The QM4-40 block building machine is one of the first models developed by our company. QM4-40 small block forming machine adopts mechanical drive, manual operation of the mixture into the mold box vibration molding. Its products have smooth appearance, clear edges and corners, product weight error 3%, strength up to 10.5 (MPa), error 10%, geometry R inch < 11.5mm. The machine is widely used, not only can produce concrete blocks, but also can use coal pulverized stone, fly ash, slag, clay ceramics, gypsum and other industrial waste slag to produce various types of load-bearing and non-load-bearing blocks.