background--image

Manufacturing Processes & Machinery

Metal treatments

Surface treatments for every protection and finishing need: shot blasting, galvanizing, electroplating and coating for durable metal structures ready for any environmental condition.

Shot blasting

A perfectly clean surface is the first guarantee of long-term durability, without the risk of coating detachment or premature corrosion caused by inadequate surface preparation.

Shot blasting removes rust, oxides and processing residues, creating the ideal conditions for the adhesion of subsequent coatings.

Hot-dip galvanizing

For structures exposed to atmospheric agents, hot-dip galvanizing means long-lasting protection and minimal maintenance. The molten zinc layer completely envelops the component, protecting it from corrosion even under the harshest conditions. For the customer, this translates into structures that remain reliable over time, lower future maintenance costs, and the peace of mind of relying on a proven treatment for heavy fabrication, load-bearing structures and walkways designed to last for decades.

Cold electrolytic galvanizing

This is the ideal technical solution for components with tight tolerances, threads or moving parts, where dimensional precision is an essential requirement. The customer receives a part that is protected from corrosion and compliant with the design from the very first piece, with no rework or surprises during assembly, and a uniform finish that also meets the most specific aesthetic requirements.

Powder coating

Electrostatic application of powders, followed by curing in an oven (180-200°C), produces a solvent-free coating, with consistent thickness even on complex geometries and superior mechanical, chemical and UV resistance compared to traditional liquid systems. This is a technology that combines performance and sustainability, thanks to the recovery of excess powder and the absence of solvent emissions. For the customer, this translates into components that retain their appearance and protection over time, significantly reducing maintenance work, with the freedom to choose from a wide range of colours and finishes for every need.

Liquid painting

Spray application opens up a range of paint product families — alkyd, epoxy, polyurethane — selectable based on chemical resistance, film flexibility or UV resistance. This versatility makes liquid painting an ideal choice even on already assembled components or on geometries where powder coating reaches its limits. For the customer, this means a tailor-made treatment, calibrated to the component's real operating conditions, with a level of aesthetic finish that makes the difference on light fabrication, visible panelling and technical components intended to remain visible in the finished product.

background--image

Precision and versatility, in every format

Our machine fleet for surface treatments allows us to cover everything from precision components to large-format structures, adjusting process parameters and coating thicknesses each time to the specific needs of the project.

Costa MD6-CB0 1350 Deburring and Finishing Machine

Industrial wide-belt finishing machine designed for surface finishing, deburring, and edge rounding of sheet metal components.

  • Working width: 1,350 mm
  • Automatic wide-belt deburring and finishing system
  • Uniform processing across the entire surface
  • Modular configuration with multiple finishing units
  • High productivity and process repeatability
  • Reduced need for manual grinding and finishing operations
  • Suitable for single parts, small batches, and high-volume production
  • Capable of processing carbon steel, stainless steel, and aluminum

Do you have a technical drawing or specification for evaluation?

Click here!

From treatments to complete fabrication

Thanks to the integration of surface treatments within the metal fabrication production cycle, Officine Tironi is able to manage and coordinate every stage of the process. This allows us to deliver complete, protected components that are ready for installation, optimising time, quality and order management.

Welding

The point where technology and experience meet to turn individual

Punching

High-precision automated punching for every metal fabrication requirement: holes, shapes,

Bending

Press brakes and automatic panel bender for precision bends on

Assembly

Industrial assembly of steel structures: assembly of light and heavy,

Paneling

Automated sheet metal panelling with the Salvagnini P4-2520 panel bender:

Sheet Metal Cutting

Cutting technologies for every metal fabrication requirement: from fiber laser

Sheet Metal Rolling

Custom plate rolling services for steel, stainless steel, aluminum, and

Frequently asked questions about metal treatments

Galvanizing, painting, shot blasting: each treatment meets specific needs in terms of protection, durability and aesthetic finish. In this section we answer the most common questions to help guide your choice toward the solution best suited to your project.

The choice depends on the project's priority: durability of anti-corrosion protection or aesthetic finish. Hot-dip galvanizing provides the longest-lasting protection overall, thanks to the zinc-iron alloy formed through immersion and the cathodic protection provided by zinc, making it particularly suited to structures continuously exposed to atmospheric agents. Painting, whether powder or liquid, instead offers superior control over colour and aesthetic finish, generally with a shorter protective lifespan if used on its own.

Yes, and it is a very common practice when seeking the maximum in both protection and aesthetic finish. The combination of hot-dip galvanizing and powder coating — known as the duplex system — creates a synergistic effect: the paint protects the zinc layer from surface wear and UV exposure, while the zinc continues to provide underlying anti-corrosion protection even if the paint film is locally damaged.

Shot blasting grades, defined by the ISO 8501-1 standard, indicate the level of cleanliness achieved on the metal surface after abrasive treatment. Sa 1 (light brush-off blast cleaning) removes only surface dirt and loose residues, with a minimal degree of cleanliness. Sa 2 (commercial blast cleaning) removes most rust and mill scale, leaving only slight visible traces. Sa 2.5 (near-white blast cleaning) is the most commonly required grade in industrial painting and galvanizing cycles: it removes practically all rust and oxides, leaving only slight, spot-like shadows, an ideal condition for ensuring the adhesion of subsequent coatings. Sa 3 (white metal blast cleaning) is the most thorough grade, with total removal of any trace of oxide or contaminant: reserved for very high-performance coatings or particularly aggressive environments.

For components continuously exposed to rain, temperature fluctuations, or industrial and marine environments, hot-dip galvanizing is the reference solution: zinc's cathodic protection continues to defend the metal even in the presence of scratches or surface impacts, a typical condition for heavy fabrication, load-bearing structures and walkways.

Looking for more information?

Complete the form to learn more about our services and manufacturing capabilities. We’ll get back to you as soon as possible.

By sending this form, I agree to the Privacy Policy *