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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 Black Clawon 24 PS PH Pressure Screen Belt Drive 316 SS Body Qty (2)

Black Clawon 24 PS PH Pressure Screen Belt Drive 316 SS Body Qty (2)

120789
Black Clawon 24 PS PH Pressure Screen Belt Drive 316 SS Body Qty (2)
Picture of Voith Sulzer RS2 B Model: RS2 B Reject Sorter

Voith Sulzer RS2 B Model: RS2 B Reject Sorter

126242
Voith Sulzer RS2 B Model: RS2 B Reject Sorter
Picture of Diablofiner II; 1130 Sq.Ft.; Detrashing/Reject Sorter Max PSI 45; Year 2006

Diablofiner II; 1130 Sq.Ft.; Detrashing/Reject Sorter Max PSI 45; Year 2006

126726
Diablofiner II; 1130 Sq.Ft.; Detrashing/Reject Sorter Max PSI 45; Year 2006.
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 Class SP/Screens Fireprep SPM 800 SPM-067

Class SP/Screens Fireprep SPM 800 SPM-067

126701
Class SP/Screens Fireprep SPM 800 SPM-067
Picture of Beloit model MDS 24 horizontal pressure screen 316SS construction.

Beloit model MDS 24 horizontal pressure screen 316SS construction.

126015
Beloit model MDS 24 horizontal pressure screen 316SS construction.
Picture of Black Clawson High Density Cleaner Size 12 Stainless Steel Head Insert With

Black Clawson High Density Cleaner Size 12 Stainless Steel Head Insert With

126678
Black Clawson High Density Cleaner Size 12 Stainless Steel Head Insert With Reject Dump Assembly With Base
Picture of Bird Model 50 Pressure Screen Mfg. Bird Escher Wyss 316 SS Construction Be

Bird Model 50 Pressure Screen Mfg. Bird Escher Wyss 316 SS Construction Be

123855
Bird Model 50 Pressure Screen Mfg. Bird Escher Wyss 316 SS Construction Belt Drive. Screen Is Complete With Basket.
Picture of Lufkin Gear Box With Itt Standard Shell And Tube Heat Exchanger Model S2212

Lufkin Gear Box With Itt Standard Shell And Tube Heat Exchanger Model S2212

126747
Lufkin Gear Box With Itt Standard Shell And Tube Heat Exchanger Model S2212ch 3.576/1 Ratio Input Rpm 910 1.89 Service Factor 1500hp Service Rating Heat Exchanger P/N 5-160-05-036-004
Picture of Lufkin Gear Box Model Sfc175.8ch Input Rpm 1235 Outpur Rpm 315.05 A/O 21142

Lufkin Gear Box Model Sfc175.8ch Input Rpm 1235 Outpur Rpm 315.05 A/O 21142

126746
Lufkin Gear Box Model Sfc175.8ch Input Rpm 1235 Outpur Rpm 315.05 A/O 2114260 3.92/1 Ratio Service Rating 1640 Hp Service Factor 1.8 Rebuilt By Lufkin Industies Inc. 5/8/92 Lufkin Order No. 840949 Unused Storeroom Spare
Picture of Beloit Model No. Shark 3396 Pulper Drives W/Hub Cap; L-72 W-72 H-120; 6540

Beloit Model No. Shark 3396 Pulper Drives W/Hub Cap; L-72 W-72 H-120; 6540

126719
Beloit Model No. Shark 3396 Pulper Drives W/Hub Cap; L-72 W-72 H-120; 6540 Lbs
Picture of Andritz R20 EMA II 20" Disc Refiner

Andritz R20 EMA II 20" Disc Refiner

126750
Andritz R20 EMA II 20" Disc Refiner
Picture of Beloit Series 4000 DD 34 Inch Disc Refiner. Model Number 4334S.

Beloit Series 4000 DD 34 Inch Disc Refiner. Model Number 4334S.

123867
Beloit Series 4000 DD 34 Inch Disc Refiner. Model Number 4334S.
Picture of Sprout Waldron R20 EM Disc Refiner With Sev-Usocome A/C Motor

Sprout Waldron R20 EM Disc Refiner With Sev-Usocome A/C Motor

126751
Sprout Waldron R20 EM Disc Refiner With Sev-Usocome A/C Motor
Picture of 20" Diameter Black Clawson High Density Cleaner

20" Diameter Black Clawson High Density Cleaner

126250
20" Diameter Black Clawson High Density Cleaner
Picture of Beloit model MDS 24 horizontal pressure screen 316SS construction.

Beloit model MDS 24 horizontal pressure screen 316SS construction.

126014
Beloit model MDS 24 horizontal pressure screen 316SS construction.
Picture of 675 ADSTD Andritz Fibreflow 350 Drum Pulper 3.5 Meter Diameter Drum. Pulper

675 ADSTD Andritz Fibreflow 350 Drum Pulper 3.5 Meter Diameter Drum. Pulper

126198
675 ADSTD Andritz Fibreflow 350 Drum Pulper 3.5 Meter Diameter Drum. Pulper drum construction is 316 SS 81' Length x 11.5' Diameter. Complete pulper includes drive and lubrication system. It has a counter clockwise rotation looking at the discharge end. Installed new in 2001 it was only in use for about 4-5 Years. Previously was pulping ONP / OMG / Pre-consumer Waste. Capacity up to 675 ADTPD Input / 500 BDSTD Output depending on wastepaper grades. Equipment has been dismantled and professionally packaged. It is immediately available for shipment.
Picture of 16' Diameter Pulper Kvaerner Hymac Model: 16-3B-56; Capacity: 400 ADTPD; Ty

16' Diameter Pulper Kvaerner Hymac Model: 16-3B-56; Capacity: 400 ADTPD; Ty

126816
16' Diameter Pulper Kvaerner Hymac Model: 16-3B-56; Capacity: 400 ADTPD; Type: Batch Continuous at 6% Consistency. Dimensions: 16' Dia x 12' High; Extraction Plate (316 SS): 22.7% Open Area 5/8" Hole; 5-15 Minute Batch Time; Complete Drive Size 3B Bearing Housing with Hub Adaptor ; 75" Diameter Sheave 8V 10 Gr; 56" Rotor; Six (6) Baffles; Four (4) Legs. Motor Vertical Mount 400 HP 885 RPM 2300 Volts; Safety Guards Excluded Dismantled and Available for Immediate Shipment. Spare Available Separately: Turboflex Pulper Impeller; Pulper Shaft - Kvaerner Hymac Turboflex 3B Drive.
Picture of 12' Pulper; Mfg: Hydraulic Machinery; 144" Diameter X 96" Deep; Constructio

12' Pulper; Mfg: Hydraulic Machinery; 144" Diameter X 96" Deep; Constructio

126815
12' Pulper; Mfg: Hydraulic Machinery; 144" Diameter X 96" Deep; Construction: Stainless Steel Interior and Exterior; Gear Reducer Ratio: 4.0; Pulper is Disassembled in Three (3) Sections.
Picture of Black Clawson Ultra I Pressure Screen Stainless Steel .079 Holes Basket 4 F

Black Clawson Ultra I Pressure Screen Stainless Steel .079 Holes Basket 4 F

126700
Black Clawson Ultra I Pressure Screen Stainless Steel .079 Holes Basket 4 Foil Rotor On Base With Motor And Motor Mount

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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