SPECIFICATIONS
Hydroman® Pump Description
Fishfarm pond owners know that sediment buildup reduces water quality and fish health. The Hydroman 100THY Hydraulic Dredge Pump for Fishfarm and Hydroman 150THY Hydraulic Dredge Pump for Pond solve this problem effectively. This 4 Inch 6 Inch Hydraulic Submersible Dredge Pump runs on hydraulic power from an Excavator Hydraulic Pump for Fish Pond Dredging. As a Vertical Hydraulic Dredge Pump for Underwater Slurry, it can reach deep deposits while its agitator breaks up hard sludge. With a 37kW motor, it moves up to 400 m³/h of slurry. No other pump handles aquaculture waste and compacted sediment with such efficiency.
The Hydroman 100THY Hydraulic Dredge Pump for Fishfarm isn’t just another submersible pump. It’s engineered for continuous, heavy-duty operation in the harshest underwater environments. Unlike electric pumps that overheat or fail when clogged, this hydraulic-driven unit thrives on abrasive slurries, fish waste, and uneaten feed.
Why does it outperform conventional pumps?
Because it runs at low rotational speeds (600–1000 RPM), wear is dramatically reduced. The high-chrome alloy (27%–28% chromium) agitator and impeller reach HRC65 hardness, resisting abrasion that would destroy standard pumps within weeks. You get months of trouble-free dredging, even when pumping sand, gravel, or compacted pond bottom sludge.
This pump attaches directly to your excavator’s hydraulic system or a separate diesel power pack. No electrical cables, no transformers, no risk of shock. Just plug into your machine’s auxiliary circuit and start dredging in water depths up to 40 meters (120 meters with optional pressure compensator).
Pond owners and contractors often ask: “Why go hydraulic instead of electric?” The Hydroman 150THY Hydraulic Dredge Pump for Pond answers that question with every job. Electric pumps struggle with thick slurry—their motors overheat, seals leak, and impellers wear down fast. Hydraulic pumps, on the other hand, run cool because the hydraulic fluid circulates heat away from the motor.
Another advantage: variable speed control.
You can adjust the hydraulic flow from your excavator or power pack to match the slurry density. Thick, heavy sludge? Increase flow for more torque. Thin, watery waste? Reduce speed to save fuel and reduce wear. Electric pumps can’t do that—they run at fixed speed regardless of load.
Plus, the Hydroman 150THY handles solids up to 150mm in diameter. That means small rocks, shells, and compacted feed pellets pass right through without clogging. The integrated agitator churns up settled material, turning hard-packed pond bottoms into pumpable slurry. You’ll drain your pond or lagoon faster and cleaner than any electric alternative.
Key Design Features of the 4 Inch 6 Inch Hydraulic Submersible Dredge Pump
The 4 Inch 6 Inch Hydraulic Submersible Dredge Pump comes in two discharge sizes to match your flow requirements. Both share the same rugged DNA:
4-inch (100mm) version – Ideal for smaller fishfarm ponds and tight access areas. Delivers up to 200 m³/h.
6-inch (150mm) version – Built for large aquaculture facilities, mining settling ponds, and river dredging. Delivers up to 400 m³/h at 70% solids concentration by weight.
Additional design highlights:
High-chrome agitator with hardened teeth – Breaks up compacted sediment, clay, and even light gravel before it reaches the impeller.
Modular hydraulic motor (37kW) – Compatible with most excavators (5–15 ton class) requiring 80–150 L/min flow at up to 250 bar. Also works with standalone diesel hydraulic power packs.
Pressure compensator – Standard on deep-water orders, allows operation down to 120 meters without seal failure.
Quick coupler mount – Attach to your excavator arm in minutes. Replace the bucket and start dredging without special tools.
Cartridge mechanical seal – Double-row silicon carbide seals handle sand and silt without leaking. Easy field replacement.
Every wear part—agitator, impeller, volute liner—is cast from high-chrome alloy. You’ll get 3–5 times longer life than rubber-lined or cast iron pumps.
Hydroman® Hydraulic Dredge Pump Parameters
| Hydraulic Pump Specification | Hydraulic Motor Specification | |||||||
| Model | Outlet (mm) | Capacity (m³/h) | Head (m) | Power (KW) | Solids handling (mm) | Displacement (ml/r) | Pressure (Mpa) | Oil capacity (L/min) |
| 100/150THY37-6P | 100/150 | 150 | 35 | 37 | 30 | 107 | 21 | 107 |

Fishfarm Pond Cleaning with Excavator Hydraulic Pump for Fish Pond Dredging
Imagine cleaning a one-hectare fishfarm pond without draining it. That’s exactly what the Excavator Hydraulic Pump for Fish Pond Dredging enables. Attach the Hydroman® pump to your excavator’s arm, lower it into the water, and use the machine’s existing hydraulic system to power the pump.
