SIT

What SIT does

SIT S.p.A. is an Italian designer, manufacturer, and global distributor of mechanical power transmission and motion transmission components, headquartered in Cusago (Milan) and operating as a wholly-owned subsidiary of Gruppo Scaglia, an industrial conglomerate with origins dating to 1838. The company's product portfolio spans toothed belt drives in rubber and polyurethane, classical and narrow-section V-belts (including the maintenance-free SIT NEXT and FEM-optimized SIT TORQUE FLEX lines), chain drives, Poly-V belts, modular plastic conveyor belts (Modutech), transmission couplings including zero-backlash variants, friction-based shaft-hub locking assemblies (SIT-LOCK, including the MONOLOCK single-ring design), servo reducers distributed from Nidec-Shimpo (including the FlexWave elastic deformation reducer), bearings and pillow blocks, anti-vibration mounts, motor slide bases, and complementary installation tools such as the TEN-SIT 2.0 tension meter and LINE-LASER alignment tool.

SIT generates revenue through direct sales via its Italian offices (Cusago HQ, Bologna, Padova, Turin) and through six wholly-owned international subsidiaries that also serve as production facilities in Germany, France, Spain, Switzerland, the United States, China, and India, supplemented by independent distributors in uncovered markets (UK, Ireland, Austria, Holland) and the Nautilus e-sales platform for 24/7 online ordering with ERP integration. Customer segments include industrial machinery OEMs (primary), food and beverage processors (recently formalized via the October 2025 FOOD DIVISION launch), packaging and converting machinery manufacturers (UCIMA member), and agricultural equipment manufacturers. Pricing is determined through quotation-based B2B sales with technical sizing support, and the company provides online engineering calculation tools (SitDrive, SitCoupling) and CAD library access via TraceParts to embed products in customer design workflows.

The company maintains ISO 9001 quality certification (audited by DNV), ATEX certification for explosive atmospheres, and RoHS compliance, and operates with explicit exclusions in aerospace, nuclear, and offshore sectors. SIT has over 50 years of motion transmission heritage, holds numerous registered trademarks across proprietary product lines, and operates 7 production centers across 3 continents with a workforce of 101-250 employees.

Name

SIT

Legal name

SIT S.p.A.

Website

https://sitspa.it

Company type

Private

Founded year

1838

Operating status

Operating

Headcount range

101–250 employees

Short description

SIT S.p.A. is an Italian designer, manufacturer, and global distributor of mechanical power transmission components (belts, chains, couplings, locking assemblies, servo reducers) serving industrial machinery OEMs across food processing, packaging, agricultural, and general industrial segments via 7 production centers and 6 international subsidiaries.

Ownership category

akta.pro rank

Product category

Mechanical Power Transmission Components

NAICS

Mechanical Power Transmission Equipment Manufacturing (333613)

SIC

Bolts, Nuts, Screws, Rivets & Washers (3452)

akta.pro primary industry

Gearmotors, Gearboxes & Speed Reducers (IMAGACAF)

Keywords

• Power transmission components
• Industrial drive belts
• Motion transmission systems
• Timing belts drives
• Mechanical power transmission

Headquarters

HQ city

Milan

HQ country

Italy

HQ region

Europe

Offices12 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Power Transmission Components Sales: Sale of mechanical power transmission components including timing belts, V-belts, polyurethane belts, chain transmissions, modular belts, coupling transmissions, and locking assemblies. Products are sold directly and through distribution network worldwide.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

SIT S.p.A. develops, engineers, produces, and distributes high-quality power transmission components and motion transmission solutions — including toothed belts (rubber and polyurethane), V-belts (SIT NEXT, SIT TORQUE FLEX), chain drives, modular belts, transmission couplings, SIT-LOCK shaft-hub locking assemblies, and Nidec-Shimpo servo reducers — for industrial machinery manufacturers worldwide, complemented by tensioning/alignment tools (TEN-SIT, LINE-LASER), online sizing tools (SitDrive, SitCoupling), and a dedicated food-industry product range (ELAClean).

Product overview

SIT S.p.A. is a manufacturer and global distributor of mechanical power transmission components, structured as a single-member company (Società Unipersonale) headquartered in Cusago, Italy. The product portfolio centers on mechanical drive components including toothed belts in rubber and polyurethane, V-belts (classical and narrow section, including the SIT NEXT maintenance-free and SIT TORQUE FLEX optimized-profile lines), chain drives, Poly-V belt drives, flat belt drives (Nitta), modular belts and chains (Modutech), transmission couplings (including zero-backlash models), shaft-to-hub locking devices (SIT-LOCK line, including the MONOLOCK single-ring design), servo reducers (Nidec Shimpo, including the FlexWave zero-backlash elastic-deformation reducer), and bearing supports (Asahi). Complementing the component range, SIT offers tensioning and alignment tools (TEN-SIT belt tension meter, LINE-LASER pulley alignment tool), motor slide bases, anti-vibration mounts (Sit-Paulstra), and clamping plates and flanges. An online tool suite (SitDrive, SitCoupling, Nautilus e-sales, and Nidec-Shimpo selection software) supports drive sizing, CAD drawing access, and 24/7 online ordering. A dedicated FOOD DIVISION (launched October 2025) serves the food industry with specialized ELAClean belts, modular belts, and plastic supports. Production spans 7 centers across 3 continents (Italy, Germany, France, Spain, China, India), supported by ISO 9001 (DNV) and ATEX/RoHS certifications.

