About SITI Power Transmission USA, Inc.

SITI Power Transmission USA, is the American subsidiary of SITI Riduttori, SpA., a manufacturer of gearboxes, geared motors and electro-mechanical drive technologies. Our headquarters and manufacturing facilities are located in Bologna, Italy, where the company was founded in 1967, by Flippo Guerra, and where his family still run’s the business today. Our wide range of products include worm, planetary, bevel-helical, helical gear, and mechanical variable speed drives. Our global commercial network, high product quality and flexible structure make SITI a leader in many industries, including food, water, automotive, packaging, material handling and logistics.

Our Corporate Philosophy

SITI Products are 100% Italian made. SITI has made the strategic business decision to manufacture everything inside our company, where we can maintain tight control of the entire manufacturing production. Unlike other brands, we do not outsource its production. By controlling the manufacturing process, we are able to achieve a level of value and quality that exceeds market expectations. We focus on supplying solutions tailored for the customer, thus becoming a partner rather than a supplier. These strategic choices has enabled us to both hope our customers grow, while strengthen our commercial relationships.

We hold the following certifications which demonstrate our commitment to excellence:

  • Conformance to the System of Quality Management, in relation to the UNI EN ISO 9001:2015 standard
  • System of Environmental Management in relation to the UNI EN ISO 14001:2004 standard

We’re near completing the qualifications to receive certification for:

  • System for the Safety Management in relation the OHSAS 18001:2007 standard

Commitment to Quality

Our Products

Despite the fact the gearbox may be considered a mature product, innovation still plays a primary role in the development and continued improvement of our product lines. We are constantly researching new materials, emerging technologies and customized solutions in order to provide our clients with top quality products that can be customized to their needs. The technology that we use in production allows us to offer custom solutions, quality products, efficient manufacturing practices and competitive pricing.

In addition to this, SITI has created strategic partnerships to stay at the forefront of the gearbox industry. We’ve partnered with not only Research Institutes, but even with other companies that develop precision mechanics to collaborate, develop and implement new techniques and strategies. By staying on top of emerging solutions we are positioned to offer unique solutions for applications in the renewable energy and waste recycling industries.

Worm Gearboxes

The I & U Series Worm gear reducers deliver a cost effective solution for OEM’s, while delivering superior reliability to the end user. Their rigid cast aluminum housings (up to size 110) are light weight, maintenance free, quiet and efficient. The modular design allows for multiple bolt-on components to customize for your application, including; helical input, double worm combinations, multiple output flanges per size, torque arm, shaft covers, and single & double output shafts.

Planetary Gearboxes

The NRG Planetary gearbox combines high performance, compact size, long life, and excellent value. It is the ideal choice for heavy duty, high shock load applications and is available in-line or right angle. It’s modular design is fully configurable with options for  mounting, with both male or female versions for space saving shaft mounting, or direct coupling to the machine. 

Helical & Bevel-Helical Gearboxes

The BH right-angle, NHL Inline helical and PD Parallel helical series gearboxes provide efficiency over 90% in both torque directions, at all input speeds, and are interchangeable with many brands.. The modular gear system offers an extremely wide range of ratios, achieved through 2-, 3- or 4-stage versions offering reliability, robustness, and wide output torque range. The modular design allows for multiple bolt-on components to customize for your application, including; helical input, double worm combinations, multiple output flanges per size, torque arm, shaft covers, and single & double output shafts.

Mechanical Variable Speed

Mechanical variable speed offers quiet, reliable, speed variation, when inverter is not an option. No complicated electrical wiring, no wash-down problems, no complicated manual to study. It comes in 7 Sizes, with over 200 different design configurations. Output speeds can be brought to ZERO. Standard output flanges allow easy mounting to your existing gearbox or motor.

Special Gearboxes

Special and custom gearbox and gearmotor solutions that meets application requirements is important to ensure safe, reliable and efficient operation of your equipment. SITI manufactures custom gearboxes to meet unique applications. Our engineering team offers complete support from inception to completion. With more than 50 years of experience, our experts will design are here to work with your design and engineering teams to create the perfect gearbox for your needs.

Contact Us

We’re here to answer your questions and provide the information you need to know.

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