Electric Motors
Quarry Duty
Quarry Duty motors also known as Crusher Duty motors typically feature oversized bearings and shafts, high strength shafts, exceptional high torque, larger frames, and roller bearings for heavy radial loads associated with belt-driven applications. Quarry Duty motors do not typically feature premium efficiencies as they are not required to meet NEMA Premium efficiency levels as defined in EISA 2007.
ESR Motor Systems stocks a large number of 4 and 6-pole quarry duty motors up to 500 horsepower.
Featured Manufacturers:
Toshiba Quarry Duty motors feature exceptional high torque, oversized superior-grade roller bearings, and shafts built with high strength 4142 steel. They are available from 75 to 600 horsepower with 460 and 575 voltages.
ESR stocks Toshiba Quarry Duty motors between 75 and 500 horsepower, 4 and 6 pole.
Baldor Quarry Duty motors feature high torque, regreasable bearings, high strength steel shaft and roller bearings. These motors range from 2 to 350 horsepower at 460 volt.
ESR has quick access to Baldor Quarry Duty motors at a nearby warehouse.
Leeson/Lincoln Quarry Duty motors feature a drive end roller bearing, high strength steel shaft, superior speed-torque curves, and NEMA Premium efficiencies. These motors are also available with either cast iron or rolled steel construction. They range in horsepower from 100 to 400 and are 460 volt.
ESR has quick access to Lincoln Quarry Duty motors from their warehouse located just 20 minutes away.
Specifications
- Phase: Three Phase
- Horsepower: 2 - 600
- Voltage: 230/460, 460, 575
- Enclosure: TEFC
- Material: Rolled Steel, Cast Iron
- Efficiency: High Efficient, Premium Efficient
- Cycle: 60Hz
Applications
- Ball & Rolling Mills
- Centrifuges
- Chippers
- Cone Crushers
- Conveyors
- Debarkers
- Grinding Mills
- Hammer Mills
- Jaw Crushers