Stationary Sand Mining Cutter Suction Dredger

Our stationary sand mining cutter suction dredger range uses a rotating cutter head to loosen underwater sand and sediment, while a dredge pump transports the resulting slurry through floating and shore pipelines. The dredger uses anchors, rear spuds, side winches and steel cables for positioning during excavation.

Technical Specifications and RYD550 Sand Dredger Configuration

The following specifications are published for our RYD550 cutterhead suction dredger. They provide a concrete equipment configuration within our cutter suction dredger range.

The 900 m³/h figure is the published maximum working capacity, not dry sand production. The 65 m pump head and 3,000 m discharge distance are separate published specifications. Actual sand output depends on slurry concentration, sediment conditions and operating configuration.

Stationary Dredger Positioning, Cutter Head and Slurry Delivery

The published equipment arrangement includes four main systems:

• Hull: Two side pontoons and one middle main pontoon.
• Cutting system: Cutter head, cutter ladder, gear reducer and winches.
• Pumping and delivery system: Submersible dredge pump, main diesel engine, drive shaft, floating pipeline, rubber hoses and shore discharge pipes.
• Positioning and control system: Rear spuds, anchors, side winches, steel cables, hydraulic system and electrical controls.

During operation, the hull is positioned using anchors and rear spuds. The cutter ladder is lowered to the riverbed, where the rotating cutter head loosens the sediment. The dredge pump draws the resulting slurry and delivers it through the discharge pipeline.

The published cutterhead dredge control arrangement uses PLC control, with operations managed from the cabin. Its stated operating crew consists of one experienced operator, one marine engineer and one deck crew member.

Custom Sand Mining Dredger Configurations

We provide custom-made dredger solutions for different project conditions. Our product range covers cutter suction dredgers for sand dredging and other underwater excavation applications.

The published configurations show different arrangements of cutting, pumping, power, hydraulic, positioning and control systems. The final equipment specification is established according to the selected model and project requirements.

Cutter Suction Dredger Manufacturing and Overseas Project Support

We specialize in cutter suction dredger research, design, manufacturing and sales. Our company has more than 200 employees, including 3 senior cutter suction dredger engineers, 8 design personnel, 5 quality inspection personnel and 10 after-sales service engineers.

Our supporting departments include R&D, CAD design, quality control and after-sales service.

For overseas cutter suction dredger projects, we provide on-site mechanical assembly, system commissioning and operator training. Our published service arrangement includes two dredger engineers and one technical translator.

Customers are required to provide two weeks' advance written notice for personnel arrangements. The published service terms state that engineers can arrive within three working days after receiving the official service invitation. International travel, accommodation, meals, local transportation and related service expenses are subject to the agreed contract terms.

Related equipment and components in our product range include work boats, HDPE pipelines, rubber hoses, floaters and floating working platforms.