Horton fan drives
DM Advantage® Two-Speed Fan Drive
DM Advantage two-speed drives alternate between eddy-current and spring-actuated cooling. The eddy current turns the fan slowly when little cooling is needed; the spring locks it to full speed when more is needed.
- 2speeds
- eddy currentlow speed
- fail-safespring engaged
The range
Specifications
Specifications
| Actuation | Eddy current at low speed with spring lock-up |
| Horsepower | Range Diesel engines up to 550HP (410kw) |
| Fan Blade Capacity | Application Specific |
| Air Pressure Requirements | Minimum 90psi (620.5KPa) |
How it works
How Two Speeds Work
Low Speed
Magnets set up eddy currents that drag the fan round at a reduced speed – lower noise, more horsepower for auxiliaries, and less radiator abrasion from dust.
Full Speed
When more cooling is needed the spring engages the friction liner and the fan runs at full input speed. It also allows faster warm-ups in cold weather.
Why two-speed
Ideal with Little Ram Air
Quieter
Moderates operating noise.
More Power
Increases available horsepower and conserves fuel.
Long Life
Premium sheave bearing and long-wearing friction liner.
Simple
Fail-safe design and lower parts count.
Literature & related
More Information
- DM Advantage two-speed
Product guide · PDF, 5.9 MB - DMA two-speed generic view
Parts · PDF, 5.9 MB - DM Advantage Two-Speed generic view
Parts list · PDF, 194 KB
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