M-Series Helical Gear Reducer (M2/M3/M4/M5): Precision Torque Matching, Empowering Modular Industrial Operation
I. Product Overview: Torque-Graded Modular Design, Meeting Precise Transmission Needs
Weigao’s M-Series Helical Gear Reducer, covering core models M2, M3, M4 and M5, is a high-precision power transmission device specialized in modular industrial scenarios requiring graded torque output. Based on a torque-graded modular design platform, this series integrates advanced helical gear meshing technology and standardized component design, realizing an excellent balance of precise torque control, efficient transmission, flexible combination and wide adaptability. It effectively solves the pain points of traditional reducers such as unclear torque grading, poor modular compatibility and difficult precise matching, and can maintain stable and reliable power output in working conditions involving variable torque load, modular production line operation and high-precision speed control. With its torque-graded advantages and modular design features, it has become a core transmission component in industries such as intelligent manufacturing, automated assembly lines, light industrial processing and precision logistics, providing precise and efficient power support for industrial modular upgrading. As a key modular transmission product of Weigao, this series has been exported to more than 80 countries and regions around the world, winning wide recognition from global customers with its precise matching performance and modular application value.
II. Core Advantages: Six Core Strengths, Shaping Precision Modular Transmission Benchmarks
1. Precision Helical Transmission, High Efficiency & Low Noise
Adopting precision-ground helical gears with optimized tooth profile and helix angle design, the series achieves meshing accuracy up to GB/T 10095.2 Class 5-6 standard. The parallel-axis helical transmission structure ensures smooth meshing between gears, uniform force distribution and small transmission shock, reducing transmission backlash to ≤3arcmin. The transmission efficiency reaches 95%-98% for single-stage transmission and 93%-96% for multi-stage transmission, effectively reducing energy loss in long-term operation. The fully enclosed cast iron housing with sound insulation structure minimizes operating noise, with the noise level ≤72dB at 1m distance, creating a quiet and stable working environment for automated production workshops.
2. Torque-Graded Model Design, Precise Scene Matching
The four core models of the series adopt scientific torque grading to meet differentiated precision transmission needs: M2 models are small-torque precision models, suitable for light-load precision equipment such as small automated feeders and precision sensors; M3 models are medium-small torque models, ideal for modular assembly line stations and small conveyors; M4 models are medium-torque models, matching medium-load equipment such as automatic packaging machines and logistics sorting systems; M5 models are medium-large torque models, adapting to heavy-load modular equipment such as large-scale conveying lines and multi-station processing machines. This torque-graded design ensures precise matching of different load levels, improving transmission efficiency and equipment operation stability.
3. High-Precision Torque Control, Stable Operation
Gears and transmission shafts are made of high-quality 20CrMnTi alloy steel, processed through carburizing, quenching, tempering and precision grinding processes. The surface hardness reaches HRC 60-64, and the core hardness is HRC 32-38, ensuring excellent wear resistance and torque transmission stability. The optimized gear modulus and tooth width design for each torque grade ensures that the rated output torque of the series is precisely graded from 50N·m to 8000N·m (M2: 50-200N·m; M3: 200-800N·m; M4: 800-3000N·m; M5: 3000-8000N·m). The one-piece cast iron housing with optimized structural design has good rigidity and shock absorption capacity, effectively ensuring stable torque output even under variable load conditions, with a service life of more than 12 years under normal maintenance.
4. Modular Installation, Flexible Combination
The series adopts a fully modular design, supporting mainstream installation modes such as base-mounted, flange-mounted (B5/B14) and shaft-mounted, which can be flexibly selected according to modular equipment layout. The output shaft is configured with multiple options such as solid shaft with flat key, spline solid shaft and hollow shaft with locking disk, and can be precisely matched with motors with power ranging from 0.18kW to 75kW and reduction ratios of 3-400 (single-stage/multi-stage combination). The standardized interface design enables quick combination between different M-series models or with other transmission components, facilitating flexible configuration of modular production lines and reducing equipment transformation costs.
5. Reliable Sealing, Wide Environmental Adaptability
Equipped with a three-layer composite sealing system composed of high-precision double-lip oil seal, labyrinth seal and O-ring, the reducer achieves IP55 protection level (IP65 can be customized for harsh environments). This sealing structure can effectively prevent the intrusion of dust, water vapor and oil mist in automated workshops, avoiding oil leakage and component pollution. The rational internal oil circuit design ensures sufficient lubrication of all transmission components during high-speed operation, and the product can work normally in the operating temperature range of -25℃ to +95℃, adapting to most modular industrial working conditions such as high-temperature workshops and clean workshops.
