ZPLF Series Planetary Reducer: Hypoid Planetary & Integrated Cooling Solution
I. Product Overview
Weigao ZPLF Series Planetary Reducers, covering models ZPLF60, ZPLF80, ZPLF90, ZPLF120, and ZPLF160, are high-efficiency precision transmission devices integrating hypoid planetary gear trains and integrated cooling oil circuit technology. Tailored for medium-heavy load precision scenarios such as new energy vehicle test platforms, high-speed automation lines, and precision rolling equipment, this series overcomes the shortcomings of traditional reducers such as low transmission efficiency, poor heat dissipation, and single sealing configuration in high-speed heavy-load fields. Compliant with ISO 6336 gear standards and GB/T 16474-2025 energy efficiency standards, with IP65/IP66 modular protection, it features hypoid precision gear sets, high-strength cast aluminum (small models) and nodular cast iron (large models) housing, and energy-saving lubrication system. Boasting advantages of hypoid high-efficiency transmission, integrated heat dissipation, modular sealing adaptation, and stable precision retention, it operates stably at -30℃ to +105℃, serving as a core component for high-energy-efficiency industrial equipment worldwide.
II. Core Advantages
1. Hypoid Planetary Gear Train, High Efficiency & Load Capacity
Adopting innovative hypoid planetary gear structure, the ZPLF series combines the advantages of hypoid gear high contact ratio and planetary gear load sharing, achieving superior transmission performance. Gears are crafted from 17CrNiMo6 alloy steel, undergoing deep carburizing, precision grinding, and hypoid tooth profile modification to ISO 5-level accuracy, with tooth surface hardness up to HRC 60-63 and roughness ≤Ra 0.03μm. The hypoid design increases meshing contact area by 35% compared with traditional involute gears, reducing tooth surface pressure and enhancing anti-pitting life by 2.5 times. Detailed precision parameters: tooth profile tolerance (f) ≤0.009mm, cumulative pitch error (F) ≤0.022mm, backlash controlled within ≤3arcmin (large models optional ≤1.5arcmin). Single-stage transmission efficiency hits 97%-99%, torque density reaches 17Nm/cm³, speed ratio 3:1-100:1 (multi-stage extendable to 2800:1), perfectly matching high-speed medium-heavy load precision transmission demands.
2. Integrated Cooling Oil Circuit, Efficient Heat Dissipation
The series features an integrated cooling oil circuit designed with the housing, solving heat accumulation problems in high-speed continuous operation. ZPLF60-ZPLF160 form a graded product matrix: ZPLF60-ZPLF90 (cast aluminum housing) cover 0.75kW-45kW power and 800Nm-5000Nm torque for medium precision load; ZPLF120-ZPLF160 (nodular cast iron housing) cover 55kW-132kW power and 6000Nm-28000Nm torque for heavy-load scenarios. The integrated oil circuit circulates along the housing inner wall and gear meshing area, with built-in oil guide plates enhancing heat exchange efficiency by 35%. Large models are equipped with independent oil coolers, controlling operating temperature rise within 40℃ even under 24-hour full-load operation. Housing rigidity optimized via finite element simulation resists 1.8 times rated load impact, ensuring precision stability under thermal expansion.
3. Enhanced Sealing Protection, Harsh Environment Adaptation
Modular sealing protection design adapts to diverse working environments. ZPLF60-ZPLF90 adopt IP65 protection (triple-lip fluorine rubber oil seal + labyrinth structure) for general precision workshops, with hard anodized anti-corrosion treatment (salt spray resistance ≥1000 hours). ZPLF120-ZPLF160 configure IP66 protection on demand, adding pressure-resistant sealing ring and stainless steel dust cover to resist coolant intrusion and heavy dust, with electrophoretic anti-corrosion treatment (C3 grade). The hypoid gear structure optimizes NVH performance, operating noise ≤54dB (small models) and ≤57dB (large models) at 1m. Low-temperature resistant lubrication matching enables stable operation at -30℃ to +105℃, service life extended to over 42000 hours under normal continuous operation.
4. Energy-Saving Lubrication System, Long Precision Retention
The lubrication system adopts low-viscosity high-efficiency gear oil (ISO VG 150) for energy saving, reducing churning loss by 12% compared with conventional oils. Small models use oil bath lubrication with optimized splash structure, ensuring uniform oil supply; large models adopt forced circulation lubrication with online oil quality sensor for real-time monitoring. The sealed system ensures lubrication stability, with oil change cycle extended to 15000 hours for continuous operation. Modular design allows quick replacement of gear sets and seals, with standardized hypoid gear accessories ensuring consistent meshing precision and efficiency after overhaul. The combination of efficient lubrication and cooling further extends gear service life and precision retention capability.
III. Typical Application Fields
- New Energy Test: Electric vehicle powertrain test platforms, battery module press equipment, high efficiency and precision ensuring test accuracy (ZPLF60-ZPLF90 for light load, ZPLF120-ZPLF160 for heavy load)
- High-Speed Automation: Precision conveyor lines, robotic arm end effectors, low noise and stable transmission matching high-speed operation
- Precision Rolling: Non-ferrous metal rolling mills, thin-sheet processing equipment, hypoid structure ensuring uniform load and surface processing quality
- Packaging Machinery: High-speed printing and packaging lines, integrated cooling avoiding overheating during long-term operation
- Food Processing: Automated production lines, modular sealing adapting to clean workshop requirements and corrosion protection against cleaning agents
IV. Key Technical Parameters
| Model | Cooling Mode | Rated Torque | Backlash | Protection Grade |
|---|
| ZPLF60 | Integrated Oil Bath Splash | 800Nm-1500Nm | ≤3arcmin | IP65 |
| ZPLF80 | Integrated Oil Bath Splash | 1600Nm-3200Nm | ≤3arcmin | IP65 |
| ZPLF90 | Integrated Oil Bath Splash | 3300Nm-5000Nm | ≤3arcmin (Optional ≤1.5arcmin) | IP65 |
| ZPLF120 | Forced Circulation + Oil Cooler | 6000Nm-18000Nm | ≤3arcmin (Optional ≤1.5arcmin) | IP65 (Optional IP66) |
| ZPLF160 | Forced Circulation + Oil Cooler | 19000Nm-28000Nm | ≤3arcmin (Optional ≤1.5arcmin) | IP65 (Optional IP66) |
V. Installation & Maintenance
Select models based on rated torque, cooling demand, and working environment (refer to the specification table). Ensure coaxiality error ≤0.015mm during installation, fasten flange bolts with specified torque (40-70N·m for ZPLF60-ZPLF90, 90-140N·m for ZPLF120-ZPLF160) in diagonal sequence. Use ISO VG 150 high-efficiency gear oil, replace every 15000 hours for continuous operation. Regularly inspect sealing performance and cooling system operation, clean the oil filter every 6 months, and calibrate backlash annually. Avoid overload operation exceeding 1.8 times rated torque, and entrust maintenance to professional technicians.
Weigao ZPLF Series adheres to the philosophy of "high-efficiency energy saving, stable heat dissipation, and precision retention". Its hypoid planetary structure and integrated cooling oil circuit break through traditional reducers' efficiency and heat dissipation limitations, ensuring reliable operation in high-speed medium-heavy load precision scenarios. Backed by strict quality control and professional after-sales service, it provides high-performance solutions for new energy, automation, and precision manufacturing, establishing itself as a trusted global partner in high-efficiency planetary transmission.
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