Used machines for sale
Main brands:
Alfa Laval, Ksb, Netzsch, Nordix, Omega Ice, ProMinent
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| Helical positive pumps |
Screw pumps, also known as screw pumps or progressing cavity pumps, are a type of positive displacement pump. They are designed to transfer fluids of varying viscosity, slurries, chemicals and even shear-sensitive materials. Here is information about the usefulness, functioning and types of screw pumps:
Utility:
Viscous Fluid Transfer:
They are widely used to transfer viscous fluids, such as polymers, pulps, sludges, oils and high viscosity chemicals.
Industrial Applications:
They find application in industries such as petrochemicals, water and effluent treatment, food and beverages, paper and cellulose, among others.
Handling Sensitive Materials:
They can be used to pump materials sensitive to shear, as they operate smoothly and with low shear.
Operation:
Positive Displacement Principle:
Screw pumps belong to the category of positive displacement pumps, which means they deliver a fixed amount of fluid per cycle or rotation.
Rotor and Stator Configuration:
They consist of a helical rotor that rotates inside a corresponding stator with a helical cavity. The geometry of these propellers is what creates a pumping action.
Cavity Formation:
As the rotor rotates, it creates cavities between the rotor blades and the stator walls. These cavities move axially, forcing fluid to be transferred along the pump axis.
Progressive Shift:
The progressive displacement of the cavities is what contributes to the smooth and consistent pumping of viscous fluids.
Flux control:
Flux control is achieved by varying the rotational speed of the rotor or by adjusting the geometric characteristics of the rotor and stator.
Common Types of Screw Pumps:
Standard Helical Pump:
Basic configuration with helical rotor and stator, suitable for a variety of viscous fluids.
Progressive Cavity Helical Pump:
Designed to offer a continuous and uniform flow, especially in highly viscous fluids.
Double Stage Progressive Cavity Helical Pump:
It has two cavity stages for greater efficiency in transferring viscous fluids.
Double Screw Progressive Cavity Helical Pump:
Uses two helical rotors instead of one, providing greater pumping capacity and efficiency.
Three Screw Progressive Cavity Helical Pump:
It integrates three helical rotors for even more pumping capacity.
Four Screw Progressive Cavity Helical Pump:
Incorporates four helical rotors to meet significant viscous fluid transfer demands.
The choice of the type of screw pump will depend on the specific characteristics of the fluid to be transferred, the operating conditions and the flow and pressure needs. These pumps are known for their ability to efficiently handle viscous fluids, offering an effective solution in various industrial applications. |
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Brand: Omega Ice
Pump to incorporate fruit, pulp, or other products into ice cream or processes.
Product dosing pump.
Brand: Omega Ice.
Model: Mix Pump.
With lung tank.
Frequency inverter for mixing in the tank and frequency inverter in the pump.... |
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Brand: Alfa Laval, Endress Hauser, Endress+Hauser, Inox Biaso, Nordix
Stainless steel jacketed surge tank/mixer.
Manufacturer | Brand: Inox Biaso.
Approximate capacity: 2,000 liters.
Tank agitator with a 7.5 HP motor.
With a 3 HP Nordix lobe pump.
With a 20 HP Alfa Laval self-priming centrifugal pump.
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Brand: Envase Mais, Fujinox, Marburg, Nelpas, Netzsch, Real
Complete line for filling bottles and jars.
Composed of:
– Bottle positioner.
Manufacturer | Brand: Fujinox.
Model: L - 300.
Year: 2014.
– 6 conveyor belts.
Manufacturer | Brand: Fujinox.
– Automatic labeling machine for cylin... |
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Brand: Netzsch
Components: SEW, SEW-Eurodrive
316 stainless steel helical pump.
Manufacturer | Brand: Netzsch.
Model: NM053SY02S14.
Flow rate: 10 m³/h.
For transferring liquid products. It was used for invert sugar.
Year: 2003.
Operation: 10 years with overhauls.
Stoppage: 5... |
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Brand: Netzsch
316 stainless steel helical pump.
Manufacturer | Brand: Netzsch.
For transferring highly viscous food products at temperatures up to 90°C.
Model: NM063SY02514V.
Flow rate: 9.46 m³/h.
Pumping temperature: 90°C.
