... using different mould. Brief intruduction :QTJ4-25 block making machine is a kind of automatic product ,adopts flat vibration ,mould vibration ,and ... Time25 secondsVibrating Frequency2800~4500 r/minEqupped Power21 KWPallet Size850×450×40 mmMolding blocks4 pcs/pallet (390×190×190 mm)24 ... , squares, gardens, landscaping, city constructions, etc. QTJ4-25 Full-automatic concrete block making machine