tour vertical à un montant

CONT: Tours verticaux à un montant (...). Cette réalisation correspond aux machines de petite et moyenne capacité, dont le diamètre du plateau est habituellement compris entre 630 mm et 2 500 mm pour les machines à siège fixe, et entre 1 600 mm et 10 000 mm pour les machines à plateau ou montant déplaçable.

CONT: On a single column vertical lathe critical operations occur mainly in turning higher workpieces.
OBS: The above context was taken from a source written by a non-native speaker of English.
OBS: single-housing vertical boring machine: A ""vertical boring mill"" was originally a machine with one or two ram-type heads, while a ""vertical turret lathe"" was a machine with a vertical, turret-type head ... Modern machines frequently combine the two types of heads ... Consequently all machines of this type are now generally called vertical boring machines.