Complete Fiber
Processing Solutions
Robust stock preparation systems engineered for superior yield and energy efficiency. From pulping to approach flow — delivering consistent quality for virgin and recycled fiber applications worldwide.
Advanced Stock Preparation Technology
Efficient fiber recovery and processing systems for recycled paper, virgin pulp, and specialty grades
With over 50 years of engineering expertise and 500+ successful installations across 75+ countries, Parason delivers outstanding fiber quality, maximum yield, and up to 30% energy savings. From high-consistency pulping to precision screening, advanced cleaning to optimal refining — our integrated systems ensure continuous operation with minimal maintenance.
Integrated Production Line Layout
From raw material intake to headbox — explore the complete fiber processing journey

Stock Preparation Equipment
Proven technologies for pulping, screening, cleaning, refining and more — engineered for reliability, efficiency, and superior performance across all paper grades
Bale Breaker
Pre-pulping equipment for smashing tight waste paper bales, separating hard impurities while extending downstream equipment life.
Key Features & Benefits
- Extends pulping equipment lifespan
- Increased production capacity
- Lower stocks preparation cost
- Longer life span of pulping equipment
Sharp Edge Drum Pulper - PDP
Gentle fiber treatment for recovered paper at 15-18% consistency, with effective contaminant separation and minimal fiber damage.
Key Features & Benefits
- 15-18% stock consistency operation
- Optimal 11 o'clock pulp drop position
- Gentle processing: Removal of easy-to-slush fine fraction as soon as possible
- Low net energy consumption between 15-25 kWh/t
Hicon™ Pulper - HM
High-consistency batch pulper with helical rotor design, operating at 15-16% consistency for efficient waste paper processing.
Key Features & Benefits
- 15-16% consistency operation
- Helical rotor design
- Efficient contaminant removal
- Maximum fiber yield
Dilution Pulper - DLP
Dual-function system for HICON® Pulper: separates plastics and contaminants while diluting stock for transfer.
Key Features & Benefits
- Dual contaminant & dilution function
- 6-8 mm drilled screen plate
- Uncut contaminants from HICON® Pulper removed with negligible fibre loss
- HICON® Pulper ready for next batch immediately after emptying - isolating valve isolates dilution pulper from main pulper
LC Offset Pulper - LCO
Double-cone bottom design with baffle system for intensive slushing, excellent pulp quality and trouble-free ragger operation.
Key Features & Benefits
- Double-cone bottom design
- Baffle-guided pulp flow
- Reliable ragger operation and low maintenance costs
- Improved removal of coarse rejects
Trash Pump
Heavy-duty pump for transferring contaminated stock with plastics, rags, and large debris from pulper to screening.
Key Features & Benefits
- Heavy-duty impeller design
- Large passage construction
- Handles heavy contaminants
- Reliable operation
Asymmetric Fiber Saver - AFS
Pulper de-trashing machine removing up to 70% of contaminants, suitable for both LC and HC batch pulpers.
Key Features & Benefits
- Removes up to 70% contaminants
- LC & HC pulper compatible
- Maximized fiber yield
- Reduced fiber loss
Inclined Trommel Screen - ITR
High-volume coarse debris removal with stainless steel construction, low power consumption and batch/continuous operation.
Key Features & Benefits
- Low power consumption
- Stainless steel wetted parts
- Efficient debris removal
- Continuous operation
Reject Compacter
Screw press system for dewatering and compacting pulper rejects, reducing disposal volume and costs.
Key Features & Benefits
- Screw press dewatering
- High dewatering efficiency
- Reduced disposal volume
- Lower disposal costs
Low Cons. D-Type Pulper
Low consistency pulper with proven D-type rotor design for effective pulping and integrated contaminant separation.
Key Features & Benefits
- Proven D-type rotor design
- Integrated debris removal
- Clean pulp output
- Minimal fiber loss
Trommel Screen
Rotating cylindrical screen for primary screening, removing coarse contaminants from D-Type Pulper discharge.
