The Caterpillar 225 excavator
After years of planning and testing in secrecy, Caterpillar finally unveiled its first hydraulic excavator a fair bit later than a lot of the competition....
Category : Classic Machines
The International-Harvester 560 payloader
The International model 560 Payloader represented one of the first of the new breed of wheel loaders in International Harvester’s product range and was introduced...
Forgotten companies: Heil
Heil, whose head office and main production plant was in Milwaukee, Wisconsin, USA, was at one stage on the ‘cutting edge’ of earthmoving technology when...
The Allis-Chalmers HD-21 tractor
Developed directly from its model HD-20 (introduced 1951), the HD-21 featured among other things, one of the diesel engines from the recently acquired Buda Engine...
International Harvester’s 400 series scrapers
An entirely new design from International Harvester, the 400 series was based around a modular concept of construction and consisted of four machines – a...
The Caterpillar D10 heavy tractor
On its introduction in 1977, the Caterpillar D10 raised quite a few eyebrows: firstly because of its sheer size and secondly the odd configuration of the...
The Terex TS-18 motor scraper
Breaking away from traditional Terex design philosophy, the TS-18 twin powered motor scraper was an entirely new machine from the ground up. The only link...
The Caterpillar 613 scraper
Introduced in 1969, the Caterpillar 613 has been with us in various configurations for 43 years covering five different models and is the most successful...
The Allis-Chalmers HD-20 tractor
In production for just three years, the HD-20 was the stepping stone between the powerful HD-19 and the very successful HD-21. RICHARD CAMPBELL delves into...