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2. Excavator - Wikipedia

   en.wikipedia.org/wiki/Excavator

   Excavators are heavy construction equipment primarily consisting of a boom, dipper (or stick), bucket, and cab on a rotating platform known as the "house" [1]. The modern excavator's house sits atop an undercarriage with tracks or wheels , being an evolution of the steam shovel (which itself evolved into the power shovel when steam was replaced ...

3. Power shovel - Wikipedia

   en.wikipedia.org/wiki/Power_shovel

   Power shovels are a type of rope/cable excavator, where the digging arm is controlled and powered by winches and steel ropes, rather than hydraulics like in the modern hydraulic excavators. Basic parts of a power shovel include the track system, cabin, cables, rack, stick, boom foot-pin, saddle block, boom, boom point sheaves and bucket.

4. Steam shovel - Wikipedia

   en.wikipedia.org/wiki/Steam_shovel

   Otis excavator. 1841. Grimshaw of Boulton & Watt devised the first steam-powered excavator in 1796. [1] In 1833 William Brunton patented another steam-powered excavator which he provided further details on in 1836. [2] [3] The steam shovel was invented by William Otis, who received a patent for his design in 1839. The first machines were known ...

5. Bucket-wheel excavator - Wikipedia

   en.wikipedia.org/wiki/Bucket-wheel_excavator

   Bucket wheel excavators and bucket chain excavators take jobs that were previously accomplished by rope shovels and draglines. They have been replaced in most applications by hydraulic excavators , but still remain in use for very large-scale operations, where they can be used for the transfer of loose materials or the excavation of soft to ...

6. Dragline excavator - Wikipedia

   en.wikipedia.org/wiki/Dragline_excavator

   A dragline bucket system consists of a large bucket which is suspended from a large truss-like boom (or mast) with wire ropes. The bucket is maneuvered by means of a number of ropes and chains. The hoist rope, powered by large diesel or electric motors, supports the bucket and hoist-coupler assembly from the boom. The dragrope is used to draw ...

7. P&H Mining - Wikipedia

   en.wikipedia.org/wiki/P&H_Mining

   P&H excavators that started out in the 1920s with dipper and bucket payloads of about 500 pounds / 226 kilograms and dipper and bucket capacities of 0.5 cubic yard / 0.382 cubic meter would evolve into massive and powerful electric mining shovels with maximum dipper payloads of 120 tons / 109 tonnes and maximum capacities of 82 cubic yards / 62 ...