Key Features & Benefits
- Rotating drum design
- Variable perforation sizes
- Effective coarse screening
- Continuous operation
Fiber Guard
Centrifugal separator removing stones, glass, and metal to protect downstream refining and screening equipment.
Key Features & Benefits
- Centrifugal separation
- Stones/glass/metal removal
- Equipment protection
- Reduced wear
Ragger
Automatic rope-forming system for continuous removal of plastic films, textiles, and wire from pulping operation.
Key Features & Benefits
- Automatic rope formation
- Continuous removal
- Uninterrupted pulping
- Effective plastic removal
Rope Cutter
Automatic cutting system processing ragger ropes into manageable pieces for efficient handling and disposal.
Key Features & Benefits
- Automatic cutting action
- Adjustable cut length
- Easy handling
- Reduced labor
Grapple
Hydraulic grab system for periodic removal of heavy rejects accumulated at the pulper sump bottom.
Key Features & Benefits
- Hydraulic operation
- Heavy debris removal
- Complete debris removal
- Automated operation
Parason Under Pulper
Compact pulper fitting under paper machines for immediate processing of wet broke and dry trim fiber recovery.
Key Features & Benefits
- Under-machine installation
- Quick pulping action
- Space efficient
- Immediate fiber recovery
Cup Stock/Tetra Pak Pulper - CSTP
Continuous pulper for cup stock and Tetra Pak materials with excellent fiber treatment and PE/aluminum separation.
Key Features & Benefits
- Continuous operation
- Cup stock & Tetra Pak capable
- Uninterrupted production
- Consistent pulp quality
HTP Wet Strength Pulper - HTP
High-torque pulper for wet strength materials, separating fibers from plastic, film, and aluminum contaminants.
Key Features & Benefits
- High-torque performance
- Plastic/film/aluminum separation
- Easy installation and user-friendly operation
- Maximum fiber recovery
LC Virgin Pulper - LCV
Low consistency pulper for white grade mills, operating at 4-5% consistency with 12-16 mm screen plates.
Key Features & Benefits
- 4-5% consistency operation
- 12-16 mm screen plates
- Preserved fiber strength
- Superior pulp quality
HD Cleaner Ceramic/Steel - HDCC/HDCS
Centrifugal cleaning system for virgin pulp applications, removing sand, glass, and heavy debris to protect downstream refining equipment.
Key Features & Benefits
- Tangential inlet for optimal velocity
- Illuminated sight glass inspection
- Energy efficient
- Clean stock output
Medium Consistency Centricleaner - MCC
High-efficiency centricleaner operating at 2-3% consistency for pulp mill and approach flow applications with minimal fiber loss.
Key Features & Benefits
- Pulp mill & approach flow suitable
- Sand reject sampling provision
- High cleaning efficiency
- Low reject rates
Low Consistency Cleaner - PLC 450
4½ inch diameter cleaner for multi-stage fine cleaning of heavy contaminants at up to 2% consistency.
Key Features & Benefits
- Eco-Mizer minimal stage design
- Continuous reject discharge
- Clean accepts
- Flexible installation
Low Consistency Cleaner - PLC 110
Specialized 2½ inch cleaner for multi-stage fine cleaning, removing sand, glass, chips, and pins from pulp stock.
Key Features & Benefits
- Eco-Mizer minimal stage design
- Up to 2% consistency operation
- Clean accepts
- Flexible installation
Low Consistency Cleaner - LCC
Advanced cleaning system for improved optical cleanliness and superior paper quality in production applications.
Key Features & Benefits
- Enhanced optical cleanliness
- Compact footprint design
- Clean accepts
- Flexible installation
Sand Separator - PSS
Shaft-less screw separator for fast drainage of heavy rejects and large debris from junk trap sludge.
