Dredger

These professional machines are generally used for taking out sand and rubble from lake, pond, river and sea. And also they are used for cleaning lake, and getting wet clay from dams. These machines are manufactured in the light of superior German technology. The diving depth of the machines is ranging up to 100 meters according to the model type. Bridge columns attached to the pontoon and the grab mounted below the crane are the main components of the system. The working principle of the system; The grab diving into water with open mouth reaches the bottom of water and closes by rope to get material. Then grab is pulled up with rope drum. Water filled in the grab is waited to flow through the slots and the grab releases the material in hopper. Coarse material is separated from hopper grid and the material passing through the grid is being pre-screened before being transferred to land by belt conveyors on pontoon. TYPE TECHNIC Grab Capacity Grab Grab Volume (At 20 m. Diving Diving diving depth) Depth Drive KAK 140 4.2 m3 180 m3/h 45 m 170 kW KAK 180 5.5 m3 210 m3/h 50 m 240 kW KAK 220 6.0 m3 320 m3/h 80 m 300 kW KAK 240 6.8 m3 360 m3/h 80 m 300 kW KAK 300 8.0 m3 410 m3/h 80 m 400 kW KAK 360 10.0 m3 480 m3/h 100 m 520 kW KAK 400 12.0 m3 530 m3/h 100 m 625 kW

The JLCSD-150 Cutter Suction Dredger of steel construction, non self-propelled, dismountable type, is able to berth and dredge at any waters both in the coastal area and inland rivers, with similar conditions to that in navigation area “A” or below the “A”-line specified in code for inland river steel engineering ship manufacture of P.R.China. The dredger can be used to excavate and transport cohesive sediment below the class ? specified in code for dredging engineering construction technique issued by Ministry of Water Resources(MWR) of P.R.China. In the course of technical designing, we have considered special requirements for local tropical climate conditions such as meteorological and waters distributing state etc. It’s hull consists of a main pontoon and two side pontoons, which is to be easy to dismantle or mount for transportation by road, rail or water, and is to be easy to reassemble at project site.The engines and dredge pump are located in the center pontoon,the 2 side pontoons serve as fuel bunkers,ballast tanks and storage tanks. The dredger is powered by diesel engines. The main diesel engine is to drive the dredge pump, and in the free part of the engine, one set of power distributor is equipped, to supply power for all other equipments such as cutter, swing and ladder winches, and the spud rams etc. The spacious control cabin is ergonomically designed with 360 degree view. All the operation buttons, swifts, indicators, gauges are equipped on the control desk. Only two operators can control all the dredger in the operation room. The dredger is painted by 4 layers of marine paint to protect from the corrosion. The ZINC anode can be used to give better anti-corrosion function.

These dredgers are highly flexible in use. The modular structure and tight design allow the dredgers to work even in shallow river and waterways. Different arrangements of sand pumps and cutters make sure the dredgers can work in different circumstances like sand , stones, mud , etc. In container or bulk ship. Our field engineer will guide to assemble the machine at your working site and train your staff.

20 inch cutter suction dredger Type: jlcsd-500 Principal characteristics Overall length*width*depth 44*9.0*2.5m Main pontoon(length*width*depth) 20*4.4*2.4m Maximum standard dredging depth 18m Maximum mixture capacity 4500m3/h Discharge distance 3000m Dredge pump 22/20” Power at shaft 1090kw Driven through hydraulic coupler Engine Diesel engine: jichai h12v190zlc1 1580kw Cutter Power at motor 250kw Size 1800mm Rotation speed 30rpm Winches Ladder winch 1 unit Swing winches 2 units All winches driven by independent hydraulic system. Spuds Length 22m Diameter 630mm In container

Gold pinning dredger ItemParameter Capacity100t/h Floating body19*2*0.9m Power31kw Total22.5t Mud content

TYPE Bucket Volume Capacity Diving Depth Bucket Drive E2-L 80 liters 170 tons/h 6 m 30 kW E3-L 125 liters 250 tons/h 8 m 45 kW E4-L 175 liters 370 tons/h 10 m 55 kW

For ship inspection certificate, we can make the following dredgers: 200M3,400m, 3800M3,1200M3,2000M3,3000M3,3500M3,5000M3. The company can make dredgers of the following depth: 2M, 5m, 10m, 15m, 20m, 25m, 35m. The company can make the following transport mileage dredger 100m, 200m, 500m, 800m, 1000m, 1500m, 2000m, 2500m, 3000m. Our Dredger and desilting vessel are customized according to customer's requirements and construction conditions and environment. The product type is different, the product price also can have the different concrete negotiable. The work flow undefined first uses the winch arm rest two test cables and the anchor traction fixed to the two tests to fix the cutter suction dredger with the positioning post behind. The cutter is placed in the underwater mud layer (see figure 2) by operating room button control, the cutter head is rotated, the riverbed mud layer is cut and stirred (see figure 3) , and the mud-water mixture is pumped up through the suction pipe (see figure 5) through the suction pipe (see figure 4) , the mud-water mixture is piped (see figure 6) to the desilting site (see figure 7,8) for desilting.

Cutter suction dredger is widely used. It can be used for dredging, river and pool excavation, river dredging, channel excavation, reclamation by pumping filling, etc. in rivers, lakes and sea

China Classification Society (CCS) and foreign classification societies, completes the task of new ship building in a shorter time better, and provides the construction side with real-time technical operation guidance.