English
The ZLYJ series reducers are high-precision, hardened gear reducers designed specifically for single-screw plastic and rubber extruders. Made of high-strength alloy steel, they ensure high load capacity, smooth transmission, low noise, and high efficiency. Widely used in the plastic extrusion (film, pipe, profile) and rubber processing (tires, hoses) industries, they are the preferred choice for extruder gearboxes. They meet GB10095-88 grade 6 precision and have a tooth surface hardness of HRC54-62, perfectly handling high axial loads.
| Item | Parameters |
| Maximum speed of the reducer input shaft | ≤1500r/minzl |
| Gear Speed | ≤20m/s |
| Operating Temperature | -40~+50℃ |
The ZLYJ Plastic And Rubber Special Reducer compact structure and high load capacity, effectively withstanding high axial loads.
Smooth and stable transmission, and the precision helical gear design ensures low vibration and consistent operation.
Transmission efficiency exceeds 95%, significantly reducing energy consumption.
Noise levels are as low as 75dB, enhancing working comfort.
High reliability, with a service life of 12,000–25,000 hours, requires minimal maintenance.
Flexible and versatile, it supports bidirectional rotation and operates in temperatures ranging from -40°C to 45°C.
1. What is the ZLYJ Plastic and Rubber Special Reducer used for?
The ZLYJ series is a specialized gearbox for single-screw extruders in plastic and rubber processing. It handles high torque and axial thrust while providing stable transmission for applications like EPS, PE, PVC, and other extrusion machines.
2. What are the key features and benefits of the ZLYJ reducer?
Compact structure: Small size with high carrying capacity.
High efficiency: Gear transmission efficiency exceeds 95%, with low noise and smooth operation.
Durability: Gears made from high-strength alloy steel, carburized, quenched, and ground (hardness HRC54-62).
Thrust handling: Equipped with a large-scale thrust bearing at the hollow output shaft.
Reliability: Theoretical bearing life of 12,000–25,000 hours under standard loads.
3. What models and sizes are available in the ZLYJ series?
Common models include: ZLYJ112, ZLYJ133, ZLYJ146, ZLYJ173, ZLYJ180, ZLYJ200, ZLYJ225, ZLYJ250, ZLYJ280, ZLYJ315, ZLYJ330, ZLYJ375, ZLYJ395, ZLYJ420, ZLYJ450, ZLYJ560, and ZLYJ630. Selection depends on input power (e.g., 5.5–350 kW), output speed (30–188 r/min), and center distance.
4. What are the technical specifications and operating parameters?
Transmission ratio (i): 6.3–20.4 (e.g., 8.0, 10.0, 12.5, 14.0, 16.0, 18.0, 20.0).
Input speed: High-speed shaft up to 1,500 r/min.
Gear drive velocity: Less than 20 m/s.
Output torque: 800–1,003,694 N·m.
Power rating: 5.5–350 kW.
Mounting: Horizontal (foot-mounted) or vertical (flange-mounted).
5. What is the recommended lubrication and cooling method?
Use industrial gear oil (e.g., medium-load or heavy-load types) per JB/T8853-2001. Some models include a one-way oil pump on the high-speed shaft. Cooling is essential; check thermal power ratings and ensure oil is preheated above 0°C if ambient temperature is below 0°C. Regular oil changes are advised based on operating hours.
6. What are the environmental and operational limits?
Temperature range: -40°C to +45°C.
Direction of rotation: Bidirectional (positive/negative), but default for one-way oil pump models is clockwise (facing output shaft).
Precautions: Preheat oil if below 0°C; avoid exceeding rated speeds or loads to prevent overheating.
