The 4 inch mobile dredging unit, which has a powerful air-cooled diesel engine, can dredge both gold or alluvial diamond bearing gravel. The unit is a complete setup, fitting onto a trailer, making it easier to tow, handle and move around. With a pump capacity of 47 c/m/p/h, this pump can dredge through gravel smaller than 30mm in size. The complete system weighs about 620kg.

Priming the pump is quick and takes about 2 minutes. The minimum suction length is 10m and max suction is 40 meter, with a discharge distance up to 30 meter, pump head from pump of up to 5m. The average pumped flow rate density is about 30%. The pump handles materials of up to 60 mm solids, sand, mud, clay, gravel, etc.

What does it include?

• Complete pump and diesel engine configuration, trailer mounted,
• Includes a 100L fuel tank,
• All electrical systems, Including Start / Stop and an hour meter,
• Complete prime unit with calve control,
• It also includes a battery, however, this is only for South Africa and does not support export to other countries.

Because it is such an extremely powerful pump, it is one of the best for both gold mining and diamond gravel recovery. Combine it with a wash plant or a sluice box and get the most out of your system.

Areas of use

Countries such as Madagascar, Ghana, Tanzania, DRC Congo, Nome Alaska and other African countries makes use of this pump for gold dredging. However, for Alluvial diamond gravel recovery in rivers, this pump is mainly used in Angola, Botswana, South Africa, Namibia and other African countries.
It has great versatility and is a must for any gold or alluvial dredging setup.

If you're looking for a portable 4 inch dredge pump, please see here or visit our YourTube Channel for more videos. Or, if you have more questions or need a new design, get in touch with us and we can help with the design for a new system. We have good knowledge and extensive experience in designing systems which caters for rural areas.

We have vast knowledge about different dredging areas, especially through rough countries like Africa. We're fully equipped to help you design a system suitable for your environment, no matter where you are. From design to supply, we can do it all.