ZLYJ Series Single-Screw Extruder Dedicated Gearbox
This product is a high-performance gear transmission device specifically designed for single-screw extruders used in plastics and rubber processing. Its core mission is to efficiently and reliably convert the high-speed rotation of the prime mover into the high-torque, low-speed output required by the extruder screw, serving as the core power component that ensures the continuous and stable operation of the extrusion system.
Gears are manufactured from high-strength alloy steel and undergo carburizing, quenching, and high-precision grinding processes.
Gear accuracy reaches Grade 6 (GB10095), with a tooth surface hardness of HRC58-62. This ensures extremely high load capacity, wear resistance, and impact resistance, guaranteeing smooth transmission, low noise, and long service life.
Heavy-Duty Axial Thrust Bearing Design
Heavy-Duty Axial Thrust Bearing DesignA large-size thrust bearing is integrated at the front end of the hollow output shaft, specifically designed to withstand the significant axial thrust generated during extruder screw operation. This ensures the axial stability and reliability of the transmission system under heavy loads.
Robust Construction and Applicability
The designed input shaft speed is not higher than 1500 RPM. If indirect transmission via pulleys, sprockets, etc., is used, attention must be paid to potential changes in speed, torque, and additional radial loads. Please consult us during the selection stage.
The operating ambient temperature range is wide, suitable for -40°C to 50°C. For startup in low-temperature environments, it is recommended to preheat the lubricating oil or use low-temperature lubricants.
The gearbox can operate in both forward and reverse directions. Note: When an end-mounted lubrication pump is configured for forced lubrication, the default rotation direction is clockwise when facing the output shaft (thrust bearing end), which corresponds to a right-handed screw configuration. Please specify any different requirements when placing an order.
Core Value and Application
This gearbox is optimized for the demanding 24/7 continuous, high-load operating conditions typical of extruders. Its value lies in:
Specifications and Models
Model
Model
Model
ZLYJ112
ZLYJ173
ZLYJ225
ZLYJ133
ZLYJ180
ZLYJ250
ZLYJ146
ZLYJ200
ZLYJ280
ZLYJ315
ZLYJ395
ZLYJ500
ZLYJ330
ZLYJ420
ZLYJ560
ZLYJ375
ZLYJ450
ZLYJ630
Core Value and Application
Power Core:
Provides stable and reliable high-torque power for material plasticization.
Foundation of Stability:
High rigidity and precision transmission ensure stable extrusion processes and product consistency.
Longevity and Durability:
Excellent materials and processes ensure long-term operation in harsh environments, reducing maintenance costs.
Mingxin Zhi Machinery, established in 2006, has become the leading enterprise in China's XPS extrusion machine industry. As one of the earliest pioneers in the XPS extrusion machine industry in China, we have consistently adhered to the business philosophy of "craftsmanship, innovation, and integrit Read More
At Zhangjiagang Mingxin Zhi Machinery Co., Ltd., we offer more than just machinery. we provide solutions. Our expert team works closely with customers to understand their unique needs and challenges. Whether it's the icy landscapes of Moscow, the scorching heat of Cairo, the war-torn regions needin Read More
Mingxin Zhi boasts an exceptional R&D and production team. Looking back at the history of our production line innovations reflects the advancements in China's polystyrene foam extrusion technology. Our products are renowned for their efficiency and reliability, offering unparalleled precision in the Read More
Frequently Asked Questions (FAQ)
Q What is the maximum output of your production line?
A The maximum output can reach 3,000 kg/h. Actual output may vary based on specific configuration and process requirements.
Q Which blowing agents are supported?
A We support a wide range of blowing agents, including CO₂, ethanol, butane, DME, HFC, LPG, HFO, pentane, freon, etc. For the Russian market, we also provide solutions compatible with isobutane blends, with butane mixtures being generally recommended.
Q What is the density range of the products?
A The typical density range is 24–50 kg/m³. Under specific process conditions, ultra-low densities of 21–22 kg/m³ can be achieved.
Q What is the maximum compressive strength?
A The maximum compressive strength exceeds 1,200 kPa, meeting requirements for high-performance structural applications.
Q What is the available thickness range for XPS boards?
A The thickness ranges from 10–200 mm, and custom sizes are available upon request.
Q What is the width range of the XPS foam boards?
A The standard width is 600–1,200 mm. Non-standard widths can also be customized.
