana, and California, accounting for approximately 92 percent of the industry's employment. These same States were the leaders in 1987 when they accounted for 90 percent of the industry's employment. The total value of shipments for establishments classified in this industry was $3.9 billion. Establishments in virtually all industries ship secondary products as well as products primary to the industry in which they are classified and have some miscellaneous receipts, such as resales and contract receipts. Industry 3533 shipped $2.9 billion of oil and gas field machinery considered primary to the industry, $326.9 million of secondary products, and had $712.1 million of miscellaneous receipts, resales, and contract work. Thus, the ratio of primary products to the total of both secondary and primary products shipped by establishments in this industry was 90 percent (specialization ratio). In 1987, the specialization ratio was 93 percent. Establishments in this industry also accounted for 97 percent of products considered primary to the industry no matter where they were actually produced (coverage ratio). In 1987, the coverage ratio was 96 percent. The products primary to industry 3533, no matter in what industry they were produced, appear in file MC92F6A and aggregate to $3.0 billion. For further explanation of specialization and coverage ratios, see file MC92F5B and the appendixes. The total cost of materials, services, and fuels and energy used by establishments classified in the oil and gas field machinery industry amounted to $1.7 billion. Data on specific materials consumed appear in file MC92F7. Single-establishment companies in this industry with less than 5 employees were excluded from the mail portion of the census. The data for these establishments (and a small number of larger establishments whose reports were not received at the time the data were tabulated) were obtained from administrative records of other agencies or developed from industry averages. These establishments accounted for 10 percent of the total value of shipments. INDUSTRY 3534, ELEVATORS AND MOVING STAIRWAYS This industry is made up of establishments primarily engaged in manufacturing passenger or freight elevators, automobile lifts, dumbwaiters, and moving stairways. Establishments primarily engaged in manufacturing commercial conveyor systems and equipment are classified in industry 3535; and those manufacturing farm elevators are classified in industry 3523. The 1992 definition of this industry is the same as that used in the 1987 Standard Industrial Classification (SIC) system. The SIC number and title also are the same. In the 1992 Census of Manufactures, Industry 3534, Elevators and Moving Stairways, had employment of 7.7 thousand. The employment figure was 25 percent below the 10.2 thousand reported in 1987. The leading States in employment in 1992 were Indiana, Mississippi, New York, and Pennsylvania. This represents a shift from 1987 when Indiana, Mississippi, Ohio, and New York were the leading States. The total value of shipments for establishments classified in this industry was $975.6 million. Establishments in virtually all industries ship secondary products as well as products primary to the industry in which they are classified and have some miscellaneous receipts, such as resales and contract receipts. Industry 3534 shipped $892.4 million of elevators and moving stairways considered primary to the industry, $31.5 million of secondary products, and had $51.7 million of miscellaneous receipts, resales, and contract work. Thus, the ratio of primary products to the total of both secondary and primary products shipped by establishments in this industry was 97 percent (specialization ratio). In 1987, the specialization ratio was 98 percent. Establishments in this industry also accounted for 97 percent of products considered primary to the industry no matter where they were actually produced (coverage ratio). In 1987, the coverage ratio was 94 percent. The products primary to industry 3534, no matter in what industry they were produced, appear in file MC92F6A and aggregate to $919.8 million. For further explanation of specialization and coverage ratios, see file MC92F5B and the appendixes. The total cost of materials, services, and fuels and energy used by establishments classified in the elevators and moving stairways industry amounted to $591.1 million. Data on specific materials consumed appear in file MC92F7. Single-establishment companies in this industry with less than 10 employees were excluded from the mail portion of the census. The data for these establishments (and a small number of larger establishments whose reports were not received at the time the data were tabulated) were obtained from administrative records of other agencies or developed from industry averages. These establishments accounted for 10 percent of the total value of shipments. INDUSTRY 3535, CONVEYORS AND CONVEYING EQUIPMENT This industry is made up of establishments primarily engaged in manufacturing conveyors and conveying equipment for installation in factories, warehouses, mines and other industrial and commercial establishments. Establishments primarily engaged in manufacturing farm elevators and conveyors are classified in industry 3523; those manufacturing passenger or freight elevators, dumbwaiters, and moving stairways are classified in industry 3534; and those manufacturing overhead traveling cranes and monorail systems are classified in industry 3536. The 1992 definition of this industry is the same as that used in the 1987 Standard Industrial Classification (SIC) system. The SIC number and title also are the same. In the 1992 Census of Manufactures, Industry 3535, Conveyors and Conveying Equipment, had employment of 30.3 thousand. The employment figure was 4 percent below the 31.5 thousand reported in 1987. The leading States in employment in 1992 were Michigan, Ohio, Texas, and Kentucky, accounting for approximately 35 percent of the industry's employment. This represents a shift from 1987 when Michigan, Ohio, Kentucky, and Illinois were the leading States. The total value of shipments for establishments classified in this industry was $3.9 billion. Establishments in virtually all industries ship secondary products as well as products primary to the industry in which they are classified and have some miscellaneous receipts, such as resales and contract receipts. Industry 3535 shipped $3.3 billion of conveyors and conveying equipment considered primary to the industry, $269.7 million of secondary products, and had $349.1 million of miscellaneous receipts, resales, and contract work. Thus, the ratio of primary products to the total of both secondary and primary products shipped by establishments in this industry was 92 percent (specialization ratio). In 1987, the specialization ratio also was 92 percent. Establishments in this industry also accounted for 91 percent of products considered primary to the industry no matter where they were actually produced (coverage ratio). In 1987, the coverage ratio was 92 percent. The products primary