20-Inch Three-Pile Dredger
20-Inch Three-Pile Dredger Qingzhou Yakai Dredging Machinery Manufacturing Co., Ltd. is a professional manufacturing factory
20-Inch Three-Pile Dredger
20-Inch Three-Pile Dredger Qingzhou Yakai Dredging Machinery Manufacturing Co., Ltd. is a professional manufacturing factory focusing on the R&D and production of high-performancedredgers and dredging boats. Our newly launched 2020-Inch Three-Pile Dredger is a new-generation ultra-large heavy-duty fixed-position cutter suction dredger independently developed by our factory, with standardized overall dimensions of 42m × 8.2m × 2.2m and a total weight of 82 tons, serving as the upgraded flagship model of our three-pile dredger product line.https://ykdredging.com/
This premium model is equipped with a 1200kW (1630HP) Weichai 12V marine dedicated diesel engine and a 2020-inch 500PN high-chromium alloy slurry pump, delivering a rated comprehensive slurry flow of 3500m³/h and stable solid sand output of 720m³/h. Capable of effective dredging depth ranging from 3m to 19m, the dredger supports 1500m single-stage straight conveying and up to 2500m conveying distance with an auxiliary booster pump. The 2020-inch three-pile dredger is mainly deployed for offshore shallow water channel deepening, large-scale river regulation, industrial centralized aquaculture base desilting, giant reservoirs and deep-water large terminals, undertaking high-intensity thick-layer sediment removal, large-volume commercial sand mining and comprehensive waterway reconstruction projects. In modern large-volume dredging industries, conventional 8-inch to 18-inch medium and large-sized dredgers are unable to match its 720m³/h solid sand output, while customized oversized self-propelled dredgers feature exorbitant budgets and lengthy delivery cycles.https://vt.tiktok.com/ZSHb8HWXu/
To fill the market gap between medium-sized equipment and super-large customized dredgers, our factory comprehensively upgrades the hull structure, hydraulic positioning system, high-power power assembly and super-large flow pumping unit, releasing this cost-effective2020-Inch Three-Pile Dredger. Featuring ultra-stable fixed anchoring performance, industry-leading super-large conveying capacity and lower long-term operation cost, this 2020-inch dredging boat has become the preferred ultra-large dredger for global large-scale commercial dredging and bulk sand mining projects.
Core Structure & Working Principle
The 2020-Inch Three-Pile Dredger adopts an integrated ultra-reinforced heavy-duty modular structure with an all-steel welded hull, using 10mm thick bottom steel and 8mm thick side steel plates processed by four-layer composite marine anti-corrosion technology to adapt to saltwater and harsh open water working conditions. The complete equipment consists of a dedicated 2020-inch high-flow anti-blockage dredging pump system, customized 2000mm diameter closed crown-type cutter head matched with 6 high-hardness wear-resistant alloy blades, thickened and elongated heavy-duty hydraulic three-pile positioning mechanism, high-torque anti-winding deep-water stirring device, thickened high-pressure wear-resistant conveying pipeline, optional dual-power switching assembly and intelligent full-automatic centralized control system. As the upgraded flagship ultra-large heavy-duty model among our full-range dredging boats, this dredger is fitted with three 22m-length adjustable alloy positioning piles to lock the hull firmly in complex deep-water and shallow sea environments, completely eliminating drifting, shaking and hull tilting faults that frequently occur during long-term full-load operation of small and medium floatingdredgers. The matched 2000mm high-torque cutter head efficiently breaks severely aged hardened sludge, dense river sand, thick shell strata and mixed hard gravel sediment; the supporting 2020-inch large-flow dredging pump continuously sucks high-concentration sand-slurry mixtures and realizes ultra-long-distance high-pressure discharging. All core components of the 2020-Inch Three-Pile Dredger are integrally cast and assembled in our factory in accordance with international ultra-large marine heavy-duty standards, supporting 24-hour uninterrupted high-intensity operation and greatly extending overall service life.
