CFR-Class 040 DH
class of Romanian diesel-hydraulic locomotives

CFR Class 040 DH (Factory designation LDH 125) are diesel-hydraulic locomotives produced in large numbers for shunting and light mainline service by the Romanian state railways CFR. In addition, 475 locomotives of this model were delivered to Romanian industrial companies, 263 units were delivered to Bulgaria, 42 units were delivered to industrial companies in Czechoslovakia, three units went to Iraq, two units went to China and one unit was delivered to USSR.
History
In order to replace the steam locomotives used in heavy shunting and service on branch lines, the CFR bought large numbers of these locomotives. These locomotives are very similar to the SBB Bm 4/4 in the design of the trucks and the sub-frames. The entire locomotive was created after an implementation project at Sulzer AG, the then Bukarester Lokomotivwerke 23. August started production. Production in Bucharest was made possible because the Romanian locomotive works had licenses for the production of the necessary hydraulic machinery. This locomotive became famous in Germany because one of the first examples produced was exhibited at the Leipziger Messe in 1968. Some of the locomotives were equipped with steam heating due to their intended use. These locomotives were later given the designation 80. The vehicles without train heating were classified as Class 81. Locomotives delivered to Bulgaria were given the designation BDŽ Class 55s.
The public source identifies “CFR-Class 040 DH” as class of Romanian diesel-hydraulic locomotives. This brief keeps that definition visible, then builds a research path around CFR-Class, class and Romanian.
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This entry incorporates text from “CFR-Class 040 DH” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.