Bruno Presezzi industrial equipment and heavy mechanical assemblies

Italian heavy engineering by Bruno Presezzi S.p.A.: twin-roll strip solidification, heavy industrial gearboxes, and large-scale precision machining.

Continuous strip solidification lines and water-cooled rolls

Bruno Presezzi continuous twin-roll strip production machinery for non-ferrous alloys. The units deliver uniform thermal conduction and consistent strip profile, featuring automated startup sequences and reduced energy expenditure across production runs.

Water-cooled roll assemblies and wear-resistant crystallizer sleeves.
Automated line startup with dynamic roll gap regulation and monitoring.
Uniform heat dissipation across the entire width of the rolling strip.
Heavy-duty bearing chocks and hydraulic screwdown pressure mechanisms.

Heavy precision machining and multi-axis finishing

High-precision machining of heavy industrial workpieces and custom parts weighing dozens of tons in Bruno Presezzi machine shops. Operations include horizontal boring, vertical turning, and multi-axis contour milling for complex geometry.

Horizontal and vertical lathe turning of oversized industrial blanks.
Deep hole boring and high-tolerance milling of heavy structural housings.
Coordinate measuring validation of tight dimensional tolerances.
Fine machining of stainless, high-temperature, and alloy steel components.

Heavy industrial gearboxes and girth gear rings

Engineering, manufacture, and revamping of heavy industrial gearboxes by Bruno Presezzi for severe duty applications. The transmission units power rolling mill drives, converters, rotary ball mills, and industrial calcining kilns.

Split girth gear rings of large diameter and pinion shaft assemblies.
Bevel and helical gear pairs with ground tooth flank profiles.
Reinforced fabricated housings with forced oil lubrication circuits.
Complete overhaul and tooth profile redesign for installed drive units.

Heavy structural weldments and alloy fabrication

Production of complex fabricated assemblies and foundation bedplates by Bruno Presezzi for metallurgical and mining machinery. Welding of duplex alloys, Inconel grades, and high-strength steels is conducted by qualified specialists.

Rolling mill housing stands and heavy structural baseplates.
Non-destructive examination of weld seams via ultrasonic and radiograph tests.
Thermal stress-relief furnace treatment to stabilize weldment dimensions.
Fabrication using corrosion-resistant duplex and high-nickel alloys.

Engineered modular process packages and skids

Engineering and manufacturing of autonomous modular skid packages by Bruno Presezzi for continuous industrial processes. Rigid structural skid frames integrate pump trains, pipe manifolds, valves, heat exchangers, and instrumentation arrays.

Compact modular architecture mounted on a rigid unified base frame.
Integration of pumps, plate heat exchangers, and process instrumentation.
Full pressure proof testing of piping manifolds prior to shipment.
Lubrication oil circulation, fluid cooling, and media dosing modules.

Heavy turbine housings and energy generation components

Manufacture of critical housings and structural parts for power generation machinery at Bruno Presezzi facilities. Components include flow path shells, diaphragm rings, trunnion rings, and bearing housings for steam, gas, and hydro turbines.

Cylinder bodies and shells for high-pressure and medium-pressure turbines.
Trunnion rings, guide vane assemblies, and water turbine runner housings.
High-precision joint plane milling ensuring tight leak-free mating.
Protective cladding and erosion-resistant surface overlays on flow zones.

Italian heavy engineering traditions and manufacturing heritage

Italian manufacturing company Bruno Presezzi S.p.A. dates back to 1954, when founders Bruno Presezzi and his wife Bianca established a mechanical workshop in the Brianza district of Lombardy.

Over seven decades of continuous engineering development, the enterprise has grown into a globally recognized producer of heavy industrial machinery for metallurgy, energy generation, and oil and gas processing.

The primary production plant in Burago di Molgora and the operational facility in Terno d'Isola house an extensive inventory of heavy machine tools and welding bays.

High engineering competence enables Bruno Presezzi to execute demanding equipment projects for leading international OEMs, meeting rigorous European reliability benchmarks.

Continuous twin-roll strip solidification technology and cooled rolls

Continuous strip production lines designed by Bruno Presezzi represent an advanced solution for direct conversion of molten aluminum into coiled strip without intermediate hot rolling of heavy ingots.

The technological package incorporates internally cooled roll assemblies equipped with forged crystallizer sleeves that ensure rapid heat removal.

An automated process control system continuously tracks the roll gap geometry, crystallization temperature profiles, and strip pull speeds.

Implementing these proprietary engineering solutions allows non-ferrous rolling mills to process diverse wrought aluminum alloys while achieving uniform fine-grained metallurgical grain structures.

Machine shop inventory and heavy precision machining of workpieces

Bruno Presezzi production bays specialize in high-precision finishing of large-scale mechanical assemblies weighing up to dozens of tons with intricate dimensional profiles.

The heavy machining fleet features computer numerical control horizontal boring mills, five-axis portal milling centers, and vertical turning lathes with expanded faceplate diameters.

Machinists execute deep hole boring, custom profile thread milling, and surface grinding of foundational machine bedplates. Geometrical alignment of finished machinery is verified using laser tracking devices and high-capacity coordinate measuring systems to ensure proper mechanical mating.

Engineering of heavy-duty industrial gearboxes and gear transmissions

The company possesses long-standing expertise in designing, manufacturing, and comprehensive revamping of specialized heavy industrial gearboxes. Bruno Presezzi drive units operate on metallurgical rolling mills, basic oxygen converter drives, mineral grinding ball mills, and rotary cement kilns.

The factory manufactures large-diameter split girth gear rings, high-speed spiral bevel gear sets, and heavy-duty helical pinion shafts from high-strength alloy steels.

Carburizing, deep quenching, and precision tooth flank profile grinding provide smooth tooth meshing and uninterrupted torque transfer under severe shock loads.

Fabrication of heavy structural weldments from specialized alloy steels

Manufacturing of structural machinery housings, foundation bedplates, and modular piping headers is conducted within dedicated steel fabrication bays.

Factory welding engineers have qualified welding procedure specifications for demanding alloys, including austenitic stainless steels, duplex alloys, and nickel-base Inconel materials.

Every weld seam undergoes comprehensive non-destructive examination, including ultrasonic flaw detection, dye penetrant inspection, and radiographic analysis.

To relieve internal residual stresses following welding, heavy fabricated assemblies undergo thermal stress-relief treatment inside a furnace.

Component selection and engineering verification by technical drawings

When ordering replacement assemblies or maintenance spare parts for Bruno Presezzi equipment, identifying technical parameters is essential. The engineering team verifies parts through manufacturer codes, machinery rating plates, customer archives, or equipment documentation.

Engineers coordinate mounting dimensions, steel grades, surface hardness profiles, and heat treatment specifications. Direct interaction with European manufacturing plants ensures full alignment of replacement components with industrial plant operating standards.

Bruno Presezzi and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Bruno Presezzi and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.