What are the advantages of the planetary gearbox manufacturer SGR ?

On the vibrant and dynamic landscape of Shanghai’s Jinshan District, an enterprise dedicated to gear transmission technology is steadily rising to prominence.

Evolving from a startup within the Shanghai Jinshan Industrial Park into a well-established and a famous reducer manufacturer with a business footprint spanning over 30 countries and regions across Asia, Europe, the Americas, Australia, and the Middle East, SGR has spent nearly two decades engaging in deep cultivation and innovation.

In doing so, the company has penned a legendary tale of transformation—shifting from a "follower" to a "leader"—and has emerged as a veteran, trusted representative enterprise within China's reducer industry, as well as a trailblazer in the field of heavy-duty transmission systems.

Rooted in Shanghai, extending its reach across the nation, and connecting globally, SGR has established two core product systems centered on the "N Series Planetary Gear Reducers" and the "C Series Worm Gear Reducers."

Products

Specifically, the gears in the N-series planetary gear reducers are manufactured from 20CrMnTi steel,following carburizing and quenching, they undergo precision grinding. This design offers several advantages, including load distribution across multiple teeth, smooth and reliable operation, and high mechanical efficiency.

The C-series worm gear reducers are characterized by multi-tooth meshing between the worm and the worm wheel. The worm is constructed from 20CrMnTi steel—similarly carburized, quenched, and precision-ground—while the worm wheel is made of high-performance alloy bronze, ensuring long-lasting wear resistance. This configuration results in high transmission efficiency and a long service life. Compared to cylindrical worm gear sets of equivalent specifications, the C-series worm gear reducers demonstrates significantly enhanced load-bearing capacity and transmission efficiency; furthermore, at high reduction ratios, it exhibits mechanical self-locking capabilities, thereby effectively enhancing the safety performance of hoisting machinery.

SGR have developed the first domestic—and internationally leading—toroidal worm precision measuring instrument, capable of measuring toroidal worms with Grade 4 precision and ensuring that their tooth profile geometry complies with DIN/ISO standards.

SGR is further equipped with a comprehensive array of testing equipment—including coordinate measuring machines (CMMs), micro-hardness testers, geometric precision measuring instruments, and reducer power performance test benches—thereby establishing leading technical capabilities and a specialized system that integrates design, manufacturing, and technical services. Within SGR ’s 15,000-square-meter proprietary manufacturing facility, advanced machinery—such as 4-axis simultaneous-control complex-profile CNC surface grinders, vertical and horizontal machining centers, gear machine tools, and CNC vertical turning centers—ensures the precision machining and manufacturing of its speed reducers.

The parameters of the planetary and worm gear reducers.

Team ability

The R&D Center at SGR brings together a team of doctoral researchers and senior engineers spanning diverse disciplines—including mechanical engineering and electrical control—boasting formidable research capabilities that serve as a ceaseless driving force for technological breakthroughs. Furthermore,  SGR has secured numerous authorized patents across various technical domains, such as planetary gear reducers and worm gear reducers. Leveraging its robust innovative capacity, the company has earned the prestigious title of "Shanghai High-Tech Enterprise," been included in Shanghai’s directory of "Specialized, Refined, Special, and New" enterprises, and had multiple products officially recognized as High-Tech Achievement Transformation Projects—thereby solidifying the foundation of its development through sheer technical prowess.

Company vision

"Our corporate vision has always been: to serve as a practitioner of technological innovation in the field of mechanical transmission," stated a representative from SGR, a division of SGR. Currently, SGR’s speed reducers are widely utilized in heavy-duty sectors—including construction machinery, marine auxiliary equipment, mining machinery, and textile and dyeing machinery—as well as in various other applications such as trenchless horizontal directional drilling rigs, tablet presses, sightseeing vessels, and belt conveyors.

From its humble beginnings to distributing products across 31 countries, SGR ’s comprehensive and multi-dimensional market strategy serves not only as a vivid microcosm of Chinese enterprises achieving innovative breakthroughs but also as a testament to the rise of China's machinery manufacturing sector.

Moving forward, SGR will continue to uphold its corporate spirit of "staying true to our roots while innovating and striving for new heights," continuously deepening innovation in gear transmission technology and expanding its global market presence to make even greater contributions to the field of intelligent manufacturing. (Author,SGR, Angie Zhang)

Email: export@sgr.com.cn

WhatsApp: +86 188 1807 0282