Zambello Group

What Zambello Group does

Zambello Group is an Italian family-owned precision manufacturer founded in 1957 by Zevio Zambello in Castellanza, Varese province, and now run by his sons Elio and Alessandro. The group designs and manufactures helical reduction gearboxes for plastic extrusion and injection moulding machinery, claiming world-leadership in this narrow industrial segment with more than 50,000 gearboxes installed globally across plastics, packaging, feed/biofuel, and chemical/petrochemical processing applications.

The product portfolio is organized by extruder type and performance tier: ZPE series for single-screw extruders across screw diameters from 25mm to 400mm; ZT, TST, TST-H and TST-2H series for co-rotating twin-screw extruders with torque densities up to 22.5 Nm/cm³ per shaft and output speeds to 1,800 rpm; NRB, ZT3, TST-H and TST-2H variants for counter-rotating parallel twin-screw extruders; ZC3 series for counter-rotating conical twin-screw extruders; and MNP3 series gearboxes for injection moulding machines with over 95% efficiency. All gears are ground to AGMA 11 / DIN 3 class and manufactured in Italy to AGMA 2101 C95 standards using proprietary production systems (ZPS) built around multi-pallet CNC machining centers and automated warehousing. The Industry 4.0 product ZMS provides real-time monitoring of gearbox parameters for predictive maintenance.

Revenue is generated through B2B enterprise field-sales of hardware gearboxes to extrusion line OEMs, complemented by an aftermarket stream of spare parts (50,000+ active component codes) and technical service distributed via direct Italian sales plus a global network of subsidiaries (USA, Canada) and authorized channel partners covering 13+ countries. Manufacturing is concentrated at two Italian plants (Magnago headquarters and Lendinara, the latter with ~154,000 sqm total / ~24,500 sqm covered area), with a new ~10,000 sqm production facility and HQ under construction in Lonate Pozzolo. The company holds ISO 9001 certification and was the first Italian recipient of the Reifenhäuser Best Supplier award.

Name

Zambello Group

Legal name

Zambello Riduttori srl

Website

https://zambello.it

Company type

Private

Founded year

1957

Operating status

Operating

Headcount range

11–50 employees

Short description

Zambello Group is an Italian family-owned manufacturer founded in 1957 that designs and produces high-precision helical reduction gearboxes for plastic extrusion and injection moulding machinery. It sells globally to extrusion line OEMs through direct subsidiaries and exclusive country representatives.

Ownership category

akta.pro rank

Product category

Industrial Gearbox Manufacturing

NAICS

Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing (333612), All Other Miscellaneous General Purpose Machinery Manufacturing (333998), Industrial Machinery Manufacturing (33324)

SIC

Misc Industrial & Commercial Machinery & Equipment (3590), General Industrial Machinery & Equipment (3560)

akta.pro primary industry

Gearmotors, Gearboxes & Speed Reducers (IMAGACAF)

akta.pro secondary industry

Linear Motion & Mechanical Power Transmission (Ball/roller screws, linear guides, bearings, couplings) (IMAHAGAM)

Keywords

• Extruder gearboxes
• Helical reduction gearboxes
• Twin-screw extruder drives
• Injection moulding gearboxes
• Industrial gearbox manufacturing

Headquarters

HQ city

Magnago

HQ country

Italy

HQ region

Europe

Offices16 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Gearbox Manufacturing and Sales: Design, manufacture, and sale of high-quality helical gearboxes for Single screw extruders, Corotating twin screw extruders, Counter-rotating twin screw extruders (parallel and conical), and Injection moulding machines. Revenue generated from equipment sales with consulting and after-sales service support.
2. Aftermarket Services and Spare Parts: Qualified assistance through automatic warehouse with tens of thousands of components always ready for shipment worldwide, providing spare parts and technical support services.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels3 records

Core offering

Zambello Group designs, manufactures, and sells high-precision helical reduction gearboxes dedicated to the extrusion field. Its product portfolio covers single-screw extruder gearboxes, co-rotating and counter-rotating (parallel and conical) twin-screw extruder gearboxes, and gearboxes for injection moulding machines, all entirely manufactured in Italy at its Magnago and Lendinara facilities under ISO 9001 and AGMA 2101 C95 standards. The group complements its hardware offering with proprietary Industry 4.0 systems (ZMS monitoring and ZPS production automation) and aftermarket spare-parts services through automated warehouses.

Product overview

Zambello Group is a world-leading manufacturer of high-quality gearboxes for the extrusion industry, producing exclusively in Italy since 1957. The company offers a comprehensive portfolio of gearbox solutions: single-screw extruder gearboxes (ZPE series), co-rotating twin-screw extruder gearboxes (ZT, TST, and TST-HD series), counter-rotating parallel twin-screw extruder gearboxes (NRB, ZT3, TST-H, and TST-2H series), counter-rotating conical twin-screw extruder gearboxes (ZC3 series), and injection moulding machine gearboxes (MNP3 series). The Industry 4.0 offering includes the ZMS (Zambello Monitoring System) for real-time gearbox health monitoring and the ZPS (Zambello Production Systems) for advanced manufacturing automation. Special custom gearboxes and mechanical components (via subsidiary Zamec) round out the portfolio. The group operates manufacturing facilities in Magnago (headquarters) and Lendinara, with over 50,000 gearboxes installed worldwide.

