Used Alfa Laval NX 438B-31G Solid Bowl Decanter Centrifuge – 316 SS High-Speed Separation System

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