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10m3 Clamshell River Sand Dredging Machine With Electromagnetic Brake 15~23.5m Working Redius

Categories Offshore Marine Cranes
Brand Name: Major
Model Number: GD
Certification: CE/ISO/GOST/SGS/BV/TUV
Place of Origin: Henan, China
MOQ: 1 Set
Price: Negotiable
Supply Ability: 5000Sets Per Year
Delivery Time: 15days - 100days
Packaging Details: Nude packing or Wooden Packing
Material: Steels Q235, Q345, etc.
Working Redius: 15~23.5m
Rated Loading Capacity: 5-80t
After-sales Service Provided: Engineers Available To Service Machinery Overseas
Feature: Hydraulic Telescopic Boom Cranes
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    10m3 Clamshell River Sand Dredging Machine With Electromagnetic Brake 15~23.5m Working Redius

    10m3 Clamshell River Sand Dredger Machine With Electromagnetic Brake


    10m3 Clamshell River Sand Dredger Working principle


    Using grab which connection the wire rope, rely on the grab selfweight, in the water, scraping mud by closed grab.

    Then through rotary hoisting machinery, reservation will grab up to the height,turning to the predetermined height

    above, the sediment discharge into the hopper dredger. Discharge empty bucket through the crane

    slewing to dredging above, to the next dredging operations.

    USES: mainly used for digging clay, silt, gravel soil, gravel soil and weathered rock


    10m3 Clamshell River Sand Dredger Mainly structure


    Lifting mechanism


    Structure: Motor, Coupling, Brake, Reducer, Drum Group, Bearing, etc;

    Feature:Motor through coupling and reducer drive to Launch and recovery wire rope drum group,

    to realize the grab bucket hoisting, declining, open and close,dig etc action


    USES: mainly used for digging clay, silt, gravel soil, gravel soil and weathered rock;


    Luffing mechanism


    Structure: Motor, Coupling, brake, reducer, reel drum and bearing pedestal etc.

    Function: The motor through the coupling, reduce driven the reel drum launch

    and recovery the wire rope, adjustable the jib beam working angle, control the grab working range.


    Swing mechanism


    Structure: Mainly compose by motor, limit moment coupling, brake, vertical planetary reducer,

    small gear, big gear ring.

    Function: The motor through the coupling, reduce driven the small gear, the smal gear and big

    gearing ring engage, realize the grab bucket rotating movement


    Rigging hook device


    Structure: Electromagnetic brake motor,Elastic plum flower coupling, planetary reducer, reel drum,

    bearing pedestal, and connection pedestal composed.


    Function: The motor through the coupling,reducer driven the reel drum, hook group, to proceed

    the maintenance ship and lift light weight material;


    10m3 Clamshell River Sand Dredger Shaft bracket assembly


    Structure:It’s composed by forestay, backstay, middle of jackstay, luffering pulley group, gran open

    and closed, lift pulley group, torque limit sensor.


    Function:Through the wire rope and pulley with lift mechanism, luffering mechanism, and jib frame

    realize the grab bucket raise, open and close, luffer and so on action


    Turret assembly


    Structure: Turret structure, jib frame hinged support, above table roller composed.


    Function: All of important Stress components installation in the turret.


    10m3 Clamshell River Sand Dredger Rotary support and cylinder


    Structure: It’s composed by the more support roller rotary support, central pivot , cylinders

    structure,under the table roller structure.


    Function: It’s the most important components to connect the turret and ship, it have a certain

    rigidity and intensity, to ensure the dredger safe under various conditions.


    Jib frame assembly


    Structure: Jib frame structure, rail pulley group, luffering pulley group, under hinge shaft

    device,riding wheel device.


    Function: Grab is the most important link component between the turntable, it have a certain

    rigidity and intensity, meet the requirements of equipment in the entire life cycle of fatigue.


    10m3 Clamshell River Sand Dredger Grab


    Structure: It’s composed by grab tooth, jaw plate, upper beam, open and close pulley group,

    connection column, toothholder, rope guider roller.

    Function: Grab dredge working device, through raise(closed) mechanism, luffering mechanism,

    rotation mechanism cooperate with each other to realize mining operations;

    10m3 Clamshell River Sand Dredger Technical parameter

    Drum rated tension:70t

    Lazy arm length:30m

    Working radius:15~23.5m

    Lazy arm working angle:71°~51°

    Garb model:18m³×45t(self weight)

    Grab lift speed:0~60m/min

    Grab wire rope :44ZAB-6×36WS+IWR-1770

    Rotation speed:1.2r/min

    Lazy arm luffering time:60s

    Lazy arm luffering wire rope:34-ZAB6×36WS+IWR-1770

    Max. Lift height:10m(Water surface)

    Max. Dredging depth:50m(Vertical distance below the surface)


    10m3 Clamshell River Sand Dredger Machine With Electromagnetic Brake


    1. PLC and Visual simulation system:

    PLC control system is greatly improved the hoisting lift and lowering speed control and stop empty

    operating performance, make the elevator operation more simple.

    Visualization simulation software: Grab dredger under water operation meet dig dug and peace dug

    intelligent visualization


    2. Heavy digging control system:

    Heavy digging control system greatly improve dredging efficacy of the , make dredging work more smoothly

    and reduce drivers operating intensity.
    3. Fixed dredging depth control system:

    Fixted dredging depth control system greatly improve underwater dredging work quality,make dredging

    depth be fixed and avoid over dredging waste.
    4. Satellite positioning dredging construction system:

    Satellite positioning dredging construction system will do timely determination of hull and grab position,

    rapidly and accurately display the excavating position of ship and grab trajectory, ensure high efficiency, high

    precision of the dredging engineering construction.


    5. Flat digging control system
    Flat digging control system can store several type grabs’ work processing procedures for the users to

    change grabs in accordance with work. By using such flat digging system, we can not only make digging face

    level to meet the dredging project quality requirements, but also can relieve fatigue of drivers.
    What’s more,our accuracy of flat digging is 15 ~ 25 cm, better than all similar products’ accuracy of 50 cm at

    home and abroad. meet all kinds of marine waterway dredging engineering.


    6. Mining depth and grab opening control system
    Our grab dredger is equipped with a data depth gauge and simulated bucket opening degree gauge , which

    indicating working depth and grab opening degree.


    7. Depth correction system


    Depth correction system is very important in dredging management system. When the grab

    according to work requirement set by the depth of the dredging sank to the bottom, gran dredger

    will swing, boom luffing and tilt by hull, the influence of the change in the tide heights, cause

    errors in the dredging depth, this device can be caused by the impact on the error correction,

    ensure the accurate of the grab dredging depth of the water.


    Quality 10m3 Clamshell River Sand Dredging Machine With Electromagnetic Brake 15~23.5m Working Redius for sale
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