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  2. Digging bar - Wikipedia

    en.wikipedia.org/wiki/Digging_bar

    Bar with pointed and blunt end. A digging bar is a long, straight metal bar used for various purposes, including as a post hole digger, to break up or loosen hard or compacted materials such as soil, rock, concrete and ice or as a lever to move objects.

  3. Rollover protection structure - Wikipedia

    en.wikipedia.org/wiki/Rollover_protection_structure

    Some tractor operators have raised concerns about using ROPS in low-clearance environments, such as in orchards and buildings. In response, NIOSH developed an Automatically Deploying Rollover Protective Structure (AutoROPS) which stays in a lowered position until a rollover condition is determined, at which time it deploys to a fully extended and locked position.

  4. Breaker (hydraulic) - Wikipedia

    en.wikipedia.org/wiki/Breaker_(hydraulic)

    A breaker is mounted on the excavator on the left side Hydraulic breaker attachment on a skid-steer loader. A breaker is a powerful percussion hammer fitted to an excavator for demolishing hard (rock or concrete) structures. It is powered by an auxiliary hydraulic system from

  5. Rockbreaker - Wikipedia

    en.wikipedia.org/wiki/Rockbreaker

    A rockbreaker is a machine designed to manipulate large rocks, including reducing large rocks into smaller rocks. They are typically used in the mining industry to remove oversize rocks that are too large or too hard to be reduced in size by a crusher.

  6. List of currently active United States military land vehicles

    en.wikipedia.org/wiki/List_of_currently_active...

    Stryker. Stryker 4,466 . M1126 infantry carrier vehicle (ICV) M1126 Stryker (IAV) has two variants, he infantry carrier vehicle (ICV) and the mobile gun system (MGS).; The (ICV) variant has eight additional configurations: mortar carrier (MC), reconnaissance vehicle (RV), commanders vehicle (CV), fire support vehicle (FSV), medical evacuation vehicle (MEV), engineer squad vehicle (ESV), anti ...

  7. Earthworks (engineering) - Wikipedia

    en.wikipedia.org/wiki/Earthworks_(engineering)

    Gabion – Cage full of rock; Keyline design – Landscaping to optimize water usage; Land restoration – Process of restoring land to a different state; Grading (earthworks) – In civil engineering, creating a profile; Spoil tip – Pile built of accumulated spoil; Subgrade – Material underneath a road or track

  8. Rock bolt - Wikipedia

    en.wikipedia.org/wiki/Rock_bolt

    A video on mining safely using rock bolts. A rock bolt is a long anchor bolt, for stabilizing rock excavations, which may be used in tunnels or rock cuts.It transfers load from the unstable exterior to the confined (and much stronger) interior of the rock mass.

  9. Excavator - Wikipedia

    en.wikipedia.org/wiki/Excavator

    For example, Caterpillar's smallest mini-excavator weighs 2,060 pounds (930 kg) and has 13 hp; [8] their largest model is the largest excavator available (developed and produced by the Orenstein & Koppel, Germany, until the takeover 2011 by Caterpillar, named »RH400«), the CAT 6090, which weighs in excess of 2,160,510 pounds (979,990 kg), has ...

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