Dorin

Our History

FROM TRADITION TO INNOVATION

1918

Established in 1918 as a manufacturer of machine tools, broaches and adjustments, air compressors and repairers of motor vehicle engines, Officine Mario Dorin began producing open type compressors for refrigeration systems in 1932. Soon, the latter became the company's core business.

1970

In 1952, thanks to the large business capacity of the founder Mario Dorin and his mechanical intuition, the company began producing semi-hermetic reciprocating compressors for air conditioning and refrigeration.
In 1970, the company, in order to accommodate an ever-increasing production, changed location and moved to the present facility of approximately 20,000 square meters.
Today Dorin, thanks to the commitment and the know - how of the children and grandchildren of Mario in synergy with all internal and external collaborators, has consolidated its international reputation and continues to grow, producing about 50,000 piston compressors a year.

1990

Between 1983 and 1998, OMD expanded its offering by adding to its range of compressors, machineries with 6 cylinders (30 to 50 Hp with displacement from 84 to 138 m³/h) and those with 8 cylinders (60 to 75 Hp with displacement from 184 to 200 m³/h).
In 1998, it was added to the extensive range of products, the model 16 pistons with its 150 Hp and displacement up to 400 m³/h, compressor that today, although no longer in production, remains unique in its type, one of the Dorin flagships of the entire history of refrigeration.

2000

The real innovation of Dorin was born in 1999, the year in which new technologies have been developed such as the application of frequency modulation and the use of CO₂ as a refrigerant.
Since 2004 OMD is the main reference manufacturer of CO₂ compressors for transcritical application, recognized throughout the world in every commercial sector. Soon Dorin became a reference point for the use of CO₂ in subcritical phase too.
During the same period have been designed and manufactured compressors Series HI, specially designed for the electronic control of frequency, products which have now been successful in those markets concerned with implementing a strict policy of energy saving.
In 2008, the birth of the compressors H4, H5, H6 and H7 have completed the entire Series H.

Established since over 90 years, managed for more than 50 years by the Dorin family, is now ready to face the challenges of the third millennium creating technologically perfect, modern and reliable products.

Products

A complete and diversified range of compressors for refrigeration and air conditioning

SEMI-HERMETIC COMPRESSORS

SEMI-HERMETIC DOUBLE STAGE

TANDEM

OPEN TYPE COMPRESSORS

AIR-COOLED CONDENSING UNITS

WATER-COOLED CONDENSING UNITS

REMOTE-CONDENSING UNITS

Dorin offers a complete and diversified range of compressors for refrigeration and air conditioning systems that will meet the needs of the market: more than 600 models of open type and semi-hermetic compressors and condensing units, designed and built to be used with HCFCs or HFCs, but also with₃

natural refrigerants such as hydrocarbons (HC), ammonia (NH) and especially carbon dioxide (CO₂). The product range is completed by two-stage compressors and a wide range of accessories.
Efficiency, reliability and robustness are the main features of our products with the utmost

attention to the quality of suppliers, individual components and production cycle.

 Depliant

Dorin's products are used in numerous applications:

COMMERCIAL REFRIGERATION

Systems designed with compressors in series or in parallel to address the need for refrigeration and air conditioning systems in shopping malls, supermarkets, hypermarkets and logistics centers.

RAILWAY AIR CONDITIONING

Equipments used to cool railway carriages for passengers, cargo and cockpits.

INDUSTRIAL REFRIGERATION

Plants for refrigeration, cryopreservation and lyophilization of pharmaceutical products, for the refrigeration of installations for the transport of hydrocarbons, for the food processing such as ham and cheese manufacturing sites.

MARINE APPLICATIONS

Systems for naval applications in air conditioning and refrigeration, both for ambient dedicated to passengers and for those used for the storage and processing of fish.

ICE-CREAM INDUSTRY

Systems for the production and storage of ice cream.

DISTRIBUTION

Large distributors of technical equipment for refrigeration and air conditioning.