How it works in practice:
Position the excavator on the pond bank or a floating barge. The vertical hydraulic pump hangs below the water surface, agitator spinning just above the bottom sludge. As you swing the arm back and forth, the agitator loosens waste, and the pump sucks up the slurry, discharging it through a floating pipeline to a dewatering bag or drying bed.
Results you can expect:
Removes 90% of bottom sediment in a single pass
Reduces ammonia and hydrogen sulfide levels, improving fish survival rates
Extends pond useful life by 3–5 years between major cleanouts
No need to catch and relocate fish—dredge around them safely
Fishfarm operators in Southeast Asia and Latin America have cut pond cleaning costs by 60% using this method compared to manual excavation or draglines.

Underwater Slurry Removal in Mining and Construction Using Vertical Hydraulic Dredge Pump for Underwater Slurry
The Vertical Hydraulic Dredge Pump for Underwater Slurry isn’t limited to aquaculture. Mining and construction contractors rely on it for tough slurry handling jobs where electric pumps fail.
Typical mining use:
Tailing dams and settling ponds accumulate fine solids that must be removed periodically. The Hydroman® pump sits vertically on the pond bottom, or hangs from a crane, pumping tailings slurry to a reprocessing plant or disposal area. Because it’s hydraulic, there’s no risk of sparks—safe for coal tailings or other combustible materials.
Construction site application:
Bentonite slurry from diaphragm wall construction or piling needs to be recycled or disposed of. The Vertical Hydraulic Dredge Pump for Underwater Slurry handles bentonite with up to 30% sand content without losing prime or clogging. You can pump directly from the trench or holding pond to a dewatering unit or tank truck.
Key benefit for contractors:
One excavator can do double duty—digging during the day, then powering the dredge pump at night or during off-hours. No separate generator or electrical service required. That’s real equipment utilization.
Frequently Asked Questions (FAQ)
Yes, with most standard excavators in the 5 to 15 metric ton range. The pump requires hydraulic flow of 80–150 liters per minute at up to 250 bar pressure. Most mid-size excavators provide this through their auxiliary circuit. If your machine has higher or lower flow, we offer flow control valves to match. For excavators without auxiliary hydraulics, use a standalone diesel hydraulic power pack (we can supply one).
The 4 inch (100mm) model handles up to 200 m³/h and passes solids up to 60mm. It’s lighter (about 180 kg) and works well for smaller ponds or when you need to maneuver in tight spaces. The 6 inch (150mm) model moves up to 400 m³/h, passes solids up to 150mm, and weighs about 260 kg. Choose the 6-inch if you have long discharge distances (over 500 meters) or very high solids concentration (above 50%). Both use the same 37kW hydraulic motor, so the excavator power requirement is identical.
Standard configuration is rated for continuous operation at 40 meters depth. That’s sufficient for most fishfarm ponds, which rarely exceed 10 meters. For deep mining sumps, reservoir dredging, or port maintenance down to 120 meters, we install a pressure compensator kit. This equalizes internal and external pressure, preventing seal collapse and motor housing deformation. Always specify your maximum operating depth when ordering so we can configure the pump correctly.
Why the 37kW Hydraulic Submersible Pump for Aquaculture and Heavy Duty Hydraulic Pump for Pond Dredging Is Your Best Investment
You’ve seen the features and applications. Now consider the bottom line. The 37kW Hydraulic Submersible Pump for Aquaculture and Heavy Duty Hydraulic Pump for Pond Dredging from Hydroman® delivers lower total cost of ownership than any electric or diesel-driven centrifugal pump on the market.
Calculate your savings:
No electrician costs for installation
No transformer or long power cables
No motor burnout from running dry or overload
Wear parts last 3,000+ hours in abrasive slurry
One excavator does both digging and pumping
Contractors report payback periods of under six months when replacing rented electric pumps or hiring suction dredge boats.
Still not sure?
We offer a 30-day performance guarantee. Run the Hydroman 100THY Hydraulic Dredge Pump for Fishfarm or the 150THY model on your toughest pond or slurry job. If it doesn’t outperform your current method, return it for a full refund—no questions asked.
Don’t let sediment, sludge, and compacted waste kill your fish or shut down your mining site. Get the proven solution that thousands of operators trust worldwide.
Contact Hydroman® today to discuss your specific depth, flow, and slurry conditions. Our engineers will help you select the right 4 Inch 6 Inch Hydraulic Submersible Dredge Pump configuration for your excavator or power pack. Request a quote for the Hydroman 100THY Hydraulic Dredge Pump for Fishfarm or the Hydroman 150THY Hydraulic Dredge Pump for Pond—and ask about our current stock availability. Your pond cleaning challenges end here. Reach out now!
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Contact Information
+86 180 3203 4573
+86 311 8722 1317
No. 266, Tianshan St, High-tech Zone, Shijiazhuang City 050000, China.