utomatic Brick Making Machine Double Stave Vacuum Extruder JKY70 for Brick Factory JKY75 Automatic Brick Making Machine Double Stave Vacuum Extruder for Brick Factory Automatic Clay Brick Making Machine Double Stave Vacuum Extruder JKY70 for Brick Plant This machine can be also called Brick Extruder, Brick Extruding Machine, Clay Brick Maker, etc, whose function is to make green adobes, wet bricks under high pressure and vacuum condition. JKY75 Double Stage Vacuum Extruder, is the largest model in China, it comes with 75cm diameter of the mud chamber. The production capcaity can be 50000 bricks per hour, it can extrude out the mud column at the required size at vacuum condition. JKY75 Double Stage Vacuum Extruder is welcomed by the large capacity production line of brick manufacturers.