The Gusmer proportioners are hydraulic proportioners designed for medium to high-output spray foam applications. This cost efficient spray foam machine outputs range from 30 lb (13.6 kg) up to 40 lb (18 kg) per minute. The Gusmer machines are a simple, durable and reliable hydraulic spray foam machine designed with reliability and ease of service in mind. Gusmer's point-to-point wired electrical cabinet sits atop Graco's industry-proven hydraulic Reactor 2 chassis, including the Reactor horizontal pump line, fluid heaters, and hydraulic system. The Gusmer proportioner is a machine offering impressive performance at an attractive price.