SITI supplier in Romania
Gearboxes and mechanical variators for industrial transmissions
Founded in 1967 · Headquarters: Valsamoggia, Italy
Who is SITI and what does it make?
SITI is an Italian manufacturer of gearboxes, mechanical variators and electric motors, founded in 1967 in Casalecchio di Reno and later moved to Valsamoggia, near Bologna. The range covers worm gearboxes, helical and bevel gearboxes, planetary gearboxes and mechanical speed variators, used to drive conveyor belts, mixers and packaging lines. From the SITI portfolio we can quote both individual replacement units and complete gear motors for new installations.
SITI has a range structured by product family: I-MI, U-MU and MD series for worm gearboxes, NHL, BH, RP2, R, SR, PD and PL series for gear-wheel gearboxes, the NRG series for planetary gearboxes and the K-MK series for mechanical variators. The company holds ISO 9001:2015 certification for quality management; the availability of versions for explosive atmospheres is confirmed by model.
For installations in Romania, SITI gearboxes are suited to packaging lines, car washes, wastewater treatment plants or food industry machinery.
What do we supply from the SITI range?
| Product | Description |
|---|---|
| Worm Gearboxes, I-MI, U-MU and MD Series | Worm wheel gearboxes for high reduction ratios in a compact size, used to drive conveyor belts, mixers and packaging machinery where installation space is limited. The series differ in size and maximum permitted torque, with mounting options in any position. Available with a direct input shaft or with an electric motor attached, for lines that do not need a separate gear motor. |
| Gear-wheel Gearboxes, NHL, BH, RP2, R, SR, PD, PL Series | A broad family of coaxial and right-angle gearboxes, with cylindrical or bevel gears, for higher efficiency than worm units at the same power. Used in mining, wastewater treatment and ice production, where continuous operation and low maintenance matter more than compact size. The series cover different power ranges and mounting configurations, chosen according to the application. |
| NRG Series Planetary Gearboxes | Planetary gearboxes for high torques in a small size, suited to drives with limited space or where low angular backlash is required. Coaxial construction, with direct mounting on the driven shaft or through a coupling, frequently used on process machinery where positioning accuracy matters. |
| K-MK Series Mechanical Variators | Mechanical speed variators for continuous speed adjustment without an electric inverter, useful on lines where speed variation must be done manually or where an inverter would be too costly for the application. They are usually installed together with a gearbox from the same range to obtain the final speed range wanted. |
| HFP and FCW Series Electric Motors | Asynchronous electric motors used as the drive for SITI gearboxes, available in standard versions for direct mounting on the gearboxes in the range. They complete the offer so that a complete gear motor can be supplied as a single assembly, already coupled and checked, instead of being assembled separately by the customer. |
Why SITI?
- A range of gearboxes — worm, gear-wheel, planetary and mechanical variators, all from the same range
- ISO 9001:2015 certification for quality management
- ISO 9001:2015 certification for quality management in design and manufacturing
- Over 55 years of experience in mechanical power transmission
Which SITI codes and series are requested most often?
| Code | Description |
|---|---|
| I-MI | I-MI series worm gearbox for general-purpose transmissions |
| U-MU | U-MU series worm gearbox with universal mounting |
| MD | MD series compact worm gearbox |
| NHL | NHL series helical gear gearbox |
| BH | BH series gear-wheel gearbox |
| RP2 | Shaft-mounted (pendulum) gearbox, from the RP family |
| Seria R | R series coaxial gear-wheel gearbox |
| SR | SR series gear-wheel gearbox |
| PD | PD series gear-wheel gearbox, parallel shaft mounting |
| PL | PL series gear-wheel gearbox |
| NRG | NRG series planetary gearbox for high torques |
| K-MK | K-MK series mechanical speed variator |
| HFP | HFP series electric motor for industrial drives |
| FCW | FCW series electric motor for industrial drives |
Where is SITI equipment used?
- Food industry — driving conveyor belts and mixers in processing lines
- Mining — gearboxes for conveyors and ore processing plants
- Packaging — gear motors for product packaging lines
- Ice production — drives for industrial ice-making machinery
- Wastewater treatment — gearboxes for scrapers and mixers in treatment plants
- Car washes — gear motors for rotary brushes and conveyor belts
- Ceramics — gearboxes for ceramic tile production lines
How do we supply SITI in Romania?
What we know about SITI comes from the manufacturer's technical documentation, and what does not appear there we do not invent in a quotation. We source gearboxes to order through EU supply channels, usually within 1–4 weeks of confirmation. For a precise quotation please send the type of gearbox sought — worm, gear-wheel or planetary — the transmission ratio wanted and, for a replacement, the nameplate of the existing unit. Availability for each SITI series is checked individually with the supplier before confirmation.
Lead times for special gearbox configurations (non-standard ratios or custom flanges) depend on the factory in Italy and we state them in the quotation.
Frequently asked questions about SITI
What is the difference between SITI NHL series and BH series gearboxes?
The correct choice depends on the installation space and on the torque required by the industrial application.
Do you supply SITI Riduttori gearboxes in Romania to order?
Yes, we source worm, gear-wheel or planetary gearboxes from the SITI range to order, starting from the exact code of the series wanted. We do not have our own shelf stock of this range; made to order, usually 1–4 weeks from order confirmation (Siti). It helps to specify the torque required, the reduction ratio and the mounting type wanted.
What should I specify for a quotation on a SITI gearbox?
We need the power of the driven motor, the reduction ratio wanted and the mounting position: coaxial, right-angle or parallel. The type of load also matters, constant or with frequent shocks, because it influences the choice between general-purpose series and planetary ones such as NRG. A drawing or sketch of the application speeds up preparation of the correct quotation.
What is the K-MK series from SITI?
K-MK is the series of mechanical speed variators in the SITI range, used for continuous adjustment of output speed without additional electronic components. It is often installed in lines where speed must be adjusted manually or automatically, depending on the technological process. It is a mechanical alternative to electronic frequency variators in certain industrial applications.
How do I request a SITI quotation?
Send the SITI code from the nameplate and the quantity; we reply in English with availability and the lead time written in the quotation.
Request a quoteUpdated: 12 November 2026 · Sources: SITI, SITI S.p.A. (manufacturer documentation)