PLC intelligent control. Man-machine interface, control system equipped with complete logic control, production program, malfunction diagnosis system and remote control function. So it doesn't need a professional person but only need a simple training to the operator. Product scope: It produces various bricks/blocks including color-face bricks (layered material feeding), through-body tiles, dock linkage blocks, road curb bricks, solid bricks, hydraulic blocks hollow blocks, perforated bricks, and standard bricks etc. Optional configuration: 1. Lift-slab Elevating Conveyor (block stacking machine): According to the different type of bricks, the finished products will be moved from the discharge transmitter and pilled up automatically 3 to 8 layers by the elevating conveyor, and carried to the maintaining place by the fork lifter truck. It could reduce labor and ground. 2. Color face material feeder (layered material feeding) Equipped with color face material feeding device, it could make various color face bricks, through-body Environmental protection bricks, road curb rocks, hydraulic blocks and sod bricks and so on. QT4-18A block forming machine is completely controlled by PLC system. By operating its computer interace, the random signal analysis, fault diagnosis and parameter setting-up of all kinds of materials can be achieved, easily. The material stock hopper and the material feeding hopper are separated, to each other, for the purpose of quantitative feed of materials, which can effectively control the advance liquidation of some concrete and reduce the feeding time. Its unique material-feeding device can quickly and evenly discharge the materials into the moulding box so that the weight error in finished products can be reduced to the minimum. For its frame structure, super-strong shaped steel bars are used; For its electronic and hydraulic systems, most the important elements are imported. So, all of these have ensured the stability and reliability of the machine in long term of operation. This machine has good applicability, it not only can be used for producing concrete blocks of high strength, but also for pulverized coal ash bricks. Cinder bricks, mine slag blocks, and so on. Only by changing different moulds and dies, the hollow blocks and solid blocks of different specifications can be manufactured.