MC-Series Helical Gear Reducer (MC2/MC3): Compact Anti-Corrosion Transmission, Empowering Harsh Environment Operation
I. Product Overview: Compact Anti-Corrosion Design, Meeting Harsh Environment Transmission Needs
Weigao’s MC-Series Helical Gear Reducer, covering core models MC2 and MC3, is a high-reliability power transmission device specialized in compact-layout industrial scenarios with corrosive, humid or dusty harsh environments. Based on a compact anti-corrosion modular design platform, this series integrates optimized compact structural design, advanced anti-corrosion material technology and efficient helical gear meshing technology, realizing an excellent balance of compact structure, strong anti-corrosion performance, stable transmission and reliable operation. It effectively solves the pain points of traditional reducers such as large volume, poor corrosion resistance, easy failure in harsh environments and difficult adaptation to compact equipment, and can maintain stable and reliable power output in working conditions involving corrosive media, high humidity, heavy dust, limited installation space and continuous operation. With its compact anti-corrosion advantages and targeted model design, it has become a core transmission component in industries such as chemical light industry, marine auxiliary equipment, outdoor environmental protection machinery and food processing (corrosive cleaning), providing reliable power support for industrial production in harsh environments. As a key harsh environment-adapted 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 anti-corrosion reliability and compact application value.
II. Core Advantages: Six Core Strengths, Shaping Harsh Environment Transmission Benchmarks
1. Compact Helical Transmission, Efficient & Stable
Adopting precision-ground helical gears with optimized tooth profile, compact modulus design and high meshing efficiency, the series achieves meshing accuracy up to GB/T 10095.2 Class 6 standard. The parallel-axis helical transmission structure with compact layout ensures smooth meshing between gears, uniform force distribution and small transmission shock, reducing transmission backlash to ≤3arcmin. The transmission efficiency reaches 95%-97% for single-stage transmission and 93%-95% for multi-stage transmission, effectively reducing energy loss in long-term harsh environment operation. The fully enclosed compact cast iron housing (optimized for volume reduction) combines structural stability and sound insulation functions, with operating noise ≤73dB at 1m distance, ensuring stable operation even in narrow harsh environment spaces.
2. Dual-Model Compact & Anti-Corrosion Design, Precise Scene Adaptation
The two core models of the series adopt targeted compact and anti-corrosion design to meet differentiated harsh environment transmission needs: MC2 models are small compact anti-corrosion models, suitable for ultra-compact harsh environment equipment such as small chemical dosing pumps, marine small auxiliary machinery and precision environmental protection sensors; MC3 models are medium compact anti-corrosion models, ideal for medium-load compact equipment in harsh environments such as chemical light industrial conveyors, outdoor small sewage treatment equipment, food processing cleaning lines and marine auxiliary transmission systems. This dual-model design combines compact layout advantages with targeted anti-corrosion enhancement, ensuring precise matching of different load levels and harsh environment types, improving equipment operation stability and service life in harsh conditions.
3. Strong Anti-Corrosion Performance, Durable Harsh Environment Operation
Gears and transmission shafts are made of high-strength 2Cr13 stainless steel (MC2) and 304 stainless steel (MC3) respectively, processed through precision forging, carburizing, quenching, tempering and precision grinding processes. The surface hardness reaches HRC 58-62, ensuring excellent corrosion resistance, wear 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 matched from 80N·m to 3500N·m (MC2: 80-500N·m; MC3: 500-3500N·m). The compact cast iron housing is treated with electrophoretic anti-corrosion coating + outer layer anti-rust paint, and key connecting parts adopt stainless steel fasteners, forming a multi-layer anti-corrosion protection system. This design can effectively resist the erosion of acid, alkali, salt mist and humid air, ensuring a service life of more than 12 years under normal maintenance in harsh environments.
4. Ultra-Compact Installation, Flexible Layout Adaptation
The series adopts an integrated ultra-compact design, supporting space-saving installation modes such as flange-mounted (B5/B14), small flange-mounted and base-mounted, which can be flexibly installed in narrow spaces of harsh environment equipment. The output shaft is configured with compact and reliable options such as solid shaft with flat key and hollow shaft with locking disk, and can be precisely matched with motors with power ranging from 0.37kW to 45kW and reduction ratios of 5-300 (single-stage/multi-stage combination). The standardized and miniaturized interface design facilitates quick installation and replacement in harsh environments, reducing construction difficulty and time cost, and adapting to the compact layout needs of various harsh environment equipment.
5. Enhanced Sealing & Heat Dissipation, Wide Harsh Environment Adaptability
Equipped with a four-layer enhanced sealing system composed of corrosion-resistant double-lip oil seal, labyrinth seal, O-ring and sealant, the reducer achieves IP65 protection level (IP66 can be customized for extreme harsh environments). This sealing structure can effectively prevent the intrusion of corrosive media, dust, water vapor and salt mist in harsh environments, avoiding oil leakage and internal component corrosion. The rational internal oil circuit design combined with the enhanced heat dissipation fins on the housing ensures sufficient lubrication and heat dissipation of all transmission components during high-temperature harsh environment operation, and the product can work normally in the operating temperature range of -25℃ to +100℃, adapting to most harsh working conditions such as chemical workshops, coastal marine environments, outdoor high-humidity dusty areas and high-temperature corrosion workshops.
