ZPLX Series Planetary Reducer: Hard Tooth Surface & Shaft-Mounted Direct-Drive Solution
I. Product Overview
Weigao ZPLX Series Planetary Reducers, covering core models from ZPLX60 to ZPLX220, are heavy-duty integrated transmission devices combining precision hard tooth surface planetary structure and shaft-mounted direct-drive technology. Tailored for industrial scenarios requiring compact installation, large transmission ratio, and continuous heavy-load operation, this series addresses the pain points of complex base installation, low torque density, and poor impact resistance of traditional flange-mounted reducers in conveyor systems, mining machinery, and metallurgy equipment. Compliant with ISO 6336 international gear standards and certified by ISO 9001 quality management system and IP66 protection level, it integrates hardened planetary gear set, hollow shaft connection structure, and high-rigidity cast iron housing. The product features shaft-mounted direct-drive design, high torque density, wide speed ratio coverage, and strong overload capacity, capable of stably operating in temperature ranges from -25℃ to +100℃. It is widely applied in belt conveyors, scraper conveyors, metallurgy roller tables, and heavy-duty transmission lines, providing efficient and reliable power support for global heavy-industry fields.
II. Core Advantages
1. Hard Tooth Surface Planetary Structure, High Torque Density
Adopting optimized hard tooth surface planetary gear design, the ZPLX series realizes efficient power transmission through multi-tooth meshing of integral forged sun gear, planetary gears, and inner gear ring. Gears are made of premium 20CrMnTi alloy steel, processed by deep carburizing and quenching, followed by precision grinding to reach ISO 6-level accuracy, with tooth surface hardness up to HRC 60-63 and roughness ≤Ra 0.04μm. The spiral tooth profile modification technology increases meshing contact area by 20% compared with straight teeth, reducing impact noise and enhancing anti-fatigue performance. Equipped with full-needle roller bearings, the planetary carrier optimizes force distribution, achieving torque density up to 18Nm/cm³, 30% higher than ordinary planetary reducers. Single-stage transmission efficiency reaches 96%-98%, with speed ratio ranging from 3:1 to 100:1, and multi-stage combination extendable to 5000:1, fully meeting large speed ratio heavy-load requirements.
2. Shaft-Mounted Direct-Drive Design, Compact Installation
The ZPLX series adopts shaft-mounted hollow shaft design, enabling direct套装 on the working machine main shaft without additional installation base, reducing radial installation space by 40% compared with traditional flange-mounted models. Core models ZPLX60-ZPLX220 form a complete product matrix, with rated power ranging from 1.1kW to 160kW and rated torque covering 500Nm to 35000Nm, adapting to light-to-super heavy-load scenarios. The hollow shaft is equipped with a shrink disk connection structure, ensuring tight fit with the main shaft and eliminating relative sliding during high-torque operation. The housing adopts integral cast iron with reinforced ribs, optimized by finite element simulation to disperse load pressure, resisting 2.5 times rated torque impact load. Equipped with 360° rotatable torque arm, it supports horizontal, inclined, and vertical installation, fully adapting to complex spatial layout of industrial equipment.
3. Enhanced Sealing Protection, Harsh Environment Adaptation
Integrating multi-layer enhanced sealing design, the ZPLX series ensures stable operation in dusty, humid, and oily industrial environments. The input and output ends adopt fluorine rubber double-lip oil seals combined with labyrinth sealing structure, effectively preventing lubricant leakage and external impurity intrusion, meeting IP66 protection level requirements. The housing surface undergoes electrophoretic anti-corrosion treatment, with corrosion resistance grade reaching C4 level, adapting to coastal and metallurgical corrosive environments. Equipped with integrated cooling fins, the heat dissipation efficiency is enhanced by 25%, avoiding overheating during continuous heavy-load operation. The operating noise is controlled within ≤58dB at 1m distance, and the high-precision bearing configuration reduces radial runout to ≤0.02mm, ensuring smooth operation with service life extended to over 30000 hours.
4. Extreme Pressure Lubrication, Low Maintenance Cost
The optimized lubrication system adopts high-grade extreme pressure industrial gear oil (ISO VG 220), featuring excellent anti-wear, anti-oxidation, and high-temperature stability. The oil bath lubrication mode with forced circulation circuit ensures uniform oil supply to all meshing parts, forming a stable oil film even under heavy impact load. The housing is equipped with a visual oil level window, a filter-equipped oil drain port, and a pressure relief valve, facilitating daily inspection and oil change. The recommended oil change cycle is extended to 12000 hours under continuous operation, significantly reducing maintenance frequency and downtime. The modular design of core components allows quick disassembly and replacement of gears and bearings, with standardized accessories lowering maintenance costs for industrial production lines.
III. Typical Application Fields
- Conveyor Systems: Belt conveyors, scraper conveyors in mines and logistics, shaft-mounted design simplifying installation and saving space (ZPLX60-ZPLX120 for light-medium load, ZPLX142-ZPLX220 for heavy load)
- Metallurgy Equipment: Steel mill roller tables, billet conveying mechanisms, high torque density withstanding continuous heavy-load operation
- Mining Machinery: Mine crusher auxiliary transmissions, ore conveying lines, strong impact resistance adapting to harsh mining environments
- Heavy-Duty Production Lines: Automobile part stamping lines, large-scale mixing equipment, wide speed ratio adapting to multi-speed operation needs
- Port Machinery: Container conveyor auxiliary devices, gantry crane transmission mechanisms, IP66 protection adapting to outdoor humid environments
IV. Key Technical Parameters
| Model Specification | ZPLX60, ZPLX90, ZPLX120, ZPLX142, ZPLX180, ZPLX220 |
| Power Range | 1.1kW - 160kW (Supporting multi-unit combination for super heavy-load scenarios) |
| Transmission Ratio | 3:1 - 5000:1 (single/multi-stage optional), Rated Torque: 500Nm - 35000Nm, Transmission Efficiency: 96%-98% |
| Operating Noise | ≤58dB (1m distance, full load) |
| Operating Temperature | -25℃ - +100℃ |
| Mounting Type | Shaft-mounted hollow shaft design, shrink disk connection, cast iron housing, IP66 protection & extreme pressure lubrication |
V. Installation & Maintenance
Select models based on rated torque, transmission ratio, and main shaft diameter. During installation, ensure hollow shaft and main shaft fit gap ≤0.03mm, fasten the shrink disk with torque wrench as specified, and adjust the torque arm to balance reaction torque. Adopt ISO VG 220 extreme pressure gear oil, replace it every 12000 hours, and clean the oil filter during oil change. Regularly inspect sealing performance, gear meshing status, and torque arm tightness. Stop immediately for inspection if abnormal noise or oil leakage occurs, and perform maintenance by professional heavy-duty equipment technicians.
Weigao ZPLX Series Planetary Reducers adhere to the design philosophy of "compact efficiency, heavy-load reliability, and easy adaptation", focusing on the core needs of industrial heavy-duty transmission scenarios. With advantages of hard tooth surface planetary structure, shaft-mounted direct-drive design, and enhanced environmental protection, it breaks through the limitations of traditional reducers in installation complexity and load capacity. The product provides high-quality transmission solutions for conveyor, metallurgy, and mining industries, supported by complete standardized models and professional after-sales services. Compliant with international heavy-duty transmission standards, it is committed to becoming a trusted partner in the global industrial heavy-duty transmission field.
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