1. Dredging Pump & Three-Pile Positioning Mechanism
Equipped with an exclusive 2020-inch 500PN high-chromium alloy anti-clogging heavy-duty dredging pump and fully upgraded reinforced three-pile positioning system, this 2020-Inch Three-Pile Dredger is specially customized for deep-water areas, offshore shallow sea and high-hardness complex sediment working conditions by Qingzhou Yakai Dredging Machinery Manufacturing Co., Ltd.. The supporting hydraulic stirring system adopts a 2000mm alloy integral cutter head with independent 260kW dedicated cutter power, which boasts stronger crushing performance for hard sediment such as weathered sludge, thick gravel and consolidated riverbed sand. The three sets of thickened 22m integral alloy positioning piles support stepless lifting, real-time hydraulic locking and multi-gear depth adjustment, perfectly adapting to 3-19m underwater working environments and high-hardness irregular riverbeds. Compared with mainstream 18-inch dredgers on the market with a maximum solid output of 525m³/h, our model raises solid sand handling capacity to720m³/h, an increase of nearly 37%. The integrated stirring and suction structure effectively resists winding from dense aquatic plants and prevents pipeline blockage, serving as the core competitive advantage of our high-end large-scale three-pile dredger series.
2. Conveying Pipeline System
The supporting conveying pipeline of the 20-Inch Three-Pile Dredger is forged from high-strength high-chromium manganese alloy wear-resistant raw materials, exclusively customized for ultra-large heavy-duty dredging boats. The pipe wall is thickened by 55% compared with ordinary standard pipelines, capable of resisting strong impact from coarse gravel and chemical corrosion caused by saltwater and high-viscosity dense sludge. It is applicable to long-distance high-pressure transportation of various materials including high-density sludge, coarse river sand, mixed sediment and medium-sized broken stones. The reinforced flange quick-disassembly locking structure simplifies daily installation, replacement and routine maintenance procedures, perfectly matching the rated working parameters of the 20-inch large-flow dredging pump and significantly improving the continuous working efficiency of the 20-inch three-pile dredger.
3. Fuselage & Frame Design
The entire fuselage of the 20-Inch Three-Pile Dredger is welded with extra-thick high-grade marine pressure-resistant steel, and processed with four-layer composite high-efficiency marine anti-corrosion treatment in strict accordance with international ultra-large marine engineering equipment manufacturing specifications. The widened torsion-resistant integral frame greatly enhances the overall stability and pressure resistance of the 20-inch dredger during long-term 24-hour full-load operation. The scientifically partitioned spacious deck independently reserves dedicated operating areas for the hydraulic three-pile system, high-power power unit and pumping assembly, facilitating daily inspection, regular maintenance and quick replacement of vulnerable parts. This 20-inch dredging boat is professionally designed for super-large deep-water scenarios that medium and large-sized conventional dredging boats cannot cover.
4. Power & Control System
Customers can freely select high-power dedicated marine diesel power or industrial heavy-duty dual-electric power mode for the 20-Inch Three-Pile Dredger based on local power supply conditions and project construction cycles. The upgraded full-automatic intelligent centralized control cabinet is independently developed by our senior technical team, supporting real-time data monitoring of dredging flow, pumping lift, positioning pile depth, fuel consumption, equipment load and internal pipeline pressure. The optimized humanized operation panel lowers the operation threshold to the greatest extent, and novice operators can quickly master all operating skills to independently complete all dredging construction tasks. Our factory equips every finished 20-inch three-pile dredger with complete intelligent supporting accessories to help customers realize efficient standardized large-scale construction.
5. Optional Auxiliary System
To meet diversified high-standard construction demands of super-large water conservancy and sand mining projects, our factory provides premium optional auxiliary configurations for the 20-Inch Three-Pile Dredger and other heavy-duty dredgers: all-weather explosion-proof high-brightness lighting system, multi-stage high-precision impurity filtering device, cloud-end remote real-time wireless monitoring module, multi-stage extended high-pressure wear-resistant pipeline assembly and full-automatic anti-shake positioning system, realizing semi-unmanned intelligent auxiliary operation for extreme complex and harsh working environments.
