QT4-30 small hydraulic brick making machine, using hydraulic transmission, manual operation of the mixture into the mold box vibration molding. The products have beautiful appearance, clear edges and corners, the weight error of the products is 13%, the strength can reach 10.5 (MPa), the error is 10%, the geometric size < 1.5mm. In line with national standards, excellent performance, high efficiency, low energy consumption.