Key Features & Benefits
- Shaft-less screw mechanism
- High volume flow drainage
- Equipment protection
- Clean stock output
Coarse Screen - VSM
Parason Medium Consistency Screen with specially designed rotor is provided with both hole or slotted basket.
Key Features & Benefits
- High contaminant separation efficiency
- Optimized rotor for low fiber loss
- Reliable protection
- High throughput
Turbo Separator - TS
Parason Turbo Separator is a disc screen specially designed for coarse screening primarily for pulp strainer with a high trash and flake content like recycled paper.
Key Features & Benefits
- Superior deflaking capability
- Efficient light/heavy reject separation
- Superior fiber quality
- Low energy consumption
Horizontal Reject Sorter - HRS
The Parason Reject Sorter is an advanced last-stage screening solution designed to handle coarse screen rejects effectively. It is an essential component for pulp and paper mills aiming to minimize fiber loss while enhancing operational efficiency.
Key Features & Benefits
- High fiber recovery from rejects
- Horizontal screening configuration
- Maximum fiber recovery
- Reduced fiber loss
Combo Screen - PCS
The Parason Combo Screen is a high-performance light-reject coarse screening solution designed specifically for the pulp and paper industry. It delivers exceptional efficiency by deflaking pulp, cleaning impurities, and dewatering recovered fibers in a single operation.
Key Features & Benefits
- Dual-zone screening technology
- Combined coarse and fine screening
- Space efficient
- Lower installation cost
Fine Screen - VSL
The screens are suitable for stock preparation system and also for the approach flow system. The MULTIVANE AEROFOIL ROTOR design ensures the screen to operate free from pulsation. The unique contoured multi-foil rotor with optimum foil angle ensures better screening efficiency and lesser reject thickening.
Key Features & Benefits
- Precision slot screening
- High sticky removal efficiency
- Clean final stock
- Consistent quality
Reject Screen - Washing Cycle
Parason Reject Screen is an advanced screening solution designed to minimize fiber loss in the final stage of the screening process. Equipped with a PLC/Timer-controlled washing cycle, it ensures efficient fiber recovery while removing dimensionally unstable impurities.
Key Features & Benefits
- Integrated washing system
- Maximum fiber recovery
- Higher fiber yield
- Cleaner rejects
Fibermizer - FML
Parason Fibermizer is a highly efficient screening machine designed for reject handling in both coarse and fine screening processes. It effectively processes large quantities of rejects containing fiber flakes, ensuring maximum fiber recovery.
Key Features & Benefits
- Gentle fiber liberation
- Effective deflaking action
- Better fiber quality
- Improved drainage
Fractionator - VSF
Parason Fractionator separates the fibres mainly by fibre length and are fitted with slot type baskets. The specially designed rotor with fabricated and contoured foils generates lower positive pulses and higher negative pulses.
Key Features & Benefits
- Precise fiber fractionation
- Adjustable separation point
- Optimized fiber utilization
- Improved paper properties
Inflow Pressure Screen - VIS
Parason Inflow Pressure Screen offers high throughput with lower energy consumption. Few rejects and higher obtaining rate of long fibres with reduced installation power and higher production capacity.
Key Features & Benefits
- Inward flow design
- Low pulsation operation
- Space efficient
- Energy savings
Vibrating Screen - PSV
Parason Vibrating Screen Machine is engineered for efficient removal of unwanted rejects from pulp in paper mills.
Key Features & Benefits
- Screening of diverse sorts of rejects
- Open design for visual inspection
- Cleaner pulp output
- Reliable operation
Upflow Screen - VSAM/VSAL
Parason Medium Consistency Screen with specially designed rotor is provided with both hole or slotted basket.
Key Features & Benefits
- Efficient separation of contaminants
- Low power consumption
- Low energy consumption
- Higher purging effect
Shield Screen - PSS
Parason Shield Screen is an advanced approach flow screening solution designed to ensure a smooth and efficient screening process for reliable paper production.
