High quality 150 cubic meter per hour amphibious excavator used in the river

High quality 150 cubic meter per hour amphibious excavator used in the river 

An amphibious excavator (also known as a swamp excavator, marsh buggy, or floating excavator) is a specialized piece of heavy construction equipment designed to operate efficiently in soft terrains, wetlands, shallow waters, and deep-water environments.

By combining the upper structure of a traditional hydraulic excavator with a specialized amphibious pontoon undercarriage, this machine bridges the gap between conventional land-based excavators and marine dredging vessels.

Key Structural Components

· Amphibious Undercarriage (Pontoons): The core feature. It consists of two large, hollow, airtight steel or aluminum pontoons. They provide the necessary buoyancy to keep the entire machine afloat on water.

· Track Chains and Cleats: Multi-strand, heavy-duty track chains run around each pontoon. They are equipped with high-tensile steel or aluminum track shoes (cleats) that act as paddles to propel the machine through mud and water.

· Upper Excavator Structure: A standard 360-degree rotating cabin, engine, and hydraulic system (typically sourced from major brands like Caterpillar, Komatsu, or Hitachi) mounted on top of the pontoon chassis.

· Spud Stabilizers (Optional): Vertical steel pillars attached to the pontoons. They can be hydraulically lowered into the riverbed or lake bed to anchor the excavator and prevent drifting during heavy digging.

· Supplemental Side Pontoons: Additional floating blocks can be attached to the outer sides of the main pontoons to increase stability when operating in deeper waters.

· Core Working Principles

· Ultra-Low Ground Pressure: The massive surface area of the hollow pontoons distributes the machine's weight evenly. This creates an extremely low ground pressure—often less than 0.15 kg/cm² (2.1 psi)—preventing the excavator from sinking into quicksand, swamps, or deep mud.

· Dual Propulsion: On land or in thick mud, the tracks crawl like a standard tank. In open water, the track cleats act as a paddle wheel system, allowing the excavator to navigate forward, backward, and steer itself without a propeller.

· Buoyancy vs. Digging Balance: The pontoons are engineered to support the excavator’s weight plus the maximum hydraulic payload of a fully loaded bucket without capsizing or tipping over.

· Primary Applications

Amphibious excavators are indispensable for projects where the terrain is too soft for conventional machinery and too shallow for floating dredgers:

· Wetland Rehabilitation: Restoring swamps, cleaning marshes, and managing nature reserves.

· Environmental Remediation: Clearing oil spills, removing hazardous sludge, and cleaning industrial settling ponds.

· Dredging & Waterway Maintenance: Deepening shallow rivers, widening canals, and clearing silt from lakes, reservoirs, and fish ponds.

· Flood Control & Infrastructure: Building levees, constructing dikes, maintaining floodplains, and installing coastal erosion barriers.

· Vegetation Control: Removing invasive aquatic weeds, clearing water hyacinths, and uprooting swamp trees.

· Utility Installation: Laying underwater cables, pipelines, and fiber optics across rivers and wetlands.

· Key Technical Advantages

· Unmatched Terrain Versatility: Seamlessly transitions from dry land to mud, swamps, and open water without any mechanical adjustments.

· Cost-Effective Operations: Eliminates the need to build expensive temporary roads, mats, or floating platforms required by standard land excavators.

· 360-Degree Operational Radius: Maintains full rotational capability, allowing operators to dig, lift, and dump in any direction while afloat.

Long-Reach Capabilities: Often equipped with customized long-reach booms and arms (ranging from 10 to 18+ meters) to maximize the dredging area from a stationary position.

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