EMD G22CU


The EMD G22CU is a narrow gauge diesel-electric locomotive designed and built by the Electro-Motive Division of General Motors. It was manufactured by several licensees, and exported to many countries including Argentina, Australia, Brazil, Egypt, Iran, New Zealand, Nigeria, Pakistan, South Korea, Yugoslavia and Taiwan .

Overview

G22 locomotives were first built in 1967 with the export markets in mind. For that reason they carried a low per-axle weight. The CU version sports a C-C traction motors configuration, and 1-meter gauge. Its main engine is an EMD 12-645. They were produced at the General Motor's Electro-Motive Diesel plants at La Grange and London -Canada-, as well at plants -under license- in other countries, including Argentina and Spain.

Argentina

In 1972 Ferrocarriles Argentinos bought 250 locomotives from Electro Motive Division of General Motors, including G22 and GT22 models. 96 of them where delivered to the Ferrocarril Belgrano line, so they were the CU version, adapted to its 1-meter gauge. Belgrano Norte line received 20 built at La Grange, while Belgrano Sur line received 5 produced at London -Canada-. The remaining ones were built by Astarsa at San Fernando, Buenos Aires.
At first they were assigned to the suburban passenger service in Buenos Aires. Afterwards many of them were sent to the northern part of the country, where they ran services among several cities including Salta, Resistencia, Embarcación, Formosa and Tucumán. When Ferrocarriles Argentinos was dismembered and privatised at the beginning of the 1990s, these locomotives were handed over to several different companies including Ferrovías, Metropolitano and Belgrano Cargas.
As of 2015 many of them are still in service for Belgrano Norte and Belgrano Sur lines and State-owned freight company, Belgrano Cargas.

Brazil

The Brazilian railways company, RFFSA, acquired 24 G22CUs -produced in Spain by Materiales y Construcciones SA under license- in 1971. They were put in service at the Division #13 Rio Grande do Sul, serving the states of Paraná, Santa Catarina and Rio Grande do Sul. Due to RFFSA privatisation 21 of the locomotives where transferred to Ferrovia Sul Atlântico SA, which afterwards became part of ALL.

Taiwan

In order to improve the hauling efficacy, Taiwan Railway Administration bought 20 G22CU from GM-EMD IN 1973. They were named the "R150" series and numbered from R151 to R170. All the R150 series arrived Taiwan between 1973 and 1974. In 1982, five more G22CU were purchased. Currently, their main arena is the East-Trunk Line.
One of the locomotives, R164, was removed from service after an accident in 2001.

Related locomotives

These locomotives are very similar to G22CW, which are standard or broad gauge, and to GM GT22 Series, which are turbocharged.