In January 1946 the Company took over the business of the Vickers Train Lighting Company, for which it had manufactured equipment for many years.

X-ray work, in which M-V pioneered the production of high voltage apparatus, particularly for industrial crystallography and for deep therapy, was expanded in 1946 by the acquisition of Newton & Wright, one of the oldest manufacturers of x-ray and optical equipment with origins going back to the celebrated Sir Isaac. In 1948 the Victor X-ray Corporation, handling medical and industrial x-ray apparatus, was purchased from the General Electric X-ray Corporation of America, and at the end of July all x-ray interests were amalgamated by the formation of Newton Victor Limited. Extensive manufacturing facilities were provided in a new factory at Motherwell near Glasgow.

The Warrington works and all technical and commercial work on the metallic carbides made there were transferred at the beginning of 1949 to a new company, Metro-Cutanit Limited, formed jointly with Cutanit Limited which had hitherto bought and marketed these sintered carbides. Besides the carbides, which are now used widely for cutting tools and for wear-resisting parts such as wire-drawing dies and sand-blast nozzles, Metro-Cutanit handles Elmet compound metals, formerly made by Compound Electro-Metals Limited for use in switchgear, resistance welding equipment, bearings, and so on.

With the end of war production much space became available at the Trafford Park works, and as each factory or shop was vacated it was quickly adapted to normal manufacturing purposes. Something like a million square feet of floor space was involved in this great change-over, which was planned by the works manager, W. Symes.

In August 1945 the Government cancelled the Company's aircraft contract, and before the end of the year the last completed airframe had been despatched. At the former aircraft factory, renamed the Mosley Road works, only a skeleton staff remained to dispose of tools, jigs and redundant material. Meanwhile preparations were in hand to transfer the press shop and the entire motor department from the main works, and in February 1946 the actual removal began. Within five months the press shop and the machine shop, commutator, winding, shaft and detail sections of motor department were in full operation on the new ground; no production time had been lost, as every machine had been transferred to a prepared site during a weekend. The engineers, drawing office and sales also had moved into the aircraft offices. The transfer of the tests beds—the biggest job of all—was finished by February 1947, and two months later the move was complete. Motor manufacture now occupies a floor area of some 250,000 sq. ft. laid out to give a smooth flow of materials and manufactured parts.