Jet Suction Dredger for Sand & Sediment | Wanrun WR-JSD400

WR-JSD400 | Water-Jet-Assisted Sand and Sediment Dredging

The wr-JSD400 jet suction dredger from Shandong Wanrun Intelligent Equipment Co., Ltd. combines water-jet loosening with pump-driven sediment transport. It is intended for suitable sand and unconsolidated sediment, subject to site assessment. A separate jet-water pump assists material loosening at the intake, while the dredge pump transfers the resulting water–solids mixture through a discharge pipeline.

Reference configuration only. Specifications below describe a preliminary equipment configuration, not guaranteed site performance. Final equipment selection and operating conditions must be agreed in the project technical specification.

Match the Equipment to Your Dredging Task

Separate loosening and transport circuits:

• the jet-water pump assists sediment mobilisation; the dredge pump handles slurry transfer.

Straight-pipe suction arrangement:

• the reference dredging depth is 18 m, providing a starting point for site assessment.

Pipeline discharge:

• a 400 mm discharge pipe provides the specified outlet for transferring dredged material to the placement area.

Specified pump components:

• the reference 350WN dredge pump has a Cr27 impeller, identifying a material requirement for technical review.

Winch-controlled positioning:

• the listed lifting winch and four swing winches support intake handling and positional adjustment during dredging.

Understand How Water-Jet-Assisted Suction Works

The jet suction dredger uses two pumps with different jobs. The jet-water pump supplies water to the intake area to loosen suitable sediment and assist mixture formation. The dredge pump draws in that mixture and conveys it through the discharge line. The jet-water flow is therefore not the dredger's solids production rate.

This is a water-jet-assisted suction arrangement, not a claim that an eductor replaces the dredge pump. Unlike a cutter suction dredger, this configuration is not specified with a rotating cutter head. Material suitability needs checking before equipment selection, especially where cohesive clay, consolidated layers, rock or debris are present.

Review the Reference Specifications

Performance qualification: water flow is not dry-solids output. The listed solids capacity, dredging depth, discharge distance and elevation are not verified as a simultaneous operating point. Confirm achievable performance against sediment properties, slurry concentration, pipeline layout and pump operating conditions. The final drive arrangement remains subject to technical confirmation.

Check Whether This Configuration Fits Your Site

Consider this jet suction dredger for sand extraction or sediment-removal projects where the material is suitable for hydraulic loosening and pumping. River, lake and reservoir applications require sediment assessment rather than selection by waterbody type alone. Send material samples or grading information, working depth and discharge-route details for a project-specific assessment.

Frequently Asked Questions

What material is a jet suction dredger intended to remove?

Suitable sand and unconsolidated sediment are the main assessment targets. Do not assume this configuration can excavate rock, stiff clay or debris-rich deposits without further engineering review.

Does 2,500 m³/h mean 2,500 m³ of sand per hour?

No. The reference sheet labels 2,500 m³/h as water flow. It separately lists 500 m³/h solids capacity without defining test conditions or the volume basis. Neither figure is a guaranteed dry-sand production rate.

Can the stated depth and discharge distance be achieved together?

That has not been established by the reference sheet. A project duty assessment is required before combining the 18 m depth, 1,000 m discharge distance and listed production figures.

Is the jet suction dredger diesel-powered or electric?

The preliminary sheet includes diesel-engine entries, but its drive selection is not final. Confirm the agreed drive arrangement before ordering. An electric configuration requires a separate technical specification.

How does jet-assisted suction differ from cutter suction?

Jet-assisted suction uses water jets to help loosen material. Cutter suction adds a rotating mechanical cutter. Material strength and project requirements determine which approach should be assessed.

What should I send when requesting a jet suction dredger proposal?

Provide sediment type and particle-size information, working depth, required solids output, pipeline distance and elevation, available power, and project location. State how solids output is measured.

Request a Dredging Proposal

Discuss your jet suction dredger requirements with Shandong Wanrun Intelligent Equipment Co., Ltd. Send the site information above to request a configuration review and project-specific quotation.

Request a Dredging Proposal

Photos of packaging and shipment

Technical background sources

These references support general dredging terminology only. They do not verify this model's specifications, performance, certifications or delivery history. The pages do not state publication dates; they were accessed on 4 November 2026 and are not presented as recent market evidence.

IADC — Suction Dredgers

1. : separate dredge-pump transport and jet-water assistance; suitability for unconsolidated materials.

IADC — Pipelines

2. : floating, submerged and shore pipeline arrangements.

IADC — Cutter Suction Dredgers

3. : rotating cutter heads and hydraulic transport.

Product-specific values are transcribed from the customer-supplied wr-JSD400 reference sheet, not from independent testing. Manufacturer attribution is supplied by the customer. No price, certification, delivery case, service commitment or measured efficiency improvement has been added.