What is the lead time for production?

The average lead time is 1-3 months during peak season and one month during the off-season.

Can you provide on-site training?

Yes, we send experienced engineers to guide installation and train local workers on operation and daily maintenance until they are proficient.

What are the main applications?

It is widely used for sand excavation from seas, lakes, ports, rivers, channel maintenance, desilting, land reclamation, and port deepening.

Junhang-CSD500A 20 Inch Marine Sand Dredging Machine Cutter Suction Dredger with Double Pump

Name: Junhang-CSD500A 20 Inch Marine Sand Dredging Machine Cutter Suction Dredger with Double Pump
Brand: Qingzhou Junhang Environmental Protection Technology Co., Ltd.
SKU: 2232241475

Shandong, ChinaQingzhou Junhang Environmental Protection Technology Co., Ltd.

US$600,000.00-680,000.00

1 Set

Product profile

Customization

Available

Type

Cutter Suction Dredger

Power Type

Diesel

Model NO.

JUNHANG-CSD500A (20 inch)

Customized

Condition

New

Warranty

12 Months for Free, Service Is Life-Time.

After-sales Service

Engineers on-Site Guidance Installation and Traini

Structure

Dismountable Modular Box Structure

Material

Ccsb Marine Steel Plate

Engine Options

International Famous Brand Engine, Multiple Option

Dredging Pump

China Shijiazhuang Famous Brand Pump

Water Flow

4000m3/H

Dredging Depth

25m

Discharge Distance

2000m

Overall Length

43m

Testing Before Shipment

Provided Test Reports

Video Outgoing-Inspection

Provided

Main Engine

895kw

Discharge Pipe Dia.

600mm

Suction Pipe Dia.

500mm

Draught

1.7m

Generator

30kw

Transport Package

in Bulk or Container

Specification

CSD500A (20 inch)

Trademark

JUNHANG

Origin

Shandong, China

HS Code

8905100000

Production Capacity

10 Sets/Month

Key features

Modular Dismountable Design: Box-structure allows easy dismantling and assembly for convenient truck transport and fast site installation.

High Efficiency Double Pump: Dual pump system increases dredging depth, working capacity, and overall efficiency for sand excavation.

Premium Core Components: Equipped with international famous brand engines, Shijiazhuang pumps, Siemens PLC, and Rexroth hydraulic systems.

Customizable Configuration: Structure, material, and engine options are fully customizable to meet specific client mining conditions.

12-Month Free Warranty: Comprehensive 12-month free warranty with free replacement of accessories and lifelong after-sales service.

24/7 Technical Support: Engineers available for on-site guidance, installation, training, and remote technical support at any time.

Factory Pre-Testing: Each unit undergoes complete performance and safety testing before shipment to ensure proper function.

Marine Grade Durability: Constructed from CCS-certified marine steel with anti-corrosion paint and zinc anodes for saltwater service.

Company profile

Qingzhou Junhang Environmental Protection Technology Co., Ltd.Shandong, China

CertifiedBusiness Type: Trading CompanyExport Year: 2025-09-10Nearest Port: Tianjin, Qingdao, ShanghaiAverage Response Time: ≤0.92hTerms of Payment: LC, T/TInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF

AI-Powered supplier vetting

SummaryQingzhou Junhang Environmental Protection Technology Co., Ltd. is identified as a Chinese trading company established in 2025, while its profile describes manufacturer-oriented capabilities in ship design, dredging equipment, engineering-vessel construction, and related machinery. It reports ISO9001 certification, compliance with China Classification Society requirements, dedicated engineering, quality inspection, and after-sales personnel, and the ability to design machinery for specific customer requirements. The supplier states that it operates five production lines, employs more than 300 people, and reports annual output across several vessel and machinery categories. Its products are reportedly exported to numerous countries. However, the available information contains inconsistencies: the registered company type is “Trading Company,” total staff experience is listed as zero, and the reported manufacturing-plant area is only 126.0 m² despite the stated 300-acre company area. Customer references are...

CertificationsThe supplier explicitly states that it has obtained ISO9001 quality-system certification and that ship design, construction, quality inspection, and accessories are completed according to China Classification Society requirements. These statements provide direct evidence of documented quality certification and stated classification compliance.

After-Sales capabilityThe supplier reports 20 after-sales service technicians and identifies an after-sales department within its organizational structure. This is direct evidence of dedicated after-sales resources, although no response-time, geographic coverage, or service-performance details are provided.

R&D capabilityThe company reports 15 senior engineers specializing in shipbuilding and dredging research, a research and development center, cooperation with classification societies and research institutions, and the ability to develop special machinery. These details directly support an established technical and R&D capability.

Customization capabilityThe supplier explicitly states that it can design and produce special types of machinery according to customer requirements and describes a one-stop model covering ship design, R&D, innovation, manufacturing, and dredging-engineering construction. This directly supports customization capability for specialized vessels and machinery.

Product Q&A

Q:What is the dredging capacity and depth?

The water flow is 4000m3/h with a solid sand capacity of 1000m3/h. The standard dredging depth is 25m, but it can reach up to 30 meters with the double pump system.

Q:Is the machine customizable?

Yes, the structure, material, and engine options are fully customizable. We design and manufacture according to clients' specific mining conditions and requirements.

Q:What is the warranty and after-sales service?

We provide a 12-month free warranty with free replacement of accessories. Additionally, we offer lifelong after-sales service and 24/7 technical support standby.

Q:How is the machine transported and installed?

The dredger features a dismountable modular box structure. It can be easily dismantled for truck transport and assembled quickly at the working site with engineer guidance.

Q:What core components are used?

We use international famous brand engines (100-2500kW), China Shijiazhuang pumps, Siemens PLC control systems, and Rexroth hydraulic valves for durability and efficiency.