Project Overview

Recently, Taian OCEAN Pump Co., Ltd. successfully completed the production, assembly, and factory testing of an 8-inch large particle sand dredger system for a river sand extraction project in Fiji.

After completing the full performance inspection, the dredging equipment was ready for shipment to the customer. This project demonstrates OCEAN Pump’s professional capabilities in designing and manufacturing customized sand dredging machines, gravel pumps, and river sand extraction systems for challenging working conditions.

As a professional manufacturer of sand pumps, slurry pumps, gravel pumps, and dredging equipment, OCEAN Pump provides complete solutions from technical design, equipment manufacturing, testing, and after-sales support.

With more than 20 years of experience in dredging and pumping applications, OCEAN Pump has successfully provided solutions for:

• River sand mining
• Lake and river dredging
• Mining slurry transportation
• Tailings treatment
• Land reclamation
• Port and waterway maintenance

Customer Requirement: Efficient Solution for Coarse Sand and Gravel Dredging

The Fiji customer planned to conduct river sand extraction operations. However, the actual river conditions presented significant challenges.

According to the customer’s description, the dredging area contained:

• Coarse river sand
• Large gravel particles
• Pebbles
• Stones
• Other solid materials

During normal sand pumping operations, large particles can easily cause:

• Pump blockage
• Reduced suction efficiency
• Increased wear of wet-end parts
• Frequent maintenance requirements

Therefore, the customer needed a heavy-duty sand dredging system capable of continuously handling high-concentration sand and gravel mixtures.

After analyzing the working conditions, OCEAN Pump’s engineering team recommended a customized 8-inch large particle sand dredger equipped with a heavy-duty sand suction pump.

Customized 8 Inch Sand Dredger Solution

Based on the customer’s requirements, OCEAN Pump designed a complete floating sand dredging system.

The main equipment configuration includes:

1. 8 Inch Large Particle Sand Pump

The core component of the dredger is an 8-inch large particle sand suction pump, specially designed for handling abrasive materials and large solid particles.

The pump features:

• Large flow passage design
• Strong solid passing capability
• Three-blade impeller structure
• Heavy-duty wear-resistant pump casing
• High-efficiency sand transportation performance

The pump is suitable for pumping mixtures containing sand, gravel, stones, and other solid particles.

2. Diesel Engine Power System

The dredger is equipped with a Weichai 180 HP diesel engine, providing reliable power for continuous operation.

Advantages of diesel drive:

• Independent operation without external power supply
• Suitable for remote river locations
• Easy maintenance
• Strong adaptability to harsh environments
• Long continuous working capability

3. High Pressure Water Jet System

To improve sand loosening efficiency and increase sand concentration, OCEAN Pump added a high-pressure water pump system.

The high-pressure water system provides:

• Sand layer loosening
• Improved suction efficiency
• Reduced blockage risk
• Better sand-water mixture formation

At the same time, the system provides cooling water circulation for the diesel engine, improving overall equipment reliability.

Large Particle Sand Pump Design Advantages

The OCEAN Pump large particle sand pump adopts a special three-blade impeller structure.

Compared with traditional sand pumps, it provides better performance when handling difficult materials.

Excellent Solid Passing Ability

The optimized impeller design allows large particles to pass smoothly through the pump chamber.

This makes it suitable for:

• Gravel pumping
• River sand extraction
• Stone-containing sand dredging
• Mining slurry transportation

Superior Wear Resistance

During sand dredging operations, pump components are exposed to continuous abrasion.

To improve service life:

• Pump casing thickness is increased
• Impeller structure is reinforced
• Wear-resistant materials are applied to key components

This reduces replacement frequency and lowers operating costs.

Stable Continuous Operation

The pump structure is optimized for long-term operation.

Benefits include:

• Stable performance
• Lower vibration
• Reduced maintenance requirements
• High working efficiency
• https://www.tiktok.com/@taianoceanpumpcoltd/video/7659972022591589652?is_from_webapp=1&sender_device=pc&web_id=7468196983980213780

Sand Dredger Hull Design

To ensure stable operation on the river, OCEAN Pump designed a customized floating hull according to the customer’s requirements.

Hull Structure:

Middle Hull

Size:

4.8m × 2.2m × 1m

Side Pontoons

Size:

6.8m × 1m × 1m × 2 pcs

The floating structure provides:

• Strong buoyancy
• Good stability
• Convenient transportation
• Easy operation and maintenance

The compact design allows the dredger to work efficiently in rivers, lakes, and shallow water areas.

Factory Testing Process Before Shipment

Before delivery, OCEAN Pump conducted a complete factory acceptance test.

The testing process included:

Diesel Engine Test

Engine starting performance was checked to ensure:

• Smooth startup
• Stable running speed
• Normal fuel system operation

Sand Pump Test

Engineers inspected:

• Pump rotation direction
• Pump vibration
• Leakage condition
• Pump operation stability

Alignment Inspection

The technical team checked whether:

• Pump shaft
• Diesel engine output shaft
• Belt drive system

were properly aligned.

This ensures efficient power transmission and prevents unnecessary wear.

Winch System Test

The front manual winch system was tested to confirm:

• Smooth lifting operation
• Reliable control
• Safe operation

Successful Delivery and Customer Support

After completing all testing procedures, the equipment successfully met OCEAN Pump factory standards.

Testing videos, operation instructions, and technical documents were prepared and provided to the customer to support installation and operation at the project site.

The 8-inch large particle sand dredger will soon be shipped to Fiji and put into river sand dredging operations.

Applications of 8 Inch Large Particle Sand Dredger

OCEAN Pump large particle sand dredgers are widely used in:

• River sand mining
• Gravel dredging
• Lake cleaning
• Canal dredging
• Mining slurry pumping
• Tailings treatment
• Land reclamation
• Beach nourishment projects
• Waterway maintenance

Why Choose OCEAN Pump?

With more than 20 years of experience in dredging equipment manufacturing, Taian OCEAN Pump Co., Ltd. provides professional solutions for global customers.

Our advantages include:

✔ Professional dredging equipment design
✔ Customized sand dredger manufacturing
✔ Heavy-duty sand pump technology
✔ Complete project solutions
✔ Factory testing before shipment
✔ Technical support and after-sales service

From a single sand pump to a complete dredging system, OCEAN Pump provides reliable equipment solutions according to different project requirements.

Conclusion

The successful testing of this 8-inch large particle sand dredger demonstrates OCEAN Pump’s strong capability in customized dredging equipment manufacturing.

For river sand extraction projects involving coarse sand, gravel, and large particles, OCEAN Pump provides efficient, durable, and cost-effective dredging solutions.

OCEAN Pump — Your Professional Partner for Sand Pump and Dredging Solutions Worldwide.

TAIAN OCEAN PUMP CO.,LTD

DORIS CHEN

WHATSAPP :+86 18562293319

Email ：oceanpump12@tsbeng.com