The best unburned brick machine in the United States is the Automatic Extrusion Molding Machine. This machine stands out due to its high efficiency, precision, and cost-effectiveness. According to a report by the American Concrete Institute, the Automatic Extrusion Molding Machine can produce up to 10,000 bricks per hour, significantly reducing production time and labor costs compared to traditional methods. Additionally, the machine ensures consistent brick quality, which is crucial for construction projects requiring uniformity in brickwork. The use of advanced technology in the Automatic Extrusion Molding Machine also minimizes waste and environmental impact, making it an environmentally friendly choice for brick manufacturing.