Key Features & Benefits
- Enhanced runnability of the machine
- Pulsation-free screen for higher capacity
- Higher efficiency
- Lower maintenance
Reject Fan Press - PFP
Parason Fan Press is developed with pioneering technology to separate wastewater into its solid and liquid components.
Key Features & Benefits
- Efficient dewatering of fine and coarse rejects
- Dewatering fibrous effluent & sludge
- Compact design
- Excellent fiber recovery
Parason Disc Filter
Parason Disc Filter provides efficient stock thickening with minimal fiber loss.
Key Features & Benefits
- Multi-disc design
- High capacity
- Efficient thickening
- Low fiber loss
Double Disc Filter
Double Disc Filter delivers enhanced thickening capacity with dual filtration zones.
Key Features & Benefits
- Dual disc configuration
- High throughput
- Increased capacity
- Better consistency
Gravity Thickener
Gravity Thickener offers simple and reliable stock thickening solution.
Key Features & Benefits
- Simple design
- Low maintenance
- Low operating cost
- Easy operation
Folded Thickener
Folded Thickener maximizes filtration area in minimal floor space.
Key Features & Benefits
- Folded filter design
- Space saving
- Maximum capacity
- Minimal footprint
Decker Thickener
Decker Thickener provides reliable thickening with proven drum technology.
Key Features & Benefits
- Drum technology
- Robust construction
- Reliable operation
- Low maintenance
Dispersion System
Dispersion System breaks down ink particles and stickies for improved stock quality.
Key Features & Benefits
- High intensity action
- Adjustable gap settings
- Improved brightness
- Reduced stickies
Parason Dewatering Screw with Pneumatic Loading System
Parason Dewatering Screw has both the conical screw cone and pneumatically controlled counter pressure cone that ensure desired dewatering effect upto 10% consistency with flexibility of operation.
Key Features & Benefits
- Conical screw cone with pneumatic loading
- Pneumatically controlled counter pressure cone
- Desired dewatering effect with precision control
- Operational flexibility for varying stock conditions
The Parason's Innovative Booster Maxi Press®
Booster Maxi Press® is very sturdy and has unique features. The screw is made in single piece casting with hard facing edges of the flights. Pulp stock outlet consistency is upto 38% - 42% after Screw Press.
Key Features & Benefits
- Single piece casting screw design
- Hard facing edges on flight surfaces
- Superior pulp stock dryness levels
- Extended equipment service life
MAXI PRESS® and SUPER MAXI PRESS® Plug Screw
Maxi Press® and Super Maxi Press® is designed to avoid escaping of steam, thus reducing the steam consumption and improving the dispersing effect. The screw consists of an inlet chute tapered compression zone.
Key Features & Benefits
- Prevents steam escape during dispersion
- Inlet chute with tapered compression zone
- Significant steam savings
- Enhanced dispersion quality
Shredder
Thickened stock is shredded uniformly to increase the surface area of pulp stock. It helps steam to penetrate evenly into the pulp stock.
Key Features & Benefits
- Uniform shredding of thickened stock
- Increases pulp stock surface area
- Enhanced steam penetration efficiency
- Uniform stock preparation
Heater Mixer
Shredded stock is heated up to 90°C - 100°C in Heater Mixer with temperature control system. Steam nozzles are provided throughout the length of the Heater Mixer for uniform heating.
Key Features & Benefits
- Heats stock to 90°C - 100°C operating range
- Integrated temperature control system
- Optimal stock temperature for dispersion
- Consistent heating throughout
Infeeder
The Infeeder screw feeds the stock uniformly to the disperser.
Key Features & Benefits
- Uniform stock feeding to disperser
- Precision screw feeding mechanism
- Stable disperser operation
- Uniform material distribution
Disperser
Parason Hot Disperser is designed for dispersing of pulp stock at 30% consistency, at 100°C, and gap control upto 0.01 mm accuracy with electro hydraulic arrangement.
