The second generation of the Robinson electrically heated centrifuge that operates from the vehicle's 12-volt system with a 4-place head. ¬† Centrifuge features include a circular design offering a high-efficiency unit that meets or exceeds the RCF requirements of API and ASTM. Comes with rheostat control with an "off" position for a slow, smooth start and speed control. Features a top-entry motor removal for replacement without removing the centrifuge from its mountings, and a motor mount plate with a ball bearing to provide stabilizing support for the motor shaft. The mounting feet are one inch thick to reduce casting failures. The lid is spring supported to keep it open. Designed with a hole in the center so that the centrifuge RPM's can be checked with a hand held tachometer with the centrifuge lid closed.A pre-heater section is located in the front of the centrifuge for easy access to the operator. Flip-up pre-heater covers incuded, with positive mechanical tension to keep the covers closed. Easy-to-grasp design for easy opening. Simplified method of testing the electrical components. Three independent electrical circuit design. Space-saver design because a separate heater is not required. A self-reset circuit breaker near the vehicle's battery protects the centrifuge's circuit, as well as the vehicle. When the vehicle is not running, an external contactor, wired to the ignition prevents the heaters from drawing energy from the battery. Dimensions: 23 1/2"L¬†x 20"W x 11 1/2"H. Shipping weight: 60 lbs.