Differentiator

Problem solved

Functional benefit

Brands

• SIT-LOCK: Locking devices (calettatori) for shaft-hub connections, produced for over 30 years for friction-based shaft-hub connections.
• SIT Drive Solutions
• DIVISIONE FOOD

Products and services

• Rubber Toothed Belt Drives (Trasmissioni a cinghia dentata) Rubber toothed belt drives providing synchronized motion and high torque capacity for industrial machinery power transmission. Targeted at industrial machinery manufacturers requiring precise drive synchronization.
• Polyurethane Toothed Belt Drives (Trasmissioni a cinghia in poliuretano) Polyurethane toothed belt drives offering flexibility, chemical resistance, and suitability for specialized industrial applications (ELATECH line). For industrial machinery OEMs in chemical, food, and precision applications.
• V-Belt Drives (Trasmissioni a cinghia trapezoidale) — incl. SIT NEXT and SIT TORQUE FLEX lines Classical and narrow-section V-belts including the SIT NEXT (maintenance-free, EPDM) and SIT TORQUE FLEX (FEM-optimized tooth profile) lines for industrial power transmission. For industrial machinery manufacturers requiring durable, low-maintenance drives.
• Chain Drives (Trasmissioni a catena) Roller chain drives for power transmission in industrial machinery requiring robust, high-load capacity. For heavy-duty industrial machinery manufacturers.
• Poly-V Belt Drives Poly-V (serpentine) belt drives offering compact design and high speed capacity for industrial applications. For industrial machinery OEMs requiring compact, high-speed drive solutions.
• Flat Belt Drives — Nitta brand (Trasmissione a cinghia piana Nitta) Flat belt drives distributed under the Nitta brand for industrial power transmission applications. For industrial machinery OEMs.
• Transmission Couplings (Giunti di trasmissione) — incl. zero-backlash models Shaft-to-shaft transmission couplings including zero-backlash (gioco zero) models connecting motors to driven equipment with precision and vibration damping. For industrial machinery OEMs requiring precise, low-vibration motor-to-load coupling.
• SIT-LOCK Locking Assemblies (Sistemi di calettamento) — incl. MONOLOCK Friction locking assemblies (shaft-to-hub connectors), including the MONOLOCK single-ring design with quality 12.9 screws, creating pressure between shaft and hub through screw tightening. For industrial machinery OEMs and maintenance teams.
• Nidec-Shimpo Servo Reducers (Servo riduttori) Planetary servo gearboxes and the FlexWave zero-backlash elastic-deformation reducer (compact, low inertia) distributed by SIT, covering precision motion-control applications. For machinery OEMs requiring precision servo motion control.
• Modutech Modular Belts (Nastri modulari) Modular plastic conveyor belts and chains for product handling and transport in food, packaging, and industrial processing lines. For food processing, packaging, and industrial conveyor-system builders.
• Bearings and Pillow Blocks (Supporti e snodi) Bearings and pillow-block assemblies (distributed Asahi brand) providing mounting solutions for rotating shafts in industrial power-transmission systems. For industrial machinery OEMs.
• TEN-SIT 2.0 Belt Tension Meter Electronic belt-tensioning instrument measuring belt vibration frequency to determine correct belt tension. Features a flexible-arm microphone with noise-filtering capability, sensitivity range 8–600 Hz. For maintenance technicians and installers of belt drives.
• LINE-LASER Pulley Alignment Tool Laser-based pulley-alignment instrument for verifying perfect parallel and angular alignment of drive pulleys, reducing belt, pulley, and bearing wear. For maintenance technicians and machinery installers.
• Motor Slide Bases (Slitte tendicinghia) — COMPACTA, VAREX, LINEA, TV909/910, TB911 Motor slide bases (COMPACTA, VAREX, LINEA, TV909/910, TB911 types) enabling quick belt tensioning without disturbing pulley alignment. For machinery OEMs and maintenance teams.
• Sit-Paulstra Anti-Vibration Mounts (Antivibranti) Elastomeric vibration dampeners isolating noise, shocks, and vibrations in machines and plants; available in radial, axial, constant-frequency, and low-frequency (high axial elasticity) variants. For industrial machinery OEMs and plant builders.
• SIT Divisione FOOD (Food Division) Dedicated division serving the food industry with ELAClean polyurethane belts, modular belts (Modutech), and plastic supports, backed by food-industry professionals for customized solutions and the quality and safety standards consistent with SIT's broader portfolio. For food processing and packaging machinery builders and processors.
• SitDrive Online Calculation Tool Web-based calculation tool for rubber and polyurethane belt drive design and sizing, enabling customers to specify and order the correct belt drive online. For engineers and design specifiers at industrial machinery OEMs.
• SitCoupling Online Calculation Tool Web-based calculation tool for direct transmissions with coupling joints, enabling customers to specify and order the correct coupling online. For engineers and design specifiers at industrial machinery OEMs.
• Nautilus E-Sales Platform E-commerce platform accessible at nautilus.sitspa.it for inventory consultation and 24/7 order placement, including ERP integration capability for existing customers. For SIT's existing industrial customers.