Differentiator

Problem solved

Functional benefit

Brands

• ZMS – Zambello Monitoring System: Electronic device for real-time monitoring of gearbox operating parameters including temperature, vibrations, pressure, and oil level
• ZPS – Zambello Production Systems
• ZPE Series
• ZT Series
• TST Series
• MNP3 Series
• NRB Series
• ZC3 Series

Products and services

• ZPE Series Gearboxes for Single-Screw Extruders High-performance helical gearboxes for single-screw extruders spanning screw diameters from 25mm to 400mm and reduction ratios from i=2 to i=125. Designed for extrusion line manufacturers producing blow film, cast film, pipe and profile, sheet, compounding, masterbatch, and recycling lines.
• ZT Series Gearboxes for Co-rotating Twin-Screw Extruders Gearboxes for co-rotating twin-screw extruders with torque density up to 14 Nm/cm3 per shaft and center distances from 24mm to 200mm, designed for OEMs of compounding, masterbatch, and recycling extrusion lines.
• TST (Twin Super Torque) Series Gearboxes for Co-rotating Twin-Screw Extruders High-performance gearboxes for co-rotating twin-screw extruders with a torque distribution system enabling output speeds up to 1,800 rpm and torque density up to 16 Nm/cm3 per shaft. Center distances from 20mm to 120mm.
• NRB and ZT3 Series Gearboxes for Counter-rotating Parallel Twin-Screw Extruders Horizontal (NRB) and vertical (ZT3) gearboxes for counter-rotating parallel twin-screw extruders with torque density up to 17 Nm/cm3 per shaft and reduction ratios up to i=80, available with belt/pulley or elastic coupling motor connections.
• TST-H and TST-2H Series Gearboxes for Counter-rotating Twin-Screw Extruders High-torque counter-rotating twin-screw extruder gearboxes with torque density up to 20 Nm/cm3 per shaft (TST-H, single reversing unit) and up to 22.5 Nm/cm3 per shaft (TST-2H, double reversing unit). Reduction ratios i=14 to i=80. Designed for the most demanding extrusion applications in plastics, feed, and biofuel processing.
• ZC3 Series Gearboxes for Counter-rotating Conical Twin-Screw Extruders Gearboxes for counter-rotating conical twin-screw extruders featuring ground conical gears manufactured to AGMA 2015 / DIN 4 class. Available in vertical and horizontal versions for PVC profile and pipe extrusion lines.
• MNP3 Series Gearboxes for Injection Moulding Machines Gearboxes for plasticising screws in injection moulding machines, transmitting high torques at very high input speeds (compatible with motors exceeding 3,000 rpm) with low noise and overall efficiency over 95%. Ground gears to AGMA 2015 / DIN 4 class.
• ZMS - Zambello Monitoring System Electronic monitoring system that tracks gearbox operating parameters including vibration, lubricating oil condition, temperature, and pressure in real time, enabling predictive maintenance and preventing breakages due to overloads. Industry 4.0 offering sold with Zambello gearboxes.
• ZPS - Zambello Production Systems Advanced proprietary production automation systems implemented in Zambello factories, featuring CNC machining centers with up to 64 pallets and 1,200+ tools, automated warehouses managing 50,000+ active component codes, and AGMA-compliant gear manufacturing under AGMA 2101 C95 standards.
• Special Application Gearboxes Custom-designed gearboxes for special extrusion and mixing applications, engineered and manufactured according to specific customer requirements.
• Mechanical Components for Extrusion Systems (Zamec) Inlet nozzles, feeding flanges, and other mechanical components for single and twin-screw extrusion systems, produced by wholly-owned subsidiary Zamec srl.

Quantifiable outcome

• 50,000+ gearboxes installed worldwide in various production environments
• +3 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

Feature5 records

Partnerships

13 partnerships are on record, tiered core and minor.

