Used Mills for Sale
Used mills are industrial size reduction systems designed to grind, crush, or refine materials into smaller particle sizes for further processing. These systems are widely used in chemical processing, food production, pharmaceuticals, minerals, and plastics industries where particle size control is critical to product performance and consistency. Mills support processes such as grinding, pulverizing, dispersion, and homogenization across a wide range of materials. Aaron Equipment offers used mills for sale in various configurations to meet specific size reduction requirements, capacities, and material characteristics. Browse available inventory below or explore mill types to find equipment aligned with your application.
Stock No.:
51065016Used Stewart Bolling 6" x 12" Pilot Two Roll Rubber Mixing Mill
Used Stewart Bolling 6" x 12" Pilot Scale Two Roll Mixing Mill With 5 HP Gear Motor. Designed for laboratory, pilot plant and small-batch processing of compatible rubber, plastic and polymer compounds. Features (2) chrome-cored rolls measuring approximately 6" diameter x 12" long, driven by a 5 HP single-speed gear motor with a fixed gear ratio. Equipped with two-point manual roll gap adjustment for controlling material thickness and split end guides for containing material within the working roll area. Safety features include front and rear knee-operated safety mechanisms and an over-the-roll safety cage. Electrical requirements are 220/440 volts, 3-phase, 60 Hz. Serial #2560. Possible applications include rubber compounding, polymer blending, plastic material processing, sheeting, mastication and mixing of compatible natural rubber, synthetic rubber, elastomers, thermoplastic compounds, pigments, fillers and other suitable rubber or polymer formulations.
MFR: Stewart Bolling
Stock No.:
54180001Farrel Rubber/Plastic Laboratory Calender Mill – Inverted "L" 4-Roll, Adjustable Knives
Used- Farrel 4-Roll Inverted "L" Rubber/Plastic Laboratory Calendar Mill. 6" D x 13" L rolls. 500 degrees F max. roll temp. Up to 35 RPM. Fixed center roll w/ adjustable bottom, top, and offset. Full herringbone even speed gears on one side, Full herringbone friction gears on the other side. Nylon adjustable infeed guides. (2) adjustable twin knives on bottom roll. Cable safeties on both sides of frames. SCR drive w/ dynamic braking; Operators control station with variable speeds. Variable speed 7.5 HP motor. 3/460V. Serial# 73A1499.
MFR: Farrell
Stock No.:
54687053Used Richard Sizer Ltd model Orbit 70 pellet mill. The 14" diameter die has (2) rollers and (1080) .25" diameter holes. Mill has a 16.5" x 14" inlet and a 9" x 30" discharge. Mill has a 60 hp, 885 rp...
Used-Richard Sizer Ltd model Orbit 70 pellet mill. The 14" diameter die has (2) rollers and (1080) .25" diameter holes. Mill has a 16.5" x 14" inlet and a 9" x 30" discharge. Mill has a 60 hp, 885 rpm electric motor. Overall dimensions are 88" long x 46" wide x 50" tall. Serial number P1264. Requires 460 vac electrical power.
MFR: Richard Stihler GMBH
Stock No.:
50823014Used - Schutte-Buffalo-Astec Hammermill, Model AHM-20, 600 HP, Carbon Steel
Used- Schutte-Buffalo-Astec Hammermill, Model AHM-20, Carbon Steel. Approximate (2) 48" diameter x 24" wide rotors. 2-3/4"w x 4"L x 5/16" thick swinging hammers, approximately 7 rows of (14 hammers) 2 sections, 3/16" screen. 15"W x 60" Long Top feed with hopper, 60-1/2"L x 11"T bottom discharge. Driven by a 600 HP, 3/60/460 volt, 1790 rpm motor. Mounted on a frame. Includes a Twin City blower, Type RBR-SW, size 926, driven by a 200 HP, 3/60/230/460 volt, 1785 rpm motor.
MFR: Schutte
Stock No.:
50823042Used - Schutte-Buffalo-Astec AHM-20 Hammermill, 600 HP, Twin Rotor, Carbon Steel
Used- Schutte-Buffalo-Astec Model AHM-20 Hammermill, Carbon Steel. Approximate (2) 48" diameter x 24" wide rotors. 2-3/4"w x 4"L x 5/16" thick swinging hammers, approx 7 rows of (14 hammers) 2 sections, 3/16" screen. 15"W x 60" Long Top feed with hopper, 60-1/2"L x 11"T bottom discharge. Driven by a 600 HP, 3/60/460 volt, 1790 rpm motor. Mounted on a frame. Includes a Twin City blower, Type RBR-SW, size 926, driven by a 200 HP, 3/60/230/460 volt, 1785 rpm motor. Astec Serial # 16-085-299260-22-1.