to industry 3535, no matter in what industry they were produced, appear in file MC92F6A and aggregate to $3.6 billion. For further explanation of specialization and coverage ratios, see file MC92F5B and the appendixes. The total cost of materials, services, and fuels and energy used by establishments classified in the conveyors and conveying equipment industry amounted to $1.9 billion. Data on specific materials consumed appear in file MC92F7. Single-establishment companies in this industry with less than 10 employees were excluded from the mail portion of the census. The data for these establishments (and a small number of larger establishments whose reports were not received at the time the data were tabulated) were obtained from administrative records of other agencies or developed from industry averages. These establishments accounted for 13 percent of the total value of shipments. INDUSTRY 3536, HOISTS, CRANES, AND MONORAILS This industry is made up of establishments primarily engaged in manufacturing overhead traveling cranes, hoists, and monorail systems for installation in factories, warehouses, marinas, and other industrial and commercial establishments. Establishments primarily engaged in manufacturing cranes, except industrial types, automobile wrecker hoists, and aerial work platforms are classified in industry 3531, and those manufacturing aircraft loading hoists are classified in industry 3537. The 1992 definition of this industry is the same as that used in the 1987 Standard Industrial Classification (SIC) system. The SIC number and title also are the same. In the 1992 Census of Manufactures, Industry 3536, Hoists, Cranes, and Monorails, had employment of 7.0 thousand. The employment figure was unchanged from 1987. The leading States in employment in 1992 were Ohio, Wisconsin, Michigan, and Texas, accounting for approximately 40 percent of the industry's employment. This represents a shift from 1987 when Ohio, Michigan, Pennsylvania, and Wisconsin accounted for approximately 43 percent of the industry's employment. The total value of shipments for establishments classified in this industry was $911.5 million. Establishments in virtually all industries ship secondary products as well as products primary to the industry in which they are classified and have some miscellaneous receipts, such as resales and contract receipts. Industry 3536 shipped $738.5 million of hoists, cranes, and monorails considered primary to the industry, $76.0 million of secondary products, and had $96.9 million of miscellaneous receipts, resales, and contract work. Thus, the ratio of primary products to the total of both secondary and primary products shipped by establishments in this industry was 91 percent (specialization ratio). In 1987, the specialization ratio was 93 percent. Establishments in this industry also accounted for 91 percent of products considered primary to the industry no matter where they were actually produced (coverage ratio). In 1987, the coverage ratio was 78 percent. The products primary to industry 3536, no matter in what industry they were produced, appear in file MC92F6A and aggregate to $810.2 million. For further explanation of specialization and coverage ratios, see file MC92F5B and the appendixes. The total cost of materials, services, and fuels and energy used by establishments classified in the hoists, cranes, and monorails industry amounted to $410.0 million. Data on specific materials consumed appear in file MC92F7. Single-establishment companies in this industry with less than 5 employees were excluded from the mail portion of the census. The data for these establishments (and a small number of larger establishments whose reports were not received at the time the data were tabulated) were obtained from administrative records of other agencies or developed from industry averages. These establishments accounted for 20 percent of the total value of shipments. INDUSTRY 3537, INDUSTRIAL TRUCKS AND TRACTORS This industry is made up of establishments primarily engaged in manufacturing industrial trucks, tractors, trailers, stackers (truck-type), and related equipment, used for handling materials on floors and paved surfaces in and around industrial and commercial plants, depots, docks, airports, and terminals. Establishments primarily engaged in manufacturing motor vehicles and motor vehicle type trailers are classified in industry group 371; those manufacturing farm-type wheel tractors are classified in industry 3523; those manufacturing tractor shovel loaders and tracklaying tractors are classified in industry 3531; and those manufacturing wood pallets and skids are classified in industry 2448. The 1992 definition of this industry is the same as that used in the 1987 Standard Industrial Classification (SIC) system. The SIC number and title also are the same. In the 1992 Census of Manufactures, Industry 3537, Industrial Trucks and Tractors, had employment of 17.5 thousand. The employment figure was 13 percent below the 20.1 thousand reported in 1987. The leading States in employment in 1992 were Kentucky, New York, North Carolina, and Ohio. This represents a shift from 1987 when Ohio, New York, California, and North Carolina were the leading States. The total value of shipments for establishments classified in this industry was $2.8 billion. Establishments in virtually all industries ship secondary products as well as products primary to the industry in which they are classified and have some miscellaneous receipts, such as resales and contract receipts. Industry 3537 shipped $2.4 billion of industrial trucks and tractors considered primary to the industry, $112.9 million of secondary products, and had $199.7 million of miscellaneous receipts, resales, and contract work. Thus, the ratio of primary products to the total of both secondary and primary products shipped by establishments in this industry was 96 percent (specialization ratio). In 1987, the specialization ratio was 95 percent. Establishments in this industry also accounted for 92 percent of products considered primary to the industry no matter where they were actually produced (coverage ratio). In 1987, the coverage ratio was 94 percent. The products primary to industry 3537, no matter in what industry they were produced, appear in file MC92F6A and aggregate to $2.7 billion. For further explanation of specialization and coverage ratios, see file MC92F5B and the appendixes. The total cost of materials, services, and fuels and energy used by establishments classified in the industrial trucks and tractors industry amounted to $1.7 billion. Data on specific materials consumed appear in file MC92F7. Single-establishment companies in this industry with less than 5 employees were excluded from the mail portion of the census. The data for these establishments (and a small number of larger establishments whose reports were not received at the time the data were tabulated) were obtained from administrative records of other agencies or developed from industry averages. These establishments accounted for 12 percent of the total value of shipments.