Quantifiable outcome

• Reduced machine downtime through maintenance-free products
• +2 more outcomes

Named customers3 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Eight partnerships are on record, tiered minor and core.

• Cerved GroupminorOthers · 20 June 2023Cerved Group conducted customer satisfaction survey on behalf of SIT, resulting in CSA (Customer Satisfaction Award) recognition as a 'Virtuous Company' attentive to customer feedback.
• Quine Business Publisher and TracePartsminorGTM or Marketing Partner · 18 January 2022SIT is official sponsor of Progettistapiù, a digital conference on industrial design systems and components organized by Quine Business Publisher and TraceParts. Event held January 25-28, 2022 with 25 streaming sessions.
• UCIMAminorOthers · 29 April 2020SIT is an associate member of UCIMA (Unione Costruttori Italiani Macchine Automatiche per il Confezionamento e l'Imballaggio), the national trade association representing Italian manufacturers of packaging and wrapping machinery. UCIMA groups over 100 companies representing the sector.
• Gruppo ScagliacoreStrategic or Co-development Partner · 1 January 1838Parent company Gruppo Scaglia has operated since 1838, providing long-term stability and investment capacity for SIT's power transmission business. The group has continuously invested in R&D, defining the reference environment for the future.
• A2A GroupminorOthersReferenced in SIT-A2A-2026.pdf document. Nature of partnership not clearly specified in available source material.
• TracePartscoreTechnology or IntegrationIntegration partnership for CAD drawing downloads. SIT products are available in TraceParts catalog, allowing engineers to access and download CAD drawings for standard catalog components including SIT-LOCK locking assemblies.
• Nidec-ShimpocoreTechnology or IntegrationSIT distributes Nidec-Shimpo servo reducers as part of its product portfolio. Provides online selection tool for Nidec-Shimpo planetary gear reducers including FlexWave elastic deformation reducers.
• DNV (Det Norske Veritas)minorOthersDNV provides ISO 9001 quality management certification for SIT's production processes. Certificate available on company website.

Scale indicators7 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Gates Industrial: Global leader in power transmission belts, hoses, and fluid power with a comprehensive industrial belt and coupling portfolio. Directly comparable to SIT across belts, couplings, and locking elements, but at meaningfully larger scale and global reach.
• Hutchinson (TotalEnergies): Major European manufacturer of belts, anti-vibration, and fluid transfer systems for industrial and automotive markets. Compares to SIT's belt and antivibration (Paulstra-distributed) offerings at substantially larger scale.
• Continental ContiTech: Industrial rubber and polymer power transmission specialist (V-belts, timing belts, conveyor belts) under the Continental umbrella. Competes head-to-head with SIT's belt portfolio in OEM and replacement channels globally.
• Fenner Precision (Michelin): Industrial power transmission belt and polymer products business operating within the Michelin Group. Competes with SIT's belt portfolio in packaging, food processing, and general industrial applications.
• Mitsuboshi Belting: Japanese manufacturer of industrial power transmission belts, conveyor belts, and transmission systems with global sales. Overlaps with SIT across V-belts, timing belts, and polyurethane belts serving industrial OEMs.
• Bando Chemical Industries: Japanese manufacturer of power transmission belts, conveyor belts, and industrial rubber products. Direct overlap with SIT's V-belt and timing belt offerings, particularly for packaging and automation OEM customers.
• Carlisle Industrial Belts: Established manufacturer of industrial V-belts, synchronous (timing) belts, and timing pulleys. Overlaps directly with SIT's core toothed belt, V-belt, and pulley/flange product lines serving OEMs and MRO channels.

Direct peers

• Optibelt: German family-owned manufacturer of high-performance V-belts, timing belts, and polyurethane belts for industrial power transmission. Directly comparable to SIT in product range, customer verticals, and mid-sized European manufacturer profile.
• Nitta Corporation: Japanese industrial belt and polyurethane product manufacturer. SIT already distributes Nitta flat belts, and the two companies compete and co-exist in polyurethane belt applications for industrial machinery.
• Megadyne (Ammega Group): Italian-headquartered global manufacturer of industrial belts and power transmission products. Strong direct overlap with SIT in rubber and polyurethane belts, with broader product breadth and global manufacturing footprint.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/@SITSPA
• LinkedInlinkedin.com/company/sit-spa

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries9 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about SIT