Views: 0 Author: Site Editor Publish Time: 2026-06-11 Origin: Site
The Watermaster amphibious dredger is a self propelled floating machine designed for sediment removal in water bodies with restricted access. Unlike conventional dredgers that require launch ramps or minimum water depths of two meters, the Watermaster amphibious dredger operates in water as shallow as half a meter. This machine combines an excavator arm, a cutter pump system, and a pontoon based undercarriage that moves on tracks in swampy terrain. ITECH Co.,Ltd. supplies this equipment to clients in lake restoration, port maintenance, and mining tailings management.
The Watermaster amphibious dredger uses a hydraulic cutter head to loosen compacted sediments. The cutter head diameter ranges from six hundred millimeters to nine hundred millimeters depending on the model. The slurry is then pumped through a discharge pipe with diameters of two hundred millimeters to three hundred millimeters. Maximum pumping distance for the Watermaster amphibious dredger reaches fifteen hundred meters horizontally with a ten meter vertical lift. Production rates vary from eighty cubic meters per hour for sandy silt to two hundred cubic meters per hour for loose organic material. The amphibious design allows the Watermaster amphibious dredger to walk on soft ground using steel track pads with ground pressure below zero point three kilograms per square centimeter. This feature enables operation in marshlands where wheeled or conventional floating equipment cannot go. The machine can transition from land to water without assistance. In water, the pontoons provide buoyancy with a draft of only zero point eight meters when fully equipped.
Operational data from projects show that a Watermaster amphibious dredger removes twelve hundred cubic meters of sediment in an eight hour shift when working in non cohesive materials. For cohesive clay, production drops to seventy cubic meters per hour due to higher cutter torque requirements. Fuel consumption averages twenty five liters per hour for the main engine at eighteen hundred revolutions per minute. The hydraulic system pressure is set at three hundred bar. The cutting mechanism rotates at fifty to one hundred twenty revolutions per minute depending on sediment type. For soft sludge, lower speeds prevent excessive wear. For compacted clay or gravel, higher speeds increase production. The cutter ladder lowers to a maximum depth of five meters below water surface. Shallow water operation is possible at half a meter depth when the machine floats.
| Model | Engine Power kW | Pump Diameter mm | Max Production m3 per hour | Operating Weight metric tons |
|---|---|---|---|---|
| Classic | 210 | 350 | 120 | 16 |
| Pro | 250 | 450 | 200 | 20 |
| Heavy | 300 | 500 | 300 | 24 |
Maintenance intervals for the Watermaster amphibious dredger are based on engine hours. The cutter head teeth require replacement every one hundred fifty to two hundred hours when working in abrasive sand. The pump casing wear life is eight hundred hours in silty conditions. The amphibious tracks use sealed bearings that require greasing every fifty hours. ITECH Co.,Ltd. provides a maintenance schedule that includes daily checks of hydraulic oil levels and weekly inspections of the suction screen. Transporting the Watermaster amphibious dredger between sites requires a low bed trailer due to its width of three point one meters and length of eight point five meters when the boom is folded. Operating weight ranges from sixteen to twenty four metric tons depending on the model. The machine meets European emission standards Stage Five for diesel engines. Noise levels at the operator station are seventy eight decibels.
The machine operates in water depths from zero point five meters to five meters without modification. For depths beyond five meters, a boom extension is available.
The track pads provide traction on land while the pontoons provide flotation when the machine enters water. The operator drives directly from the bank into the water without stopping.
The machine handles soft sludge, silt, sand, clay, gravel, and light vegetation. For rock or heavily compacted materials, the Heavy model with reinforced cutter head is recommended.
The pump on a Watermaster amphibious dredger operates at speeds of six hundred to one thousand revolutions per minute, generating a slurry density of twenty to thirty percent solids by weight. Pumping efficiency reaches seventy five percent when the suction pipe is fully submerged and the cutter head is positioned correctly. Operators can monitor pump pressure through a cabin display. When pressure drops below one hundred fifty bar, the suction line may be partially blocked. When pressure exceeds two hundred eighty bar, the discharge line may be restricted. ITECH Co.,Ltd. recommends installing a pressure gauge on both the suction and discharge sides of the pump. Differential pressure across the pump indicates wear in the impeller and casing. A new pump shows a differential pressure of one point two bar at full flow. When differential pressure drops to zero point eight bar, the impeller requires replacement. This measurement method prevents unexpected downtime.
The Watermaster amphibious dredger provides a practical solution for sediment removal in shallow or swampy environments. Its combination of tracked mobility and floating capability allows access to sites that other dredgers cannot enter. With documented production rates and maintenance requirements, this machine suits contractors and government agencies managing waterway siltation. ITECH Co.,Ltd. offers sales, rental, and service support for all models.