MFR: Schutte
Stock No.:
50823043Heavy-Duty Schutte-Buffalo Hammermill, Model AHM-20, 600 HP, Twin Rotor
Used- Schutte-Buffalo-Astec Carbon Steel Hammermill, Model AHM-20. Approximate (2) 48" diameter x 24" wide rotors. 2-3/4" wide x 4" long x 5/16" thick swinging hammers, approximate 7 rows of (14 hammers) 2 sections, 3/16" screen. 15" wide x 60" long Top feed with hopper, 60-1/2" long x 11" tall bottom discharge. Driven by a 600 HP, 3/60/460 volt, 1790 rpm motor. Mounted on a frame. Includes a Twin City blower, Type RBR-SW, size 926, driven by a 200 hp, 3/60/230/460 volt, 1785 rpm motor. Astec Serial # 16-086-299260-22-1.
MFR: Schutte
Stock No.:
54429001Used Fitzpatrick Fitzmill Model D Hammer Mill on Mobile Frame with 7.5 HP Motor
Used Fitzpatrick Fitzmill, Model D,. Stationary knives, reversible blade assembly with knives. pan fed, variable speed. Mounted on a frame with casters. Driven by a 7.5 hp, 3/60/130-460V, 1740 rpm motor. Approximate OAD 59" x 26" x 58".
MFR: Fitzpatrick
Stock No.:
11059358Used Fitzpatrick DAS06 FitzMill Hammer/Knife Mill – Explosion Proof (XP) Motor
Used- Fitzpatrick DAS06 Fitzmill Hammer/Knife Mill. Stainless Steel; Pan Feed; Driven by 7.5 HP, 230/460V, 1740 rpm Explosion Proof (XP) motor. Serial# 10321. Mounted on stainless steel cart with wheels.
MFR: Fitzpatrick
Stock No.:
409351Used Fitzpatrick Fitz-Mill Model D Hammer Mill with VFD Control
Used Fitzpatrick Fitz-Mill Model D Hammer Mill with VFD Control. 5" x 6" feed throat with top hopper. Approximately 12" diameter cutting chamber. (16) 4" long x 1" wide x 1/4" thick fixed blades. Driven by a 7-1/2hp 3/60/220/440 Volt 1750 rpm motor. Includes control panel with GS2 AC Drive. Mounted on a carbon steel frame.
MFR: Fitzpatrick
Stock No.:
52283011Used Entoleter Centrimil Impact Mill – Model FTM
Used- Entoleter Centrimil Impact Mill, Model FTM. Carbon steel construction. Includes 16" diameter rotor with 3/8" diameter pins and 2-part rotating disc. Includes 8" X 3-1/2" top infeed and 6" diameter center bottom discharge. Driven by 7.5 HP, 220/440V, 3-phase, 60 Hz ,3600 RPM motor. Mounted on a frame. Catalog# B-52900-63, Serial# 5807.
MFR: Entoleter
Stock No.:
53656001Used Fitzpatrick DAS06 Stainless Steel Hammer Mill with Screw Feeder
Used Fitzpatrick FitzMill Model DAS06 Stainless Steel Hammer Mill With Screw Feeder, 7.5 HP Drive And 749 Lbs/Hour Capacity. Industrial size reduction mill designed for controlled grinding, milling, granulation and particle size reduction of compatible dry powders, granules and bulk solid materials. Rated for processing capacities up to 749 lbs per hour, depending on material characteristics, screen selection and application, with a stated operating speed range of 1,000 to 4,600 RPM. Features an approximately 15" long x 15" wide x 10" deep feed hopper with an integrated screw feeder measuring approximately 2-1/2" diameter x 58" long. Screw feeder is driven by a 0.33 HP gear motor rated at 1,725 RPM, operating on 208230/460 volts, 3-phase, 60 Hz electrical service, through a 4.88:1 reduction gearbox. Milling chamber measures approximately 11-1/4" long x 6" wide x 16" deep and contains (16) fixed blades with blunt and knife edges, each measuring approximately 1" wide x 3-3/4" long x 1/2" thick. Main milling assembly is driven by a 7.5 HP motor rated at 1,760 RPM, operating on 230/460 volts, 3-phase, 60 Hz electrical service. Equipped with an approximately 9-1/2" long x 5-1/2" wide bottom discharge opening with screen for controlling discharged particle size. Mounted on a mobile stainless steel frame with casters. Serial #7964. Possible applications include dry powder milling, granule sizing, deagglomeration, lump breaking and particle size reduction of compatible pharmaceutical powders, nutraceutical ingredients, food powders, spices, seasonings, powdered chemicals, pigments, mineral powders, polymer additives and other suitable dry bulk solids.
