Sunkist's SK860 Heavy Duty Nutrition Center has an exclusive "dual stage" masticating extraction method. It has a low rotation speed of 80 RPM's and continuous juicing with automatic pulp ejection. High juice yield with very dry pulp and with less foaming than other double gear juicers. This unit is engineered for quiet operation and long life and with heavy duty construction. The SK860 has an extremely durable Ultem Auger. Using a low speed of 80 RPM's results in minimal heat build-up and oxidation promoting healthy enzymes and longer lasting juices. They're designed and engineered for health-conscious individuals who want greater variety in their daily fruit and vegetable juicing routine by having the ability to also juice wheatgrass and leafy greens. Not just for juicing, they turn nuts into nut butter, extrude pasta, grind coffee and spices, mince herbs and garlic, make baby food, and whip up soy milk in a flash. They don't clog, foam or build up hear, for the most nutritious drinks and snacks you'll make for your family.