... bricks, dock bricks, grass-planting bricks, etc2:By low frequency material feeding, high frequency vibrating, and pressing and vibrating both by table and ... wintin 2 or 3 seconds, in order to obtain high density and high strength3:For all the production procedure, the PLC intelligent ... /block Machine Model QT6-15/QT8-15/QT10-15 Vibration Frequency (times/min) 4350/4350/4350 Molding Cycle(s) 15-20 ...