Features > Quarry Classics
Machines that have shaped the history of quarries
Crushing heritage
Cone crushers are now accepted technology but in the 1920s the Symons Brothers innovation was an unknown quantity, although an enduring one with some original units still in use. Claire Symes repo.. Read more..
On track
Mike Woof reflects on the development of the crawler track and its significance for the construction and extractive industries The invention of the crawler track was a significant development for the.. Read more..
Chicken or egg?
Which manufacturer was the first to develop an articulated dump truck? Mike Woof discusses the origins of the ADT .. Read more..
Making the first break
Early hydraulic breakers were based on rockdrill technology but there is some debate as to whether Montabert or Krupp developed the first unit. Mike Woof reports .. Read more..
Dragline mobility
For removing overburden and opening up a new area of an extraction operation, the dragline is one of the most efficient tools available. Mike Woof reviews their development .. Read more..
Heavy heritage
Caterpillar's rigid dump trucks are a well established range but their origins date back 45 years to the 32tonne 769 machine. Mike Woof looks at the company's original concept When Caterpil.. Read more..
