HB-Series Industrial Gear Reducer (H1SH/H2SH/H3SH/H4SH/B2SH/B3SH): Graded Heavy-Duty Transmission, Empowering Industrial Core Operation
I. Product Overview: Graded Configuration Design, Meeting Core Heavy-Duty Transmission Needs
Weigao’s HB-Series Industrial Gear Reducer, covering core models H1SH, H2SH, H3SH, H4SH, B2SH and B3SH, is a high-performance power transmission device specialized in core industrial scenarios requiring graded heavy-duty operation. Based on a dual-series graded configuration design platform, this series integrates advanced heavy-duty helical gear technology, reinforced structural design and flexible modular assembly technology, realizing an excellent balance of graded load adaptation, high torque transmission, stable operation and wide compatibility. It effectively solves the pain points of traditional reducers such as single load adaptation, insufficient bearing capacity, poor stability in heavy-duty operation and difficult matching with different industrial core equipment, and can maintain stable and reliable power output in working conditions involving heavy load, continuous operation, frequent start-stop and large impact. With its graded configuration advantages and heavy-duty stable performance, it has become a core transmission component in industries such as heavy machinery, mining equipment, cement building materials, port handling and large-scale conveying systems, providing high-reliability power support for core industrial production. As a key heavy-duty 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 heavy-duty reliability and graded adaptation value.
II. Core Advantages: Six Core Strengths, Shaping Heavy-Duty Transmission Benchmarks
1. Graded Heavy-Duty Helical Transmission, Efficient & Stable
Adopting precision-ground heavy-duty helical gears with optimized tooth profile, high-strength modulus design and advanced tooth surface修形 technology, the series achieves meshing accuracy up to GB/T 10095.2 Class 6 standard. The parallel-axis helical transmission structure with reinforced design ensures deep and uniform meshing between gears, reasonable force distribution and small transmission shock, reducing transmission backlash to ≤3arcmin. The transmission efficiency reaches 94%-96% for single-stage transmission and 92%-95% for multi-stage transmission, effectively reducing energy loss in long-term heavy-duty operation. The fully enclosed integral cast iron housing with reinforced rib design combines excellent structural rigidity and shock absorption functions, with operating noise ≤75dB at 1m distance, ensuring stable operation even in high-intensity heavy-duty working environments.
2. Dual-Series Graded Configuration, Precise Heavy-Duty Adaptation
The six core models of the series are divided into H and B dual series with targeted graded configuration to meet differentiated heavy-duty transmission needs: H-series models (H1SH, H2SH, H3SH, H4SH) are standard heavy-duty models, covering small to large torque ranges, suitable for standard heavy-duty equipment such as general mining conveyors, cement production line auxiliary machinery and medium-sized port hoists; among them, H1SH/H2SH are small-medium torque standard models, and H3SH/H4SH are large torque enhanced standard models. B-series models (B2SH, B3SH) are enhanced heavy-duty models with reinforced structural design, ideal for high-intensity heavy-duty equipment such as large-scale mining machinery, heavy port handling equipment and high-load cement mill auxiliary systems. This dual-series graded design ensures precise matching of different heavy-duty load levels and working intensity requirements, improving equipment operation stability and service life.
3. High Torque Bearing Capacity, Durable Heavy-Duty Operation
Gears and transmission shafts are made of high-strength 40CrNiMoA alloy steel (H-series) and 20CrMnTi alloy steel with enhanced heat treatment (B-series), processed through precision forging, 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, impact resistance and torque transmission stability. The optimized gear modulus and tooth width design for each model ensures that the rated output torque of the series is precisely graded from 500N·m to 25000N·m (H1SH: 500-1500N·m; H2SH: 1500-5000N·m; H3SH: 5000-12000N·m; H4SH: 12000-20000N·m; B2SH: 8000-18000N·m; B3SH: 18000-25000N·m). The integral cast iron housing with high rigidity ensures no deformation under heavy load, ensuring a service life of more than 15 years under normal maintenance in heavy-duty environments.
4. Modular Heavy-Duty Installation, Flexible Layout Adaptation
The series adopts a heavy-duty modular design, supporting multiple installation modes such as base-mounted, flange-mounted (B5/B14), torque arm-mounted and shaft-mounted, which can be flexibly selected according to the layout of heavy-duty industrial equipment. The output shaft is configured with heavy-duty reliable options such as large-diameter solid shaft with flat key, spline solid shaft and large-torque hollow shaft with locking disk, and can be precisely matched with motors with power ranging from 1.5kW to 200kW and reduction ratios of 5-400 (single-stage/multi-stage combination). The standardized heavy-duty interface design facilitates quick installation and replacement in heavy-duty workshops, reducing construction difficulty and time cost, and adapting to the layout needs of various core heavy-duty industrial equipment.
