
Sg High Quality Zlyj Single Screw Gearbox for Plastic Extrusion (ZLYJ560). High Precision Gears: Gear accuracy is 6 with hardness HRC 58-62 for low noise operation. Durable Material Construction: Gears made of 20CrMnTi with carburizing and quenching; case uses HT250. Customizable Screw Barrel Connection: Connection problems can be customized; supports 180 double keyway or square spline. Effective Oil Sealing: Double oil seals on shafts using fluorine rubber prevent oil leaking. ISO 9001 Certified Quality: Company holds ISO 9001:2015 certification and utility model patents. Wide Application Range: Suitable for plastic extrusion, film blowing, and pelletizing machines. Flexible Bearing Options: Adopts domestic top-quality brands or imported brands like NSK based on customer choice. Strong Production Capacity: Annual capacity reaches 50,000 sets with a 50,000m production base.