FGR Series Planetary Reducer (FGR60/FGR80/FGR120/FGR160): Heavy-Load Rigid & Impact-Inertia Resistant Transmission Solution
I. Product Overview
Weigao FGR Series Planetary Reducers, covering core models from FGR60 to FGR160, are heavy-duty rigid transmission devices tailored for industrial scenarios requiring strong load-bearing capacity, impact resistance, and stable inertia control. As a specialized heavy-load product in Weigao's planetary transmission lineup, this series addresses the pain points of insufficient rigidity, poor inertia suppression, and easy structural deformation of traditional reducers in heavy-duty start-stop and load-fluctuation scenarios. Compliant with international heavy-duty planetary gear standards and certified by ISO 9001 quality management system and IP67 protection level, it integrates reinforced NGW-type planetary gear structure, integral forged planetary carrier, and impact-absorbing structural design. The product features exceptional torsion rigidity, strong impact resistance, and reliable inertia control, capable of stably operating in temperature ranges from -30℃ to +90℃. It is widely applied in heavy-duty handling robots, cableway lifting equipment, large-scale sorting machines, and steel mill auxiliary devices, providing reliable heavy-load power support for global industrial fields with harsh load conditions.
II. Core Advantages
1. Reinforced NGW Structure with Forged Carrier, Super High Rigidity
Adopting the reinforced NGW-type planetary gear transmission design integrated with integral forged planetary carrier, the reducer realizes stable heavy-load transmission through the meshing of high-strength sun gear, 4 planetary gears, and hardened inner gear ring. Gears are made of premium 20CrNi2Mo alloy steel, processed by deep carburizing and quenching, with tooth surface hardness reaching HRC 62-65 and roughness ≤Ra 0.06μm, ensuring excellent wear resistance and impact tolerance. The integral forged planetary carrier enhances torsion stiffness to ≥15Nm/arcmin, 50% higher than ordinary models, effectively suppressing structural deformation under heavy load. Transmission efficiency reaches 96%-98% with a ratio range of 3:1 to 100:1, and rated input speed up to 12000rpm, capable of withstanding 220% rated torque impact load, fully meeting heavy-load inertia control requirements.
2. Full Model Coverage (FGR60-FGR160), Heavy-Load Inertia Control Design
The FGR series covers four core models: FGR60, FGR80, FGR120, and FGR160, with rated power ranging from 1.2kW to 90kW and rated torque covering 200Nm to 18000Nm, forming a complete heavy-load product matrix. The housing adopts high-toughness nodular cast iron with integrated reinforcing ribs optimized through finite element simulation, balancing structural rigidity and heat dissipation performance. The compact design makes the volume 20% smaller than traditional heavy-duty reducers with the same load capacity, adapting to limited installation space of heavy machinery. Modular interfaces support flange input, keyway connection, and hollow shaft with locking disk output, enabling seamless matching with heavy-duty motors and equipment, and effectively suppressing inertia impact during rapid start-stop.
3. Impact-Inertia Suppression, Stable Operation Under Fluctuating Load
The reducer integrates multiple impact-inertia suppression designs, including gear tooth profile crown optimization, preloaded bearing configuration, and damping structure in the housing. The optimized gear meshing angle ensures uniform force distribution during load fluctuation, reducing vibration amplitude by 40% compared with ordinary models, with full-load operating noise ≤58dB at 1m distance. The housing surface is treated with multi-layer anti-rust and high-temperature resistant coating, and the IP67 protection level effectively prevents dust, heavy water spray, and temporary immersion, ensuring stable operation in dusty, humid, and high-temperature industrial environments. Equipped with SKF heavy-duty cylindrical roller bearings, the shaft system bears radial force 45% higher than ordinary bearings, extending service life to over 30000 hours under normal heavy-duty working conditions.
4. Heavy-Load Lubrication System, Durable & Low-Maintenance
The reducer adopts enhanced oil bath lubrication for all models, factory-filled with high-viscosity extreme pressure gear oil suitable for heavy-load operation. The lubricating oil has excellent high-temperature stability and wear resistance, forming a stable oil film on gear surfaces even under heavy load, effectively reducing wear caused by impact friction. The housing is equipped with a shock-resistant oil level gauge, sealed oil filling port, and filter-equipped oil drain port, facilitating maintenance in heavy-industry environments. The lubrication system is optimized for long-term continuous operation, with a recommended oil change cycle of 12000 hours under normal working conditions. Sealing parts use fluorine rubber O-rings and reinforced skeleton oil seals, effectively preventing oil leakage even under strong vibration.
III. Typical Application Fields
- Heavy-Load Handling Robots: Palletizing robot arms, heavy-duty transfer robot bases, withstanding load impact and inertia force (FGR60-FGR80 for medium-load robots, FGR120-FGR160 for heavy-load robots)
- Cableway & Lifting Equipment: Mountain cableway driving systems, large hoists, ensuring stable hover and smooth start-stop, suppressing inertia fluctuation
- Large-Scale Sorting Machines: Cross-belt sorting machines, heavy-duty logistics sorters, adapting to high-frequency load changes and impact
- Steel Mill Auxiliary Devices: Steel billet conveying mechanisms, auxiliary hoisting equipment, operating stably in high-temperature and dusty environments
- Construction Machinery: Small construction hoists, concrete mixing equipment auxiliary transmissions, resisting impact from harsh working conditions
IV. Key Technical Parameters
| Model Specification | FGR60, FGR80, FGR120, FGR160 |
| Power Range | 1.2kW - 90kW |
| Transmission Ratio | 3:1 - 100:1 (stepless selection according to model), impact load resistance ≥220% rated torque |
| Operating Noise | ≤58dB (1m distance, full load) |
| Operating Temperature | -30℃ - +90℃ |
| Mounting Type | Flange/keyway input, solid shaft/hollow shaft output, multiple installation orientations supported |
V. Installation & Maintenance
Select models based on rated torque, impact load grade, and working temperature. During installation, use high-strength bolts with anti-loosening washers for fixation, and ensure the coaxiality error ≤0.03mm to avoid additional stress. Adopt 320# extreme pressure industrial gear oil for lubrication, and replace it every 12000 hours of operation or once a year; use low-temperature gear oil for environments below -20℃. Regularly inspect gear meshing state and sealing performance, keep the housing and heat dissipation structure clean. Stop immediately for inspection if abnormal vibration, noise, or oil leakage occurs, and perform maintenance by professional heavy-duty equipment technicians.
Weigao FGR Series Planetary Reducers (FGR60-FGR160) adhere to the design philosophy of "heavy-load priority, rigidity enhancement, and impact resistance", focusing on the core needs of industrial scenarios with harsh load conditions and inertia fluctuation. With advantages of super high torsion rigidity, strong impact-inertia suppression, and wide工况 adaptation, it breaks through the limitations of traditional reducers in heavy-duty start-stop and load-fluctuation applications. The product provides reliable transmission solutions for handling robots, lifting equipment, and steel mill devices, supported by specialized heavy-load models and professional after-sales services. Compliant with international heavy-duty transmission standards, it is committed to becoming a trusted partner in the global heavy-load industrial transmission field.
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