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  2. Hydromill trench cutter - Wikipedia

    en.wikipedia.org/wiki/Hydromill_trench_cutter

    Base machine, usually a crawler crane, of adequate capacity Hose handling system, for both hydraulic and slurry hoses; these systems can use either a hose drum or a hose tension design Hydraulic cutter, which typically consists of two cutter wheels powered by a hydraulic motor , a slurry pump , and flaps to control its direction in case of ...

  3. Lattice boom crawler crane - Wikipedia

    en.wikipedia.org/wiki/Lattice_Boom_Crawler_Crane

    The concept of a crawler crane undercarriage was first developed by the Bucyrus Company of South Milwaukee, Wisconsin in 1911. The first model, a Bucyrus gasoline-engine powered 'Type 14' dragline (usable with crane hook) had a standard 18.3m (60ft) lattice boom, a 4.27m (14ft) diameter swing ring and the crawler version weighed 47t (52USt).

  4. Crane (machine) - Wikipedia

    en.wikipedia.org/wiki/Crane_(machine)

    Crawler cranes range in lifting capacity from about 40 to 4,000 long tons (44.8 to 4,480.0 short tons; 40.6 to 4,064.2 t) as seen from the XGC88000 crawler crane. [58] The main advantage of a crawler crane is its ready mobility and use, since the crane is able to operate on sites with minimal improvement and stable on its tracks without outriggers.

  5. Hydraulic pump - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_pump

    Fluid flow in an external gear pump. A hydraulic pump is a mechanical source of power that converts mechanical power into hydraulic energy (hydrostatic energy i.e. flow, pressure). Hydraulic pumps are used in hydraulic drive systems and can be hydrostatic or hydrodynamic. They generate flow with enough power to overcome pressure induced by a ...

  6. Manitowoc Cranes - Wikipedia

    en.wikipedia.org/wiki/Manitowoc_Cranes

    A Manitowoc Model 999 lattice-boom crawler crane. The Manitowoc lattice boom crawler crane product line has 16 products and two capacity-enhancing attachments. Manitowoc lattice-boom crawler cranes was the beginning of Manitowoc Cranes until the major acquisitions in 2001. In 1969, Manitowoc introduced its flagship crane, the Model 4100W.

  7. Excavator - Wikipedia

    en.wikipedia.org/wiki/Excavator

    The two main pumps supply oil at high pressure (up to 5000 psi, 345 bar) for the arms, swing motor, track motors and accessories while the third is a lower pressure (≈700 psi, 48 bar) pump for pilot control of the spool valves; this third circuit allows for reduced physical effort when operating the controls. Generally, the 3 pumps used in ...

  8. Crawler excavator - Wikipedia

    en.wikipedia.org/wiki/Crawler_excavator

    A crawler excavator, also known as a track-type excavator or tracked excavator, is a type of heavy construction equipment primarily used for excavation and earthmoving tasks. It is characterized by its tracked undercarriage, which provides superior mobility and traction compared to wheeled excavators, especially in soft, uneven, or unstable ...

  9. Axial piston pump - Wikipedia

    en.wikipedia.org/wiki/Axial_piston_pump

    Cutaway side-view diagram of an axial piston pump 3-D rendering of an axial piston pump with the parts labeled Animation of an axial piston pump in operation. An axial piston pump has a number of pistons (usually an odd number) arranged in a circular array within a housing which is commonly referred to as a cylinder block, rotor or barrel.