Planetary And Toroidal Worm Combined Reducer Suppliers

Planetary And Toroidal Worm Combined Reducer Manufacturer

Shanghai SGR Heavy Industry Machinery Co., Ltd. designs and builds the Planetary And Toroidal Worm Combined Reducer for applications that demand high torque density, compact mounting, and precise output control. As a China-based manufacturer with over 15 years of gear transmission experience, we combine a planetary gear stage with a toroidal worm stage to deliver ratios and torque capacity that neither stage could achieve alone in the same envelope.

Our combined reducers serve industries such as material handling, construction machinery, marine equipment, and specialized process machinery. We engineer each unit around your duty cycle, mounting interface, and control requirements, not a standard catalog approximation.

Product Range and Positioning

We offer the planetary and toroidal worm combined reducer as a dedicated category within our Combination Reducer line. The design integrates a toroidal worm primary stage with a planetary output stage, providing:

• High reduction ratios in a single compact housing, reducing the need for multiple inline reducers.
• High torque output with smooth, quiet operation due to the toroidal worm's multiple tooth contact.
• Self-locking capability when required, ideal for hoisting and positioning applications.
• Right-angle input/output configuration, saving space in machinery layouts.

Our factory in Shanghai, with 15,000 m² of production space, supports both standard configurations and fully customized designs. We control gear grinding, housing machining, and final assembly in-house to maintain consistent quality.

Application Fit

The combined reducer is selected when a machine requires a large speed reduction with high torque in a limited space, often where a right-angle drive is beneficial. Typical applications include:

Engineering and Customization

Our R&D team, including PhDs and senior engineers, has developed proprietary optimization software for toroidal worm gear design. We use this to tailor the gear geometry to your load profile, improving efficiency and service life. Customization options include:

• Input configurations: IEC motor flange, shaft input, or hydraulic motor adapter.
• Output options: Solid shaft, hollow shaft with shrink disc, or splined output.
• Mounting: Foot, flange, or torque arm, with custom bolt patterns.
• Materials: Ductile iron housings, case-hardened alloy steel gears, and bronze worm wheels.
• Environmental protection: IP65 or higher sealing, special paints, and stainless steel fasteners.

We also integrate accessories such as backstops, encoders, and forced lubrication systems when your application requires them.

Quality Assurance and Testing

Every combined reducer undergoes inspection at critical stages. Our factory is equipped with CNC machines, a coordinate measuring machine, and a gearbox power and efficiency test system. We perform:

• Material verification for housings and gears.
• Dimensional inspection of gear tooth profiles and housing bores.
• Noise and vibration testing under load.
• Efficiency measurement to confirm performance against design targets.
• Run-in testing to ensure smooth operation and proper contact patterns.

Our quality management system is ISO 9001 certified, and we can provide test reports and material certificates with each shipment.

Information We Use to Configure Your Solution

To prepare an accurate proposal, we need the following project data:

With this information, we provide a detailed quotation including dimensional drawings, performance data, and delivery terms.

Installation, Maintenance, and Support

We supply installation and maintenance manuals with every unit. Our support team is available for commissioning assistance and troubleshooting. We stock spare parts for standard models and can provide service kits for long-term maintenance. All SGR gearboxes come with a 1-year warranty.

FAQs