Product Description
Toyo DPH Hydraulic Slurry Pumps
The Toyo DPH Hydraulic Slurry Pumps provide extra-heavy-duty pumping for dense slurry containing sand, gravel, rock and abrasive sediment. Their wet-end design follows Toyo’s proven DP pump construction, while a powerful hydraulic piston motor replaces the conventional electric motor.
Therefore, operators can adjust pump speed to match changing flow and pressure requirements. Moreover, contractors can connect suitable DPH configurations directly to the hydraulic system of a compatible excavator.
Hydraulic Piston Motor Design
The hydraulic motor allows operators to vary rotational speed by controlling hydraulic oil flow. Consequently, the DPH hydraulic slurry pump can adapt its capacity and discharge performance as site conditions change.
For example, operators may reduce speed while positioning the pump or working in sensitive areas. Alternatively, higher hydraulic input can support demanding solids-transfer duties within the approved operating range.
Key Features and Benefits
The Toyo DPH Hydraulic Slurry Pumps provide:
- Hydraulic piston motor
- Adjustable rotational speed
- Excavator hydraulic-system compatibility
- Patented Toyo shaft-mounted agitator
- Closed slurry impeller
- Large solids passages
- Heavy-duty shaft and bearings
- High-chrome hydraulic wear components
- Multiple wear-plate arrangement
- Capacity up to 915 m³/h
- Particle handling up to 120 mm
- Alternative metallurgy options
- Standard operating depths up to 30 m
- Special versions for depths up to 120 m
Together, these features support major dredging, mining, excavation and sediment-removal projects.
Patented Toyo Agitator System
The Toyo agitator mounts directly on the pump shaft. During operation, it loosens compacted sand, sediment and deposited solids around the pump inlet.
Consequently, the hydraulic agitator pump creates a pumpable mixture before the impeller draws the material into the casing. Moreover, continuous agitation can reduce manual excavation and improve solids recovery from pits, lagoons and waterways.
However, engineers should confirm particle hardness, shape and concentration before selecting the pump.
Heavy-Duty Wet-End Construction
The DPH wet end uses a closed impeller with large hydraulic passages. Therefore, compatible solids can travel through the pump with fewer internal restrictions.
In addition, a strong shaft and heavy-duty bearings support changing slurry loads. As a result, the Toyo DPH Hydraulic Slurry Pumps can withstand demanding excavation and dredging cycles.
Nevertheless, maximum physical passage does not guarantee suitability for every solid. Therefore, particle characteristics remain important during pump selection.
High-Chrome Wear Components
Toyo manufactures the impeller, wear plates and agitator from cast chrome iron containing approximately 24% to 28% chromium.
Consequently, these components provide strong abrasion resistance against sand, gravel, minerals and rock particles. Moreover, selected pumps may use alternative metallurgies, including stainless steel, for suitable corrosive applications.
However, the correct metallurgy depends on slurry chemistry, abrasion level and operating temperature.
DPH Hydraulic Pump Performance
The DPH range provides pumping capacities up to approximately 915 m³/h. In addition, Toyo positions these pumps for demanding slurry densities of approximately 1.40 kg/dm³ and above.
Selected configurations can pass compatible particles measuring up to 120 mm.
However, these figures represent maximum capabilities across the overall range. Therefore, engineers should select each Toyo DPH pump from its model-specific hydraulic curve and solids-passage data.
Excavator-Mounted Slurry Pumping
The Toyo DPH Hydraulic Slurry Pumps can connect to compatible excavator hydraulic systems for mobile solids-pumping applications.
As a result, contractors may avoid installing a separate electrical power supply at the pump location. Moreover, the excavator can position the pump directly over accumulated sediment or slurry.
Consequently, this arrangement suits changing excavation faces, dredging locations and remote worksites.
However, the excavator must provide the required hydraulic oil flow, pressure, filtration, cooling and return-line arrangement.
Operating Range
Published DPH-related limits include:
- Maximum capacity: Up to 915 m³/h
- Heavy slurry density: Approximately 1.40 kg/dm³ and above
- Maximum particle size: Up to 120 mm
- Standard slurry temperature: Up to 60°C
- Permitted pH range: 4–14
- Standard operating depth: Up to 30 m
- Special operating depth: Up to 120 m
However, these limits do not apply simultaneously to every configuration. Therefore, users should confirm the selected model’s individual specification.
In addition, permissible solids concentration should come from the exact DPH model data rather than figures published for related electric DP or DPE pumps.
Toyo DPH Applications in India
The Toyo DPH Hydraulic Slurry Pumps may support applications across India such as:
- Excavator-mounted dredging
- River and canal cleaning
- Mining and quarry operations
- Sand and gravel extraction
- Harbour and marine works
- Construction-pit clean-out
- Lagoon and settling-pond cleaning
- Rock and mineral slurry transfer
- Industrial sediment removal
- Tailings and process-residue handling
- Remote solids-pumping projects
- Deep underwater slurry recovery
Moreover, the adjustable hydraulic drive suits worksites with changing operating conditions. Nevertheless, engineers should review the required head, solids characteristics and hydraulic power before final selection.
Selecting the Correct Toyo DPH Pump
Correct selection depends on:
- Required flow and total head
- Slurry density
- Maximum particle size
- Abrasion level
- Operating depth
- Excavation method
- Hydraulic oil flow
- Hydraulic operating pressure
- Oil cooling and filtration
- Return-line arrangement
Therefore, engineers should select the Toyo DPH Hydraulic Slurry Pumps from model-specific pump and hydraulic-motor data. Otherwise, an unsuitable hydraulic supply may reduce performance, overheat the system or damage the motor.
Product Enquiries in India
The Toyo DPH Hydraulic Slurry Pumps are presented through Pumps Bharat for dredging, mining, quarrying, river cleaning, sediment removal, construction and other heavy slurry applications across India.
When submitting an enquiry, please provide the required flow, total head, slurry density, particle size, operating depth and excavator hydraulic specifications. Consequently, the available DPH configurations can be evaluated against the application requirements.