SIC 3621 Motors and Generators

Encyclopedia of American Industries | 2005 | Copyright

SIC 3621
MOTORS AND GENERATORS

This classification comprises establishments primarily engaged in manufacturing power generators, motor generator sets, and electric motors, excluding engine-starting motors. Also covered in this classification are establishments primarily involved in manufacturing railway motors and control equipment, as well as motors, generators, and control equipment for gasoline, electric, and oil-electric buses and trucks.

Establishments primarily engaged in manufacturing turbo generators are classified in SIC 3511: Steam, Gas, and Hydraulic Turbines, and Turbine Generator Set Units and those manufacturing starting motors and battery-charging generators for internal combustion engines are grouped in SIC 3694: Electric Equipment for Internal Combustion Engines. Establishments primarily engaged in manufacturing generators for welding equipment are classified in SIC 3548: Electric and Gas Welding and Soldering Equipment.

NAICS Code(s)

335312 (Motor and Generator Manufacturing)

Industry Snapshot

The motor and generator industry recorded more than $9.99 billion in 2001 sales for the industry's products, which consisted of four primary product groups: fractional horsepower motors, integral horsepower motors and generators, land prime mover generator sets, and parts and supplies for motors and generators. Other products manufactured by the industry included land transportation motors and fractional and integral motor generator sets.

Of these products, fractional horsepower motors represented nearly 37 percent of the industry's shipments, followed by prime mover generator sets, which accounted for 30 percent. Integral horsepower motors and generators accounted for another 15 percent of the industry's shipments, while parts and supplies for motors and generators represented more than 8 percent. Electric motor-driven generator sets accounted for an additional 10 percent. Revenues were down 6.5 percent from 2000.

Motor and generator manufacturers are heavily dependent on the health of several industrial markets to sustain their growth. Fractional horsepower motors are used in various household appliances, including refrigerators, freezers, air conditioners, automatic dishwashers, and microwave ovens, as well as other products requiring a small horsepower motor, such as computer disk drives. Falling prices in electronics and stable economic conditions for consumers were a boon for this sector in the late 1990s. Total revenues for fractional horsepower motors in 2001 were $3.7 billion.

Integral horsepower motors are best suited for industrial uses, where greater horsepower is required. Integral motor power vehicles are used in large construction projects and provide the necessary power for many different types of manufacturing facilities. Any significant changes in nonresidential construction activity or capital expenditures in the industrial sector generally have parallel affects on integral motor production. Again, a strong economy helped bring about a 25 percent increase for this sector between 1992 and 1997. The integral motor production market saw revenues of $1.5 billion in 2001.

In addition to these market dependencies, motor and generator sales are affected by the vacillating costs of raw materials. Steel—an essential element in the production of motors, generators, and their related parts and supplies—is subject to pernicious price swings that could impinge on the industry's profit margin. Other materials, such as wire and brushes used in the manufacturing of motors and generators, also demonstrate a propensity for erratic jumps in price that have an appreciable affect on the motor and generator industry. Government regulations requiring premium efficiency motors, rapid technological advancements, and intense foreign competition were also major factors affecting the motor and generator industry in the late 1990s.

Organization and Structure

The motor and generator industry is predominantly populated by medium and large sized companies employing more than 20 people. In 1998, the 75 largest establishments employed a total of 587,200 people. Of this number, however, 239,000 were employed by the combined divisions of General Electric Co.; 3,000 were employed by GE Motors. On average, a motor and...

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