QTJ4-30B Block Forming Machine is a modified model through several times of renovation, for example, changing double shafts into four shafts and being coated with hard cadmium. So, it is good in stability and perfect in wearing capacity. For a larger vibrating box is adopted for it, the blocks produced with vertical vibration are with good compressive stress and high density. At the same time, the working efficiency and duration of the machine are largely increased. It is an ideal model for medium and small sized investors. Additionally, it can be automatic material feeding, automatic block discharging and automatic block loading on cart. For the products, they can be piled up 3-5 layers just after manufacture.