6. Easy Maintenance, Cost-Effective Harsh Environment Operation
The modular and compact design makes component disassembly and maintenance more convenient, and the anti-corrosion components have high interchangeability, reducing maintenance difficulty and time cost in harsh environments. The centralized and protected oil filling port, oil drainage port and transparent oil level observation window (with anti-corrosion cover) facilitate daily lubrication management and real-time oil level monitoring, avoiding corrosion of maintenance components. It is recommended to use 220#/320# anti-corrosion industrial gear oil, which further enhances the anti-corrosion protection of internal components; the first oil change is after 800 hours of operation, and regular maintenance and oil change are performed every 5000 hours thereafter. The strong anti-corrosion performance, long service life and reliable operation of the product effectively reduce the frequency of maintenance and replacement in harsh environments, significantly lowering the total operation cost of customers.
III. Application Fields: Harsh Environment Coverage, Boosting Stable Industrial Production
With its compact structure, strong anti-corrosion performance, reliable transmission and wide harsh environment adaptability, Weigao’s MC-Series Helical Gear Reducer (MC2/MC3 models) has been widely applied in various harsh environment industrial fields:
- Chemical Light Industry: Small chemical dosing pumps, chemical raw material conveyors, acid-base solution mixing equipment, adapting to corrosive medium working environments;
- Marine Auxiliary Equipment: Marine small water pumps, marine auxiliary transmission systems, coastal operation machinery, adapting to salt mist and humid marine environments;
- Environmental Protection Machinery: Outdoor small sewage treatment equipment, dust removal equipment, waste sorting conveyors, adapting to high-humidity and dusty working environments;
- Food Processing: Food cleaning lines, pickling equipment, beverage processing auxiliary machinery, adapting to corrosive cleaning and humid working environments;
- Coastal/Mine Auxiliary: Coastal small material conveyors, mine auxiliary drainage equipment, adapting to salt mist, dusty and humid composite harsh environments;
IV. Technical Parameters: Precise Matching, Meeting Diverse Needs
| Item | Specification Range |
| Motor Power Adaptation | 0.37kW - 45kW |
| Reduction Ratio | 5 - 300 (Single-stage/Multi-stage Combination) |
| Rated Output Torque | 80N·m - 3500N·m (Dual-Model Graded) |
| Transmission Efficiency | 93% - 97% (Single-stage/Multi-stage) |
| Operating Noise | ≤73dB (Measured at 1m Distance) |
| Protection Level | IP65 (IP66 Customizable) |
| Operating Temperature | -25℃ - +100℃ |
| Installation Method | Flange-mounted (B5/B14), Small Flange-mounted, Base-mounted |
| Output Shaft Type | Solid Shaft (Flat Key), 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 ≤0.1mm to avoid affecting transmission stability and sealing performance. For outdoor or corrosive environment installation, pay attention to the waterproof and anti-corrosion treatment of the installation base, and ensure that the ventilation and heat dissipation space around the reducer is sufficient. Select the appropriate lubricating oil according to the working conditions: use 220# anti-corrosion industrial gear oil for normal temperature and light-medium load, and 320# anti-corrosion industrial gear oil for high temperature and medium-heavy load. Regularly check the oil level, oil quality and sealing status; replace the lubricating oil after the first 800 hours of operation, and perform comprehensive maintenance every 5000 hours thereafter, including checking gear meshing status, anti-corrosion coating integrity, fastener tightness and bearing temperature. If abnormal phenomena such as excessive noise, oil leakage, corrosion spots or overheating occur during operation, stop the machine immediately for inspection and troubleshooting.
VI. Conclusion: Anti-Corrosion & Compact-Driven, Creating Harsh Environment Transmission Value
Adhering to the design philosophy of "Compactness, Anti-Corrosion, Reliability and Durability", Weigao’s MC-Series Helical Gear Reducer (MC2/MC3 models) focuses on the stable and reliable transmission needs of industrial fields in harsh environments, and continuously optimizes product structure and anti-corrosion technology. Whether in corrosive chemical workshops, humid marine environments, dusty outdoor sites or compact harsh environment equipment, this series can provide stable and efficient power transmission solutions for customers with its compact anti-corrosion performance and targeted model design advantages, helping to improve production stability and reduce operation risks in harsh environments. We will continue to focus on the research and development of harsh environment-adapted transmission technology, deeply explore the needs of different harsh environment industries, provide customized product solutions and global after-sales service support, and work with global customers to build a more reliable and efficient industrial production system in harsh environments. 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 harsh environment industrial markets.
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