• STUPPI ENGINEERING GmbHcoreChannel Partner/ Reseller/ DistributorAuthorized representative for Germany, Austria, and Switzerland. Located at Im Eichacker 6, D-66629 Freisen. Contact person: Mr. Tim Stuppi.
• WTS-WAPF TECHNOLOGICAL SOLUTIONS S.L.coreChannel Partner/ Reseller/ DistributorAuthorized representative for Spain. Located at Calle Mas Coll, 19, E 08328 Alella (BCN). Contact person: Mr. Christopher Wapf.
• ANDANTEX LTDcoreChannel Partner/ Reseller/ DistributorPrecision engineering solutions representative for Great Britain. Located at Unit 3B, Lythalls Lane Industrial Estate, Coventry, CV6 6FL. Contact person: Mr. Phil Spencer.
• ENCE GmbHminorChannel Partner/ Reseller/ DistributorRepresentative for Russia. Located at 105082 Moscow, Malaya Pochtovaya str. 10. Commercial director: Mr. Sergey V. Uvarov.
• ADEN ENDÜSTRÝYEL ÜRÜNLER SAN. VE DIÞ TÝC. LTD.minorChannel Partner/ Reseller/ DistributorRepresentative for Turkey. Located at Ý.O.S.B. Triko Center Sanayi Sitesi M-3 Blok No 58 P.K 34294 Ýkitelli / Ýstanbul. Contact person: Mr. Hakan Dogusoy.
• Zambello USAcoreChannel Partner/ Reseller/ DistributorDirect subsidiary in the United States. Located at 35 Verona Ave., Newark, New Jersey 07104. Contact: Morris Schlesinger, Phone (973) 696-4330.
• ZAMBELLO CANADAcoreChannel Partner/ Reseller/ DistributorDirect representation in Canada. Office at 22 A Alessia Crt., Richmond Hill, Ontario L4B 3Z5. Tel: +1 416 417 7895.
• ZAMER Asia Ltd.coreChannel Partner/ Reseller/ DistributorRepresentative for Taiwan. Located at No. 126-2, Silin Rd., Yanchao Dist., Kaohsiung City 824006, Taiwan.
• ZAMINDIAcoreChannel Partner/ Reseller/ DistributorRepresentative for India. Contact: Mr. Nirav M. Bhavsar, Ratnaakar Atelier –7, Block – B 703, Satellite, Ahmedabad – 380015 Gujarat.
• CLIMB CORP. (Zambello Japan)coreChannel Partner/ Reseller/ DistributorRepresentative for Japan. Located at 11-5, Tomihisa-cho, Shinjuku-ku, Tokyo 162-0067. Contact: Mr. Masayuki Ebihara.
• PAAUS CORP. (ZAMBELLO KOREA)coreChannel Partner/ Reseller/ DistributorRepresentative for South Korea. Located at 9-1, Wonmi-ro 241 beon-gil, Bucheon-si, Gyeonggi-do, Korea 14556.
• ZARA LTDAcoreChannel Partner/ Reseller/ DistributorRepresentative for Brazil. Located at Rua Luigi Batistini, 241, Sao Bernardo Do Campo – SP. Contact: Mr. Armando Zara.
• CFAM TECHNOLOGIES (PTY) LTDminorChannel Partner/ Reseller/ DistributorRepresentative for South Africa. Located at Building G15F – NWU, Potchefstroom. Contact: Mr. Danie Vorster.

Scale indicators5 records

Recent moves16 records

Expansion highlights6 records

Direct peers

• Rossi Group: Italian manufacturer of gear reducers, gearmotors, and special-purpose gearboxes (now part of Sumitomo Heavy Industries). Comparable as another Italian-based industrial gearbox maker competing for similar OEM and aftermarket customers.
• Flender (Siemens): German industrial gearbox manufacturer (now part of Siemens) producing helical, planetary, and extruder gearboxes. Directly competes with Zambello in extrusion gearbox supply, especially to large global extrusion OEMs.
• Wittenstein SE: German manufacturer of high-precision planetary, low-backlash, and extruder gearboxes. Comparable as a technology-focused peer competing for high-end extruder and injection moulding gearbox applications.
• STOBER Drives: German manufacturer of precision gearboxes, servo gearheads, and drive systems serving plastics processing and extrusion machinery. Comparable as a peer supplying high-precision gearboxes to extrusion OEMs.
• Nord Drivesystems: German family-owned manufacturer of industrial gearboxes, gearmotors, and drive electronics with a strong presence in extruder applications. Directly comparable to Zambello as a specialized gearbox maker serving plastics and extrusion OEMs globally.
• Bonfiglioli Riduttori: Italian industrial gearbox manufacturer with broad portfolio including helical and planetary units for plastics, extrusion, and other industrial applications. Comparable as a peer Italian gearbox specialist serving similar B2B OEM customers.

Broad incumbents

• SEW-Eurodrive: German global leader in drive technology, gearmotors, and drive electronics across all industrial sectors. Comparable as a broad incumbent offering overlapping gearbox capabilities, though not specialized in extrusion like Zambello.
• David Brown (Sumitomo): Global industrial gearbox brand under Sumitomo Heavy Industries offering helical, worm, and planetary units. Comparable as a broad incumbent with overlapping extruder and industrial gearbox capabilities.

Others

• CPM Century Extrusion: Manufacturer of extrusion equipment and twin-screw extruders — an extrusion line OEM customer rather than direct gearbox competitor, but adjacent ecosystem participant that drives gearbox specification decisions.

Emerging players

• Nanjing High Speed & Accurate Gear (NGC): Chinese manufacturer of industrial gearboxes including extruder-specific units, with growing global market share in standard and mid-range gearbox segments. Comparable as a low-cost Asian competitor in extrusion gearbox markets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/channel/UCwXRcN_LnhOlqmtHu5SZDBg
• Facebookfacebook.com/zambellogroup
• LinkedInlinkedin.com/company/zambello-riduttori

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles13 records

Subsidiaries3 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 Zambello Group