Detailed Technical Specification Table
|
Parameter Category
|
Specification Details
|
Unit
|
Standard Parameters (20-Inch Three-Pile Dredger)
|
|
Basic Information
|
Equipment Type
|
—
|
20-Inch Three-Pile Cutter Suction Dredger (Fixed-Position Heavy-Duty Dredging Boat)
|
|
Main Purpose
|
—
|
Large River Dredging, Offshore Shallow Water Regulation, Aquaculture Pond Desilting, Reservoir Sediment Removal, Port Channel Deepening, Commercial River Sand Mining
|
|
|
Fuselage Material
|
—
|
10mm Bottom/8mm Side Marine Steel, Integral Welding & Four-Layer Composite Anti-Corrosion Coating
|
|
|
Overall Hull Dimension
|
m
|
42(L) × 8.2(W) × 2.2(H)
|
|
|
Total Equipment Weight
|
t
|
82
|
|
|
Working Performance (20-Inch Specific)
|
Dredging Pump Diameter
|
Inch
|
20 (500PN High-Chromium Alloy Slurry Pump)
|
|
Rated Slurry Flow
|
m³/h
|
3500 (Max 3800)
|
|
|
Solid Sand Output
|
m³/h
|
720 (Stable Working Condition)
|
|
|
Effective Dredging Depth
|
m
|
3–19
|
|
|
Cutter Head Specification
|
mm
|
2000, 6pcs Wear-resistant Alloy Blades
|
|
|
Cutter Head Rated Power
|
kW
|
260
|
|
|
Three-Pile Effective Length
|
m
|
22 (Customizable 20–26)
|
|
|
Max Conveying Distance
|
m
|
1500 (Single-Stage), 2500 (Dual-Stage Booster)
|
|
|
Power & Positioning
|
Main Engine Rated Power
|
kW / HP
|
1200kW / 1630HP (Weichai 12V Marine Diesel)
|
|
Positioning Method
|
—
|
Hydraulic Three-Pile Fixed-Point Positioning
|
|
|
Standard Draft
|
m
|
2.5 (Range:1.8–2.9)
|
|
|
Single-Point Operation Scope
|
m²
|
75 (Range:55–95)
|
|
|
Environment Adaptability
|
Applicable Area
|
—
|
Inland Rivers, Breeding Ponds, Freshwater Reservoirs, Offshore Shallow Sea, Inland & Seaport Terminals
|
|
Corrosion & Wear Resistance
|
—
|
Four-Layer Composite Marine Anti-Corrosion, High-Chromium Alloy Wear-Resistant Pump & Pipeline
|
|
|
Max Continuous Working Time
|
h
|
24
|
|
|
Certification & Warranty
|
Implementation Standard
|
—
|
ISO9001, CCS Marine Equipment Standard, International Dredging Machinery Safety Specification
|
|
Warranty Period
|
Month
|
18 Months for Whole Machine, 24 Months for Main Engine & Cutter Head
|
Core Technical Advantages of 20-Inch Three-Pile Dredger
1. Factory Direct Supply, Higher Cost-Performance
Qingzhou Yakai Dredging Machinery Manufacturing Co., Ltd. is a professional one-stop manufacturing factory focused on the R&D and production of ultra-large heavy-dutydredgers and dredging boats. We eliminate intermediate agents and price markups, delivering high-quality 20-Inch Three-Pile Dredger directly to global large-scale project contractors and bulk purchasers. Compared with other oversized dredging equipment on the international market, our20-inch three-pile dredger integrates higher output and lower operating failure rate, helping clients effectively control procurement and operation costs for super-large dredging projects and acquire reliable integrated heavy-duty dredging solutions.
