QMJ4-40 High Pressure Block Machine is one of the models originally developed by our company. It is competent in quality and has been always sold well. For it, the demoulding method with pulley and sprocket is adopted instead of the domestic traditional demoulding method with Reductor so that it becomes simple in structure and durable in use. By using shock absorbers at many places of the machine, its noise becomes low, vibration damage less and service life of mould longer. With this machine, quick in block forming, high in working pressure, and convenient in block discharging by special forklift, therefore, the working efficiency of workers can be increased, substantially.