FE series planetary reducer(FE70,FE90,FE120,FE155,FE205,FE235)

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The FE series planetary reducers (FE70, FE90, FE120, FE155, FE205, FE235) by Weigao are high-performance gear reduction units designed for precision and durability in industrial applications. These reducers feature a compact, modular design with a planetary gear mechanism that ensures high torque transmission, smooth operation, and excellent load-sharing capabilities. The series offers a wide range of reduction ratios, enabling precise speed control to meet diverse operational requirements.

Constructed from high-strength alloy steel and precision-machined components, the FE series delivers exceptional reliability and long service life, even under heavy-duty conditions. With high transmission efficiency (typically exceeding 92%), they minimize energy loss and enhance overall system performance. These reducers are widely used in robotics, CNC machinery, conveyor systems, and other applications requiring precise motion control. Additionally, the FE series supports multiple mounting options and is compatible with mainstream servo motors, facilitating easy integration into existing systems while ensuring optimal performance and stability.

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FAB series

Description

FE Series Planetary Reducer (FE70/FE90/FE120/FE155/FE205/FE235): Lightweight High-Rigidity & Maintenance-Free Transmission Solution

I. Product Overview

Weigao FE Series Planetary Reducers, covering core models from FE70 to FE235, are high-performance servo-adaptive transmission devices tailored for industrial automation scenarios requiring lightweight design, high rigidity, and long-term maintenance-free operation. As a cost-effective premium product in Weigao's planetary transmission lineup, this series addresses the pain points of heavy weight, frequent maintenance, and poor servo responsiveness of traditional reducers in high-frequency start-stop and mobile equipment scenarios. Compliant with international servo transmission standards and certified by ISO 9001 quality management system and IP65 protection level, it integrates optimized NGW planetary structure, high-pressure die-cast aluminum housing, and full-sealed lubrication design. The product features lightweight body, excellent servo rigidity, lifelong maintenance-free operation, and stable transmission, capable of stably operating in temperature ranges from -20℃ to +85℃. It is widely applied in industrial robots, automated guided vehicles (AGVs), packaging machinery, and precision conveyors, providing efficient and reliable power support for global industrial automation fields.

II. Core Advantages

1. Optimized NGW Structure, High Rigidity & Servo Responsiveness

Adopting the optimized NGW planetary gear design for high-speed servo matching, the reducer realizes precise power transmission through the meshing of integral forged sun gear, 3-4 planetary gears, and hardened inner gear ring. Gears are made of high-quality 20CrMnTi alloy steel, processed by deep carburizing and quenching, followed by precision grinding and tooth profile micro-modification, with tooth surface hardness reaching HRC 60-63 and roughness ≤Ra 0.05μm. The integrated planetary carrier with large-span bearing configuration enhances torsion stiffness to ≥9Nm/arcmin, ensuring fast servo response without lag during high-frequency start-stop. Transmission efficiency reaches 96%-98% with a single-stage speed ratio range of 3:1 to 64:1, and multi-stage combination extendable to 1000:1, fully meeting the precision control requirements of servo-driven automation equipment.

2. Full Model Coverage (FE70-FE235), Lightweight Aluminum Housing Design

The FE series covers six core models: FE70, FE90, FE120, FE155, FE205, and FE235, with rated power ranging from 0.7kW to 110kW and rated torque covering 120Nm to 22000Nm, forming a complete lightweight servo transmission product matrix. The housing adopts high-pressure die-cast aluminum alloy for all models, treated with black anodizing and electrolytic nickel plating, which reduces weight by 30% compared with cast iron housings while enhancing corrosion resistance and heat dissipation. The compact integrated design optimizes internal structure layout, making the volume 25% smaller than traditional reducers with the same load capacity, adapting to limited installation space of mobile and compact equipment. Modular interfaces support servo flange input and solid/hollow shaft output, enabling seamless matching with mainstream servo motors from Siemens, Mitsubishi, and Panasonic.

3. Low-Noise Optimization, Stable Operation in High-Frequency Scenarios

The reducer integrates multiple low-noise designs, including spiral tooth profile correction, preloaded needle bearing configuration, and damping structure inside the housing. The optimized gear meshing angle reduces impact and friction during high-speed operation, with full-load noise ≤58dB at 1m distance, meeting the silent requirements of workshop and clean room environments. The IP65 protection level with enhanced sealing design effectively prevents dust and water spray from entering, ensuring stable operation in harsh workshop conditions. Equipped with high-precision angular contact ball bearings, the shaft system reduces radial runout to ≤0.015mm, maintaining smooth operation even at high input speeds up to 13000rpm, and extending service life to over 30000 hours under normal working conditions.

4. Full-Sealed Lubrication System, Lifelong Maintenance-Free

The reducer adopts high-performance synthetic grease lubrication for all models, factory-filled with lifelong maintenance-free lubricant that features excellent high and low temperature stability. The grease forms a stable oil film on gear surfaces even in extreme temperature and speed conditions, effectively reducing wear and ensuring long-term reliable operation. The fully sealed structure with fluorine rubber O-rings and reinforced skeleton oil seals completely prevents lubricant leakage, avoiding secondary pollution to equipment and workpieces. The housing is designed without external oil filling ports, realizing true maintenance-free operation and significantly reducing downtime and operational costs for automated production lines.

III. Typical Application Fields

Industrial Robots: Small to medium-duty articulated robot joints, lightweight design reducing arm load and improving flexibility (FE70-FE120 for small robots, FE155-FE235 for medium-load robots)
Automated Guided Vehicles (AGVs): AGV and AMR driving mechanisms, lightweight body saving energy and extending battery life
Packaging Machinery: High-speed cartoning machines, labeling equipment, high rigidity ensuring precise positioning and stable operation
Precision Conveyors: Electronic component conveyor lines, food packaging conveyors, maintenance-free design reducing production interruption
Automation Equipment: Servo feed mechanisms, automated assembly lines, high servo responsiveness adapting to high-frequency start-stop

IV. Key Technical Parameters

Model Specification	FE70, FE90, FE120, FE155, FE205, FE235
Power Range	0.7kW - 110kW
Transmission Ratio	3:1 - 1000:1 (single/multi-stage optional), single-stage back gap ≤1 arcmin, torsion stiffness ≥9Nm/arcmin
Operating Noise	≤58dB (1m distance, full load)
Operating Temperature	-20℃ - +85℃
Mounting Type	Parallel shaft layout, servo flange input, solid/hollow shaft output, die-cast aluminum housing with anti-corrosion plating

V. Installation & Maintenance

Select models based on servo motor parameters, load capacity, and installation space. During installation, ensure coaxiality error ≤0.02mm and use anti-loosening bolts for fixation to avoid vibration impact. The reducer is lifelong maintenance-free; do not disassemble the sealed structure arbitrarily. Clean the housing surface regularly to ensure heat dissipation and check for loose fasteners periodically. Stop immediately for inspection if abnormal noise, vibration, or leakage occurs, and perform maintenance by professional servo equipment technicians.

Weigao FE Series Planetary Reducers (FE70-FE235) adhere to the design philosophy of "lightweight efficiency, rigid precision, and maintenance-free reliability", focusing on the core needs of servo-driven industrial automation scenarios. With advantages of aluminum alloy lightweight body, high servo rigidity, and lifelong maintenance-free operation, it breaks through the limitations of traditional reducers in mobile and high-frequency operation applications. The product provides cost-effective and reliable transmission solutions for robots, AGVs, and packaging machinery, supported by complete standardized models and professional after-sales services. Compliant with international servo transmission standards, it is committed to becoming a trusted partner in the global industrial automation transmission field.

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