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The dumping is permitted through six single-bottom doors measuring 1,620mm by 4,600mm.

A jet pump, driven by a three-speed 500kW motor, is used to fluidise the cargo. This pump is driven by a caterpillar 3516b diesel engine with a rating of 1,491kW at 1,600rpm. The cargo can also be pumped to the shore by a 20ft modular dredge pump and a modular bow connection. The grab deposits the aggregate on a travelling feeder conveyor-belt system. To ensure that the hopper’s contents are as dry as possible, there are 12 large dewatering wells, drained by pumps. The maximum capacity at start is 1,800m³/h (3,200t/h). The fully automated grab unloading system is designed for an average capacity of 1,500m³/h (2,600t/hr) using a 20m³ net volume grab. The grab is hoisted and controlled using two wires, each running over a 400kW winch on top of a fixed frame. In order to accommodate the grab unloading system, the aggregates are unloaded ‘dry’.

There are three discharging mechanisms for the cargo – dry, wet or dumping. A wire on the suction head winch is controlled by a swell compensation system with a reach of 3m, translating to a 6m movement at the suction head. The suction head is designed to remain constantly level on the seabed, even if the bed is undulating or the dredger is turning. This tube is lowered and retrieved using three gantries and hydraulically driven winches The flexibility is enabled by a cardan joint between the upper and lower part of the tube. The length of the tube is such that it can dredge 60m below the waterline when at an angle of 60°. At the top of the tube – where it enters the ship – is a hydraulically operated inlet gate valve. The suction tube linking the head with the vessel has a diameter of 700mm. The system is controlled by regulating the electric motor.

The pump and motor hang in an open frame support construction for easy access for maintenance and repair. Than that of similar dredging installations in the aggregate market. This arrangement makes the dredging system 37% more powerful This pump is a three- bladed impeller system which is directly driven by a 1,700kW electric motor. The vessel can dredge by means of a high-efficiency HRMD 141-30-70 submerged dredge pump.