2. Reinforced Alloy Three-Pile Positioning, Zero-Drift Full-Load Operation
Equipped with an upgraded extra-thick alloy hydraulic three-pile positioning system, the 20-Inch Three-Pile Dredger supports automatic lifting, hydraulic self-locking and fixed-point precision anchoring. The reinforced integral anti-torsion hull structure maintains zero shaking and zero drifting under 24-hour continuous full-load working status, completely solving the stability bottleneck of medium and large-sized dredgers in deep-water high-intensity construction scenarios. The millimeter-level precise fixed-point desilting technology realizes uniform deep dredging without dead zones, which is the core selling point of our flagship 20-inch three-pile dredger.
3. 20-Inch Super Large-Flow Pump, Industry-Top Construction Efficiency
The customized anti-clogging ultra-heavy-duty 2020-inch 500PN high-chromium alloy dredging pump configured for the 2020-Inch Three-Pile Dredger, matched with a 2000mm large-diameter crushing cutter head and 260kW independent cutter power system, features far stronger suction power and ultra-long-distance high-pressure discharge capacity than conventional 8-inch to 18-inch standard dredging boats. It achieves a rated slurry flow of 3500m³/h and a stable solid sand output of 720m³/h, with standard 1500m single-stage horizontal conveying distance and optional 2500m long-distance transportation via booster pump. This dedicated large-flow pump can easily handle high-viscosity aged sludge, coarse river sand, dense shell layers and mixed hard gravel sediment within the 3-19m dredging depth range, adapting to inland freshwater and offshore saltwater dual working environments. As a multi-functional all-scenario heavy-duty dredger, it perfectly balances ultra-large daily construction output and fixed-point operation stability, being the optimal dedicated equipment for long-term super-large commercial dredging and bulk river sand mining projects.
4. Reinforced Wear-Resistant & Anti-Corrosion Structure, Extended Service Life
Core vulnerable components of the20-Inch Three-Pile Dredger, including pump impeller and discharge pipeline, are integrally forged from high-hardness high-chromium wear-resistant alloy. The elongated thickened positioning piles and overall fuselage adopt four-layer composite heavy-duty marine anti-corrosion coating independently developed by our factory. Compared with ordinary large-scale dredgers, the overall durability of this 20-inch three-pile dredger is increased by 60%, effectively reducing daily maintenance frequency and long-term comprehensive operation costs for project owners.
5. Intelligent Simplified Operation & Full-Scenario Adaptability
The upgraded intelligent full-automatic integrated control panel simplifies complex operation logic, enabling novice operators to proficiently operate the20-Inch Three-Pile Dredger in a short period without professional qualification certificates. This three-pile dredger supports free switching between diesel and electric power modes, as well as multi-stage extended pipeline assembly to meet ultra-long-distance material discharging requirements. Our factory provides free systematic professional operation training and complete official operation tutorials for every purchased 20-inch three-pile dredger.
6. Personalized Customization for Extreme Working Conditions
With decades of rich experience in independent R&D and manufacturing of heavy-duty dredgers, Qingzhou Yakai Dredging Machinery Manufacturing Co., Ltd. provides all-round personalized customized services for the 20-Inch Three-Pile Dredger. Clients can adjust core parameters such as matched pump power, maximum dredging depth, conveying pipeline length and auxiliary functional devices according to actual water depth, sediment hardness and on-site construction standards, to make the 20-inch three-pile dredger fully adapt to various complex extreme working scenarios worldwide.
Typical Application Scenarios
1. Super-Large River Dredging & Commercial Sand Mining
The 20-Inch Three-Pile Dredger is professionally developed for super-large inland river channel deepening, ecological renovation and large-scale commercial sand mining projects. It efficiently removes thick aged sediment and accumulated sand on the riverbed, optimizes water flow efficiency and improves navigation conditions for large cargo vessels. At present, this 20-inch three-pile dredger has become the most popular high-output dredger for global large-scale water conservancy upgrading and river sand resource exploitation projects.
2. Industrial-Grade Centralized Aquaculture Base Desilting
Featuring low-disturbance and ultra-high-output characteristics, the 20-Inch Three-Pile Dredger quickly cleans thick bottom sludge in industrial super-large fish and shrimp breeding bases without damaging the original pond foundation structure. It effectively optimizes the underwater ecological environment, reduces harmful sludge bacteria, and improves the overall survival rate of aquatic products. This high-efficiency practical dredging boat has obtained wide recognition and adoption from global large-scale integrated aquaculture enterprises.
