Officine Meccaniche San Giorgio S.p.A.

Via Pacinotti 52/52A, 20020 Villa Cortese
Telephone +39 0331 431500
Fax +39 0331 432778


Hall map

GIFA 2015 hall map (Hall 16): stand H22-03

Fairground map

GIFA 2015 fairground map: Hall 16

Our range of products

Product categories

  • 11  Knock-out, fettling and finishing
  • 11.02  Blasting plant and accessories
  • 11.02.02  Airless shot-blasting machines
  • 12  Surface treatment
  • 12.06  Surface treatment plants

Surface treatment plants

  • 22  Environmental protection and waste removal
  • 22.03  Dust extraction systems

Dust extraction systems

Our products

Product category: Airless shot-blasting machines

Tappeto Rampante ® STEEL

The steel Tumblast machines Tappeto Rampante® are particularly used for treating work-pieces with unit weight from 20- 25 Kg, according to the machine.

The shot blast operation is done on :

- iron, steel , aluminium and brass castings
- steel or brass forgings or pressings
- heat treated work-pieces

The work-pieces placed loosely on the endless turning belt and they are shot blasted by the wheels positioned on the top part of the machine.

The load is done by an hydraulic skip loader, whilst the unloading can be done directly into the container , or on a vibrating chanel that allows the recovery of the shot remaining on the work-pieces.

Special devices: such as magnetic separator and an automatic device for the abrasive cleaner allows to optimize the shot blast operation by treating the castings.We were the first in Italy to design and manufacture Tumblast machines Tappeto Rampante®.

Tappeto Rampante® is a registered trade-mark of OMSG.

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Product category: Airless shot-blasting machines


The rubber Tumblast machines Tappeto Rampante® are used for treating work-pieces with small to medium size, such as :

- aluminium die-castings
- steel or brass forgings or pressings
- plastic material ( thermosettings)
- iron or steel pieces, medium to small sizes

They are made of an endless tumblast of rubber , with high resistance to wear; the work-pieces turn loosely inside the belt and they are shot blasted by the wheels positioned on the top part of the machine.

The machine can be equipped with special devices to achieve a better finish ( frequency converter for belt and wheels , PLC , flap and unloading belt , etc. ) avoiding crashes on the work-pieces.

The load and unload can be made manually or automatically with hydraulic skip loaders.

Tappeto Rampante® is a registered trade-mark of OMSG.

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Product category: Airless shot-blasting machines

CWB – Shot blasting machine with metal wire meshes

Continuous shot blast machine with metal wire mesh conveyor for the treatment of aluminium die-castings (automotive, food and civil fields) , iron castings , steel pressing, flame cut plate.

The work-pieces are placed on the wire mesh conveyor with high wear resistant and shot blast at one single pass through the blast room .

The number of the wheels and the installed powers changes according to the machine type.

The built-in dust collector in the standard version rationalize the machine encombrance.

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About us

Company details

OMSG was established in 1961 and since that time has proved itself to be a world leader in the design and manufacture of shot blasting, shot-peening and machine systems.

OMSG are based in Villa Cortese, on the outskirts of Milan and occupy a site of approx. 21,000 square metres, 8,000 of which cover machining, assembly, testing and quality control of machines together with paint shop and warehouse for spare parts.

OMSG have a second factory at Dairago (Milan) of approx. 20,000 square metres which is primarily used to refurbish second hand machines which can then be available for demonstration purposes to prospective customers.

The applications of OMSG blast machines cover many different industries and over the years OMSG has built up invaluable experience in solving customers cleaning problems. All the main industries such as foundries, steel, iron and non ferrous, forges, hot pressings, heat treatment, structural steel, railway vehicles, agricultural and construction machines, gas bottle, tanks, pipe line plant and shipyards, metallic wire and bars are fully covered by the OMSG range of machines together with the more specialist fields for the treatment of marble, concrete products, glass and thermosetting composition.

OMSG have a reference list of machines which includes some of the world's most prestigious companies and have supplied countless machines into more than 76 Countries. OMSG are justifiably proud of these achievements but are also determined to build on them to find new solution to customers problems and thereby offer the most up to date equipment available. (key-words: Granalladora, machines à grenailler, Grenailleuse, Jateadora)  

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Company data

Sales volume

10-49 Mio US $

Export content

max. 75%

Number of employees