Manufacturers
Few well-known manufactures produce purpose-built ballast tractors. Most high-volume manufacturers offer heavy duty chassis versions of certain tractor units which enable a ballast box to be fitted. In Europe, manufacturers tend to send some of their products to another company (owned by the parent) to be converted into a special heavy duty version.
Built-to-order machines tend to be the heaviest and most powerful machines designed for one company for a specific purpose. Nicolas Tractomas (France) for example, currently builds 8x8 and 10x10 ultra-heavy-duty tractors for Rotran in South Africa.
- Belgium
- MOL
- Canada
- Hayes
- Pacific
- Czech Republic
- Tatra
- France
- Nicolas Tractomas
- PRP
- Willème
- Germany
- Faun GmbH
- MAN (OAF)
- Mercedes Benz (Titan)
- Italy
- Astra-SIVI (Iveco)
- Netherlands
- DAF (GINAF)
- Spain
- BTO Trabosa
- TMU
- Switzerland
- NAW
- UK
- Atkinson Vehicles Ltd
- Foden Trucks
- Rotinoff Motors Ltd, Slough – 35 heavy haulage tractors were built by the company between 1952 and 1959, of which 11 are known to survive.
- Scammell Lorries – Many early examples, now used and seen as showman's vehicles, originally served with the army.
- Thornycroft
- Unipower
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Scammell ballast tractor. Note the front drawbar coupling for pushing heavy loads
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Atkinson ballast tractor
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Three of the 11 surviving Rotinoff Atlantic Ballast Tractors
- USA
- Diamond T - Ex-army tank transports were popular post-war with heavy hauliers in the UK.
- Kenworth
- Mack
- White
- Oshkosh Corporation
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