Manufacturer: Alfa Laval
Model: AVNX 4055
Condition: Used – Excellent Working Condition

Description:

The Alfa Laval AVNX 4055 Solid Bowl Decanter Centrifuge is a high-performance unit designed for efficient solid-liquid separation. This centrifuge operates at a maximum bowl speed of 3250 RPM, generating up to 3,157 G-force, making it ideal for demanding sludge dewatering applications. It features a DD 3.5 kN gear system, a 353/202 mm drum diameter, and a 20° beach angle for optimal separation efficiency. Equipped with a 30 kW main drive motor and an Electronic Brake Control automatic back drive system, this unit also includes original Alfa Laval lifting tools and a steering panel with a new touchscreen interface.

Specifications:

• Model: AVNX 4055
• Max Bowl Speed: 3250 RPM
• Max G-Force: 3,157 G
• Gear System: DD 3.5 kN
• Drum Diameter: 353 mm / 202 mm
• Beach Angle: 20°
• Max Sludge Density: 1.2 kg/dm³
• Max Feed Temperature: 95°C
• Main Drive Motor: 30 kW
• Back Drive System: Electronic Brake Control (automatic)
• Controls: Steering panel with new touchscreen
• Accessories Included: Original Alfa Laval lifting tools
• Previous Application: Sludge dewatering
• Condition: Excellent working condition

Applications:

• Sludge dewatering
• Industrial wastewater treatment
• Food and beverage waste processing
• Oil and gas sludge separation
• Chemical and pharmaceutical slurry separation

Common Uses in Industries:

• Wastewater Treatment Plants – sludge thickening and dewatering
• Food & Beverage – solid-liquid separation
• Oil & Gas – drilling mud and oil sludge processing
• Chemical Processing – slurry separation
• Pharmaceutical – separation of fine particles from liquids

🏭 Manufacturer Information

Manufacturer: Alfa Laval AB
Headquarters: Lund, Sweden
Specialization: Alfa Laval is a global leader in heat transfer, separation, and fluid handling technologies. Their AVNX series decanter centrifuges are designed for high-performance sludge dewatering, wastewater treatment, and solid-liquid separation in industrial and municipal applications.

📋 Description

The Used Alfa Laval AVNX 4055 is a solid bowl decanter centrifuge, ideal for high-performance sludge dewatering and solid-liquid separation. This unit is in excellent working condition, and includes original Alfa Laval lifting tools, a steering/control panel, and a new touchscreen interface for simplified operation and monitoring.

The unit operates at a maximum bowl speed of 3250 RPM, generating up to 3,157 G-force, with a drum diameter of 353 mm and a beach angle of 20 degrees, making it highly efficient in separating sludge from liquids with solids concentrations up to 1.2 kg/dm³.

It includes a 30 kW main drive motor and an electronic back drive system (Brake Control automatic), which enhances torque control and bowl speed precision during operation. Built for maximum feed temperatures of up to 95°C, the AVNX4055 is suited for demanding sludge handling environments.

⚙️ Specifications

Solid Bowl Decanter Centrifuge (Alfa Laval Model AVNX 4055)

• Model: AVNX 4055

• Condition: Used, excellent condition

• Drum Diameter: 353 mm outer / 202 mm inner

• Max Bowl Speed: 3250 RPM

• Max G-Force: 3,157

• Beach Angle: 20 degrees

• Sludge Density Capacity: Max 1.2 kg/dm³

• Max Feed Temperature: 95°C

• Gear Type: DD 3.5 kN

• Main Motor: 30 kW

• Back Drive: Electronic Brake Control, automatic

• Control Panel: Included, with new touchscreen interface

• Accessories Included:

  • Original Alfa Laval lifting tools

  • Steering/control panel with touchscreen

• Previous Application: Sludge dewatering

🛠️ Applications

• Municipal Wastewater Treatment

• Industrial Sludge Dewatering

• Food & Beverage Waste Processing

• Pulp & Paper Waste Streams

• Oil Refining & Petrochemical Waste

• Biodiesel and Biofuel Wastewater Treatment

• Mining and Mineral Processing Sludges

📦 What Products Would This Be Used For 

• Municipal biosludge

• Industrial wastewater sludge

• Food processing effluents

• Paper mill sludge

• Oil refinery waste slurries

• Petrochemical and chemical waste

• Sludge from anaerobic digesters

• Brewery or dairy plant wastewater

• Mining tailings

• Biological sludge from water treatment plants

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Types of Drilling Mud

• Water-based mud (WBM)
• Oil-based mud (OBM)
• Synthetic-based mud (SBM)
• Air drilling fluids
• Foam drilling mud

Drilling Mud Properties

• Density
• Rheology
• Viscosity
• Yield point
• Gel strength
• Filtration control
• pH
• Lubricity

Drilling Mud Components

• Bentonite
• Barite
• Polymers
• Clays
• Emulsifiers
• Surfactants
• Weighting agents
• Fluid loss additives
• Thinners
• Dispersants

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