High-Efficiency Radiator Core Assembly Machine | Versatile Aluminum Core Builder Product Introduction The Radiator Core Assembly Machine , also known as a radiator core builder or core building machine, is designed for efficient assembly of aluminum radiator cores for cars, trucks, and other automotive applications. It can also be used for assembling various heat exchanger cores, including radiators, heater cores, condensers, evaporators, intercoolers, and oil coolers ,