Auto Injection Molding Machine The Haijiang HJF-780 Auto Injection Molding Machine is a state-of-the-art solution engineered for modern manufacturing demands. This automatic injection molding system delivers precision performance for producing high-quality plastic components with exceptional efficiency and reliability. Featuring a versatile screw diameter range of 20-150 mm and adjustable screw speed up to 220 rpm, this machine accommodates various injection volumes and