TÜLOMSAŞ

Railway workshop and early manufacturing

The Eskişehir works began in 1894 as a railway repair workshop during construction of the Anatolian railway network. Initially it performed repairs on steam locomotives and carriages, while major components and spare parts were imported. The facility became known as the Eskişehir Cer Atölyesi (Eskişehir Traction Workshop) in 1920 and gradually expanded its maintenance and manufacturing activities.

In 1957 the workshops built two small steam locomotives, Mehmetçik and Efe, for the railway at Gençlik Parkı in Ankara. The site was reorganized as the Eskişehir Railway Factory in 1958. In 1961 it completed Karakurt, an early domestically built mainline steam locomotive with a rated maximum speed of 70 km/h. The same factory produced four prototype Devrim automobiles in 1961 under a project initiated by the Turkish government.

Expansion and incorporation

Diesel locomotive manufacture expanded in the late 1960s through agreements with foreign manufacturers, including German manufacturer MaK and French engine designer SEMT Pielstick. In 1970 the works were renamed Eskişehir Lokomotif ve Motor Sanayii Müessesesi (ELMS). In 1986 the enterprise was reorganized as a subsidiary of TCDD and adopted the corporate name TÜLOMSAŞ.

TÜLOMSAŞ manufactured and assembled diesel-hydraulic, diesel-electric and electric locomotives, as well as diesel engines, alternators, traction motors, bogies, freight wagons and railway-maintenance equipment. Many locomotive classes were produced under licence or through technology-transfer agreements with manufacturers abroad. The Eskişehir factory's official history records the following selected milestones:

The factory also participated in the development of the E1000 prototype electric locomotive with TÜBİTAK Marmara Research Center (MAM). The prototype was presented publicly on 8 October 2015. The project developed domestic traction and control systems for an electric locomotive.

Under Presidential Decision No. 2186, published on 4 March 2020, the government ordered the consolidation of TÜLOMSAŞ, TÜVASAŞ and TÜDEMSAŞ into the newly established state-owned railway vehicle manufacturer TÜRASAŞ. The three former companies ceased to exist as separate legal entities when TÜRASAŞ was registered on 30 July 2020. Its Eskişehir regional directorate took over the former TÜLOMSAŞ facilities and continued railway vehicle manufacture and maintenance there.