18-inch cutter suction dredger

Cutter suction dredgers are now widely used, capable of operating in rivers, lakes, and seas. They are simple to operate and easy to control; the operator can easily maneuver them from the cab. Their high efficiency, large output, and long pumping distance are key advantages.

Taking a common 18-inch cutter suction dredger as an example, it is equipped with a 1103kW main engine and a 350kW auxiliary engine. The main engine provides strong power support, ensuring the smooth operation of major components, while the auxiliary engine ensures the normal operation of auxiliary components. The two engines working together guarantee high efficiency.

It is equipped with a 450 dredging pump, with a clean water flow rate of approximately 3500-4000 m³/h and an hourly output of 525-800 m³/h, sufficient to meet demand. Its powerful suction can transport silt and sand to silt piles several kilometers away.

Precautions

1. After starting the dredger engine, let it idle for about 10 minutes. Once the water temperature, oil temperature, and oil pressure reach the specified requirements, production can begin.
2. Before the engine drives the sand pump, the operator in the control room should first turn on the 24V main power switch on the dredger’s control panel.
3. Lower the bridge frame and suction pipe using the dredger’s winch to submerge the cutter head in the water, then start the flushing pump.
4. Activate the gearbox and sand pump using the engagement switch on the control panel, allowing the engine to drive the gearbox and power the sand pump. Gradually increase the engine speed to the specified level.
5. When the dredger is making a fan-shaped movement during construction, the positioning stakes must never be inserted into the mud simultaneously. This is absolutely prohibited during operation.

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