Introduction
ICMA San Giorgio S.p.A. is an Italian plastics machinery manufacturer specializing in co-rotating twin-screw extrusion technology, turn-key compounding lines, and direct extrusion systems for compounding, recycling, masterbatch, and sheet, pipe, and profile applications. Based in San Giorgio su Legnano, near Milan, the company traces its industrial roots to 1945 and has evolved from earlier mechanical engineering activities into a specialist supplier for demanding polymer-processing applications.
Within the plastics industry, ICMA occupies a niche defined by high-intensity mixing, process flexibility, and engineering integration, serving customers that need systems capable of handling highly filled formulations, recycled polymers, bio-based materials, and other complex compounds. Its business model combines extruder design, ancillary equipment, in-house manufacturing, testing, installation, and after-sales support, positioning the company as a technology partner rather than a standalone equipment vendor.
History and Development
ICMA’s origins date to the wider Colombo family industrial tradition, which began with a foundry founded in 1907 and later expanded into mechanical and metallurgical activities. The company itself was established in 1945, initially focused on machinery for wood processing and precision machine tools before moving into plastics equipment in the late 1960s.
A major milestone came in 1965, when ICMA designed its first patented twin-screw extruders, establishing the core platform that still defines the company’s identity. In the 1970s, ICMA developed applications for composite sheet based on polypropylene and wood flour, a precursor to modern wood-plastic composite processing and an early example of its focus on advanced materials.
In more recent decades, the company has broadened its portfolio toward recycling, reactive compounding, PET, bio-compounds, and other circular-economy applications, while also investing in testing and process-development capabilities. The company’s stated partnerships with Politecnico di Milano and its training activity with CESAP indicate a sustained emphasis on process know-how as part of its development strategy.
Business Operations and Capabilities
ICMA is a family-controlled industrial company with manufacturing and engineering operations centered in northern Italy. Public registry data identifies its core activity as the manufacture of machinery for plastics and rubber, and reports a workforce of about 51 employees with 2023 revenue of approximately €18.2 million.
Its operating model emphasizes:
- In-house engineering and manufacturing of main extruder components
- Turn-key plant supply for compounding and extrusion projects
- Process trials and development support through laboratory and development-center facilities
- Pre-assembly, testing, and commissioning support before delivery
This integrated approach is typical of capital-equipment suppliers that compete on application engineering rather than standardized machine sales alone.
Products and Technologies
ICMA’s principal technology is the co-rotating twin-screw extruder, supplied in standard, high-torque, and special-design configurations. These machines are designed for intensive dispersive and distributive mixing, controlled thermal management, and stable output in formulations that can be difficult to process on conventional extrusion equipment.
Key product and process areas include:
- Compounding lines for technical compounds, mineral-filled systems, masterbatch, and color/additive concentrates
- Recycling systems for post-consumer and post-industrial polymers, including devolatilization and odor reduction functions
- Direct extrusion / in-line compounding, where compounding and sheet or other extrusion steps are combined in a single production flow to improve efficiency and reduce handling steps
- Turn-key systems including feeding, dosing, cutting, material handling, and line integration
Technically, ICMA emphasizes the ability of its systems to process highly filled formulations, recycled polymers, natural fibers, and bio-based materials while maintaining industrial throughput. Publicly described examples include mineral-filled compounding lines capable of outputs above 3,000 kg/h in a project for a global appliance manufacturer.
Applications and End Markets
ICMA’s systems serve several industrial segments across the plastics value chain:
| End market | Typical ICMA-relevant applications |
|---|---|
| Packaging | Sheet and multilayer sheet production, recyclable crate concepts, masterbatch and additive compounding |
| Automotive | Interior trim materials, composite sheet, technical compounds, lightweight composite applications |
| Construction | Pipe and profile compounds, sheet applications, filled compounds |
| Appliances / white goods | Mineral-filled and technical compounds for durable consumer goods |
| Recycling and circular materials | Upgrading of plastic waste, devolatilized recycled polymers, circular feedstock preparation |
The company also references work in wood-plastic composites, natural-fiber composites, and thermoformable sheet for industrial and consumer applications.
Global Presence and Market Position
ICMA is headquartered in San Giorgio su Legnano, Lombardy, and markets its equipment internationally through direct sales and representative networks. The company has participated in major plastics-industry exhibitions, including listings associated with Plast 2026 and Plast Eurasia, which supports its international visibility in polymer processing markets.
Its market position is best understood as that of a specialist European OEM focused on higher-complexity extrusion and compounding systems rather than mass-market commodity machinery. Public materials suggest a global customer base spanning Europe, the Americas, and other industrial regions, with customized engineering being a central differentiator.
Sustainability and Environmental Initiatives
Sustainability is prominent in ICMA’s positioning, especially through its focus on plastic recycling, material upgrading, and energy-efficient direct extrusion. The company presents co-rotating twin-screw technology as relevant to the transition toward more circular polymer flows because it can help process recycled materials, remove volatiles, and improve melt homogeneity.
ICMA also states that it has pursued external sustainability assessment through EcoVadis, reaching a Silver level according to its company information. Its systems are additionally presented as supporting lower-energy process integration by combining multiple stages into fewer production steps, particularly in direct extrusion applications.
Financial Performance and Economic Impact
Available public registry data indicates 2023 revenue of about €18.2 million and net profit of roughly €1.44 million, suggesting a profitable mid-sized industrial enterprise within the machinery sector. The company’s economic footprint is amplified by its role in supplying capital equipment to polymer processors, where a single line can affect downstream productivity, recycled-content capability, and product quality across multiple customer industries.
Leadership and Corporate Governance
The company is led publicly by Dr. Giorgio Colombo, identified in company materials as President and CEO. ICMA describes its governance and culture in terms of long industrial continuity, family ownership, engineering discipline, and internal quality control, including ISO 9001 certification referenced in company and directory materials.
Innovations and Future Outlook
ICMA’s future prospects are tied to several broader industry trends: recycling of mixed and difficult polymer streams, higher recycled content requirements, bio-based and natural-fiber compounds, and integration of compounding with downstream forming. Its technical emphasis on co-rotating twin-screw systems places it in a favorable position for applications where process stability, devolatilization, and formulation flexibility are important.
The company’s continued relevance will likely depend on:
- expanding circular-material processing capabilities
- maintaining high process engineering value for custom lines
- supporting customers with trials, revamping, and service over the lifecycle of the equipment
- adapting to changing requirements in automotive, packaging, and industrial plastics markets
Summary
ICMA San Giorgio is a long-established Italian machinery company whose identity is closely linked to twin-screw extrusion, compounding technology, and industrial recycling systems. Its combination of engineering depth, turn-key project execution, and sustainability-oriented processing solutions makes it a notable specialist within the global plastics machinery sector.
References
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CPS+ eMarketplace. (n.d.). ICMA SAN GIORGIO SPAICMA SAN GIORGIO SPA. CPS+ eMarketplace. https://www.chinaplasonline.com/eMarketplace/ExhibitorInfo?CompId=1022680Link