Zambello – Setting the Global Standard for Extrusion Gearboxes
There’s a certain kind of company that lets its engineering do the talking. No flashy campaigns, no oversold promises, just decades of precision built machines running quietly inside the world’s most demanding production lines. Zambello Group is exactly that kind of company. Found by Zevio Zambello, father of Elio and Alessandro, the current owners, the company has been designing and manufacturing helical reduction gearboxes of the highest technology since 1957. What started as a focused workshop in northern Italy has grown into the undisputed world leader in extruder gearboxes. Nearly seven decades in, and the orders keep coming from every corner of the globe.
The Man Behind the Message
On the sidelines of Plast 2026, Mr. Ginu Joseph, Editor and Chief of Modern Plastics India and Vice President of the Global Plastics Association sat down with Alessandro Feller, Export Sales Director at Zambello Group, for a conversation that was as substantive as it was candid. Feller who carries the weight of nearly 70 years of Italian engineering heritage into every market he walks into spoke openly about Zambello’s global expansion strategy, the growing demand for high-precision extruder gearboxes across emerging manufacturing economies, and why the company’s decision to manufacture every single component in-house continues to be its single greatest competitive advantage. What struck Mr. Joseph most was not just the depth of technical knowledge Feller brought to the table, but the quiet confidence of a man who knows his product has nothing to prove because the machines already running in factories across five continents are doing the proving every single day. For the readers of Modern Plastics India a market that is rapidly scaling its plastics processing capacity and actively seeking world class machinery partnerships it was precisely the kind of direct, unfiltered access to a global industry leader that shapes informed buying decisions and long-term supplier relationships.
What They Make, and Who It’s For
The Group constantly invests in the research and development of new gearboxes dedicated to the extrusion field an important task in order to strengthen its position of worldwide leadership. The product range covers virtually every extrusion application imaginable. The ZPE series for single screw extruders is a benchmark product, sizes running from 90 to 630, built for extraordinary performance and reliability. The ZT and TST twin screw series introduced compact square shaped designs and pushed twin screw drive technology to its highest level, available in both co rotating and counter rotating versions. For injection moulding applications, the MNP3 series handles high torque transmission for plasticising screws with the same uncompromising build quality Zambello applies to everything it makes. All components, housings, toothed gears, everything are manufactured and tested in house on high technology CNC machines. Every gearbox goes through hours of test runs before leaving the factory, with an acceptance certificate issued on each unit. Both facilities carry EN ISO 9001 certification. Nothing leaves Magnago or Lendinara until it’s ready.
Where do Zambello gearboxes actually end up? Inside the production lines that make the packaging on your food, the pipes running beneath your city streets, automotive components, medical devices, agricultural film, and construction materials. If plastic is being extruded somewhere in the world and it is, on thousands of lines across five continents there’s a very strong chance a Zambello gearbox is at the heart of it.
The Family That Built a Global Standard
In the history of Zambello Group, the value of individual people assumes a fundamental importance. Zevio Zambello didn’t just start a business he invented the first reduction gearbox suitable for universal mounting, a design so effective it became the most imitated in the industry worldwide. His sons Elio and Alessandro carried that standard forward, expanding the group to two production plants, growing the Lendinara facility to over 23,000 square metres of covered production space, and building an automatic warehouse with over 50,000 active codes enabling immediate distribution of components anywhere in the world. That’s not logistics, that’s a commitment to never letting a customer’s line stay down.
Alessandro Feller, Export Sales Director, is the face of Zambello in global markets carrying nearly 70 years of Italian engineering credibility into every meeting, every negotiation, every new market the company enters.
PLAST Milan 2026, A Familiar Stage for a World Leader
Plast 2026, held at Fiera Milano in Rho from 9 to 12 June, brought together the world’s leading plastics and rubber industry professionals under one roof. For engineers and procurement managers walking those halls looking for a gearbox partner they could trust for the next decade, the ZR Group stand offered something most competitors can’t, nearly seven decades of proof. No prototypes, no fake promises, just a product line that the world’s biggest extrusion machinery manufacturers have already voted for with their purchase orders.
Why Serious Manufacturers Choose Zambello
The strong specialisation, wide range of products, significant investment by ownership, and continuous improvements aimed at obtaining a reliable, competitive, and very high quality product are some of the reasons that the major world manufacturers of extrusion lines have chosen to be partners of this group. In practical terms, it comes down to this “when your production line goes down, no one wants to hear the part is three weeks away.” The company’s warehouse readiness and global shipping capability mean downtime is kept to a minimum. Every component is made in Italy, to Italian precision standards, by people who’ve been doing nothing else for generations and when you need a customised solution, because real world manufacturing rarely fits catalogue specs perfectly, their team of widely experienced engineers keeps customer needs at the centre of every design decision, with the commercial and technical teams working closely together.
“That’s not a sales pitch. That’s a track record built since 1957 and it’s still being added to, one gearbox at a time.”
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