Leader Dredger Co., Ltd
Leader Dredger Co., Ltd.
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Dredger Ship With A Dredging Depth Of 14 Meters And A Discharge Distance Of 1800 Meters
1. Why Choose Leader Dredger Hydraulic Dredger Ship?
1. Customized designs can be provided according to customer project requirements. We have our own design team and are supported by China Ship Design Institute and professional colleges.
2. All our workers are skilled and have decades of experience in ship design.
3. Reputable spare parts will be used, such as the world-famous Cummins engine, Siemens PLC control system, Rexroth or Vikers hydraulic pumps, etc.
4. Each finished product will be tested before delivery to ensure smooth operation of the product.
5. The dredger ship is detachable and can be easily disassembled and assembled. Therefore, it can be transported by road, rail, and water more conveniently.
6. Professional engineers will be sent to the project site to help with assembly, commissioning, testing and training.
2 . About Dredger Ship Parts Introduction
About 18 Inch Dredger Ship Cutter Head
For one cutter head, there are 5 blade,6 or 7 teeth equipped on one blade. There is material Cr. for easy-wearing proof. Cutter head is driven by hydraulic motor; cutter bearing has lubrication seal-in units.
The cutter motor is hydraulic driven low speed and high torque heavy duty design. The cutter motor is mounted on the cutter front piece on the ladder end. A special cover is provided to protect the motor from damage due to sand, rocks and debris. The cover can be removed from easy inspection and maintenance.
About 18 Inch Dredger Ship Hydraulic winch
To support the ladder, a hoisting winch is provided at the front of the main pontoon, which is installed on a solid foundation. The winch is hydraulically driven by the reduction gear box in the winch structure. The winch has a disc brake, which is automatically activated when the pressure drops. The winch is operated from the control room
and has a fixed speed.
For the lateral pull of the ladder, there are two winches at the front of the main pontoon, which are installed on a solid foundation. The winch is hydraulically driven by the reduction gear box in the winch structure. The winch has a disc brake, which is automatically activated when the pressure drops. The winch is operated from the control
room with variable speed.
About 18 Inch Dredger Ship Hydraulic system
The hydraulic system is the most important part of the river sand dredger and bucket wheel dredger. The hydraulic system is very demanding and strict; it is the main artery of the entire sand dredger. The side traction winch of the dredger, the lifting winch and the cutting head are driven by hydraulic motors.
We use hydraulic pressure to drive the entire dredger, including winches, cutting machines, hydraulic cylinders, etc. The valve is REXROTH, and the hydraulic control system is SIEMENS PLC.
About 18 Inch Dredger Ship Dredge Pump
The dredge pump is high efficiency made from wear resistant casting impeller and liners fitted on heavy duty shaft and high quality roller bearings.
The impeller is fitted on the shaft by trapezoid thread directly machine on the shaft end. The shaft sealing is a water cooled sealing that can be replaced after wear life. The impeller is a special type of double curved vanes high efficiency and wear life optimized tested in laboratory and onboard of dredgers. The impeller is fixed on the shaft
by trapezoid thread machined directly in the impeller hub.
The pump casing has a shape of a volute designed of a high efficiency and wear life optimized tested in laboratory and onboard of dredgers. The pump liners are made of high wear resistant materials and thick wall thickness to maximize the wear life. The casting covers are made from fabricated steel stiffened where necessary and
machining to fit the case and the liners.
3. Dredger Ship Feature
1. One-man operation.
2. New highly effective cutter drive system
3. Reliable hydraulic system.
4. Fresh water cooling system
5. Completely assembled and fully tested before delivery.
6. Very simple and fast assembly with experienced engineers.
7. Standard design, allowing short delivery times.
8. Standard spare parts available from stock.
9. Designed as standard to qualify for Coastal Waters Certificate.
10. Optional equipment available.
11. High efficiency, large output and long pump distance.
12. Disassembly and assembly are very simple and quick, whether it is floating or on land, simple operation and easy to control.
13. The economy is performing well. The excavation and transportation of materials can be completed at one time.
14. Efficient fuel consumption and lowest overall operating cost.
15. Easy access to all parts, especially the vulnerable parts of the edge pump.
16. Dredgers can be manufactured according to customer requirements.
4. Leader Dredger Service
The Leader Dredger service aims to provide value-added services for dredgers, whether this involves a single service or a complete set of services, such as integrated logistics support or long-term service agreements.
1. We will send engineers to help you install the dredge, follow up the operation and debug.
2. We can teach your local workers to operate the dredger maturely.
3.We have offices in many countries. We can provide long-term after-sales service
4. Except for worn spare parts, the warranty period of our dredgers is usually one year
5. Leader Dredger LD3700 Technical Specifications
A . Dredging Features
| Standard dredging depth(m) Maximum mixture | 14m |
| capacity(m/h) | 3700m³/h |
| Solid capacity(approx) | 740m³/h |
| Dredging pump mode | 500/450mm |
B . Principal characteristics
| Overall length(m) | 35m |
| Breadth(m) | 7m |
| Draught(m) | 1.3m |
| Discharge distance(m) | 1800m |
| Total dry weight approx(MT) | 130MT |
| Ladder length | 19m |
C . Dredge pump: Australia technology Pump
| By alloy cast iron material for better abrasion resistance, abrasive, hardness, more than68HRC. | Bigger working capacity, more efficiency, driven through gearbox. |
| Maximum mixture capacity(m/h) | 3700m³/h |
| Solid capacity(approx) | 740m³/h |
D . Engine
| Main diesel engine(Cummins) | CAT C32 746kw |
| Auxilary engine | CAT C9.3 218KW |
| Total fuel consumption | ≤154kg/hr |
| Extra emergency generator set | 24kw(32Hp) |
6. Hydraulic Cutter Suction Dredger Desgin
• Hydraulic pumps drive cutter, winches spud rams
• Main engine drives pump through gearbox
• pump inside engineroom
• Famous European-brand electric system and hydraulic system
• Engine room big and cool, and easy to maintain
• Dredge can be equipped with several options such as
• Design of high production long distance and reliability, easy control, simple maintenance
• Australian technology pump
Anchor booms/Spud carriages/Increasing The Dredging Depth/Self-Propell/Pump Booster station/GPS dredging System
7. Hydraulic System: German Brand Hydraulic Parts:
To drive: 1 cutter header, 1 ladder winch, 2 side winches,2 spud rams, 2 hydraulic pumps, and a lot of hydraulic valves The extra emergency pump can drive all hydraulic parts using the extra emergency generator set.
8.Leader Dredger Cutter Suction Dredger Customer
9. Cutter Suction Dredger Picture