What is the maximum dredging depth and water flow?

The standard model has a dredging depth of 15m and a water flow of 4000m3/h, with work capacity up to 8000m3/h.

Can the dredger be operated remotely?

Yes, the dredger is equipped with a Siemens PLC control system that allows remote operation from the operation room with good all-around visibility.

What materials are used for the hull construction?

The hull is made of special marine steel plates certified by CCS, featuring a dismantled type and box-like structure with anti-corrosion zinc blocks.

20 Inch Jet Pump Suction Dredger for Sand and Gold Extraction in River Channels

Name: 20 Inch Jet Pump Suction Dredger for Sand and Gold Extraction in River Channels
Brand: Qingzhou Junhang Environmental Protection Technology Co., Ltd.
SKU: 2232338435

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

US$600,000.00-680,000.00

1 Set

Product profile

Customization

Available

Type

Jet Suction Dredger

Power Type

Diesel

Model NO.

JUNHANG-JSD500 (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

15m

Discharge Distance

2000m

Overall Length

33m

Testing Before Shipment

Provided Test Reports

Video Outgoing-Inspection

Provided

Main Engine

1434kw

Suction Pipe Dia.

550mm

Discharge Pipe Dia.

500mm

Draught

1.7m

Generator

30kw

Transport Package

in Bulk or Container

Specification

JSD500 (20 inch)

Trademark

JUNHANG

Origin

Shandong, China

HS Code

8905100000

Production Capacity

10 Sets/Month

Key features

Modular Dismountable Design: Dismountable modular box structure allows easy transport by truck and rapid assembly at the working site.

High Efficiency Performance: Water flow up to 4000m3/h and dredging depth of 15m, with work capacity reaching 8000m3/h.

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

Marine Grade Durability: Constructed from CCS certified marine steel plates with anti-corrosion zinc blocks and 4-layer epoxy paint.

Remote Operation Capability: Features a PLC control system allowing remote operation from the operation room with full visibility.

Comprehensive Quality Testing: Each unit undergoes complete factory testing including hydraulic, electrical, and dredging performance checks.

Lifetime Technical Support: Engineers available for on-site guidance, training, and 24/7 technical support throughout the machine's life.

Flexible Engine Options: Multiple international famous brand engine options are available to suit specific customer requirements.

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: ≤1.02hTerms 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 warranty period for the dredger?

We provide a 12-month free warranty for the dredger, along with lifetime technical support and on-site maintenance services.

Q:How is the dredger transported and installed?

The dredger features a dismountable modular box structure, allowing it to be transported by truck or container and easily assembled at the working site.

Q:What brands of engines and pumps are used?

We use international famous brand engines with multiple options and China Shijiazhuang famous brand pumps, ensuring high efficiency and reliability.

Q:What after-sales services are provided?

We provide experienced engineers for on-site installation guidance, operator training, and 24/7 technical support. Engineers can be sent to the site for repairs if needed.

Q:Is the dredger tested before shipment?

Yes, each dredger undergoes complete testing in a pool before shipment, including hydraulic, electrical, and dredging performance tests to ensure safety and quality.