Ruston-Bucyrus
| Industry | Heavy equipment |
|---|---|
| Headquarters | Selston, Nottinghamshire, England, UK |
| Products | Cranes, spares, fabrication |
| Owner | Delden Cranes Ltd |
| Website | RB Cranes |
Ruston-Bucyrus Ltd was an engineering company established in 1930 and jointly owned by Ruston & Hornsby based in Lincoln, England, and Bucyrus-Erie based in South Milwaukee, Wisconsin, the latter of which had operational control and into which the excavator manufacturing operation of Ruston & Hornsby was transferred. The Bucyrus company proper, from which the Bucyrus component of the Ruston-Bucyrus name was created, was an American company founded in 1880, in Bucyrus, Ohio.
During the Second World War, the company developed a trench-cutting machine known by the code name Cultivator No. 6 at the behest of Winston Churchill.
A limited company, Ruston-Bucyrus Ltd., was formed in 2005, by Paul and Frank Murray (Brothers) as co-directors. This has no ties to RB Cranes which holds all of the original machine information and drawings.