Voronezh Mechanical Plant

Voronezh Mechanical Plant (Russian: , "ВМЗ") is a Russian engine and heavy machinery manufacturing plant. It is located in the city of Voronezh, in the Voronezh Oblast.
History.
Voronezh Mechanical Plant started as a diesel engine manufacturing plant, and has been the plant that serially manufactures the engines designed by Chemical Automatics Design Bureau (KBKhA). In later years, it has branched into producing oil and gas products like valves, manifolds and fittings.
In January 2017, Roscosmos announced that firing tests revealed problems with the Voronezh-produced Proton rocket upper stage engines. According to the investigation, expensive alloys had been replaced by cheaper less heat-resistant alloys. Voronezh director-general Ivan Tikhonovich Koptev resigned.
On November 1, 2019, enterprises "ВМЗ" and the Chemical Automatics Design Bureau were merged.
Products.
Current engines.
Engines in production at the plant as of 2015:
Former engines.
Engines that are no longer produced at the plant.