Is a Severe Duty Motor Right for Your Needs?
Severe duty motors are vital to industrial environments where high demands and airborne particulates limit the performance and lifespan of standard motors. Standard TEFC motor seals cannot withstand stress and contamination, resulting in bearing failure. Severe duty motors have a heavy cast iron construction, higher efficiency, improved insulation, and resist chemicals, moisture, and other contaminants.
Standard TEFC motors are made to meet NEMA MG1 at the lowest cost. Severe duty motors can meet IEEE-841 and offer money-saving performance in industrial environments. They are ideal for high-demand applications and can handle exposure to vibrations, mechanical stress, sawdust, ash, or outdoor weather. Standard motors will require frequent maintenance or replacement in such environments.
Meeting the IEEE-841 Standard
IEEE-841 severe duty motors operate in harsh conditions. They have improved corrosion resistance and seals on the drive end and non-drive end to protect against fluid contamination. IP55 protection to protect against dust and water is also standard in IEEE-841 motors. The motor construction is cast iron, with a gasketed cast iron terminal box, an aluminum or copper rotor cage, and a bronze alloy fan to prevent sparks. IEEE-841 motors are rated for maximum operating temperatures of 155° C with class F insulation. An IEEE-841 motor must go through a 96-hour salt spray test for corrosion resistance and have an allowable vibration of 0.08 inches per second or less.
Severe duty motors are ideal for applications where standard motors would be easily contaminated or cannot hold up in demanding conditions. The following applications depend on severe duty motors:
- Rock crushers
- Waste management
- Pulp and paper processing
- Chemical plants
- Petrochemical plants
Get The Right Electric Motor for Your Harsh Application at GIE
Severe duty motors exceed the standards of a typical TEFC motor. They offer higher efficiency and improved resistance to corrosion, contamination, and vibration to meet the demands of industrial applications. At Gainesville Industrial Electric, we repair, service, and distribute industrial electric motors, pumps, and other parts. Our family-owned business has been serving customers since 1959 and has grown into Georgia’s largest independent motor distributor. Our friendly employees have over 20 years of experience on average, and we are EASA approved.
Contact us to learn more about our severe duty motors, or request a quote to get started.