Hydraulic Dredge For Sale - Leader Dredger
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SUMBERSIBLE PUMP DREDGER LEADER DREDGER LD4500SP

Hydraulic Dredge 3D - Leader Dredger
TYPE Submersible pump cutter suction dredger
MODEL LD4500SP
APPLICATION Capital mining and maintenance dredging
MIXTURE CAPACITY 3500-4500m3/h
SOLID CAPACITY 1050-1350M3/h
DISCHARGE DISTANCE 2000m
DREDGING DEPTH MAX 20m
SUCTION/DISCHARGE PIPE DIA 550/500mm
MAIN ENGINE CAT 3512C 1257KW
AUXILIARY ENGINE CAT C18 447KW
CUTTER POWER 190KW

MAIN FEATURES

Hydraulic drive, reduce fuel consumption and improve dredger work efficiency.
The dredging pump is made of alloy cast iron material, which has better wear resistance and the hardness exceeds 68HRC.
Provide a variety of standard options, can be customized.
With a separate lounge for the crew to rest.
Submersible dredge pump for high mix density.

DREDGING EQUIPMENT SPECIFICATIONS

General
Type
Inboard pump cutter suction dredger
Mode
LD4500SP
Appliation
Capital mining and maintenance dredging
Dredging Features
Standard dredging depth(m)
MAX 20m
Mixture capacity
3500-4500m³/h
Solid capacity
1050-1350m³/h
Discharge distance
2000mm
Suction/Discharge pipe dia
550/500mm
Principal characteristics
Overall length
40m
Breadth
9.4m
Draught
1.6m
Ponton height
2.5m
Total dry weight approx
280MT
Ladder length
28m
Engine
Main diesel engine
CAT 3512C 1257kw
Auxilary engine
CAT C18 447KW
Total fuel consumption
≤272kg/hr
Extra emergency generator set
45kw(60Hp)
Dredge pump
Australia technology Pump
Maximum mixture capacity(m/h)
3500-4500m³/h
Solid capacity(approx)
1050-1350m³/h
By alloy cast iron material for better abrasion abrasive, hardness, more than68HRC. Bigger more efficiency, driven through gea rbox.
Cutter
Power at shaft
190kw
Size
1700mm
Rotation speed
30rpm
Winches
Ladder winch
1urnit
Swing winches
2units
All winches driven by independent hydraulic system.
Spuds
Quantity
2pcs
Length
26m
Diameter
680mm
Deck crane
Utting weight
4MT
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HYDRAULIC DREDGE FOR SALE GALLERY

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Hydraulic Dredge Accessories Introduction LD4500

Hydraulic Dredge For Sale 3D - Leader Dredger
*Click the green dot in the picture below for further details

Hydraculic System

Leader Dredger's hydraulic system is distributed throughout the dredger and is the core control system of the entire ship. The hydraulic system is a systematic project, with strong professionalism and comprehensiveness.

The main hydraulic components are: driving the reamer, driving the bridge up and down, controlling the ship to swing left and right through the traverse winch, and controlling the positioning pile up and down through the positioning pile cylinder. In addition, the trolley and the running anchor are also driven by the hydraulic system.

The advantages of the hydraulic system include: light weight per unit of power, small inertia, fast response speed, and easy start and stop. The working medium of the hydraulic system has a certain elastic shock absorption capacity, which can make the hydraulic transmission system operate stably and reliably. These advantages just meet the working requirements of the working mechanism of cutter suction dredger. Judging from the current mainstream design, hydraulic transmission is the main transmission method adopted by the dredger dredging equipment.

Dredging System

The dredging system is divided into a control system and a monitoring system, which is a highly integrated system.

Dredging monitoring system:

1. Understand the working status of all parts of the ship
2. Understand the working status of the main and auxiliary machines
3. Understand the real-time status of the hydraulic system
4. Understand the real-time status of the circuit system
5. Understand the operating status of the dredging pump
6. Understand the working status of the gearbox
7. Know the status of the cooling system, etc.

The main advantages of the monitoring system:


1. Improve the accuracy of dredging construction: Construction accuracy is necessary for high-end dredgers. It requires the dredger to neither over-dig nor omission during the construction process, and to obtain an accurate excavation profile.
2. Improve construction efficiency: The work efficiency of the dredger directly affects the construction of related projects, and an efficient monitoring system can shorten the construction period.
3. Improve the working conditions of the operators: In the construction of the dredger, the operation steps of the entire process are simplified, the labor intensity of the operators is reduced, and the faults in the excavation process can be quickly found through the alarm display, saving maintenance time

Electric System

The electrical system of the dredger consists of a main generator set, a backup generator set, an electrical cabinet, a charger and an operating console.

