Used Filters for Sale
Filters are industrial separation systems designed to remove solids from liquids or gases, improving product purity, process efficiency, and environmental compliance. Used across chemical processing, food and beverage production, pharmaceuticals, wastewater treatment, and other industrial operations, filters play a critical role in clarification, dewatering, and product recovery. Aaron Equipment offers used filters for sale in a range of configurations to support different filtration methods, capacities, and material requirements. Browse available inventory below or explore filter types to find equipment suited to your application.
Stock No.:
43339002Unused Rosenmund Guedu RGFD Filter Dryer – 316L Stainless Steel, PLC Controlled
Unused- Rosenmund Guedu RGFD Filter Dryer fabricated of 316L stainless steel with approximately 0.25 m2 filtration area. This premium OEM agitated filter dryer was never installed or placed into service. Features include a side solids discharge and column-mounted, two-arm S-blade heated agitator with mechanical seal and bellows for filtration, cake washing, mixing, and vacuum drying in a single enclosed vessel. Includes an APOVAC explosion-proof gas recirculation system and an additional APOVAC unit originally supplied for a tray dryer. Mechanical components are present; however, controls were never built, and the purchaser will need to design and implement a control system. Engineering drawings are available. Ideal for pilot plant, process development, scale-up, and small-batch production of pharmaceutical APIs, fine chemicals, specialty chemicals, biotechnology products, and other high-value materials requiring contained filtration and drying. Built in 2001.
MFR: Rosenmund
Stock No.:
11585129Used Rosenmund RSD-0.3 316L Stainless Steel Filter Dryer – 0.3 m², 45-Gallon, Full Vacuum with APOVAC System
Used- Rosenmund Filter Dryer RSD -3, (0.3) Square Meter, Model # RSD-0.3-528-89. T316L stainless steel contacts. Internal rated 100 psi / Full vacuum at 400 degrees F. T304L Stainless steel Jacket rated 150 psi at 400 degrees F. Maximum capacity vessel 45 gallon. Hydraulic agitator. Side discharge. Built 1990. NB 911. Vacuum pump, receiver and control panel. APOVAC 3.2/850 PMZF2510 Liquid Ring vacuum pump skid mounted with receiver.
MFR: Nutsche
Stock No.:
54687078Used Straight Line vacuum belt filter, model 1 X10, 12" wide x 124" long filter area, with rubber belt, on board vacuum system with 3 stainless steel receiver tanks, poly pumps and 25 hp liquid ring ...
Used Straight Line vacuum belt filter, model 1 X10, 12" wide x 124" long filter area, with rubber belt, on board vacuum system with 3 stainless steel receiver tanks, poly pumps and 25 hp liquid ring vacuum pump with controls, serial# SL32085. Shipping dimensions are 65"w x 195"l x 85"h.
MFR: Straight Line
Stock No.:
11059255Used US Filter Pressure Leaf Filter – Auto Jet (1300 Sq. Ft.)
Used US Filter Pressure Leaf Filter Auto Jet (1300 Sq. Ft.). MAWP 150/FV at 400 deg.F. MDMT -20 deg.F at 150 PSI. Shell is 4'6" diameter x 15' long. Inlet (2) 3", outlet 6", spray header 3", drain 10". Material 316 Stainless Steel. No elements. Requires 48" filter elements.
MFR: US Filter
Stock No.:
53926001Unused SINO XMZ50/870 Hydraulic Filter Press – 50m² Solid-Liquid Separation System. Gold Mining Leach Plant.
Unused SINO Filter Press, Model XMZ50/870, hydraulic plate and frame filter press used for solid-liquid separation in industries such as palm oil processing, mining, metallurgy, and wastewater treatment. (38) Polypropylene filter plates measuring 870 mm / 34.35" each, with a total filtration area of 50 square meters / 1766 cuft and a filtration volume of 748 liters. Operating at a pressure of 0.6 MPa, the unit is made of carbon steel and includes a hydraulic closing mechanism and cake discharge system. Its dimensions are 4110 mm (L) 1400 mm (W) 1230 mm (H), and it weighs approximately 3456 kg. S/n N/A. Year 2020. Gold Mining Leach Plant.
