Surface Finishing


BOSSI has been operating for 40 years as world-wide leader in the manufacture of machines for metal surface finishing.
Our organisation operates in two production units, with a structure able to manufacture the whole machine, from design to electronics.
The wide range of production includes machines which can solve any problem of grinding, satin-finishing, polishing, deburring, etc. of any kind of ferrous and non-ferrous materials, in particular:

  • Centreless belt grinding and polishing machines for cylindrical surfaces
  • Longitudinal brushing/polishing machines for round or shaped tubes
  • Belt grinding and polishing machines for flat surfaces
  • Brushing/polishing machines for finishing large flat surfaces
  • Machines to be used “in-line” on tube-mills with TIG, LASER and H.F. welding systems: â€¨inside bead control machines for removing the internal weld bead tube weld grinding machines for removing the external weld bead planetary brushing and grinding machines brushing machines for square/rectangular tubes
  • Indexing and stepless rotary tables for grinding and polishing water taps, door handles, holloware, electric iron plates
  • Automatic transfer machines for high production
  • Lines for finishing door plates and switch plates
  • Wrapping machines for tubes
  • Special purpose machines


We have always been devoting ourselves to the realization of machines and systems universally recognized as a synonymous of reliability and technical lead. Our work consists in projecting and realizing the best technology for solution of a large range of problem of grinding, buffing, polishing, cutting, bevelling and generally of automation difficults.

To understand better secrets of our success we think we are obliged to explain how we develop our projecting and producing work in ARCOS. First of all, we always start with a careful analisys of problematics put to us and our Customers' observations.

Is our strong determination to combine our personal professional experiences with our Customer ones, so we can quickly put our efforts in a winning technical solution. This first step generates the propose of an adequate plant for the object attaintement.

Meccanica Ronzani

Family business founded by Angelo Ronzani together with his son Franco Ronzani in 1975, including the other son Paolo Ronzani since 1984, nowadays at its third generation thanks to the grandsons Roberto and Michele. The company started as a project study for the construction of custom-made industrial automation plants. From 1989, with the production of the “marbling machine” for metal sheets, the company adds to the design and construction upon request the production and reselling of its range of products. With the “marbling machine”, the MECCANICA RONZANI enters the market of the stainless steel metal sheets working. Thanks to the experience in industrial plants design, the company introduces new products for the surface treatment of stainless steel sheets: polishing machines, protective film-applying machines, grinding machines for vessel heads and tanks, planishing machines for seam welds on sheets and tanks, welding machines for dimple jackets for temperature control in the food industry.

The company presents itself on the national and international market participating in various exhibitions and trade fairs starting from 1990 with LAMIERA Bologna (Italy), from 2000 with EUROBLECH Hannover (Germany), from 2003 with FABTECH Chicago (USA). Nowadays MECCANICA RONZANI is the leading company on a national and international scale in a peculiar but ever-growing sector. MARBLING MACHINE The marbling decoration, a particular kind of surface circular grinding treatment obtained by a superposed and crossed engraving, has an aesthetic-ornamental function as well as a concealing function for impurities, imperfections, small deformations, and confers homogeneity to stainless steel and aluminium surfaces. Its main use is in tanks construction for wine, milk and oil storage, but not only.  This type of surface treatment dates back to the beginning of the 20th century, when it was executed by hand using a drill, a cork support and abrasive material. The process has changed through the years, but the result is practically the same.

From 1989 on, hundreds of marbling machines have been built in various models and it is still one of the most representative company’s products of selling. The mechanics and the control of the job steps have undergone important changes. The system has been improved from a basic relay control panel to a programmable logic controller (PLC) with engine and  inverters. The ultimate version includes continuous current brushless engines and computer numerical control (CNC). Through all this time the company has gained the valuable know-how in surface treatment that has made possible the development of very innovative solutions such as the ALROX Design Panels.

From this expertise the company starts a new period, the production and sales of a new “product”, metal sheets of various materials with special surface finishes. The decorations have a three-dimensional and dynamic optical effect, the reflection of which changes with the position of the observer and the light. These panels are employed in the field of furniture, showrooms, elevator cars, ceiling and column coverings, and many others. With this production the company Meccanica Ronzani has acquired a new shape with two productive units, RONZANI ENGINEERING and RONZANI DESIGN, and has started the procedure for the development and implementation of the Quality Management System to comply with the norm UNI EN ISO 9001:2008.