In order to improve the power supply efficiency of the dredging machine power station and ensure the safety, stability, balance and continuous power supply of the entire ship, the dredging machine power station is equipped with a power management system for the entire ship’s electricity. The system is designed for fully automatic management according to requirements.

(1) Separate the main high-power equipment from the ship’s sensitive equipment, such as generators, transformers, frequency converters and motors.

(2) Take isolation and filtering measures for the auxiliary power supply used by the electric propulsion system equipment to avoid using the same power supply with sensitive electronic equipment.

(3) The power generation equipment on the ship, the motor base and shell, the switch cabinet shell, the exposed metal lighting, the metal appearance and shielding layer of all cables, etc. should be grounded, and the metal grounding conductor should be connected to the hull to obtain the smallest ground resistance . The goal

Feature of electrical system

(1) Good economic benefits.
(2) High reliability, high degree of automation and good operability.
(3) Low noise and low vibration.
(4) Wide speed range, large driving force, easy forward and reverse rotation, small size, flexible layout and convenient installation.

Optional Items

Contain:

Trolley system

Anchor rod system

Flowmeter, concentration meter

Relay pump

Service boat

Dredger Spud

The lower end of the full range of Leader Dredger dredger spud is made of solid steel to ensure sufficient strength when penetrating the ground. When lifting the pile head, water can overflow from the two holes above the lower point. At the top, the hoist ring allows the crane to easily change the pile head.

Feature:

1. Made of high-quality steel with high strength and wear resistance. Customers can also order other materials.

2. Longer service life and easy maintenance.

3. Simple disassembly and assembly, can be accurately adjusted.

Dredger Engine Room

Leader Dredger space is far superior to European and American ships, this design is more convenient for good ventilation system and maintenance of cabin components.

Reasonable layout of engine, hydraulic, circuit cold area system, etc., easy to locate and maintain system problems

Driving Cabin

Leader Dredger hydraulic dredge designs the dredger cockpit as an integrated detachable dredger. After disassembly, the maximum height of the dredger can be reduced, thereby improving the trafficability of the entire ship.

The connecting pipes and connecting lines between the dredger cab and the engine room and deck are designed for easy disassembly and assembly of joints to ensure that the dredger can easily disassemble and install the entire cab when passing through a low bridge tunnel. Improve sparse dr. Practicality of the boat

Leader Dredger equips the cab with a larger tempered glass area, which is convenient for the driver to observe the surroundings while driving the dredger

Hydraulic dredge cab is equipped with diesel engine controller, suction pump pressure gauge, vacuum gauge, hydraulic equipment pressure gauge, etc., which can control the dredge system of the entire ship in the cab

Leader Dredger has tested the operating system in the cab for many years and has now achieved the advantages of simple operation, intuitive parameters and strong comfort.

Dredger Winch

The hydraulic winch of the cutter suction dredger is mainly a winch with a large rated load, which is driven by a reliable and low maintenance hydraulic motor.

The hydraulic winch of the dredger uses oil as the working medium, transmits motion through the change of the sealed volume, and transmits power through the pressure inside the oil.

Dredger Body

There is a production design team inside the factory, which can design the hull according to Chinese standards or BV standards, produce welding, and the painting process is in accordance with the standards of sea ships.

Ensure the high strength and corrosion resistance of the hull, so that the entire ship has a longer service life and stable operation.

Dredger Engine

Leader Dredger dredging equipment uses diesel engines.

When we choose the engine brand, we will test the engine performance
1. Matching degree with dredging pump
2. Is the engine power output stable?
3. Continuity of trouble-free operation
4. Fuel consumption
5. Durability
6. Volume and weight
7. After-sales response speed
8. Maintenance costs

A better engine can ensure the practicality, economy and rationality of the cutter dredger

Dredger Pump

Dredging pump is one of the main working parts of cutter dredger. Power consumption generally accounts for 60% to 70% of the energy supply of the whole ship, and its working characteristic parameters roughly represent the performance of the dredger

1. Design of Mud pump shell

The shell of the double-shell pump is not in contact with the mud and is not subject to abrasion, so the double-shell pump is much safer than the single-shell pump. With the protection of the outer shell, the inner shell can be fully utilized. At the same time, the use of high wear-resistant materials for the inner shell can greatly extend its service life, reduce the operating cost of the dredger, and improve the safety performance of the cutter dredger.