Key Features & Benefits
- Operates at 30% consistency and 100°C
- Gap control upto 0.01 mm accuracy
- Optimum fibre development
- Dispersion of contaminants in microns
Deinking Cell - Deinking
The Parason Deinking Cell consists of multiple cells in series with an elliptical cross-section. A baffle extends across the entire length, separating the suspension chamber.
Key Features & Benefits
- Enhances pulp brightness with less fiber loss
- Removes dirt, specks, and stickies effectively
- High brightness gain
- Clean fiber output
Parason Oxidative Bleach Tower - POBT
The Parason Oxidative Bleach Tower (POBT) is designed to hold high-consistency stock for an adequate retention time, ensuring effective bleaching.
Key Features & Benefits
- Low specific energy consumption
- Ensures proper retention time
- Improved brightness
- Chemical efficiency
Parason Twin Disc Refiner™
Twin Disc Refiner delivers precise fiber development with dual refining zones.
Key Features & Benefits
- Twin disc configuration
- Precise gap control
- Superior fiber development
- Energy efficiency
Conical Refiner
Conical Refiner provides gentle yet effective fiber treatment for various applications.
Key Features & Benefits
- Conical geometry
- Uniform refining
- Gentle fiber treatment
- Versatile operation
Parason CylindReX™ Refiner
It is built with Tangential Inlet and Tangential Outlet features and delivers consistent and energy-efficient fiber treatment across all fiber types.
Key Features & Benefits
- Better formation
- Optimum strength for given fiber
- Easy tackle replacement and maintenance
- Optimal fiber quality
Conical Deflaker - CD
The Parason Conical Deflaker is a highly efficient refining solution. Its unique three-step deflaking process ensures greater fiber retention time, leading to minimal fiber shortening and enhanced fibrillation.
Key Features & Benefits
- Three-step deflaking process
- Online gap adjustment mechanism
- Minimal fiber shortening
- Extended filling life
Hole Type Deflakers - TDDH
The Parason TriDisc Deflaker is a high-speed deflaking solution. Operating at speeds between 1500 to 3000 RPM, it efficiently breaks down fiber bundles and flakes into individual fibers using hydrodynamic shock waves.
Key Features & Benefits
- High-speed operation (1500-3000 RPM)
- Hydrodynamic shock wave action
- Effective flake reduction
- Consistent output
Ring Type Deflaker
Ring Type Deflaker delivers high-intensity deflaking with ring rotor design.
Key Features & Benefits
- Ring rotor technology
- High shear intensity
- Superior deflaking
- Energy efficient
Hydro Turbulence Agitator - HTA
Parason Agitators are designed for efficient and consistent agitation in chests, tanks, and storage towers, ensuring uniform pulp consistency up to 5%.
Key Features & Benefits
- Effective agitation with low power consumption
- Stainless steel wetted parts for durability
- Consistent stock quality
- Low energy consumption
Vertical Agitator - PVAT
Parason Vertical Agitators are essential for maintaining uniform mass concentration in pulp suspensions within chests.
Key Features & Benefits
- Ensures uniform pulp consistency with efficient mixing
- Top-mounted design for optimized agitation performance
- Complete tank mixing
- Ideal for industries like biogas production, mining, and metal processing
Hydraulic Headbox
Parason Hydraulic Headbox features an integrated Pulsation Dampening Tank and advanced Turbulence Generator for superior jet stability—delivering precise flow control, optimized fiber dispersion, and consistent basis weight profiles across the full machine width.
Key Features & Benefits
- Advanced CD dilution profiling system with edge feed control
- Superior fiber dispersion for improved pulp quality metrics
- Reduced energy consumption through optimized hydraulic design
- Rapid grade transitions with minimal off-spec production
Pressurized Headbox
Parason Pressurized Headbox delivers precision jet control for high-speed paper machines using advanced air cushion technology. Three-roll rectifier design ensures uniform fiber distribution with integrated turbulence generation for superior sheet formation.
