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For decades, imported planetary gearboxes have been widely used in heavy-duty industrial equipment because of their established technology, product reliability,...
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SGR's N Series high torque coaxial planetary gearbox In...
Model: 200-885Ratio: 3.15-7800Output Torque :1500Nm-540...
Planetary Gearbox Application For In Electric Drive Mo...
Planetary Gearbox Application For Drilling Machine Rat...
Model: 200-885 Ratio: 3.15-7800 Output Torque :1500Nm-5...
Planetary gear reducers serve as key transmission parts...
Key feature:Planetary gearbox is produced by modular de...
● We are a professional industrial gearbox solution research and development design manufacturer with more than 15 years of experience that will support you with more competitive technical and price support.
● We have rich application experience to provide you with more professional, precise, and better service support
● High-grand components and strict product quality control procedures offer reliable product quality.
● We have years of exporting experience to decades of regions worldwide, and multi-competitive shipping choices, which can give you more reliable, fast, and cost-effective shipping.
● TUV CE approved test item based on IEC 61000 AND IEC 62477 series standards
SGR gearboxes are used in garbage salvage boats and waterweed salvage boats
SGR gearboxes are used in mud pumps
SGR gearboxes are used in crushers and shredders
SGR gearboxes are used in lead-acid battery plate rolling
SGR gearboxes are used in cranes and construction cranes.
SGR gearboxes are used in trenchless horizontal directional drillings.
SGR gearboxes are used in palm oil equipment.
SGR gearboxes are used in palm oil equipment.
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SGR gearboxes on PTC ASIA 2024
SGR gearboxes on PTC ASIA 2024
SGR gearboxes on PTC ASIA 2024
SGR gearboxes on PTC ASIA 2024
SGR gearboxes on bauma CHINA2024
SGR gearboxes on bauma CHINA 2024
SGR gearboxes on bauma CHINA 2024
SGR gearboxes on bauma CHINA 2024
SGR gearboxes on ITTC2024
SGR gearboxes on ITTC2024
SGR gearboxes on ITTC2024
SGR gearboxes on ITTC2024
SGR gearboxes on DMP2023
SGR gearboxes on DMP2023
SGR gearboxes on DMP2023
SGR gearboxes on DMP2023
SGR gearboxes on PTC ASIA2023
SGR gearboxes on PTC ASIA2023
SGR gearboxes on PTC ASIA2023
SGR gearboxes on PTC ASIA2023
A gear reducer,also commonly know as a gearbox, is a mechanical device used to increase torque while decreasing speed between two rotating shafts. This change in speed-to-torque ratio allows machines to operate more efficiently and safely.
SGR gear reducers are known for their reliability, efficiency, and durability. They offer superior performance and are crafted using cutting-edge technology, which makes them suitable for a wide range of industrial and mechanical applications.
When selecting a gear reducer, consider factors such as the required speed and torque output, the operating environment, and the type of motor or machinery it will be connected to. You can also directly consult SGR technical expert.
Most gear reducers can handle a range of operating conditions, extremely high temperatures may affect their performance and lifespan. Special high-temperature gear reducers are available for such environments.
Regular inspection, lubrication, and replacement of worn parts are key to maintaining your speed reducer. SGR provides guidelines for maintenance when you buy gear reducers.
Failure of a gear reducer can lead to a reduction in machinery efficiency, excessive noise, and even machinery breakdown. Regular maintenance and inspections can prevent most failures.
SGR gear reducers can be purchased directly from SGR factory. Request a quote or contact us at any time.
With proper maintenance and under normal operating conditions, SGR gear reducers can last for many years. The exact lifespan depends on usage and environmental factors.
Yes, SGR offers custom solutions to meet unique operational requirements in different industries. If you need customized reducer solutions, feel free to contact with us.
Yes, SGR has its own factory with the area of 15000㎡.
For decades, imported planetary gearboxes have been widely used in heavy-duty industrial equipment because of their established technology, product reliability,...
READ MOREPicking between a Customised Gearbox and a standard unit off the shelf is really a question of fit: does your machine's torque, speed, space, and duty cycle ma...
READ MORETwo reducers on the same production line can deliver the same ratio in completely different ways. A helical gearbox reaches 40:1 through several stages of roll...
READ MOREWhen selecting a gearbox for heavy-duty industrial machinery, engineers and equipment manufacturers often compare two common transmission solutions: planetary g...
READ MOREShanghai SGR Heavy Industry Machinery Co., Ltd. is a China-based manufacturer and supplier of coaxial planetary gear reducers, engineered for high torque density, compact axial dimensions, and reliable operation in demanding industrial applications. Our range covers standard and custom configurations with ratios from 3.15 to 7800 and output torque up to 540,000 Nm, serving sectors such as mining, construction, marine, and renewable energy.
With over 15 years of gear transmission expertise and a 15,000 m² factory, we integrate design, production, and technical services to deliver reducers that meet specific performance and integration requirements.
Our coaxial planetary gear reducers are available in several series to match different application needs:
| Series | Key Features | Typical Applications |
|---|---|---|
| N Series High Torque | Base-mounted, high torque density, modular design | Cranes, crushers, heavy machinery |
| Gear Motor Series | Integrated with electric motors, ratios 3.15-7800 | Conveyors, mixers, industrial drives |
| Hydraulic Motor Series | Designed for hydraulic motor input, compact | Drilling rigs, marine propulsion, winches |
| Slewing Drive Series | High torque for slewing applications, robust | Excavators, cranes, solar trackers |
We understand that each application has unique load profiles and mounting constraints. Our engineering team works from your drawings or performance specifications to customize gear geometry, shaft configurations, flanges, and materials. We use advanced design software and in-house developed optimization systems to ensure high efficiency and low noise.
Our manufacturing capabilities include CNC machining, gear grinding, and heat treatment, supported by rigorous quality control at every stage.
Every coaxial planetary gear reducer undergoes inspection and testing to verify dimensional accuracy, material integrity, and performance. Our factory is equipped with coordinate measuring machines, a gear reducer power performance test platform, and specialized instruments for worm and hob measurement. We are ISO 9001 certified and can provide test reports and compliance documentation as required.
Proper installation is critical for long service life. We provide detailed installation manuals and technical guidance to ensure correct alignment, lubrication, and mounting. Our reducers are designed for easy maintenance, with accessible lubrication points and replaceable seals. We offer training materials and remote support to help your team maintain optimal performance.
To prepare a precise proposal, we need the following application data:
With this information, we can recommend the optimal series and configuration, and provide a detailed quotation.
Lead time depends on complexity and current production schedule. Standard configurations may ship within 30-45 days, while custom designs typically require 8-12 weeks. We confirm exact timelines during quotation.
Yes, we specialize in customization. Provide your drawings or detailed dimensions, and our engineers will adapt the design to meet your interface requirements.
All SGR gearboxes and motors come with a 1-year warranty. We also offer after-sales technical support to assist with any issues.
Yes, we supply genuine spare parts, including gears, seals, and bearings, to ensure long-term serviceability. Contact us with your reducer model to order parts.
We implement strict quality control from incoming materials to final assembly. Each unit is tested under load conditions, and we provide inspection reports upon request.
SGR is an ISO 9001 certified, DNV-accredited industry gearbox manufacturer since 1996. We supply different gear reducers to brands worldwide.
