Used Alfa Laval DSNX 4850 Decanter Centrifuge. 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 applicati

🏭 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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