The Walker lightweight centrifuge line is housed in a fabricated sheet metal housing that provides durability and heat holding capacity with lighter weight. Saves 30 to 40 pounds compared to similar versions. All major repairs can be done to this unit without taking it out of the vehicle. The motor comes out through the top of its housing. The electrical components are in the box on the front of the machine and the entire box can be replaced without taking the unit out of service. The unit is rugged, fully insulated and operates from the vehicle's 12 Volt DC Electrical System.