HVH Industrial Solutions is an authorized distributor of SITI Power Transmission

SITI Products are 100% Italian-made. SITI has made the strategic business decision to manufacture everything inside the company, where they can maintain tight control of the entire manufacturing production. SITI Power Transmission USA is the American subsidiary of SITI Riduttori, SpA., a manufacturer of gearboxes, geared motors, and electro-mechanical drive technologies. The product offerings include worm, planetary, bevel-helical, helical gear, and mechanical variable speed drives. 

At HVH, we work closely with the Siti engineering team to provide superior customer service and engineering support.

Siti Literature: 

Worm Gear Reducers

Helical and Bevel Helical Gear Reducers

Variator Catalog


If you have any questions, write us via live chat (one of our team members will answer your questions), call, or send us a quote request. The HVH team is always ready to help you.


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About SITI Power Transmission USA

SITI Power Transmission USA is the American subsidiary of SITI Riduttori, SpA, a renowned manufacturer specializing in gearboxes, geared motors, and electro-mechanical drive technologies. SITI Riduttori SpA was founded in 1967 by Flippo Guerra in Bologna, Italy, and continues to thrive under the guidance of his family to this day. Offering an extensive array of cutting-edge products such as worm Gearboxes, planetary systems, bevel-helical mechanisms, helical gears, and mechanical variable speed Gearboxes, SITI caters to a wide range of industries. By leveraging the knowledge and experience of its parent company, SITI Power Transmission USA is able to offer cutting-edge drive technologies to its American customers.

SITI Product Offerings

SITI Power Transmission USA provides a wide range of gearboxes, geared motors, and electro-mechanical drive technologies. These products are designed to meet the diverse needs of various industries and applications. Let's explore the different types of gearboxes offered by SITI Power Transmission USA:

Worm Gearboxes

Worm Gearboxes are known for their compact size, high efficiency, and smooth operation. They are widely used in applications requiring high torque and low speed. SITI Power Transmission USA offers a variety of worm gearboxes suitable for different load capacities and operating conditions.

Planetary Gearboxes

Planetary Gearboxes are characterized by their high power density, precision, and versatility. These Gearboxes excel in applications that demand precise control and high efficiency. SITI Power Transmission USA's range of planetary gearboxes caters to a broad spectrum of industries, including robotics, machine tools, and automation.

Bevel-Helical Gearboxes

Bevel-helical gearboxes combine the advantages of bevel and helical gears, offering excellent torque transmission and smooth operation. They are widely used in heavy-duty applications that require high reliability and compact design. SITI Power Transmission USA's bevel-helical gearboxes are engineered to deliver optimal performance and durability.

Helical Gear Gearboxes

Helical gearboxes are renowned for their quiet operation, high efficiency, and versatility. They are utilized in a wide range of industries, including mining, construction, and material handling. SITI Power Transmission USA offers helical gearboxes that are engineered to withstand demanding operating conditions and deliver consistent performance.

Mechanical Variable Speed Drives

Mechanical variable speed drives enable precise control over the speed and torque of machinery. They find application in industries such as textiles, paper manufacturing, and printing, where speed regulation is essential. SITI Power Transmission USA provides mechanical variable speed drives that offer reliable and accurate speed adjustment capabilities.

Advantages of SITI Power Transmission USA

Reliability: SITI Power Transmission USA's products are engineered to deliver reliable performance, ensuring minimal downtime and increased productivity.

Innovation: The company stays at the forefront of drive technology advancements, providing customers with innovative solutions that meet the evolving needs of their industries.

Customization: SITI Power Transmission USA understands that each application has unique requirements. Therefore, they offer customization options to tailor their drive technologies according to specific customer needs.


SITI Power Transmission USA, the American subsidiary of SITI Riduttori, SpA., is a trusted provider of advanced drive technologies in the United States. With a diverse range of gearboxes, geared motors, and electro-mechanical drive technologies, the company caters to various industries and applications. By offering reliable, innovative, and customizable solutions, SITI Power Transmission USA ensures efficient power transmission and contributes to the success of its customers.