USED ALFA LAVAL NX 438B-31G

Used Alfa Laval NX 438B-31G Solid Bowl Decanter Centrifuge. 316 Stainless Steel construction (product contact areas). Maximum bowl speed 3650 RPM. 360 deg single row of lined cake discharge ports with wear liners, liquid plate dams, base, stainless steel casing, gearbox, 55 kW (82.5 HP), 3/50/400-Volt main drive motor. 3.5 KN gearbox. Hydraulic back drive. Frame mounted on (4) legs. Control panel. Previously used in a fishmeal/oil application. Our Freight specialists can assist with any customs documentation to insure a smooth transition.

Used Equipment Facts About This Machine
Manufacturer: Alfa Laval
Model: NX 438B-31G
Type: Solid Bowl Decanter Centrifuge
Condition: Used

Description
Used Alfa Laval NX 438B-31G Solid Bowl Decanter Centrifuge constructed with 316 stainless steel in all product contact areas, designed for high-efficiency solid-liquid separation in demanding industrial environments. This unit features a maximum bowl speed of 3650 RPM, delivering strong centrifugal force for optimal separation performance.
Equipped with a 360° single row of lined cake discharge ports with wear liners, liquid plate dams, and a hydraulic back drive system, this centrifuge ensures consistent solids handling and precise differential speed control. Powered by a 55 kW main drive motor and a 3.5 kN gearbox, the machine is built for continuous-duty processing.
Previously used in a fishmeal/oil application, this unit is well-suited for similar high-throughput separation processes. Complete with stainless steel casing, base, control panel, and frame mounted on four legs, it is ready for integration into industrial operations.

Specifications

Manufacturer: Alfa Laval

Model: NX 438B-31G

Machine Type: Solid Bowl Decanter Centrifuge

Construction: 316 Stainless Steel (product contact areas)

Maximum Bowl Speed: 3650 RPM

Cake Discharge:

360° single row

Lined discharge ports

Wear liners included

Liquid Discharge: Liquid plate dams

Drive Motor: 55 kW

Motor Power: 82.5 HP

Electrical: 3 Phase / 50 Hz / 400 Volt

Gearbox: 3.5 kN

Back Drive: Hydraulic back drive system

Mounting: Frame mounted on (4) legs

Casing: Stainless steel

Controls: Control panel included

Previous Application: Fishmeal / fish oil processing

Applications

Fishmeal and fish oil processing

Wastewater sludge dewatering

Industrial sludge separation

Oil and fat recovery

Food processing separation

Chemical processing

Protein recovery

Rendering operations

Biofuel processing

Marine byproduct processing

What might this be used for

Separating solids from liquids in continuous processes

Recovering oil from fish or animal byproducts

Dewatering sludge in wastewater plants

Clarifying industrial process liquids

Processing protein-rich slurries

Removing fine solids from liquids

Enhancing product recovery in food production

Separating biomass in biofuel production

Handling high-solid-content slurries

Continuous centrifugal separation in industrial plants

Products this machine would be used for

Fishmeal solids

Fish oil

Sludge cakes

Clarified water

Industrial oils

Protein concentrates

Biomass residues

Rendered animal byproducts

Waste solids

Process liquids
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