MFR: Fitzpatrick
Stock No.:
35196Used C.E. Raymond #73412 Roller Mill – 350 HP Motor, Industrial Grinding
Used- C.E. Raymond #73412 Roller Mill. Directly driven by a 350 hp, 3/60/4160V, 585 rpm motor. Unit is equipped with a gear and intermediate shaft, horizontal shaft assembly with pinion, external oil lubrication system, vertical shaft, mill bottom assembly with oil reservoir, spider assembly with caps, plow support assembly with (4) four plow bodies and (4) plow tips, (4) four oil journal assemblies each with grinding roll, mill base with port liners and grinding ring, mill side and system fan directly driven by a 150 hp, 3/60/4000V, 1175 rpm motor. Less mill base air housing assembly, less dual feeder assemblies and less whizzer separator assembly, also missing the gearbox. Unit has low operating hours and is in excellent condition. This machine is commonly used in the production of Gypsum Board and Drywall.
MFR: CE Raymond
Types of Used Mills Available
Aaron Equipment offers a range of used mills designed to support size reduction, grinding, and material processing applications:
Hammer Mills – High-speed impact mills used to crush and grind materials into smaller particles through repeated hammering action.
Ball Mills – Rotating mills that use grinding media to reduce material size through impact and attrition.
Roller Mills – Compression mills that reduce material size by passing it between rotating rollers for controlled particle sizing.
Colloid Mills – High-shear mills designed for emulsifying, dispersing, and fine grinding of liquids and semi-solids.
Pin Mills – Fine grinding mills that use intermeshing pins to achieve uniform particle size reduction.
Sand & Media Mills – Wet grinding mills that use media agitation for fine dispersion and particle size reduction in slurries.
Mill Applications & Industry Uses
Used mills are essential across industries where particle size reduction and material conditioning are required. Common applications include:
Chemical Processing: Grinding powders, pigments, and intermediates
Food & Beverage: Milling grains, spices, and ingredients
Pharmaceutical Manufacturing: Fine particle size reduction for formulations
Minerals & Mining: Crushing and grinding ores and aggregates
Plastics & Polymers: Size reduction of pellets and regrind materials
These systems improve material consistency, increase surface area, and enhance downstream processing efficiency.
Used Mill Buying Considerations
When selecting a used mill, it is important to evaluate both process requirements and equipment condition:
Material Characteristics: Hardness, moisture content, and abrasiveness
Particle Size Requirements: Desired output size and uniformity
Grinding Method: Impact, compression, or attrition depending on application
Throughput Capacity: Match system output with production needs
Wear Components: Evaluate liners, hammers, or grinding media condition
Condition & Maintenance History: Review prior usage and service records
Why Buy Used Mills
Buying used mills provides a cost-effective solution for implementing size reduction systems without the long lead times of new equipment. Used mills offer proven performance and are often available for immediate shipment, helping facilities maintain production schedules and reduce capital investment.
Aaron Equipment sources high-quality mills from leading manufacturers, providing reliable solutions for demanding industrial grinding and processing applications.
Sell Your Used Mills
Aaron Equipment actively purchases surplus mills and size reduction equipment across all configurations. Whether upgrading equipment or liquidating assets, our team can help maximize value.
An industrial mill is a machine used to reduce the size of materials through grinding, crushing, or pulverizing. Mills are used to process solids into smaller particles for further manufacturing or processing.
Common types include hammer mills, ball mills, roller mills, colloid mills, pin mills, and media mills. Each type is designed for specific materials and size reduction methods.
Choosing the right mill depends on material properties, desired particle size, throughput requirements, and the appropriate grinding method for your process.
Yes. Used mills are built for long service life and can remain highly reliable when properly maintained, inspected, and refurbished if necessary.
Mills are used in chemical processing, food production, pharmaceuticals, mining, and plastics industries where size reduction is essential.