Rockford® introduced its first on-highway Class 8 truck fan clutch over 40 years ago and has continued to apply and refine the technology for off-highway applications ever since.
Today, our line of high-performance fan clutches continues to set the standard for reduction of fuel consumption and fan-generated noise, prolonged engine life, fast warm up and improved productivity.
Rockford’s unique variable speed technology enables our fan clutches to respond to changes in the engine cooling demands by varying the fan speed. This is accomplished by using a stand-alone control system or through today’s high-tech engines’ ECMs. This allows the fan to slow down or speed up as necessary, utilizing less working horsepower from the engine and lowering fuel consumption.
Our patented fan clutch is offered in various sizes. Each fan clutch series number relates to its relative size within the product family. We currently offer fan clutches for engines from 400 to 4,000 horsepower which use cooling fans from 10 to 300 horsepower.
Benefits:
- Increases fuel economy and usable horsepower
- Reduces decibel rating for noise regulation
- Reduces radiator sandblasting
- Increases productivity
- Permits programmed fan speed clipping at high engine speeds
- Reduces fan blade erosion
- Eliminates shock load on engine components
- Reduces noise for enhanced operator comfort
- Increases fan belt life
- Speeds up engine warm-up in cold temperatures
The Series 125 is a variable Rockford® fan clutch. It is designed for industrial and off-highway applications. It is used where space limitations are critical and is intended to interface with current or future electronics control technology.
The Series 170 Rockford® fan clutch is designed for medium to lighter duty off-highway and industrial applications. This oil-actuated fan clutch enables vehicle efficiency gains and aids in noise reduction applications.
The Series 200 Rockford® fan clutch is designed for medium duty off-highway applications and industrial applications. This fan clutch enables vehicle efficiency by minimizing parasitic load on the engine and reduced warm up time.
The Series 270 Rockford® fan clutch is designed for heavy-duty off-highway applications. This fan clutch provides efficiency through on demand cooling in large applications. The effects of over cooling are reduced in cold weather applications.
The Series 370 Rockford® fan clutch is designed for the largest applications. This fan clutch was developed to meet the cooling demands of the largest off-highway applications.