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Picture for category Stock Preparation

Stock Preparation

Select Subcategory
Pulpers
Pulper Parts
Detrashers
Reject Sorters
Disk Refiners
Defibrators
Deflakers
Low Density Cleaners
High Density Cleaners
Pressure Screens

Industrial Exchange buys and sells used and surplus stock preparation equipment for paper manufacturers. Including complete systems for paper machine approach flow, recycled pulp applications, refiners, pressure screens, cleaners, washers, and more. If you are looking to purchase used stock preparation equipment or have surplus machinery for sale, explore our current inventory below. Our extensive selection features top brands such as Voith, Valmet, Kadent, Andritz, Beloit and others. Stock preparation machines are essential for preparing raw materials in the paper production process, from refining to screening. Whether you're upgrading your equipment or selling unused assets, Industrial Exchange offers a trusted platform and expert support to meet your needs.

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Picture of UV 100 Pressure Screen Black Clawson 4-foil rotor 316 SS construction.

UV 100 Pressure Screen Black Clawson 4-foil rotor 316 SS construction.

126010
UV 100 Pressure Screen Black Clawson 4-foil rotor 316 SS construction.
Picture of Black Clawson P24 Pressure Screen Stainless Steel Body Stainless Steel 4-Fo

Black Clawson P24 Pressure Screen Stainless Steel Body Stainless Steel 4-Fo

126697
Black Clawson P24 Pressure Screen Stainless Steel Body Stainless Steel 4-Foil Rotor Slots .020" Stainless Steel Basket Belt Drive With Base
Picture of (2) Black Clawson Model No. P12 Screen Housing Stainless Steel; Unused Sin

(2) Black Clawson Model No. P12 Screen Housing Stainless Steel; Unused Sin

126686
(2) Black Clawson Model No. P12 Screen Housing Stainless Steel; Unused Since Rebuild by MTR MARTCO to Original OEM Specs Order# 888775; L-45 W-45 H-56; 860 Lbs
Picture of Andritz Moduscreen F50 Rotor Type: LR Basket Type: Slotted Hole Measure: Wi

Andritz Moduscreen F50 Rotor Type: LR Basket Type: Slotted Hole Measure: Wi

126252
Andritz Moduscreen F50 Rotor Type: LR Basket Type: Slotted Hole Measure: Width: 0.009 Height: 38" Mod #: F-50 VHS Int: 43.500 Ext: 50.250" Height: 40" Inlet: 12" Outlet: 12"Reject: 1 X 8" and 1 X 6" Motor - General Eletric AC HP: 350 RPM: 1190 Frame: Volts: 2400 Enclosure: Tefc Mounting Position: Vertical Application: Belt Made In Finland Maunfactured In 2006
Picture of Ultrasorter Size 30 Tailings Screen by Black Clawson . New 2000. 316L Sta

Ultrasorter Size 30 Tailings Screen by Black Clawson . New 2000. 316L Sta

124208
Ultrasorter Size 30 Tailings Screen by Black Clawson . New 2000. 316L Stainless Steel Construction. Belt driven 50 HP 1200 RPM motor. 2 ½% Maximum feed consistency. Approximately 30 BDTPD but capacity will vary according to the specific application. 6" (152mm) Inlet plate flange and 8" (203mm) accepts plate flange. Equipped with a screenplate with conically drilled holes. Can be used in a paper machine approach system secondary fiber screening or in a pulp mill screening system.
Picture of Falk Model No. 2100Y1-LD; Gear Drive 6 .786/1 Ratio; 1200 Input RPM 176.8 Out

Falk Model No. 2100Y1-LD; Gear Drive 6 .786/1 Ratio; 1200 Input RPM 176.8 Out

126706
Falk Model No. 2100Y1-LD; Gear Drive 6 .786/1 Ratio; 1200 Input RPM 176.8 Output RPM 153; Service Rating HP 2.2; Service Factor 6.8 US Gallons; w/ Base; L-100 W-70 H-50
Picture of Falk Enclosed Gear Drive Model No. 1135YF1; Ratio 4.708/1; 700 HP Service R

Falk Enclosed Gear Drive Model No. 1135YF1; Ratio 4.708/1; 700 HP Service R

126749
Falk Enclosed Gear Drive Model No. 1135YF1; Ratio 4.708/1; 700 HP Service Rating; 1200 RPM Input; 254.9 RPM Output Unused Storeroom Spare
Picture of 45-1B Sprout Waldron Disk Refiner Completely Rebuilt Immediately Available.

45-1B Sprout Waldron Disk Refiner Completely Rebuilt Immediately Available.

