large industrial

Large Industrial Gearboxes

Sumitomo's Large Industrial Gearboxes feature custom-engineered speed reducers for your demanding heavy-industrial applications. We're the gearbox manufacturer you need. 

The widest range of standard cataloged large industrial gearboxes on the market.

Powered by a robust, proven design, Paramax Large Industrial Gearboxes & Speed Reducers are rugged, flexible, and economical to operate. A wide range of options is available at a reasonable cost, allowing quick shipping. 
With Hansen Large Industrial Gearboxes & Speed Reducers, you can find the perfect solution for even your most demanding applications. The Hansen vertical gearbox offers the best features required for heavy-duty and long-running applications.  

Paramax Industrial Gearboxes

Paramax® parallel and right-angle drives are some of the largest and most durable power transmission systems operating in the world. The series features double, triple, and quadruple reduction gearboxes, global standardization, availability, and support from our worldwide facilities.

Optional accessories: Backstops, Motor Mount Options, Seal Upgrades, Heating & Cooling, and Lubrication Solutions, Paint Upgrades, Storage and Packaging Options, and Complete Drive Package Solutions


Hansen Industrial Gearboxes

Hansen industrial gearboxes are market-leading in quality and technology, excelling in reliability and durability. The rugged housing, along with our commitment to innovating state-of-the-art technology, provides remarkable power and performance


Specialty Large Industrial Gearboxes

For non-standard gearing and custom ratios, we offer special customized units to fit in any application. From custom paint to intricate gearbox lubrication systems, our team of engineers will make sure all of your custom gearbox needs are met



Why Choose Sumitomo as Your Large Industrial Gearbox Supplier?

The Sumitomo Manufacturing Standard

We ask the right questions to ensure you have the correct large industrial gearbox for your specific application. Customer experience is our top priority, and we want to ensure that our customers can get the modifications or custom options they desire. Our Paramax® and Hansen brands offer the widest range of large industrial gearboxes on the market. Historically, we have supplied products that have outperformed our competition in the toughest of industries, such as forestry, steel, and mining. With a reduced average lead time, sizeable domestic inventory, and a staff of specialized engineers and manufacturers, customers are able to select from a wide range of products and options to solve their toughest problems.

The Right Gearbox or Gear Reducer for the Right Job

Standard large industrial gearboxes are pre-engineered and manufactured to be assembled from our inventory. Local engineering, manufacturing, and assembly allow us to customize these products to meet your needs. Our large gearboxes also have various upgrades and performance monitoring products to keep each gearbox in action. By following our preventative maintenance procedures, you ensure your gearbox lives a long life. If your gearbox has an issue, our experienced network of aftermarket experts is always available. Plus, with one of the longest warranties in the gearbox industry, your major operation is well protected.

If you ever have any questions regarding ordering our large industrial gear drives, CAD drawings, quotes, and more--please contact us.

Retro-Fit and Drop-In Gearboxes & Gear Reducers

Whatever your requirements, we have a solution for you. Sumitomo Drive Technologies offers customized gearbox bases that allow our units to match the footprint of an array of existing applications and drop-in a unit to upgrade, replace and remove competitor gear boxes. With a wide range of options, our engineers can replace your unit with minimum impact on your application while delivering a premier product with performance and reliability.


Retrofitted Industrial Gearbox Replacement

With a custom transition base, the new low-speed shaft will be positioned exactly where the original low-speed shaft was. Compared to a standard gearbox, retrofitting with our large gearboxes provides maximum cost savings with minimal on-site modifications to your application. 

This option typically requires just relocating the motor mount. In order to minimize the impact of relocating the motor mount, we offer motor mounting options, such as flanged motor adapters for c-face and d-flange motors. 

Other options might include low-speed shafts with specific diameters or lengths and motor lanterns. In the diagram, the red circles indicate the existing bolt pattern of a customer's large gearboxes. Transition bases are made to match machine shaft height, ensuring that the low-speed shaft is aligned with the machine shaft.  

retrofit industrial gearbox
Drop-In Industrial Gearbox Replacements

Because downtime is such an important factor for your business, let us install a custom drop-in unit. Installation-ready units are designed to seamlessly integrate into existing applications. We understand that on-site modifications or reengineering your system isn't always an option. 

These stress-free units can have your application back up and running in no time. Custom gearing and shafting, fabricated steel housings, and more are all available. Same footprint, same shaft positions; it will literally drop into place. 

Drop-In Industrial Gearbox Replacements

Where Are Our Large Industrial Gearboxes Manufactured?


Verona Large Industrial Gearbox Manufacturing Facility
Verona Gearbox Manufacturing Facility

Our industrial gearbox facility is tucked along the industrial corridor of I-81 in the picturesque Shenandoah Valley of Virginia. This purpose-built facility was designed to efficiently handle the inventory, machining, assembly, quality control, and testing for our entire line of industrial gearboxes in the United States.


Purpose-Built Facility
Optimized to build over 100 large industrial gearboxes a month. There’s little we can’t handle.

On-Site Machining Capabilities
With a full-service machine shop at our disposal, we keep costs and lead times down.

Dedicated Distribution Center
With centralized inventory to support the Western Hemisphere, we’ve got you covered.

Rigorous Standards
American Made. ISO 9001 certified. Member of AGMA, PTDA, CSA, EASA. We don’t compromise