JZK120 Heavy-Duty Double-Stage Vacuum Brick Extruder Unit

INTRODUCTION:                 

Structure and Working Principle

• Double-Stage Structural Design

      Upper Stage (Mixing and Prepressing Section):

      Lower Stage (Extrusion Forming Section):

      A mud pressing plate feeds materials forcibly. The auger gradually increases pressure (up to 4.0 MPa) through a variable-pitch design. After being compressed in the mud

      cylinder, the raw materials are extruded and formed through the die, resulting in mud strips with a hardness of 3.0-5.0 kg/cm².

• Core Systems

        Vacuum System: A water-ring vacuum pump removes more than 90% of the air from the raw materials, reducing bubbles and delamination in green bricks.

        Pneumatic System: A pneumatic clutch controls the start and stop of the upper and lower stages, realizing overload protection and precise speed regulation.

        Wear-Resistant Design: The surface of the auger is spray-welded with wear-resistant alloy (e.g., high-chromium cast iron), with a service life of over 30 million stan         dard bricks—4-7 times longer than that of ordinary augers.

Main Characteristics：

• High output value and low energy consumption, suitable for large-scale and intensive production.
• Integrated machine body design, featuring smooth lines, solid structure and stable performance.
• Equipped with an automatic monitoring and early warning system, facilitating overall system control.
• Suitable for the production of large blocks, wall panels and floor slabs used in prefabricated buildings.