3. Giant Deep-Water Reservoir Sediment Removal
Specially designed for giant deep-water reservoirs, the fixed-point 20-Inch Three-Pile Dredger thoroughly cleans years of accumulated thick sediment inside the reservoir, maximizes the restoration of original water storage capacity, and stabilizes regional agricultural irrigation, domestic water supply and flood control emergency systems. It is the most reliable ultra-large heavy-duty dredger for large-scale reservoir ecological renovation and sediment cleaning projects.
4. Coastal & Deep-Water Terminal Daily Maintenance
The 20-Inch Three-Pile Dredger is applicable to channel deepening and daily maintenance for open sea coastal ports and deep-water large inland terminals. It regularly clears underwater sediment and sunken obstacles to maintain stable navigable depth, ensuring safe and efficient passage for large cargo ships and offshore fishing vessels. This dredging boat is an indispensable core supporting device for port expansion, channel upgrading and daily operational maintenance projects.
5. Super-Large Ecological Landscape Water Restoration
Equipped with an adjustable mute low-noise operation mode and zero secondary pollution discharge design, the 20-Inch Three-Pile Dredger is suitable for super-large scenic water areas and artificial ecological lakes. It removes redundant underwater sludge, improves overall water clarity, and realizes comprehensive underwater ecological restoration, fully complying with unified environmental protection standards of all countries across the world.
Product Competitive Advantages
-
Factory Direct Sales: Direct sales model of professional ultra-large heavy-duty dredger and dredging boat manufacturer, cut intermediate links and reduce project investment costs.
-
Hydraulic Three-Pile Positioning: Reinforced thickened alloy pile structure, higher stability than floating dredgers, suitable for 24-hour uninterrupted high-intensity fixed-point construction.
-
Ultra-High Construction Efficiency: Equipped with exclusive 20-inch super large-flow dredging pump to maximize daily output, covering all large and super-large water area dredging scenarios.
-
Ultra-Strong Environmental Adaptability: Premium four-layer composite marine anti-corrosion treatment, adaptable to fresh water, salt water and mixed complex harsh water environments.
-
Eco-Friendly Mute Operation: Customized mute operating module, no damage to aquatic organisms, fully compliant with international ecological environmental protection regulations.
-
Full-Scenario Compatibility: A single 20-inch three-pile dredger meets super-large-scale dredging and sand mining demands for rivers, aquaculture ponds, reservoirs and ports.
Quality Assurance & After-Sales Service
Qingzhou Yakai Dredging Machinery Manufacturing Co., Ltd. holds complete qualification certificates for the design and production of ultra-large heavy-duty dredgers and dredging boats. Every finished 20-Inch Three-Pile Dredger will undergo a 24-hour full-load cyclic operation test before delivery to eliminate potential structural and performance defects:
-
Test the linkage coordination performance of the hydraulic positioning system and 20-inch dredging pump to ensure zero failure rate under long-term high-intensity load working conditions.
-
Provide complete product qualification certificates, third-party quality inspection reports and detailed official operation manuals for the 20-inch three-pile dredger.
-
12–24 months full-machine warranty service, covering all core components of the ultra-large heavy-duty dredger.
-
Provide global overseas door-to-door installation guidance, equipment debugging and professional operator systematic training services.
-
Build regional overseas spare parts warehouses to realize 7-day fast door-to-door delivery of accessories for all sold dredging boats and 20-inch three-pile dredger products.
Conclusion
The newly upgraded 20-Inch Three-Pile Dredger launched by Qingzhou Yakai Dredging Machinery Manufacturing Co., Ltd. is a high-cost-performance ultra-large heavy-duty fixed-positiondredger. This dredging boat integrates ultra-high construction output, stable fixed-point anchoring and full-scenario environmental adaptability, perfectly solving various construction pain points in super-large deep-water dredging, ecological desilting and commercial sand mining projects. Adhering to the quality-first and customer-oriented manufacturing philosophy, our factory provides high-quality 20-inch three-pile dredger products and one-stop customized dredging solutions for global clients, which is the optimal choice for modern super-large-scale water conservancy and ecological dredging projects.
