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The Sludge Transfer Rotary Lobe Pump is a positive displacement pump specifically designed for the transfer of viscous, abrasive, and solid-laden fluids such as sludge, slurry, and wastewater. Its robust stainless steel or cast iron construction, combined with precise lobe technology, ensures consistent performance, high efficiency, and long service life — even in the toughest industrial environments.
Unlike centrifugal pumps, rotary lobe pumps maintain a constant flow regardless of pressure variations, making them ideal for handling thick, non-Newtonian materials with high solid content. This makes them a preferred choice for wastewater treatment, biogas plants, chemical industries, and food waste management systems.
The sludge transfer rotary lobe pump operates using two synchronized lobes that rotate in opposite directions within the pump casing. As the lobes rotate, cavities are formed between the lobes and the casing wall. These cavities trap the fluid and move it smoothly from the inlet to the outlet side of the pump.
Inlet: The suction action draws sludge or slurry into the pump chamber.
Transfer: The rotating lobes transport the medium without pulsation or turbulence.
Discharge: The sludge is expelled under steady pressure at the outlet.
Because the lobes never come into direct contact, internal wear is minimized, ensuring smooth, low-shear pumping that protects the integrity of the pumped medium.
Capable of dry self-priming, allowing reliable operation even when the inlet is partially filled or air pockets exist in the suction line.
The lobe design ensures a smooth, pulse-free flow that protects delicate media and maintains high volumetric efficiency.
Handles sludge with up to 15% dry solids, grit, sand, or fibrous materials without clogging or performance loss.
Front cover and modular layout allow for quick cleaning, inspection, or replacement of wearing parts without disconnecting piping.
Available in stainless steel, duplex steel, or coated cast iron depending on the fluid characteristics, ensuring long-term resistance to corrosion and abrasion.
Simply changing the motor rotation can reverse the flow direction — ideal for backflushing or bidirectional transfer systems.
Skid-mounted and space-saving structure makes installation simple for both stationary and mobile systems.
High mechanical efficiency and low RPM operation reduce energy consumption and extend component life.
Parameter | Value Range |
Flow Rate | 1 – 500 m³/h |
Pressure | Up to 12 bar |
Viscosity | Up to 1,000,000 cP |
Solid Content | Up to 15% |
Temperature | -20°C to 120°C |
Material | Cast Iron / Stainless Steel / Duplex Steel |
Shaft Seal | Mechanical Seal / Lip Seal / Packing Seal |
Drive Type | Electric Motor / Hydraulic / Diesel |
Mounting | Baseplate / Mobile Skid / Trolley |
Note: Custom configurations are available according to your sludge characteristics and process requirements.
The sludge transfer rotary lobe pump is widely used across multiple industries for its versatility and reliability:
Transfer of primary sludge, thickened sludge, and digested sludge.
Sludge recirculation between digesters and clarifiers.
Feeding dewatering equipment such as filter presses and centrifuges.
Pumping digestate and slurry to anaerobic digesters.
Feeding biomass mixtures and handling recirculated slurry in biogas systems.
Transferring viscous chemical sludge, polymer solutions, and oily waste.
Handling emulsions, latex, and waste streams in industrial processing.
Transporting waste residues, thick sauces, fats, and grease-laden effluents.
Hygienic-grade lobe pumps are available for sanitary applications.
Slurry and tailing transfer.
Pumping bentonite, drilling mud, or cement sludge in construction projects.
Traditional centrifugal or progressive cavity pumps often struggle with high-viscosity sludge or fibrous materials. The rotary lobe pump stands out due to:
Stable flow under pressure fluctuations
Low shear rate and minimal product degradation
High solid-passing capability
No clogging even with fibrous or stringy materials
Low maintenance costs and simple spare parts replacement
In short, it’s a high-performance and long-lasting solution that ensures uninterrupted operation and lower lifecycle cost.
When selecting a rotary lobe pump for sludge applications, consider the following parameters:
Flow Rate & Pressure: Determine the required flow capacity and discharge pressure based on your system design.
