Payment & Shipping Terms:
|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|
offshore pedestal crane,
sand dredging machine
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
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;
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.
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
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
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
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)
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
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.
Contact Person: Colinniu