Horton DriveMaster Two-Speed Fan Clutches

Under most operating conditions, the DriveMaster Two-Speed Fan Drive is powered by eddy current. This turns the fan at a low speed, which reduces ON/OFF cycling, operating noise, increases available horsepower for auxiliary systems, and minimises radiator abrasion from dust and debris.

When additional cooling is needed, the DriveMaster Two-Speed spring actuates, and runs the fan at full input speed. By supplying additional engine cooling only when it's needed, the DriveMaster Two-Speed delivers superior horsepower performance. Less noise. More power. Increased fuel efficiency.

Benefits

• Higher torque for larger fans and higher drive ratios
• Up to 50% less noise
• Reduced ON/OFF cycling at idle and/or low speed
• Precise temperature control; ideal for vehicles with little or no ram air
• Superior operating efficiency and performance
• Quicker response to cooling needs
• More available power to haul up steep inclines
• Improved fuel efficiency
• Less wear and maintenance; higher reliability
• Less radiator abrasion from dust and debris
• Faster engine warm-ups in cold weather

Features

• Low speed powered by magnetic eddy current
• Spring actuated when additional cooling is needed

Applications

• On-highway trucks
• Buses
• Crane trucks and other special purpose mobile equipment
• Rear-engine cement mixers, pumps, drill rigs, etc
• Large stationary engines, compressors, generators, etc
• Other on- and off-highway equipment without ram air

DriveMaster two-speed Specifications

• Actuation - Eddy current at low speed with spring lock-up for full input speed
• Horsepower range - Diesel engines up to 550HP (410kw) *
• Fan blade capacity (diameter) - Application Specific
• Air pressure requirements - Minimum 90psi (620.5kPa)