126191
45-1B Sprout Waldron Disk Refiner Completely Rebuilt Immediately Available. Operates at 2500 HP and 4000 Volt.
Picture of Beloit M48 Horizontal Pressure Screen Stainless Steel Casing Stainless Stee

Beloit M48 Horizontal Pressure Screen Stainless Steel Casing Stainless Stee

126732
Beloit M48 Horizontal Pressure Screen Stainless Steel Casing Stainless Steel Rotor Belt Driven
Picture of Andritz Model TF 34 Double Disc Refiner 34" Rotor Stainless steel Casing Le

Andritz Model TF 34 Double Disc Refiner 34" Rotor Stainless steel Casing Le

126675
Andritz Model TF 34 Double Disc Refiner 34" Rotor Stainless steel Casing Less Door
Picture of Black Clawson Hydrapurge II Size 2

Black Clawson Hydrapurge II Size 2

126246
Black Clawson Hydrapurge II Size 2
Picture of 20' Diameter Black Clawson Pulper - Black Clawson; Capacity: 425 TPD at 3%;

20' Diameter Black Clawson Pulper - Black Clawson; Capacity: 425 TPD at 3%;

126812
20' Diameter Black Clawson Pulper - Black Clawson; Capacity: 425 TPD at 3%; Hymac Turboflex Retrofit; Low Consistency Type: Continuous; Construction Material: Stainless Steel Interior and Exterior; One (1) Pulper Bottom Accept Chamber; One (1) Pulper Tub In Three (3) Sides Upright; One (1) Vokes Rotor 87-87.5" 8-Vanes S/S; One (1) Plug Made Of Carbon Steel; Four (4) Pulper Legs; One (1) Wear Plate; One (1) Extraction Plate. Spares Parts Available Separately: Vokes Rotor (2) Extraction Plates 3/8' and 1/2" Holes Gearbox Rotor Hub and Wear Plate.
Picture of GL&V 350v Pulper Drives With Stainless Steel Extraction Plate With Stainles

GL&V 350v Pulper Drives With Stainless Steel Extraction Plate With Stainles

126682
GL&V 350v Pulper Drives With Stainless Steel Extraction Plate With Stainless Steel 6-Vane Rotor 44" Diameter Rotor Casting # D54 307003 48" Diameter Extraction Plate 1" Diameter Holes With Extraction Chamber
Picture of Voith Model No. GV 15 Pulper Gear Drive Ratio 5.86/1

Voith Model No. GV 15 Pulper Gear Drive Ratio 5.86/1

126680
Voith Model No. GV 15 Pulper Gear Drive Ratio 5.86/1
Picture of Voith pulper drive. Ratio 3.88; Bull gear 97 teeth; Pinion gear 25 teeth; m

Voith pulper drive. Ratio 3.88; Bull gear 97 teeth; Pinion gear 25 teeth; m

126022
Voith pulper drive. Ratio 3.88; Bull gear 97 teeth; Pinion gear 25 teeth; model GV15.
Picture of Reject Sorter RS-2B Rotor Shafts Made of Mechanical Tubes Mtl: 4140 Blades

Reject Sorter RS-2B Rotor Shafts Made of Mechanical Tubes Mtl: 4140 Blades

126245
Reject Sorter RS-2B Rotor Shafts Made of Mechanical Tubes Mtl: 4140 Blades and Flight Made in S/S 304.
Picture of Andritz Moduscreen Model F50 Rotor Type: LR Basket Type: Slotted Size: Widt

Andritz Moduscreen Model F50 Rotor Type: LR Basket Type: Slotted Size: Widt

126251
Andritz Moduscreen Model F50 Rotor Type: LR Basket Type: Slotted Size: Width: 0.007" Height: 38" Serial#: 1912 Interior Diameter: 43.500" Ext: 50.250" Height: 40.500" Inlet: 12" Outlet: 12" Reject: 1 X 8" and 1 X 6" Motor - General Electric AC HP: 350 RPM: 1190 Frame: 5011I6 Volts: 2400 Enclosure: TEFC Mounting Position Vertical Application: Belt Drive Made In Finland Manufactured 2001.
Picture of Metso Optifiner Conica refiner; Size DF-1; Mfg 2006; Model No. Optifiner DF

Metso Optifiner Conica refiner; Size DF-1; Mfg 2006; Model No. Optifiner DF

126687
Metso Optifiner Conica refiner; Size DF-1; Mfg 2006; Model No. Optifiner DF-1; L-60 W-36 H-45; 2774 Lbs
Picture of 17.5" Diameter Black Clawson High Density Cleaners

17.5" Diameter Black Clawson High Density Cleaners

126247
17.5" Diameter Black Clawson High Density Cleaners
Picture of Bird CN70 Headbox Pressure Screen 225 RPM. Comes with 200 HP Motor Rotatio

Bird CN70 Headbox Pressure Screen 225 RPM. Comes with 200 HP Motor Rotatio

120182
Bird CN70 Headbox Pressure Screen 225 RPM. Comes with 200 HP Motor Rotation CCW 60 PSI. Basket with .018" Slots included.

