S series helical worm gear reducer （SHZ..R,SHF..R,SH..R,SF..R,SAZ..R,SAF..R）

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The S-Series Helical Gear-Worm Reducer by Weigao features an innovative dual-transmission system combining helical gears and worms. Its modular and compact design significantly saves installation space, making it suitable for diverse industrial applications. With superior performance, it achieves a transmission efficiency of up to 92%–96%, offers a reduction ratio range from 5:1 to 1000:1, and provides torque output from 50 N·m to 5000 N·m. Compared to standard reducers, it delivers 15%–20% energy savings and operates at noise levels below 75 dB, ensuring both high efficiency and quiet performance.

Thanks to its multi-start worm design, carburized and quenched core components (hardness up to HRC 58–62), and IP54 protection rating, the reducer performs reliably under demanding conditions such as low-speed heavy loads, dust, and humidity, with a service life exceeding 10 years. It supports multiple mounting options—horizontal, vertical, flange, and foot-mounted—and is compatible with motors ranging from 0.12 kW to 75 kW. Widely used in automation equipment, logistics handling, construction machinery, general manufacturing, and agricultural machinery, it is designed for easy installation and maintenance.

As a key export product of Weigao, these geared motors comply with international certifications including ROHS and CE, and are exported to over 80 countries and regions such as the United States, Russia, India, Southeast Asia, and Africa, earning global trust through outstanding quality and reliability.

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S series

Description

S-Series Helical Worm Gear Reducer: Efficient Transmission, Accurately Empowering Industrial Upgrades

I. Product Overview: Innovative Design, Reshaping Transmission Experience

The S-Series Helical Worm Gear Reducer is a high-precision speed reduction equipment integrating helical gear and worm transmission technologies, specifically designed to meet the power transmission needs of industrial machinery. Adopting a modular design concept, the product perfectly combines the efficient meshing of helical gears with the large reduction ratio characteristics of worm transmission. It not only solves the pain points of large volume and high energy consumption of traditional reducers but also achieves stable output in low-speed and heavy-load scenarios. Its compact structural layout, excellent transmission efficiency, and wide adaptability make it a core power component in fields such as automated production lines, logistics and conveying equipment, and construction machinery, providing reliable support for the efficient and intelligent upgrading of industrial production.

II. Core Advantages: Four Highlights, Defining Transmission Benchmarks

1. High Efficiency and Energy Saving, Low Transmission Loss: Helical gears and worms are made of high-quality alloy materials, processed by precision gear grinding. The meshing accuracy meets GB/T 10095.2 Class 6 standard, with a transmission efficiency of 92%-96%, saving 15%-20% energy compared to ordinary worm reducers. The unique helical tooth profile design reduces meshing impact and noise, with an operating noise below 75dB, creating a quiet working environment for the workshop.

2. Stable Heavy-Load Performance, Strong Load-Bearing Capacity: The worm adopts a multi-start right-hand rotation design, forming multi-point contact transmission with helical gears. The contact area is increased by 30% compared with the traditional structure, and the rated output torque ranges from 50N·m to 5000N·m, which can easily cope with harsh working conditions such as low-speed heavy load and frequent start-stop. The box body is manufactured by integrated cast iron casting process, with strong rigidity and good seismic performance, effectively dispersing stress concentration during transmission and extending service life.

3. Flexible Adaptability, Easy Installation: The product offers various installation methods such as horizontal, vertical, and flange-mounted. The output shaft can be configured with flat key, spline, or hollow shaft structures, adapting to motor power ranging from 0.12kW to 75kW and reduction ratio ranging from 5 to 1000, which can be flexibly combined according to the power needs of different equipment. The modular design of components facilitates later maintenance and replacement, reducing equipment downtime costs.

4. Corrosion and Wear Resistance, High Reliability: Key transmission components are subjected to carburizing and quenching treatment on the surface, with a hardness of HRC 58-62, possessing excellent wear and corrosion resistance. The sealing system adopts a double skeleton oil seal + labyrinth seal structure, with a protection level of IP54, which can effectively prevent the intrusion of dust and oil pollution, adapting to harsh industrial environments. The service life can reach more than 10 years under normal maintenance.

III. Application Fields: Comprehensive Coverage, Empowering Multi-Industry Development

With its multi-scenario adaptability, the S-Series Helical Worm Gear Reducer has been widely used in various industrial fields:

• Automated Equipment: Robot joints, automated production lines, manipulators, etc., providing precise speed control and power output;

• Logistics and Warehousing: Belt conveyors, roller lines, stackers, etc., ensuring stable and efficient material transportation;

• Construction Machinery: Small cranes, loaders, excavators, etc., adapting to outdoor heavy-load operation needs;

• General Machinery: Water pumps, fans, mixers, etc., optimizing power transmission efficiency and reducing operating energy consumption;

• Agricultural Machinery: Harvesters, tractors, plant protection machinery, etc., adapting to complex field working conditions and improving operation stability.

IV. Technical Parameters: Precise Matching, Meeting Personalized Needs

Item	Specification Range
Motor Power Adaptation	0.12kW - 75kW
Reduction Ratio	5 - 1000 (Single-stage/Multi-stage Combination)
Rated Output Torque	50N·m - 5000N·m
Transmission Efficiency	92% - 96%
Operating Noise	≤75dB (Measured at 1m Distance)
Protection Level	IP54 (IP65 Customizable)
Operating Temperature	-20℃ - +80℃
Installation Method	Horizontal, Vertical, Flange-mounted, Foot-mounted
Output Shaft Type	Solid Shaft (Flat Key/Spline), Hollow Shaft

V. Installation and Maintenance: Scientific Operation, Extending Equipment Life

During installation, ensure that the coaxiality error between the reducer and the motor is ≤0.1mm to avoid component wear caused by transmission deviation. Regularly check the lubricating oil level; it is recommended to use 220# medium-load industrial gear oil. Replace it after the first 500 hours of operation, and maintain it every 5000 hours thereafter. If the equipment has abnormal noise or vibration, stop the machine for inspection in a timely manner, focusing on checking the gear meshing status and sealing system to ensure stable operation of the equipment.

VI. Conclusion: Driven by Quality, Empowered by Innovation

Adhering to the design concept of "Precise Transmission, High Efficiency and Energy Saving, Stable and Reliable", the S-Series Helical Worm Gear Reducer continuously meets the growing high-end transmission needs in the industrial field through continuous technological iteration and process upgrading. Whether it is precise control of automated production or stable output under heavy-load conditions, the product can reduce production costs and improve production efficiency for customers with its excellent performance, becoming an indispensable core power partner in the process of industrial upgrading. We will continue to deepen transmission technology, provide customized product solutions and comprehensive after-sales service, and work with customers to create a bright future for industrial intelligence.

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