MAC (Mobile Auto Crushers) Corporation of America was founded in 1965 to manufacture auto flattening units and high-density balers to serve the scrap metal recycling industry.

In our continuing efforts to better serve our customers, MAC Corporation acquired the Saturn Shredder line of slow speed rotary shear type shredders in 1980. A year later, the fabrication of Saturn Shredders was incorporated into the existing manufacturing facility of the MAC Corporation.

In 1987, Granutech Environmental Systems developed a state-of-the-art scrap tire reduction system to produce high-quality crumb rubber from steel-belted and bias-ply tires. The system was designed for the express purpose of efficiently granulating tires and separating rubber, steel and fiber. In 1994, Granutech Environmental Systems sold its scrap tire system technology to MAC Corporation of America which was later renamed Granutech-Saturn Systems Corporation.

• Has over 140 years of combined engineering experience. Our engineers create leading-edge technology that sets the industry standards. Our engineers can customize products to fit your company's individual needs.
• Has the ability to provide complete 'turn-key' systems.
• Is centrally located just minutes from the Dallas/Fort Worth International Airport, making it easily accessible from any part of the world. Because we are located near this transportation hub, parts and service can be at your facility in a minimal amount of time.
• Offers replacement parts for a variety of machines including Granutech-Saturn, SSI, Shred Pax, Shred-Tech, American Pulverizer, Eidal, Retech, Vortex, Williams, and others.
• Has designed and installed systems for some of the biggest projects in the industry.