Categories of Used Stock Preparation Equipment and Machinery We Offer

Our inventory covers all key components for stock prep in the paper industry, allowing you to source everything from complete machines to critical replacement parts. Products that we offer under this category include:

Pulpers

These machines break down raw wood fibers or recycled paper into a pulp slurry, preparing it for further processing. High-quality used pulpers ensure smooth fiber separation and reduce contaminants.

Pulper Drives and Rotors

The pulper mechanical drive and rotor are essential for maximizing uptime and performance. Knowledge of high-quality surplus spare drives, rotors, or extraction chambers can be crucial to your company’s success.

Detrashers

Machines designed to remove unwanted contaminants, such as dirt, sand, and other heavy inorganic materials, from the pulp slurry.

Reject Sorters

Separate and remove non-fiber materials. Reject sorters help improve pulp quality by eliminating debris, plastics, and other contaminants.

Disk Refiners

These are critical in fiber treatment, refining pulp fibers to improve bonding strength and paper quality.

Defibrators

Critical for virgin fiber to mechanically separate and break down wood chips into individual fibers, producing uniform pulp for papermaking.

Deflakers

Further refining to break down clumped fibers or flakes, ensuring uniform slurry consistency for smooth paper formation.

Low Density Cleaners

Used to separate lightweight contaminants such as bark, plastics, and dirt from the pulp, enhancing purity.

High Density Cleaners

These machines remove heavy contaminants like sand and metal particles, protecting downstream equipment.

Pressure Screens

Pressure screens filter oversized particles and knots from the pulp slurry, preventing clogging and maintaining product quality.

Benefits of Buying Used Stock Preparation Equipment for Paper Manufacturing

  • Immediate Availability: Unlike new equipment with long lead times, used machines are often ready for delivery, minimizing production interruptions and expenses.
  • Match to Existing Equipment: Used machines match the existing equipment footprint and capabilities, resulting in significant cost savings.
  • Proven Durability: Many used machines have extensive operational histories and offer reliability comparable to new units.
  • Significant Cost Savings: Purchasing used equipment reduces upfront capital expenditures, allowing mills to invest in other critical areas.
  • Sustainability and Resource Efficiency: Extend equipment lifecycles and reduce waste, supporting environmental sustainability.
  • Flexible Scaling: Used equipment allows mills to expand or modify production capacity more flexibly and economically.

Application Areas of Stock Preparation Machines in the Paper Industry

  • Graphic and Printing Papers
  • Tissue and Towel Manufacturing
  • Specialty and Technical Papers
  • Packaging Papers
  • Recycled Fiber Processing

How to Select the Right Used Stock Preparation Equipment

  • Understand Your Production Requirements: Assess your mill’s daily output, fiber types, and product specifications.
  • Evaluate Equipment Condition: Request detailed inspection reports and maintenance histories.
  • Compatibility and Integration: Confirm that the machine fits within your existing process setup and infrastructure.
  • Compliance and Standards: Ensure the equipment meets relevant environmental, safety, and operational regulations.

Troubleshooting Tips for Used Stock Preparation Equipment

  • Perform Regular Visual Inspections: Check for signs of wear, corrosion, or damage.
  • Monitor Pulp Quality Continuously: Ensure fiber consistency, length, and cleanliness.
  • Listen for Abnormal Noises and Vibrations: Detect bearing failures or misalignment early.
  • Maintain Cleanliness of Screens and Sorters: Regularly clean pressure screens and sorters to prevent clogging.
  • Check Hydraulic and Lubrication Systems: Ensure lubrication is proper to prevent premature wear.
  • Implement Scheduled Preventive Maintenance: Follow manufacturer guidelines to reduce unplanned downtime.

Why Choose Industrial Exchange to Buy Stock Preparation Equipment

  • Over 20 years of experience helping paper mills worldwide find the right used equipment.
  • Global exposure through partnerships with top affiliate platforms.
  • Comprehensive consignment and valuation services.
  • Personalized support from experienced brokers who understand the paper industry.
  • Fast and efficient handling of listings, inquiries, and transactions.

Frequently Asked Questions (FAQs)

  • How can I verify the condition of used stock preparation machines?
    Brokers provide maintenance records and inspection reports to help buyers make informed decisions.
  • Is shipping available for used stock preparation equipment?
    Yes, we offer global logistics support to ensure safe and timely delivery.
  • Can I list used stock preparation equipment for sale?
    Absolutely, Industrial Exchange offers consignment services to maximize exposure to buyers.
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  • sales@industrialexchange.com
  • (804)608-0141
  • (804)608-0141
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