316 stainless steel ca... |
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Brand: Alfa Laval, Netzsch
Stainless steel jacketed mixing tank/agitator/disperser for powders.
Composed of:
- Jacketed dispersing tank for powder products.
Approximate capacity: 500 liters.
With a 12.5 HP agitator.
With a Netzsch helical pump with a 7.5 HP moto... |
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Brand: Netzsch
Components: WEG
Positive helical pump.
Transfer / transport pump.
Manufacturer: Netzsch.
Year: 1989.
WEG motor with 1.5 HP / 1725 rpm.
1.1/2 inch inlet and 3/4" outlet.... |
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Brand: Netzsch
Components: WEG
Helical positive pump.
Pump for transfer/transport.
Manufacturer: Nemo Netzsch.
Type: NE 30 A.
Year: 2001.
Components:
1 HP three-phase WEG induction motor.... |
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Brand: Netzsch
Components: WEG
Helical positive pump.
Pump for transfer/transport.
Manufacturer: Nemo Netzsch.
Type: 2 NE40 A.
Year: 1994.
Components:
4 HP three-phase WEG induction motor.... |
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Brand: Netzsch
Positive helical pump 70,000 liters per hour | 70 m³ per hour.
Transfer / transport pump.
Manufacturer: Nemo Netzsch.
Type: NM090BY 01 L 07 J.
Quantity: Two pumps, one with forced ventilation, the other not shown in the photos.
Year: 2... |
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Brand: Netzsch
Positive helical pump 70,000 liters per hour | 70 m³ per hour.
Transfer / transport pump.
Manufacturer: Nemo Netzsch.
Type: NM090BY 01 L 07 J.
Quantity: Two pumps, one with forced ventilation, the other not shown in the photos.
Year: 2... |
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Brand: Netzsch
Positive helical pumps.
Transport / transfer pumps.
Manufacturer: Nemo Netzsch.
Type: NM090BY 01 L 07 J.
Year: 2018.
Quantity: 2 units, one with forced ventilation, the other without.
Possible specifications according to type NM090B... |
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Brand: Netzsch
Components: WEG
Positive helical transfer pump.
Brand name: Netzsch.
Internal stainless steel equipment.
Components:
Weg electric motor.... |
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Brand: Netzsch
Worm pump.
Brand: Netzsch.
Ideal for pasty pumping.
Stainless steel interior.
With silo for receiving the product.... |
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Brand: Netzsch
- Transfer pump with helical axle for liquid and pasty product.
- Stainless steel interior.
- With motor and reducer.
- Origin: multinational pharmaceutical industry.... |
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Brand: Consultec PA, Ksb, Netzsch, ProMinent
Components: WEG
Dissolved Air Flotation (DAF) System.
Wastewater Treatment Plant.
Manufacturer: Consultec PA - Environmental Protection Technology.
Model: FAD C-30 FQ.
Approximate flotation capacity: 30 m³/h.
Composed of:
- Tubular hydraulic floccu... |
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Brand: Netzsch
Helical transfer pump.
Manufacturer/brand: Netzsch.
Model: NM021B001L06B.
With a jacketed reservoir for transferring hot products, maximum flow rate of 17 liters per minute.
Can operate in temperatures ranging from -20°C to 90°C.
Resis... |
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Brand: Netzsch
Positive helical transfer pump.
Manufacturer: Nemo Netzsch.
Model: NM015 BY.
Characteristics:
- Maximum Pressure (bar): 24.
- Maximum Capacity (m³/h): 0.72.
- Rotation (rpm): 800.
Approximate dimensions:
Height: 380 mm.
Wid... |
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Brand: Netzsch
Internal stainless steel helical pump.
Brand: Netzsch.
Year: 2013.
Engine: 1,15 hp.
Rotation: 130 r.p.m.
Voltage: 220/380 v.
Dimensions: Length: 900 mm.
Width: 300 mm.
Flow rate: 3 inches.... |
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Brand: Alfa Laval, Endress Hauser, Netzsch, Tetra Pak
Components: Danfoss
Complete line for pasteurization.
Brand: Tetra Pak.
Spiraflow.
Type: C - 118.
Capacity: 14,300 liters per hour.
Negative pressure deaeration tank.
Conductivity meter.
Brand: Endress Hauser.
Heat exchanger.
Brand: Alfa Laval... |
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