... upper and lower pressure and strong rammer,especially QTJ5-15 Brick Making Machine is professional to produce standard bricks ,its strength is higher ... .The blocks can be widely used:slag,sand,gravel,aluminum red slag,electrolytic copper residue, coal refuses,construction waste,flyash, cinder ... power380V 50HZ6500kg6400×2200×2850mm(length×width×height) QTJ5-15 Automatic Brick Making Machine