SGR's N Series high torque coaxial planetary gearbox Input forms: N standard shaft input, MN flange ...
See DetailsIn the global industrial machinery sector, reliable power transmission is the backbone of performance, efficiency, and longevity. Among China’s growing roster of precision mechanical component suppliers, SGR has emerged as a trusted name in industrial gearbox manufacturer, serving both domestic and international markets with rigorously engineered solutions.

With over 15 years of specialization in planetary, worm, and hybrid gear systems, SGR combines advanced R&D, vertically integrated production, and responsive technical support to deliver gearboxes that meet the exacting demands of heavy-duty applications worldwide.
Headquartered in Shanghai, SGR operates a 15000-square-meter modern manufacturing facility equipped with state-of-the-art machinery, including four-axis CNC grinding machines for complex surfaces, vertical and horizontal machining centers, CNC vertical turning lathes, and specialized gear-cutting equipment.
This robust infrastructure enables stable, high-volume production without compromising precision or quality.At the core of SGR’s success is its in-house R&D team, comprising PhD-level engineers and senior transmission specialists.
The team has pioneered several industry-first innovations in China, including:
A proprietary toroidal worm gear pair optimization design system,the nation’s first toroidal worm gear and hob measuring instrument and a four-axis linkage CNC grinding platform for high-accuracy tooth surface finishing.
Complementing this innovation capability are advanced validation tools—such as coordinate measuring machines (CMM) and full-load reducer power performance test benches—ensuring every gearbox meets stringent standards for torque capacity, efficiency, noise, and thermal stability before shipment.
This integrated approach—from concept to validation—has positioned SGR as a technology-driven manufacturer, not just an assembler.Today, SGR’s products are widely adopted across China and exported to 26 countries, including the United States, Germany, Brazil, Russia, South Korea, UAE, and Mexico—testament to their global competitiveness in quality, reliability, and service.
SGR offers three main gearbox families, each tailored to specific performance requirements
Designed for high torque density and dynamic responsiveness, SGR’s planetary gearboxes feature:
These units excel in applications demanding compactness, high efficiency (>95% per stage), and long life—such as horizontal directional drilling rigs and metal rolling mills.
For applications requiring high reduction ratios, self-locking capability, and cost-effective right-angle drives, SGR’s worm gearboxes deliver:
They are commonly used in textile printing machines, light industrial conveyors, and marine auxiliary winches where space constraints and safety (via self-braking) are critical.
Combining the best of both worlds, these integrated systems offer ultra-high reduction ratios with enhanced output torque and compact footprint—ideal for slow-speed, high-torque scenarios like mining chain saws or heavy-duty mixers.
All SGR gearboxes are designed with modular interfaces, multiple mounting options (flange, foot, shaft), and compatibility with electric motors, hydraulic motors, or manual inputs—ensuring seamless integration into diverse machinery platforms.
SGR’s industrial gearboxes have proven their value in some of the most demanding sectors:
From a mud pump in Argentina to a textile loom in Vietnam, and from a shipyard crane in Greece to a battery plant in Germany, SGR gearboxes operate reliably under real-world conditions—earning repeat orders and long-term partnerships.
SGR’s rise as a popular industrial gearbox manufacturer stems not from marketing alone, but from consistent engineering excellence, localized agility, and global vision. By investing deeply in R&D, maintaining full control over production quality, and understanding the operational realities of end-users, SGR delivers more than gearboxes—it delivers confidence in motion.
For OEMs and system integrators seeking a dependable, technically capable, and globally supported gearbox partner, SGR is your best choice of industrial gearbox manufacturer.(Author,SGR, Angie Zhang)
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