USED ALFA LAVAL DSNX 4850

Used Alfa Laval DSNX 4850 Decanter Centrifuge for Sludge Dewatering | Medical & Industrial WWT. Stainless steel (product contact areas). Max bowl speed 3650 rpm, 2 phase separation (liquid/solids) design. Bowl dia: 480/263 mm (18.7/10.2), Bowl beach angle: 10, 250 mm (10") pitch, conveyor flights are protected with around 200 tungsten carbide tiles, single row of 360 deg lined cake solids discharge ports, base, casing, gearbox 6 kNm, back drive 1:169 and Alfa Laval control panel with ABC controller. Previously used in a Medical WWT application for sludge dewatering.

Used Equipment Facts About This Machine
🏭 Manufacturer Information

Manufacturer: Alfa Laval

Model: DSNX 4850

Equipment Type: Solid Bowl Decanter Centrifuge

Separation Type: 2-Phase (Liquid / Solids)

Condition: Used

Previous Application: Medical Wastewater Treatment (Sludge Dewatering)

⚙️ Description

The Alfa Laval DSNX 4850 Decanter Centrifuge is a high-performance, heavy-duty separation system engineered for continuous sludge dewatering and solid-liquid separation in demanding wastewater treatment environments. Built with stainless steel product contact surfaces and extensive wear protection, this unit is well suited for municipal, medical, and industrial WWT applications.
This centrifuge operates at a maximum bowl speed of 3,650 RPM and utilizes a 2-phase separation design to efficiently separate solids from liquids. The conveyor is reinforced with approximately 200 tungsten carbide wear tiles, significantly extending service life when processing abrasive sludges. A single row of 360° lined cake discharge ports ensures consistent solids discharge and reduced wear.
The system is supplied complete with base, casing, gearbox, back drive, and Alfa Laval control panel with ABC controller, allowing for seamless integration into existing treatment systems.

📏 Specifications

Model: DSNX 4850

Centrifuge Type: Solid bowl decanter

Separation Design: 2-Phase (Liquid / Solids)

Maximum Bowl Speed: 3,650 RPM

Bowl Diameter: 480 / 263 mm (18.7" / 10.2")

Bowl Beach Angle: 10°

Conveyor Pitch: 250 mm (10")

Conveyor Protection: ~200 tungsten carbide tiles

Cake Discharge: Single row, 360° lined solids discharge ports

Gearbox Torque Rating: 6 kNm

Back Drive Ratio: 1 : 169

Product Contact Material: Stainless steel

Included Components:

Base frame

Casing

Gearbox

Back drive

Alfa Laval control panel with ABC controller

🧩 Applications

Medical wastewater treatment

Municipal sludge dewatering

Industrial wastewater treatment

Biological sludge processing

Chemical sludge separation

Pharmaceutical effluent treatment

Food and beverage wastewater

Rendering and byproduct sludge

Continuous solid-liquid separation

Environmental remediation systems

⚗️ What This Might Be Used For

Dewatering biological or chemical sludge

Reducing sludge volume for disposal

Separating suspended solids from wastewater

Improving downstream drying efficiency

Continuous operation in WWT facilities

📦 Products / Materials Commonly Processed

Wastewater sludge

Biological solids

Chemical precipitates

Pharmaceutical effluent solids

Industrial process sludge

Fine suspended solids

Organic waste streams

Treatment plant residuals

Mixed industrial slurries

Environmental waste solids
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