Sludge Viscosity & Solids Content: Higher solids or thicker sludge may require lower speed and larger displacement lobes.
Material Compatibility: Choose the right pump material to resist corrosion and abrasion.
Seal Type: Mechanical seals are ideal for clean sludge; packing seals are more economical for dirty or abrasive media.
Drive System: Select between electric, diesel, or hydraulic drives depending on your installation environment.
Installation Type: Fixed base, mobile trolley, or skid-mounted versions are available to meet various operational needs.
Routine maintenance is minimal and can be performed on-site:
Inspect lobe clearance regularly.
Replace wear parts such as seals or O-rings periodically.
Lubricate bearings as recommended by the manufacturer.
Use genuine spare parts for optimal performance and safety.
Thanks to its front cover design, all internal parts can be accessed within minutes — minimizing downtime and maintenance cost.
Environmental and Operational Benefits
Leak-free operation: Ensures cleaner and safer plant environments.
Low noise and vibration: Suitable for indoor and urban installations.
Energy saving: High volumetric efficiency reduces power usage.
Sustainable design: Long service life means less waste and lower carbon footprint.
The Sludge Transfer Rotary Lobe Pump is an essential piece of equipment for industries dealing with thick, viscous, or solid-laden fluids. With its high efficiency, durability, and ease of maintenance, it offers a superior alternative to conventional pumping systems.
Whether you are operating a wastewater treatment plant, biogas station, or industrial sludge recycling system, this pump ensures smooth, reliable, and energy-efficient transfer — day after day.
Choose Shanghai Jiushi Pump Manufacturing Co., Ltd. for durable and efficient rotary lobe pumps designed for sludge, slurry, and wastewater transfer.
We provide custom solutions, quality materials, and fast global delivery — ensuring stable, energy-saving operation in every industry.
✅ 15+ years manufacturing experience
✅ CE/ISO certified quality
✅ 24/7 technical support & after-sales service
Get a Quote Today: sales@jush-pump.com
Visit Us: https://www.jush-pump.com/
The Sludge Transfer Rotary Lobe Pump is a positive displacement pump specifically designed for the transfer of viscous, abrasive, and solid-laden fluids such as sludge, slurry, and wastewater. Its robust stainless steel or cast iron construction, combined with precise lobe technology, ensures consistent performance, high efficiency, and long service life — even in the toughest industrial environments.
Unlike centrifugal pumps, rotary lobe pumps maintain a constant flow regardless of pressure variations, making them ideal for handling thick, non-Newtonian materials with high solid content. This makes them a preferred choice for wastewater treatment, biogas plants, chemical industries, and food waste management systems.
The sludge transfer rotary lobe pump operates using two synchronized lobes that rotate in opposite directions within the pump casing. As the lobes rotate, cavities are formed between the lobes and the casing wall. These cavities trap the fluid and move it smoothly from the inlet to the outlet side of the pump.
Inlet: The suction action draws sludge or slurry into the pump chamber.
Transfer: The rotating lobes transport the medium without pulsation or turbulence.
Discharge: The sludge is expelled under steady pressure at the outlet.
Because the lobes never come into direct contact, internal wear is minimized, ensuring smooth, low-shear pumping that protects the integrity of the pumped medium.
Capable of dry self-priming, allowing reliable operation even when the inlet is partially filled or air pockets exist in the suction line.
The lobe design ensures a smooth, pulse-free flow that protects delicate media and maintains high volumetric efficiency.
Handles sludge with up to 15% dry solids, grit, sand, or fibrous materials without clogging or performance loss.
Front cover and modular layout allow for quick cleaning, inspection, or replacement of wearing parts without disconnecting piping.
Available in stainless steel, duplex steel, or coated cast iron depending on the fluid characteristics, ensuring long-term resistance to corrosion and abrasion.
Simply changing the motor rotation can reverse the flow direction — ideal for backflushing or bidirectional transfer systems.
Skid-mounted and space-saving structure makes installation simple for both stationary and mobile systems.