Key Features & Benefits
- Air cushion pressure system for pulsation-free jet delivery
- Three-roll rectifier eliminates flow irregularities
- Streak-free sheet formation
- Uniform CD/MD profiles
Rotary Drum Screw - DS
Parason Rotary Drum Screw is designed for dewatering, separation of solids and thickening of wastewater sludge from primary and secondary clarifier.
Key Features & Benefits
- It reduces sludge volume and allows for water recovery
- It improves efficiency of downstream dewatering equipment
- High thickening efficiency
- Reduced water content
Flotation Cell - FC
Parason Flotation Cell is designed to reduce TSS/BOD/COD from the effluent water and makes it suitable to recycle to paper machine.
Key Features & Benefits
- Highly efficient for removing light solids like fibers, fillers and inks
- Effectively clarifies white water and effluent streams
- Clear effluent output
- Ink removal
Conventional Clarifier - PCR
Parason Clarifiers are designed as a continuous-flow solid separation process that operates based on gravity and utilizes gravity to separate suspended particles from a liquid.
Key Features & Benefits
- Full bridge type design with scrapper mechanism
- Motor driven center column drive
- Clear effluent
- Reliable operation
Spray Filter Fractioning Screen
Parason Spray Filter is also known as a fibre recovery unit. It is used for sludge and fibre fractioning.
Key Features & Benefits
- Mechanical filtration, washing, and spray for fiber recovery
- Effectively separates floating sludge and rejects fiber from water
- Maximum fiber recovery
- Water reuse
Pressure Sand Filter - PSF
Parason Pressure Sand Filter is designed to remove suspended particles, turbidity, and sediments from water.
Key Features & Benefits
- Pressure vessel design for high-efficiency filtration
- Multi-layer filter media with graded sizes
- Superior water clarity
- Low maintenance
Fifty Filter - FF
Parason Fifty Filter is a vacuum drum thickener designed for clarification, thickening and classification of pulp stock by removing clear filtrate from paper machine white water.
Key Features & Benefits
- Open surface drum filter with vacuum extraction
- Fine mesh or filter fabric (80-150 mesh) coverage
- High filtration efficiency
- Reduced water consumption
Water Softener
Parason Water Softener is designed to remove calcium and magnesium ions from hard water, converting it into soft water.
Key Features & Benefits
- Cation exchange resin technology for effective softening
- Ion exchange process removes calcium and magnesium
- Scale prevention
- Extended equipment life
Reject Fan Press - PFP
Parason Reject Fan Press is designed to dewater light-weight plastic rejects from paper and pulp recycling operations.
Key Features & Benefits
- Screw conveyor mechanism for effective dewatering
- Screen section retains solids while water drains
- Reduced disposal volume
- Lower disposal costs
Belt Filter Press - BFP
Parason Belt Filter Press is designed for sludge dewatering applications in wastewater treatment.
Key Features & Benefits
- Two moving belts squeeze water from sludge
- Series of rollers apply increasing pressure
- Reduced sludge volume
- Lower disposal costs
Sludge Screw Press - SSP
Parason Sludge Screw Press is designed for sludge dewatering application in wastewater treatment.
Key Features & Benefits
- Rotating screw pushes sludge through cylindrical screen
- Pressure builds up for effective water removal
- High cake dryness
- Low maintenance
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Featured Equipment
Precision-engineered equipment for stock preparation, paper machines, and process systems. Built for reliability, performance, and operational efficiency.

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Advanced cylindrical refiner for stock preparation with superior fiber development and efficient power consumption.
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High-consistency conical refiner designed for optimal fiber treatment and energy-efficient operation.
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Precision-engineered hydraulic headbox for uniform sheet formation and superior paper quality.
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Advanced film press technology for surface sizing and coating applications with consistent results.
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Efficient foam breaking solution for pulp and paper manufacturing process optimization.
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