Operating Instructions
To maximize the overall service life and comprehensive working efficiency of the 20-Inch Three-Pile Dredger, all operators must strictly abide by the standardized operating specifications formulated by our factory. This complete set of guidelines applies to all our three-pile dredging boats, including pre-operation inspection, formal dredging steps and standardized shutdown procedures specially formulated for the 20-inch three-pile dredger.
1. Pre-Operation Inspection
-
Inspect the hull welding seams, surface paint and four-layer composite anti-corrosion coating of the 20-Inch Three-Pile Dredger to confirm no water leakage, cracking or structural damage.
-
Debug the hydraulic three-pile positioning system repeatedly, test the lifting, locking and resetting functions of each positioning pile, and eliminate jamming and abnormal noise faults in advance.
-
Check the 20-inch dredging pump, impeller assembly and thickened wear-resistant conveying pipeline of the 20-inch three-pile dredger, fasten loose connecting parts and clean internal residual blockages.
-
Examine the high-power power system, detect fuel reserves as well as circuit and oil circuit tightness to avoid sudden power failure during continuous high-intensity dredging work.
-
Debug the intelligent centralized control panel to verify all monitoring data including flow rate, pipeline pressure and pile depth can be displayed accurately in real time.
2. Formal Operation Steps
-
Navigate the 20-Inch Three-Pile Dredger to the predetermined working water area, adjust the hull to a horizontal balanced state, and slowly lower three positioning piles to fix the hull firmly on the water surface.
-
Start the power unit at idle speed, preheat the 20-inch dredging pump for 3-5 minutes, then gradually increase power to the rated working range to avoid equipment shock damage caused by sudden startup.
-
Adjust the stirring depth and suction angle according to underwater sediment thickness to start formal desilting and sand mining work; overload startup and long-term overpressure operation of the 20-inch three-pile dredger are strictly prohibited.
-
Monitor pump pressure and material flow data through the intelligent control system during operation; reduce power immediately and troubleshoot hidden faults once pipeline blockage or abnormal vibration occurs.
-
After completing the dredging task of a single fixed point, slowly retract the positioning piles, move the dredger to the next working area, and repeat the above standardized operation steps.
3. Shutdown Procedures
-
Before shutting down the 20-Inch Three-Pile Dredger, stop sediment suction firstly, keep the 20-inch dredging pump running with clean water for 5-10 minutes to flush residual sludge and gravel inside the pump body and conveying pipeline.
-
Gradually reduce engine power to stable idle speed, turn off the power system, and retract all positioning piles to the designated fixed storage position.
-
Clean the hull surface and vulnerable parts of the 20-inch three-pile dredger, record daily operating data and abnormal faults for later targeted maintenance reference.
4. Basic Operational Skills & Practical Guidance
To help operators quickly master the professional operating skills of the 20-Inch Three-Pile Dredger and further improve overall construction efficiency, our factory summarizes targeted practical operation skills for this ultra-large heavy-duty dredging boat, covering sediment suction adjustment, hull fine-tuning and adaptive operation skills for different water depth scenarios.
-
Sediment Suction Adjustment: For low-concentration sediment areas, appropriately reduce the stirring device height and increase pump power within the rated range to enhance overall suction force. For thick viscous sludge, control the stirring device to move horizontally in a small range to avoid suction interruption of the 20-inch pump, stabilizing the long-term working state of the20-inch three-pile dredger.
-
Horizontal Hull Fine-Tuning: When the single-point working range cannot cover the construction area, there is no need to retract all positioning piles. Lift 1-2 positioning piles appropriately and push the hull horizontally by using pile friction force, which greatly saves repeated positioning time of the dredger and improves construction progress.
