Used Decanter Centrifuges for Sale
Decanter centrifuges are continuous separation systems designed to remove solids from liquids using high-speed rotational force. These horizontal centrifuges feature a rotating bowl and an internal scroll conveyor that continuously separates and discharges solids, making them ideal for high-throughput processing. Used decanter centrifuges are widely used in wastewater treatment, chemical processing, food production, and industrial manufacturing where efficient solid-liquid separation is required. Aaron Equipment offers used decanter centrifuges for sale in a range of bowl sizes, drive configurations, and capacities to meet various process demands.
Stock No.:
41174052Used Alfa Laval AVNX 4055 Solid Bowl Decanter Centrifuge — 30 kW Motor, 3250 RPM
Used- Alfa Laval Solid Bowl Decanter Centrifuge, Model AVNX 4055. This Alfa Laval AVNX4055 decanter unit is in excellent working condition and includes original Alfa Laval lifting tools and a steering panel with a new touch screen. Max G-force: 3.157, max bowl speed: 3250 rpm. Gear: DD 3,5 kN, Drum diameter: 353/202 mm, Beach angle: 20, max sludge density: 1,2 kg/dm3, max feed temperature: 95C. Main drive motor: 30 kW Back drive: Electronic Brake Control automatic system. Last used for sludge dewatering. Our freight specialists can assist you with door to door transportation and all customs documents needed to make the process go as smoothly as possible.
MFR: Alfa Laval
Stock No.:
41174058Pieralisi FP 600-2RS Decanter Centrifuge. Used
Used- Pieralisi FP 600-2RS Decanter Centrifuge. AISI 304 Stainless Steel construction (product contact areas). Maximum bowl speed 4100 rpm, single row cake discharge ports, conveyor, casing, gearbox, Approx 15 Kw/22.5 HP 2 HP 380/3/50 ABB drive motor. On 4 legs. Reported rebuild. Previous used in a WWT application. Our freight specialists can assist you with door to door transportation and all customs documents needed to make the process go as smoothly as possible
MFR: Pieralisi
Stock No.:
41174061Used Pieralisi Hercules 470/3 Decanter Centrifuge – 4000 RPM, SS, WWT Application, Complete System
Used- Pieralisi Hercules 470/3 Decanter Centrifuge. Stainless Steel construction (product contact areas). Maximum bowl speed 4000 RPM, single row cake discharge ports, conveyor, casing, gearbox, 37Kw 380/3/50 drive main motor. Roto-variator motor 15 Kw, 380/50/3, On 4 legs. Control panel, pumps, sensors, valves, piping and additional infrastructure. Previously used in a WWT application. Our freight specialists can assist you with door to door transportation and all customs documents needed to make the process go as smoothly as possible
MFR: Pieralisi
Stock No.:
41174063Used – Alfa Laval MRNX 414B-31G Solid Bowl Decanter Centrifuge – 316 SS, Food-Grade
Used- Alfa Laval MRNX 414B-31G Solid Bowl Decanter Centrifuge. 316 Stainless Steel construction (product contact areas). Maximum bowl speed 3700 RPM. Single row of lined cake discharge ports with wear liners, liquid plate dams, base, stainless steel casing, gearbox, Approx. an 11 kW (14.7 HP), 3/50/400-Volt main drive motor. Back drive. Frame mounted on (4) legs. Sanitary design with CIP cleaning. Previously used in a food application. Our freight specialists can assist you with door to door transportation and all customs documents needed to make the process go as smoothly as possible
MFR: Alfa Laval
Stock No.:
41174073Used Hiller DP 45-422 Solid Bowl Decanter Centrifuge | 2304 Duplex SS | Wastewater Dewatering
Used Hiller DP 45-422 Solid Bowl Decanter Centrifuge | 2304 Duplex SS | Wastewater Dewatering. Alloy 2304 (1.4362) on product contact parts. Maximum bowl speed 3800 rpm. Working bowl speed 3500 rpm. Single lead conveyor with single row lined cake discharge ports with ware liners. Approximate 30 KW (45 hp) 3/50/380 Volt main drive motor, frame/casing and additional infrastructure. On 4 legs. Control panel. Previously used in a Wastewater Treatment Application. New year 2012. Our freight specialists can assist you with door to door transportation and all customs documents needed to make the process go as smoothly as possible.
Stock No.:
41174074Hiller DP 45-422 Industrial Decanter Centrifuge with Duplex Stainless Bowl | Sludge Dewatering
Hiller DP 45-422 Industrial Decanter Centrifuge with Duplex Stainless Bowl | Sludge Dewatering. Alloy 2304 (1.4362) on product contact parts. Maximum bowl speed 3800 rpm. Working bowl speed 3500 rpm. Single lead conveyor with single row lined cake discharge ports with ware liners. Approximate 30 KW (45 hp) 3/50/380 Volt main drive motor, frame/casing and additional infrastructure. On 4 legs. Control panel. Previously used in a Wastewater Treatment Application. New year 2012. Our freight specialists can assist you with door to door transportation and all customs documents needed to make the process go as smoothly as possible.
