Gold Dredger

Qingzhou Jinqi Mining Machinery Co., Ltd. is a professional manufacturer and supplier of gold dredgers. We are the original factory of the various types of gold mining and dredging equipment, and we offer you the most competitive product pricing and high-quality services.

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Product Description

A gold dredger is a specialized mobile equipment for alluvial gold mining, integrating functions such as underwater ore excavation, material conveyance, gold separation, and tailings discharge. It primarily operates in water bodies like rivers, lakes, and coastal tidal flats, serving as the core equipment for alluvial gold extraction. The bucket-line gold dredger and cutter suction gold dredger are globally best-selling mining devices manufactured by Qingzhou Jinqi Mining Machinery Co., Ltd. We look forward to collaborating with you.

Gold Dredger

Operational Logic

Excavation Phase:

Utilizing different working devices such as bucket chains or hydraulic cutter heads, the system collects gold-bearing gravel or ore slurry from underwater mineral layers.

Gold Dredger

Separation Phase:

The excavated material is conveyed to the onboard separation system, where gold particles are extracted and purified from the gravel through principles like gravity separation and centrifugal concentration.

Gold Dredger

Tailings Discharge Phase:

Post-separation tailings (gravel, silt) are discharged to designated areas via specialized equipment, preventing sediment accumulation that could disrupt operations.

Gold Dredger

Comparison Between Cutter Suction Gold Dredgers and Chain Bucket Gold Dredger

Item	Cutter Suction Gold Dredger	Chain Bucket Gold Dredger
Core Excavation Method	The hydraulic cutter head rotates at high speed to crush the ore layer, while the slurry pump creates negative pressure to suction the ore-bearing slurry. The processed material is in a slurry state	Closed-loop chain bucket continuous excavation is performed, with conveyor belts transporting the solid granular material. The processed material remains in a solid state throughout the process.
Adapted to ore layers or water areas	Deep-water deposits (5–30 m depth) consisting of unconsolidated ore strata, such as silt, fine sand layers, and intertidal mudflats, with a pebble content of less than 10%.	Shallow-water deposits (8–15 m depth) consisting of consolidated hard ore strata, such as high-pebble-content formations and riverbed hardpan layers, with pebble concentrations exceeding 30%.
Separation Focus	Specializes in the recovery of fine gold and micro gold, with multi-stage hydraulic separation adapted to slurry materials.	Specializes in the recovery of coarse gold and nugget gold, with mechanical screening plus gravity separation adapted to solid gravel materials.
Core Advantage	High deep-water operational capability, agile mobility for site relocation, and superior fine gold recovery efficiency.	Robust excavation force, superior adaptability to hard ore strata, and high economic efficiency in large-scale operations.

Gold Dredger

For deep-water, soft ore strata, and small-to-medium-scale mobile mining operations, the cutter suction dredger is preferred;

For shallow-water, hard ore strata, and large-scale fixed mining operations, the bucket ladder dredger is recommended

About Us

Qingzhou Jinqi Mining Machinery Co., Ltd. was established in 2016, leveraging over a decade of technological accumulation and innovative breakthroughs to emerge as a benchmark enterprise in China's placer gold mining equipment sector. As an integrated manufacturer specializing in R&D, production, and sales, the company remains steadfast in its commitment to "Quality First, Customer Centric", dedicated to delivering efficient and reliable gold extraction solutions to clients worldwide.

Gold Dredger

Gold dredgers, as critical equipment for gold mining operations and Jinqi's flagship products, exemplify our engineering excellence. If you are interested in gold dredging solutions, please contact us.

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