High mechanical efficiency and low RPM operation reduce energy consumption and extend component life.
Parameter | Value Range |
Flow Rate | 1 – 500 m³/h |
Pressure | Up to 12 bar |
Viscosity | Up to 1,000,000 cP |
Solid Content | Up to 15% |
Temperature | -20°C to 120°C |
Material | Cast Iron / Stainless Steel / Duplex Steel |
Shaft Seal | Mechanical Seal / Lip Seal / Packing Seal |
Drive Type | Electric Motor / Hydraulic / Diesel |
Mounting | Baseplate / Mobile Skid / Trolley |
Note: Custom configurations are available according to your sludge characteristics and process requirements.
The sludge transfer rotary lobe pump is widely used across multiple industries for its versatility and reliability:
Transfer of primary sludge, thickened sludge, and digested sludge.
Sludge recirculation between digesters and clarifiers.
Feeding dewatering equipment such as filter presses and centrifuges.
Pumping digestate and slurry to anaerobic digesters.
Feeding biomass mixtures and handling recirculated slurry in biogas systems.
Transferring viscous chemical sludge, polymer solutions, and oily waste.
Handling emulsions, latex, and waste streams in industrial processing.
Transporting waste residues, thick sauces, fats, and grease-laden effluents.
Hygienic-grade lobe pumps are available for sanitary applications.
Slurry and tailing transfer.
Pumping bentonite, drilling mud, or cement sludge in construction projects.
Traditional centrifugal or progressive cavity pumps often struggle with high-viscosity sludge or fibrous materials. The rotary lobe pump stands out due to:
Stable flow under pressure fluctuations
Low shear rate and minimal product degradation
High solid-passing capability
No clogging even with fibrous or stringy materials
Low maintenance costs and simple spare parts replacement
In short, it’s a high-performance and long-lasting solution that ensures uninterrupted operation and lower lifecycle cost.
When selecting a rotary lobe pump for sludge applications, consider the following parameters:
Flow Rate & Pressure: Determine the required flow capacity and discharge pressure based on your system design.
Sludge Viscosity & Solids Content: Higher solids or thicker sludge may require lower speed and larger displacement lobes.
Material Compatibility: Choose the right pump material to resist corrosion and abrasion.
Seal Type: Mechanical seals are ideal for clean sludge; packing seals are more economical for dirty or abrasive media.
Drive System: Select between electric, diesel, or hydraulic drives depending on your installation environment.
Installation Type: Fixed base, mobile trolley, or skid-mounted versions are available to meet various operational needs.
Routine maintenance is minimal and can be performed on-site:
Inspect lobe clearance regularly.
Replace wear parts such as seals or O-rings periodically.
Lubricate bearings as recommended by the manufacturer.
Use genuine spare parts for optimal performance and safety.
Thanks to its front cover design, all internal parts can be accessed within minutes — minimizing downtime and maintenance cost.
Environmental and Operational Benefits
Leak-free operation: Ensures cleaner and safer plant environments.
Low noise and vibration: Suitable for indoor and urban installations.
Energy saving: High volumetric efficiency reduces power usage.
Sustainable design: Long service life means less waste and lower carbon footprint.
The Sludge Transfer Rotary Lobe Pump is an essential piece of equipment for industries dealing with thick, viscous, or solid-laden fluids. With its high efficiency, durability, and ease of maintenance, it offers a superior alternative to conventional pumping systems.
Whether you are operating a wastewater treatment plant, biogas station, or industrial sludge recycling system, this pump ensures smooth, reliable, and energy-efficient transfer — day after day.
Choose Shanghai Jiushi Pump Manufacturing Co., Ltd. for durable and efficient rotary lobe pumps designed for sludge, slurry, and wastewater transfer.
We provide custom solutions, quality materials, and fast global delivery — ensuring stable, energy-saving operation in every industry.
✅ 15+ years manufacturing experience
✅ CE/ISO certified quality
✅ 24/7 technical support & after-sales service
Get a Quote Today: sales@jush-pump.com
Visit Us: https://www.jush-pump.com/