Stock No.:
53926002SINO XMZ50/870 Plate & Frame Filter Press for Palm Oil, Mining, & Wastewater
Unused SINO Hydraulic Filter Press, Model XMZ50/870. Hydraulic plate and frame filter press used for solid-liquid separation in industries such as palm oil processing, mining, metallurgy, and wastewater treatment. (38) Polypropylene filter plates measuring 870 mm / 34.35" each, with a total filtration area of 50 square meters / 1766 cuft and a filtration volume of 748 liters. Operating at a pressure of 0.6 MPa, the unit is made of carbon steel and includes a hydraulic closing mechanism and cake discharge system. Its dimensions are 4110 mm (L) 1400 mm (W) 1230 mm (H), and it weighs approximately 3456 kg. S/n 230114FP08. Year 2020.
Stock No.:
539260032020 SINO XMZ50/870 Filter Press – 50m², 748L, Hydraulic Plate & Frame System
Unused SINO Model XMZ50/870 Filter Press. Hydraulic plate and frame filter press used for solid-liquid separation in industries such as palm oil processing, mining, metallurgy, and wastewater treatment. (38) Polypropylene filter plates measuring 870 mm / 34.35" each, with a total filtration area of 50 square meters / 1766 cuft and a filtration volume of 748 liters. Operating at a pressure of 0.6 MPa, the unit is made of carbon steel and includes a hydraulic closing mechanism and cake discharge system. Its dimensions are 4110 mm (L) 1400 mm (W) 1230 mm (H), and it weighs approximately 3456 kg. S/n 230114FP06. Year 2020.
Stock No.:
539260042020 SINO XMZ50/870 Hydraulic Filter Press – 50m² | 748L | 1766 CuFt Capacity
Unused SINO 1766 Cubic Foot Filter Press, Model XMZ50/870. Hydraulic plate and frame filter press used for solid-liquid separation in industries such as palm oil processing, mining, metallurgy, and wastewater treatment. (38) Polypropylene filter plates measuring 870 mm / 34.35" each, with a total filtration area of 50 square meters / 1766 cuft and a filtration volume of 748 liters. Operating at a pressure of 0.6 MPa, the unit is made of carbon steel and includes a hydraulic closing mechanism and cake discharge system. Its dimensions are 4110 mm (L) 1400 mm (W) 1230 mm (H), and it weighs approximately 3456 kg. S/n 230114FP09. Year 2020.
Stock No.:
54687003Used JWI 1450 mm Recessed Plate Filter Press – 194 Cu Ft
Used JWI 1450 mm Recessed Plate Filter Press With 108 Polypropylene Plates And 194 Cubic Foot Cake Capacity. Equipped with (108) polypropylene recessed filter plates, Plate #4L78, measuring approximately 57" wide x 57" high x 2.5" thick, with top center feed eye and four corner filtrate eyes. Provides an estimated 3,784 square feet of filtration area and approximately 194 cubic feet of total cake volume with 32 mm cake thickness. Heavy-duty frame is rated for 100 psi. Overall dimensions are approximately 34' long x 5.5' wide x 8' high. Hydraulic cylinder has been rebuilt. Good working condition. Possible applications include liquid/solid separation, sludge dewatering and filtration of compatible wastewater, chemical, mining, plating, food processing and other industrial process slurries.
MFR: JWI
Stock No.:
54687203Used Avery Filter Co. recessed plate filter press model 470LS/12/32. The poly plates are 470 mm square. The 12 chambers have a total cake capacity of 32 mm and 2 cu.ft. cake. The filter area is 42 sq...
Used-Avery Filter Co. recessed plate filter press model 470LS/12/32. The poly plates are 470 mm square. The 12 chambers have a total cake capacity of 32 mm and 2 cu.ft. cake. The filter area is 42 sq.ft. with a squeeze pressure of 100 psi. It is designed for corner feed and simple wash. Serial number 983593.
MFR: Avery
Stock No.:
53894001Used WSI 2.2 Meter Extended Gravity Twin Wire Mud Press, Model MM-2200-EXT
Used- WSI 2.2 Meter Extended Gravity Twin Wire Mud Press, Model MM-2200-EXT Gravity. Designed and built to receive pre-processed conditioned" mud sludge flow and remove a major portion of the water (Filtrate) from the mud. The average design flow of the 2.2 meter unit is 250 gallons per minute (gpm). Unit functions to dewater sludge by entrapping a uniform thin layer of conditioned sludge between two endless, porous synthetic belts. The feed box receives conditioned mud sludge flow from the upstream sludge conditioning system and distributes it in a uniform layer over the belt as the belt moves the sludge layer forward from feed box onto the gravity zone. The sludge moving through gravity zone is initially dewatered as gravity pulls the filtrate from the sludge layer through the porous belt to the catchment pan below. The wedge zone entraps the gravity thickened sludge forming a sludge sheet between the two belts. Filtrate (liquid extracted from the sludge) is pressed from the entrapped sludge cake as it traverses the length of the wedge zone to the Doctor blades. Mechanical pressure is applied to the belts to force a major portion filtrate from the sludge as it traverses the machine experiencing ever increasing pressure along its path to the dried sludge discharge point. Dry weight is 35,000 lbs; Serial # WBP-2.2M-25.0-004, New in 2017.