Stock No.:
41174076Used GEA Westfalia Fishmaster CF 5000 Decanter Centrifuge | Fish Oil & Protein Processing
Used GEA Westfalia Fishmaster CF 5000 Decanter Centrifuge | Fish Oil & Protein Processing. Alloy 2304 (1.4462) stainless steel (product contact areas). Max bowl speed 4000 rpm, 2 phase separation (liquid/solids) design, single row of lined cake solids discharge ports, base, casing, gearbox, back drive and control panel. Previously used in a Fish oil application. New year 2015. Reposted rebuild. Our freight specialists can assist you with door-to-door transportation and all customs documents needed to make the process go as smoothly as possible.
MFR: GEA Westfalia
Stock No.:
41174077Used 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
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.
MFR: Alfa Laval
Stock No.:
41174079Used Alfa Laval NX 438B-31G Solid Bowl Decanter Centrifuge – 316 SS High-Speed Separation System
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.
MFR: Alfa Laval
Stock No.:
48744024Used Pieralisi Maior 3 Decanter Centrifuge
Pieralisi Maior 3 Decanter Centrifuge. Stainless Steel construction (product contact areas). Maximum bowl speed 4000 rpm, single row cake discharge ports, conveyor, casing, gearbox, Approx 22 HP 380/3/50 drive motor. On 4 legs. Reported rebuild. Previous used in an olive oil application. Used. Our freight specialists can assist you with door to door transportation and all customs documents needed to make the process go as smoothly as possible.
MFR: Pieralisi
Stock No.:
49670009GEA Westfalia CA 220-01-00 Decanter Centrifuge.
Used- GEA Westfalia CA 220-01-00 Decanter Centrifuge. Stainless steel construction (product contact areas), max bowl speed 5500 rpm, 2 phase separation (liquid/solids) design, single row of lined cake solids discharge ports, base, casing, gearbox. On 4 legs. Previously used in an olive oil application. Our freight specialists can assist you with door to door transportation and all customs documents needed to make the process go as smoothly as possible.
MFR: GEA Westfalia
Decanter Centrifuge Applications & Typical Use Cases
Used decanter centrifuges are commonly used in applications requiring continuous solid-liquid separation. Typical use cases include:
Sludge thickening and dewatering in wastewater treatment
Separation of chemical slurries and industrial byproducts
Oil, fat, and grease separation in food processing
Biomass and fermentation separation in biotechnology
Clarification of process liquids in industrial operations
These machines are well-suited for handling high solids content and continuous processing environments.
When to Choose a Decanter Centrifuge
Decanter centrifuges are best suited for operations requiring continuous separation and automated solids discharge. They are typically selected over batch centrifuges when high throughput and minimal operator intervention are priorities. Processes involving slurries with significant solids content or requiring consistent, uninterrupted separation performance benefit from decanter centrifuge systems.
Used Decanter Centrifuge Buying Considerations
When evaluating a used decanter centrifuge, consider:
Bowl diameter and length: Affects separation efficiency and throughput capacity
Differential speed: Controls solids conveyance and separation performance
Torque rating and drive system: Important for handling heavy or abrasive materials
Solids handling capacity: Must align with feed concentration and production requirements
Wear components and maintenance history: Evaluate scroll condition, bearings, and rebuild records
Why Buy Used Decanter Centrifuges
Purchasing a used decanter centrifuge can significantly reduce capital costs while maintaining reliable separation performance. Many units are available for immediate shipment, helping facilities avoid long OEM lead times. Used equipment also provides access to proven, industrial-grade systems suitable for demanding applications.
Sell Your Used Decanter Centrifuges
Aaron Equipment purchases surplus and used decanter centrifuges from a wide range of manufacturers and configurations. Whether you are upgrading equipment, liquidating assets, or have idle inventory, our team can assist with buyouts or consignment opportunities.
A decanter centrifuge is a continuous separation machine that uses centrifugal force to separate solids from liquids. It features a rotating bowl and internal scroll conveyor that automatically removes solids, making it ideal for high-volume processing.
Decanter centrifuges are used for sludge dewatering, slurry separation, oil and fat clarification, and industrial wastewater processing. They are commonly used in chemical, food, and environmental applications requiring continuous separation.
Decanter centrifuges operate continuously and automatically discharge solids, while basket centrifuges typically run in batch cycles and require manual or semi-automated unloading. Decanters are preferred for high-throughput operations, while basket centrifuges are used for specific batch processes.
The cost of a used decanter centrifuge depends on factors such as size, manufacturer, capacity, condition, and configuration. Larger or specialized units typically command higher prices. Contact Aaron Equipment for current availability and pricing.
Yes. Aaron Equipment purchases used decanter centrifuges across multiple manufacturers and configurations. If you have equipment available for sale, submit your details to request an evaluation.