The Caterpillar 631A scraper
A direct descendent of the 1950’s DW21, the 631A was introduced in 1960 and was the second of Caterpillar‘s new ‘600’ series motor scrapers to...
Category : Classic Machines
The Allis-Chalmers HD-41 tractor
Having led the charge for larger, higher horsepower tractors following WWII, Allis-Chalmers once again was at the forefront of large tractor development when the model...
The Wabco 333 elevating scraper
To date, the largest elevating scraper ever to work in New Zealand, and certainly the most powerful, the Wabco 333FT could trace it’s family tree...
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....
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...