5. Enhanced Sealing & Heat Dissipation, Wide Heavy-Duty Environment Adaptability
Equipped with a four-layer enhanced sealing system composed of heavy-duty double-lip oil seal, labyrinth seal, high-temperature resistant O-ring and sealant, the reducer achieves IP65 protection level. This sealing structure can effectively prevent the intrusion of dust, coal dust, water vapor and gravel in heavy-duty working environments, avoiding oil leakage and internal component wear. The optimized internal oil circuit design combined with the large-area enhanced heat dissipation fins on the housing ensures sufficient lubrication and heat dissipation of all transmission components during high-temperature and high-load operation, and the product can work normally in the operating temperature range of -20℃ to +110℃, adapting to most heavy-duty working conditions such as mining workshops, cement plants, port terminals and outdoor high-temperature heavy-duty sites.
6. Convenient Heavy-Duty Maintenance, Cost-Effective Operation
The modular and heavy-duty structural design makes component disassembly and maintenance more convenient, and the high interchangeability of spare parts between the same series reduces maintenance difficulty and time cost in heavy-duty environments. The centralized and protected large-diameter oil filling port, oil drainage port and high-temperature resistant transparent oil level observation window facilitate daily lubrication management and real-time oil level monitoring. It is recommended to use 320#/460# heavy-duty industrial gear oil, which further enhances the wear resistance and load-bearing capacity of internal components; the first oil change is after 1000 hours of operation, and regular maintenance and oil change are performed every 6000 hours thereafter. The high reliability, long service life and strong load-bearing capacity of the product effectively reduce the frequency of maintenance and replacement in heavy-duty environments, significantly lowering the total operation cost of customers.
III. Application Fields: Heavy-Duty Core Coverage, Boosting Industrial Production Efficiency
With its dual-series graded configuration, high torque bearing capacity, reliable transmission and wide heavy-duty environment adaptability, Weigao’s HB-Series Industrial Gear Reducer (H1SH/H2SH/H3SH/H4SH/B2SH/B3SH models) has been widely applied in various core heavy-duty industrial fields:
- Mining Industry: Mine conveyors, small-medium mining machinery, coal handling systems, adapting to heavy-load and dusty working environments;
- Cement & Building Materials: Cement production line auxiliary machinery, concrete mixing equipment, stone crushing machines, adapting to high-load and high-temperature working environments;
- Port Handling: Medium-sized port hoists, container conveyors, port loading and unloading equipment, adapting to heavy-load and frequent start-stop working environments;
- Heavy Machinery: Large-scale conveying systems, heavy-duty industrial fans, steel production line auxiliary equipment, adapting to continuous heavy-load working environments;
- Urban Infrastructure: Sewage treatment plant large-scale water pumps, garbage incineration plant conveying equipment, adapting to heavy-load and harsh environment working conditions;
IV. Technical Parameters: Precise Matching, Meeting Diverse Needs
| Item | Specification Range |
| Motor Power Adaptation | 1.5kW - 200kW |
| Reduction Ratio | 5 - 400 (Single-stage/Multi-stage Combination) |
| Rated Output Torque | 500N·m - 25000N·m (Dual-Series Graded) |
| Transmission Efficiency | 92% - 96% (Single-stage/Multi-stage) |
| Operating Noise | ≤75dB (Measured at 1m Distance) |
| Protection Level | IP65 |
| Operating Temperature | -20℃ - +110℃ |
| Installation Method | Base-mounted, Flange-mounted (B5/B14), Torque Arm-mounted, Shaft-mounted |
| Output Shaft Type | Large-Diameter Solid Shaft (Flat Key/Spline), Large-Torque 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 ≤0.12mm to avoid affecting transmission stability and load-bearing capacity. For heavy-duty and high-vibration environment installation, pay attention to the reinforcement of the installation base and the use of shock-absorbing pads. Select the appropriate lubricating oil according to the working conditions: use 320# heavy-duty industrial gear oil for normal temperature and medium-heavy load, and 460# heavy-duty industrial gear oil for high temperature and heavy load. Regularly check the oil level, oil quality, gear meshing status and fastener tightness; replace the lubricating oil after the first 1000 hours of operation, and perform comprehensive maintenance every 6000 hours thereafter, including checking bearing temperature, sealing performance and housing deformation. If abnormal phenomena such as excessive noise, obvious vibration, oil leakage or overheating occur during operation, stop the machine immediately for inspection and troubleshooting.
VI. Conclusion: Graded Heavy-Duty Driven, Creating Core Industrial Transmission Value
Adhering to the design philosophy of "Graded Configuration, Heavy-Duty Reliability, Stability and Efficiency", Weigao’s HB-Series Industrial Gear Reducer (H1SH/H2SH/H3SH/H4SH/B2SH/B3SH models) focuses on the stable and efficient transmission needs of core heavy-duty industrial fields, and continuously optimizes product structure and heavy-duty technology. Whether in standard heavy-duty transmission, high-intensity enhanced heavy-duty operation or complex heavy-duty environment scenarios, this series can provide stable and efficient power transmission solutions for customers with its dual-series graded configuration and high torque bearing capacity advantages, helping to improve production stability and efficiency of core industrial equipment. We will continue to focus on the research and development of heavy-duty transmission technology, deeply explore the needs of different heavy-duty industrial fields, provide customized product solutions and global after-sales service support, and work with global customers to build a more reliable and efficient core 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 heavy-duty industrial markets.
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