-
Water Depth Adaptation Operation: For shallow water areas with draft below 1.6m, reduce the rotating speed of the stirring impeller to prevent collision and abrasion with the riverbed. For deep water areas close to the 18m limit, keep three positioning piles vertical to share hull pressure evenly and ensure stable operation of the 20-inch three-pile dredger.
-
Dual Power Switching Tips: Switch power modes only when the dredger is in idle static state instead of working state. After switching power, run the equipment at idle speed for 2-3 minutes to stabilize internal pump pressure and prevent pipeline cracking caused by sudden pressure mutation.
5. Pipeline Blockage Emergency Solution
Pipeline blockage is the most common minor fault during the daily operation of the 20-Inch Three-Pile Dredger. Operators can follow the standardized solutions below to eliminate faults quickly without damaging vulnerable parts of the dredging boat:
-
Once blockage occurs, stop sediment suction immediately and adjust the engine to idle speed, keep the 20-inch dredging pump running with clean water to dilute and discharge blocked sediment inside the pipeline.
-
If clean water flushing fails to solve the problem, start the reverse pump function for 10-20 seconds repeatedly to discharge accumulated gravel and massive sludge from the suction port, an exclusive fault-solving solution customized for our 20-inch three-pile dredger series.
-
For severe irreversible blockage, cut off the power completely, disassemble the quick-disassembly flange connector, manually clean internal blockages, and reassemble the pipeline for idle trial operation before formal construction.
Important Notes & Safety Precautions
Standardized safety precautions are essential to extend the overall service life and avoid safety accidents of the 20-Inch Three-Pile Dredger. Our factory sorts out targeted risk control rules for daily operation, regular maintenance and long-term storage of this ultra-large heavy-duty dredging boat.
1. Operational Safety Notes
-
All operators must complete professional systematic training organized by our factory before operating the20-inch three-pile dredger; untrained personnel are strictly prohibited from independent operation to prevent unnecessary equipment damage and safety accidents.
-
It is strictly forbidden to operate the 20-Inch Three-Pile Dredger in extreme bad weather including heavy rain, gale, thunderstorm and huge waves to prevent hull tilting and capsizing accidents.
-
Do not adjust positioning piles or disassemble the conveying pipeline when the dredger is under full-load operation; all adjustment and maintenance work must be carried out after power cutoff and complete shutdown.
-
The actual dredging depth shall never exceed the rated 18m limit of the equipment, and long-term overload operation is prohibited to prevent burnout of the 20-inch dredging pump and high-power driving motor.
-
Keep a safe distance from floating debris, underwater rocks and dense aquatic plants during operation to avoid winding and permanent damage to the stirring device and pump body of the 20-inch three-pile dredger.
2. Daily Maintenance Precautions
-
Clean residual sludge inside the pipeline and 20-inch pump body of the 20-Inch Three-Pile Dredger after daily work to prevent sediment solidification and recurring pipeline blockage.
-
Regularly add high-grade anti-wear lubricating oil to the hydraulic positioning system and rotating parts of the dredging boat, and replace aging sealing accessories according to actual operating frequency.
-
Inspect the anti-corrosion coating of the hull and positioning piles every month, repair peeling paint and damaged coating in time to avoid metal corrosion and extend the overall service life of the dredger.
-
For long-term idle 20-inch three-pile dredger, drain all residual water inside the pump and pipeline, park the equipment in a dry and ventilated dock, and cover with a professional dustproof and waterproof protective cover.
3. Fault Handling Precautions
-
Once abnormal noise, severe vibration or pipeline blockage occurs during operation, cut off the power immediately and stop construction; it is forbidden to disassemble internal parts with electricity to eliminate faults.
-
In case of core faults such as 20-inch pump damage and hydraulic system failure, contact our official after-sales team for professional technical support; private disassembly without authorization will invalidate the product warranty of the 20-inch three-pile dredger.
-
All damaged vulnerable parts must be replaced with original factory matching accessories provided by our factory; mismatched non-original accessories will cause irreversible structural damage to the whole dredger.
Be the first to review “20-Inch Three-Pile Dredger”
Reviews
There are no reviews yet.