Stock No.:
54687097Used U.S. Filter Company Auto jet self cleaning (rotating leaves) vertical pressure leaf filter. This unit is insulated for chill filtering. It has 16 each 34" rotating leaves vertical mounted filtra...
Used U.S. Filter Company Auto jet self cleaning (rotating leaves) vertical pressure leaf filter. This unit is insulated for chill filtering. It has 16 each 34" rotating leaves vertical mounted filtration screens on a horizontal rotating shaft. Quick openning head. 2.5" and 3.5" Inlet and 6'' diameter discharge. Driven by 1/2 hp a Duty Master Motor 1725 RPM. Requires 230/460 vac 3 ph. The Unit has 68" x 84" overall width and length and 87" overall height. Shell tested as 304 stainless.
MFR: US Filter
Types of Used Filters Available
Aaron Equipment offers a variety of used filters designed for different separation processes, throughput requirements, and material characteristics.
Filter Presses – Batch filtration systems that use pressure to separate solids from liquids, commonly used for sludge dewatering and high-solids applications.
Nutsche Filters – Enclosed filtration units ideal for solid-liquid separation, washing, and drying in pharmaceutical and chemical processing.
Rotary Vacuum Filters – Continuous filtration systems used for high-volume separation of slurries in chemical, mineral, and wastewater operations.
Pressure Leaf Filters – Vertical or horizontal vessels designed for high-efficiency filtration of liquids with low solids content.
Cartridge Filters – Compact filtration systems used for fine particle removal and polishing applications in food, beverage, and pharmaceutical processes.
Horizontal Belt Vacuum Filters – Continuous filtration systems designed for large-scale solid-liquid separation and cake washing applications.
Filter Applications & Industry Uses
Used filters are essential in processes requiring separation of solids from liquids or gases to improve product quality and process efficiency. Depending on the filter type, these systems support batch or continuous filtration, fine particle removal, and dewatering.
Common industries and applications include:
Chemical processing: Catalyst recovery, slurry separation, and product purification
Food and beverage: Clarification, polishing, and ingredient processing
Pharmaceutical and biotechnology: Sterile filtration and product recovery
Wastewater treatment: Sludge dewatering and solids removal
Mining and minerals: Tailings processing and slurry filtration
Used Filter Buying Considerations
When selecting a used filter, evaluate both process requirements and equipment condition:
Filtration Type and Process Design: Determine whether batch or continuous filtration is required
Throughput and Capacity: Match system size and filtration area to production needs
Material Compatibility: Ensure construction materials suit process fluids and operating conditions
Automation and Controls: Review control systems, discharge mechanisms, and integration requirements
Condition and Maintenance History: Inspect filter media systems, plates, seals, and structural components
Why Buy Used Filters
Buying used filters can significantly reduce capital costs while still delivering reliable separation performance. Many filtration systems are available for immediate shipment, helping facilities avoid long OEM lead times. Purchasing used equipment also provides access to proven filtration technologies already used in demanding industrial environments.
Sell Your Used Filters
Aaron Equipment purchases surplus and used filters across a wide range of manufacturers and configurations. If you are upgrading equipment, shutting down operations, or selling idle assets, our team can assist with direct purchases or consignment.
A filter is an industrial separation device used to remove solids from liquids or gases. Filters are commonly used in processes requiring clarification, purification, or dewatering across many industries.
Used filters include filter presses, nutsche filters, rotary vacuum filters, pressure leaf filters, cartridge filters, and horizontal belt vacuum filters. Each type is designed for specific filtration processes, material characteristics, and production requirements.
Choosing the right filter depends on the type of material being processed, solids concentration, required throughput, and whether batch or continuous operation is needed. Equipment design, filtration media, and construction materials should also align with process requirements.
The cost of a used filter varies based on type, size, manufacturer, capacity, and condition. Larger or specialized filtration systems typically command higher prices. Availability and application requirements will also influence pricing.
Yes. Aaron Equipment purchases surplus and used filters from a wide range of manufacturers and configurations. Submit your equipment details to request an evaluation for resale or consignment.