FER Series Planetary Reducer (FER70/FER90/FER120/FER155/FER205): Heavy-Load Intelligent & Extreme-Condition Transmission Solution
I. Product Overview
Weigao FER Series Planetary Reducers, covering core models from FER70 to FER205, are heavy-duty intelligent transmission devices tailored for industrial scenarios requiring strong load-bearing capacity, real-time condition monitoring, and stable operation in extreme environments. As a high-end heavy-load product in Weigao's planetary transmission lineup, this series addresses the pain points of poor impact resistance, lack of fault pre-warning, and short service life of traditional reducers in metallurgy, mining, and heavy machinery scenarios. Compliant with international heavy-duty transmission standards and certified by ISO 9001 quality management system and IP67 protection level, it integrates reinforced NGW planetary structure, ion-nitrided gear set, and intelligent monitoring module. The product features superior anti-impact performance, real-time fault pre-warning, and wide extreme condition adaptation, capable of stably operating in temperature ranges from -30℃ to +100℃. It is widely applied in steel mill rolling equipment, mine conveyors, port hoists, and construction machinery, providing reliable intelligent power support for global heavy-industry fields.
II. Core Advantages
1. Reinforced NGW Structure with Ion-Nitrided Gear, Superior Load Capacity
Adopting the reinforced NGW planetary gear design integrated with ion nitriding technology, the reducer realizes stable heavy-load transmission through the meshing of integral forged sun gear, 4 planetary gears, and hardened inner gear ring. Gears are made of premium 20CrNi2Mo alloy steel, processed by deep carburizing and quenching, followed by ion nitriding treatment to reach surface hardness 840Hv, forming a tough core and wear-resistant surface structure. The 3D HeliTopo tooth profile correction technology optimizes tooth contact area, reducing meshing impact and noise while enhancing anti-fatigue performance. Equipped with full-needle roller bearings without retainers, the planetary carrier increases contact area to improve torque output, with torsion stiffness ≥14Nm/arcmin and capacity to withstand 280% rated torque impact load. Transmission efficiency reaches 95%-98% with a speed ratio range of 5:1 to 1000:1, fully meeting heavy-load extreme condition requirements.
2. Full Model Coverage (FER70-FER205), Heavy-Load Intelligent Design
The FER series covers five core models: FER70, FER90, FER120, FER155, and FER205, with rated power ranging from 1.5kW to 120kW and rated torque covering 300Nm to 25000Nm, forming a complete heavy-load intelligent product matrix. The housing adopts high-toughness nodular cast iron with integrated reinforcing ribs, optimized through finite element simulation to disperse impact force and avoid deformation. Each model is embedded with a built-in intelligent monitoring module, integrating temperature, vibration, and torque sensors to realize real-time data collection and edge computing. Modular interfaces support flange input, keyway connection, and hollow shaft with locking disk output, enabling seamless matching with heavy-duty motors and realizing predictive maintenance through data feedback.
3. Extreme-Condition Protection, Stable Operation in Harsh Environments
The reducer adopts a multi-layer sealing protection design, including anti-pollution skeleton oil seals and fluorine rubber O-rings, effectively preventing dust, water, and corrosive media from entering. The IP67 protection level ensures stable operation in dusty, humid, and high-temperature industrial sites such as mines and steel mills. The housing surface is treated with multi-layer anti-rust, anti-corrosion, and high-temperature resistant coating, enhancing durability in extreme environments. Equipped with SKF heavy-duty self-aligning roller bearings, the shaft system reduces radial runout and adapts to slight installation deviations, maintaining smooth operation even at high input speeds up to 10000rpm. The service life extends to over 35000 hours under normal heavy-duty working conditions, significantly reducing downtime.
4. Heavy-Load Lubrication System, Low-Maintenance & Durable
The reducer adopts enhanced oil bath lubrication with special extreme pressure gear oil, featuring excellent high-temperature stability and anti-wear performance. The lubrication system is equipped with an oil quality sensor, which monitors oil degradation in real time and sends replacement reminders through the intelligent module. The housing is designed with a shock-resistant oil level gauge and filter-equipped oil drain port, facilitating maintenance in heavy-industry environments. The optimized lubrication circuit ensures uniform oil supply to all meshing parts, forming a stable oil film even under heavy impact load to reduce wear. The recommended oil change cycle is extended to 15000 hours, reducing maintenance frequency and operational costs for heavy-industry production.
III. Typical Application Fields
- Steel Mill Equipment: Rolling mill auxiliary transmissions, steel billet conveying mechanisms, withstanding high temperature and impact load (FER120-FER205 for large equipment, FER70-FER90 for medium-load auxiliary devices)
- Mine Machinery: Mine scraper conveyors, crusher driving systems, intelligent monitoring preventing sudden failure in dusty environments
- Port Hoists: Container hoists, gantry crane transmissions, high torque capacity ensuring stable load lifting and positioning
- Construction Machinery: Concrete mixing equipment, small excavator auxiliary transmissions, extreme-condition protection adapting to harsh construction sites
- Metallurgy Equipment: Blast furnace feeding mechanisms, continuous casting machine transmissions, ion-nitrided gears enhancing wear resistance
IV. Key Technical Parameters
| Model Specification | FER70, FER90, FER120, FER155, FER205 |
| Power Range | 1.5kW - 120kW |
| Transmission Ratio | 5:1 - 1000:1 (single/multi-stage optional), impact load resistance ≥280% rated torque, torsion stiffness ≥14Nm/arcmin |
| Operating Noise | ≤60dB (1m distance, full load) |
| Operating Temperature | -30℃ - +100℃ |
| Mounting Type | Parallel shaft layout, flange/keyway input, solid/hollow shaft output, nodular cast iron housing with intelligent monitoring module |
V. Installation & Maintenance
Select models based on rated torque, impact load grade, and working environment. During installation, use high-strength anti-loosening bolts for fixation, ensure coaxiality error ≤0.03mm, and connect the intelligent module to the control system for real-time monitoring. Adopt 320# extreme pressure industrial gear oil, and replace it according to the reminder from the oil quality sensor or every 15000 hours. Regularly inspect the sealing performance and sensor connection, and clean the housing surface to ensure heat dissipation. Stop immediately for inspection if the intelligent module sends fault warnings, and perform maintenance by professional heavy-duty equipment technicians.
Weigao FER Series Planetary Reducers (FER70-FER205) adhere to the design philosophy of "heavy-load reliability, intelligent pre-warning, and extreme adaptation", focusing on the core needs of heavy-industry extreme working conditions. With advantages of ion-nitrided gear reinforcement, real-time intelligent monitoring, and multi-layer protection design, it breaks through the limitations of traditional reducers in heavy-load and harsh environment applications. The product provides reliable intelligent transmission solutions for steel, mining, and port industries, 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-industry intelligent transmission field.
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