2. The overall design of the mud pump

In the design and selection of the suction pump, we will select reasonable parameters according to various conditions such as the dredging depth, soil condition, output, and discharge distance of the customer's construction project. And determine the best working condition point of the mud pump, so as to make the whole ship have better economy.

For example, if the discharge distance of a certain project is far, if you blindly increase the head of a single pump, it will inevitably increase the power and invest more in single-party costs for future projects that are not of this type.

3. Cost optimization of suction pump

Concentration and efficiency are two very important parameters of the suction pump. It is far more economical to increase the concentration percentage point than to increase the efficiency percentage point of the suction pump.

Cutter Head

The reamer cutting system includes all devices that move the reamer, cut the soil, and drive the soil to mix with environmental water.

The reamer system is a process in which the reamer is driven by a frequency conversion motor to rotate at a high speed to crush the underwater soil, and with the rotation of the reamer, the mud mixed with the soil and the surrounding water is sucked away by the mud pump.

In the construction process, especially when digging hard soil or silt sand, the cutter teeth wear more seriously. Therefore, the Leader Dredger adopts the design that the cutter teeth and the cutter are separated. After wear, only the cutter teeth need to be replaced, which facilitates the replacement of different cutter teeth according to different soil qualities and minimizes wear.

Regardless of the dredging tool, it plays an extremely important role in the performance of the cutter suction dredger. Therefore, Leader Dredger has extremely high requirements for the selection of cutter heads:
1. Small leakage
2. The inhalation resistance and the possibility of blockage are small
3. Match cutting power with power equipment
4. Made of wear-resistant materials
5. Reamer head produced by floating ring seal technology
6. Hydraulic power drive
6. Fine manufacturing, simple installation, quick replacement

Desgin

There are 32 people in the technology and design department
12 senior technicians
20 technicians.
Can design and have all kinds of dredgers, civil, warships, marine engineering equipment qualifications.

We can do different types of China Classification Society CCS, American ABS, European BV, Italian RINA standard ships, dredgers, ships, etc.

The design of the cutter suction dredger involves disciplines such as mechanical manufacturing, electrical and electronic, hydrodynamics, computer technology, automation science, materials science, marine meteorology and even nuclear physics, and belongs to the category of system engineering design.

Leader Dredger specializes in analysis and design of dredger hull size, winch bridge, winch system, hydraulic system, positioning pile, mud pump system and its professional design, And repeatedly debug the power system, environment, vibration and noise issues

According to the dredging volume, digging depth index and soil quality of the construction project, the specific performance indexes such as the digging depth, soil breaking capacity and production capacity of the cutter suction dredger are determined.
This design concept is not only widely used in general commercial dredging fields, but also in military, scientific research and engineering fields.
The difference is that dredgers that serve commercial projects can improve the performance of cutter suction dredgers to achieve higher production efficiency and economic benefits, while dredgers used in military and scientific research fields can meet the needs of specific projects. Its economic performance is relatively lower.

In the current economic and social environment, a design that only focuses on technical performance without considering product economic indicators is almost impossible. The cutter suction dredger design is also based on practicality, reliability and other technical indicators, fully considering the economic performance in use, and weighing the unified indicators of technical performance and economic performance to achieve better design results.

Service

The main services we provide are:

  • 1. Pre-sales project consulting
  • 2. Design and solution Suggestions
  • 3. On-site installation guidance
  • 4. On-site and remote training
  • 5. After-sales service
  • 6. Long-term accessories support
  • 7. Whole-process consulting services and other customer life cycle support

a. We guarantee that the free warranty period for fast wearing parts and non-human damage parts is 1 year. Including all hydraulic parts, all electrical parts, all wearing parts and wearing parts

b. One year later, spare parts will be provided at cost price. Like the engine and gearbox, there is after-sales service in the local area. We will first judge the problem and contact their personnel to save time for resolution

c. Lifetime free consulting service, after-sales service, operation guidance


Leader Dredger has 20 years of experience in the dredger production industry and can provide customized dredger production services for the most demanding projects. It is different from other manufacturers that can only produce standard dredges. Leader Dredger has a design and production team composed of more than 70 people, and has completed the design and manufacturing of more than 100 dredgers.

Desgin
Service

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