General FAQs
What is a Shark Class Dredge?
The Shark Class Conventional Dredge combines a conventional dredge-operating configuration with modular design for ease of transportation. The Shark is often used by sand and gravel producers and contractors. Standard discharge sizes range from 10 inches through 24 inches. For more information, please consult DSC’s Shark page.
Where can I find replacement parts?
DSC’s Parts Express is available 24/7, to quickly ship dredge parts for both replacement and regular maintenance. Visit the Parts Express page for more information.
At what digging depth should I consider a ladder pump?
A submerged pump, in a nutshell, raises production due to increased suction inlet pressure even at shallow depths and low production rates. Economic issues usually dictate the decision of whether to purchase a ladder pump or not. Without adding an elaborate jet system in the pump suction, which is very inefficient and costly at or near sea level, if you plan to dig deeper than 45 feet and need to average more than 300 tons per hour of production, it is more cost effective to use a ladder pump or a combination ladder pump and hull-mounted pump. At DSC, any of our sales staff, with the help of one of our four licensed professional engineers, will gladly do a project analysis to help you choose the most cost-effective dredge to satisfy your production needs.
Why are DSC's dredges PLC-controlled instead of being equipped with manual controls?
The PLC allows the dredge to interface with the processing plant and boosters, and also allows different automation schemes to be employed. The PLC has revolutionized the hydraulic control system. It has allowed the hydraulic oil, valves and hose to stay in the hydraulic room or engine room, so they no longer reside in the control room or lever room. For more information about automation and controls, please see our Automation page.
Why does the Marlin dredge employ the torque tube instead of the line shaft with cutlass bearings?
Torque tubes require less horsepower because they use antifriction bearings, as opposed to the cutlass bearings, which are basically rubber sleeve-type bearings or “friction bearings.” Cutlass bearings must be flushed with clean water, which not only requires horsepower to drive the water pump, but also may be impossible to obtain in some dredging environments.
Why does DSC use square flotation tanks instead of round tanks?
Square tanks are more stable for a given size than round tanks. Square tanks are also more user-friendly because a simple addition of handrails creates a safe work platform. Special grating schemes must be devised on round tanks to allow the addition of a personnel walkway on the top of the tank. Because square tanks are more expensive to manufacture, however, they are not often used.
What does the term "critical line velocity" mean?
This is the lowest possible velocity at which the dredged material will stay in suspension and move through the pipeline in a heterogeneous mixture. Below this velocity, the material begins to separate and fall out in the pipeline. The critical line velocity changes with dredging conditions and the type of material being pumped. If the operator continues to pump below this point, the pipeline will plug with material and the dredge will stop working.
What is a Wolverine Class Dredge?
The Wolverine Class Conventional Dredge is 68 feet in length and is offered in a 10-inch discharge configuration. The Wolverine can dig down to 25 feet below the surface and allows for a maximum particle clearance of 6 inches. This tough, portable dredge is perfect for the light contractor and is fully functional by one person. For more information, please consult DSC’s Wolverine page.
What is a Badger Class Dredge?
For more marine dredging pump supplierinformation, please contact us. We will provide professional answers.
The Badger Class Conventional Dredge is offered in an 8-inch configuration. With a maximum digging depth of 20 feet, this 54-foot-long dredge is ideal for smaller dredging jobs where more compact equipment is required due to work area limitations. For more information, please consult DSC’s Badger page.
Who is DSC Dredge, LLC?
DSC is a world leader in Customized Dredging Solutions that provides customers with new dredges, dredge parts and supplies. With the ability to build quality standard dredges, and specializing in custom-designed dredges, DSC has developed a dominant role in the dredge manufacturing industry. DSC today is proud of its reputation as a “World Leader in Portable Dredges.”
Why choose DSC?
DSC Dredge has decades of experience in custom dredge design and manufacturing – specializing in portable cutter suction, combination, environmental, maintenance, articulating ladder, sand and gravel, and various other mining dredges, including underwater pump dredges. With a legacy of design excellence, DSC can build a dredge that matches your exact needs.
What is a Moray Class Dredge?
The Moray Class Swinging Ladder Dredge is a swinging ladder dredge that is also equipped with an underwater dredge pump. The Moray dredge has proven itself to be highly productive and transportable. For more information, please consult DSC’s Moray page.
What is a Barracuda Class Dredge?
The Barracuda Class Swinging Ladder Dredge is a hull pump swinging ladder dredge with standard discharge sizes ranging from 10 inches through 16 inches. Barracuda dredges have been most commonly used in waterway maintenance and lake revitalization projects. For more information, please consult DSC’s Barracuda page.
What is a Marlin Class Dredge?
The Marlin Class Mining Dredge is designed to meet the needs of deep mining deposits as an efficient tool to excavate materials. The Marlin can dredge depths exceeding 100 feet. This deep digging depth is made possible by the use of an underwater pump system with a high-torque cutter drive assembly. For more information, please consult DSC’s Marlin page.
When does a dredge pump require more horsepower? On a short line or on a long line?
Required horsepower is dependent on pressure and flow rate. At a given flow rate, more horsepower is required on the long line than a short line. This is because a higher pressure is required to pump a longer pipeline at a given flow. At a given pump speed, more horsepower is required on a short line than a long line. This is because the lower friction on the short line induces a higher flow rate.
When we purchase a dredge from DSC, will we receive operator training from you?
DSC provides dredge operator training on each dredge when it is delivered and commissioned. Additionally, customers will receive classroom training, as well as dredge simulator training. Please check out our Field Services and Why Choose DSC Dredge? pages for additional details.
What type of jobs do you have open at DSC Dredges?
Please visit Careers to see a complete list of our current openings.
Do you work on the water?
DSC positions include engineering, manufacturing, sales, service and administrative-type work. All DSC positions are located within one of our three land-based facilities in Reserve, LA; Poplarville, MS; and Greenbush, MI.
Are you interested in learning more about marine dredging pump factory? Contact us today to secure an expert consultation!
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