6. Convenient Maintenance, Cost-Effective Operation
The modular design makes component disassembly and maintenance more convenient, and the high interchangeability of spare parts between the same series reduces maintenance difficulty and cost. The centralized oil filling port, oil drainage port and transparent oil level observation window facilitate daily lubrication management and real-time oil level monitoring. It is recommended to use 220#/320# precision industrial gear oil; the first oil change is after 800 hours of operation, and regular maintenance and oil change are performed every 6000 hours thereafter. The high reliability, long service life and precise torque control of the product effectively reduce the frequency of maintenance and replacement, lowering the total operation cost of modular production lines.
III. Application Fields: Modular Coverage, Boosting Industrial Intelligent Upgrade
With its torque-graded precision, modular design and reliable performance, Weigao’s M-Series Helical Gear Reducer (M2/M3/M4/M5 models) has been widely applied in various modular and intelligent industrial fields:
- Intelligent Manufacturing: Automated assembly lines, robotic arm supporting equipment, precision processing stations, matching precise torque and speed control needs;
- Precision Logistics: Automated sorting systems, small and medium-sized conveyors in clean workshops, adapting to light-medium load modular operation requirements;
- Light Industrial Processing: Automatic packaging machines, plastic film processing equipment, textile winding machinery, matching medium-load continuous operation needs;
- Electronic Manufacturing: Precision electronic component conveyors, PCB processing equipment, adapting to light-load high-precision transmission requirements;
- Food Processing: Automatic food sorting machines, small-scale packaging lines, adapting to clean and low-noise working environment requirements;
IV. Technical Parameters: Precise Matching, Meeting Diverse Needs
| Item | Specification Range |
| Motor Power Adaptation | 0.18kW - 75kW |
| Reduction Ratio | 3 - 400 (Single-stage/Multi-stage Combination) |
| Rated Output Torque | 50N·m - 8000N·m (Torque-Graded) |
| Transmission Efficiency | 93% - 98% (Single-stage/Multi-stage) |
| Operating Noise | ≤72dB (Measured at 1m Distance) |
| Protection Level | IP55 (IP65 Customizable) |
| Operating Temperature | -25℃ - +95℃ |
| Installation Method | Base-mounted, Flange-mounted (B5/B14), Shaft-mounted |
| Output Shaft Type | Solid Shaft (Flat Key/Spline), Hollow Shaft (Locking Disk) |
V. Installation and Maintenance: Scientific Operation, Maximizing Performance
During installation, ensure that the coaxiality error between the reducer and the motor is ≤0.08mm to avoid affecting torque transmission precision. For modular combination installation, pay attention to the alignment accuracy between adjacent reducers and transmission components. Select the appropriate lubricating oil according to the working conditions: use 220# precision industrial gear oil for normal temperature and light-medium load, and 320# precision industrial gear oil for high temperature and medium-heavy load. Regularly check the oil level, oil quality and gear meshing status; replace the lubricating oil after the first 800 hours of operation, and perform comprehensive maintenance every 6000 hours thereafter, including checking sealing performance, fastener tightness and bearing temperature. If abnormal phenomena such as excessive noise, torque fluctuation, oil leakage or overheating occur during operation, stop the machine immediately for inspection and troubleshooting.
VI. Conclusion: Precision-Driven, Creating Modular Transmission Value
Adhering to the design philosophy of "Precision, Modularity, Reliability and Efficiency", Weigao’s M-Series Helical Gear Reducer (M2/M3/M4/M5 models) focuses on the precise torque transmission needs of modular and intelligent industrial fields, and continuously optimizes product structure and production processes. Whether in light-load precision transmission, medium-load continuous operation or modular combination scenarios, this series can provide stable and efficient power transmission solutions for customers with its torque-graded precision and modular compatibility advantages, helping to improve the intelligence level and production efficiency of modular production lines. We will continue to focus on the research and development of precision modular transmission technology, deeply explore the needs of different intelligent industrial fields, provide customized product solutions and global after-sales service support, and work with global customers to build a more efficient and intelligent industrial production system. All export products of this series have passed international certifications such as ROHS, CE and ISO9001, fully complying with the technical standards and safety requirements of various countries and regions, ensuring smooth application in global modular industrial markets.
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