GJ Series Injection Molding Machine for Pipe Fittings

The GJ Series by SOUND Machinery is a fifth-generation injection molding solution specifically designed for the pipe fittings industry. Built to address the unique challenges of PE and PPR pipe component production, these machines offer a combination of large shot weight and small-to-medium clamping force—ensuring minimal material waste and high molding precision.
The GJ Series features an enlarged mold-opening stroke, increased tie-bar spacing, and a reinforced platen design that accommodates large, complex molds. With advanced injection systems using dual-stage extrusion and special screw designs, the series delivers uniform plasticization and reduced reject rates. The servo-hydraulic system dynamically adjusts output based on actual load, enhancing energy efficiency and extending machine lifespan.
For intelligent manufacturing needs, the GJ Series includes Industry 4.0 interfaces, SPC quality tracking, and centralized lubrication systems. With models ranging from 420T to 7000T, SOUND MACHINERY offers scalable solutions that fit your current factory setup while allowing room for growth. Whether for municipal water systems, drainage components, or high-performance fittings, the GJ Series is the benchmark in specialized plastic injection molding for pipes.