Wear Parts

Refining Plates & Filling

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Parason VGD SAS Disk & Tackles

VGD:-Variable Groove Design
SAS:- Small Angle Sector

Refining audit focus would be on

  • Existing Refining System Study and its audit in detail
  • Evaluate the best suitable design and suitable alloy as per application
  • On-site field service
  • User department  and maintenance personal’s training and awareness
  • Classroom training focusing on technical, operational, and maintenance troubling shooting and latest advances in refining technologies made available at ease
  • Organize one-to-one meetings of experts to discuss and arrest problems with a clear understanding and action plan
  • Conduct a survey on the health of refiners and suggest some replacement parts change over from time to time to increase the efficiency and durability.

Technical Service Support

As believed and understood by every papermaker that refining is the heart for good paper making. PARASON’s focus is always on the optimization of available refining resources.  We seek, collect, and process data and bar design implications resulting in the implementation of long-term improvements in the refining area.

Optimized Solution….Through Refining Audit

Reduce Refining Energy Consumption with Low Effort Solutions

Improving refining energy efficiency should be a priority in every mill. It’s a win from every angle. With energy efficiency comes lower energy consumption, lower operating cost, and increased operational flexibility.

Parason Refiner Fillings

                                                                                                                                          Refiner Fillings
  • Design to suit pulp & paper industry needs (pulping / refining)
  • Available from 12′ to 64′ size and 25 HP to 8000 HP power loading
  • Ensures right alloy (stainless steel alloys)
  • Excellently cast, machined, and finished disc
  • Power-saving from  6kw – 22 kW/hrs
  • Enhanced plate life
  • Uniform process results
  • Precision CNC enabled disc profile with sophisticated software
stator and rotor of refiner plate

schemantic drawing of bar wear - refiner plate

Scissor Action

Refiner plates work on the principle of scissors. The multiple resolution and number of bar crossings create millions of scissors edges. Refining takes place at the bar edges, hence it is essential to have a right angle bar edge during refining.

It makes a lot of sense that a refiner disc should have uniform wear properties. Normally the variation in the wear of the refiner plates may be wavy, serrated, or flat type.

The wavy & serrated wear causes maximum fiber damage and multiple disadvantages of high power consumption, increased cost per tonne, load variations, etc. PARASON has innovated the concept of `ERP’ that is Edge Retention Property. During strenuous refining conditions, the ‘ERP’ plate has flat wear.

Casting is done by using the latest technology to provide the best condition for the alloys in temperature, time, melting technique to determine the best suitable alloy. Due consideration to properties of erosion, corrosion, wear resistance of refiner plates is taken care of.

Improved Energy Efficiency

PARASON DISC with `ERP’ has shown improvement in the energy consumption with power-saving from 6 KW / hr. to 22 KW / hr in various applications grossly. The power saved annually adds to the profitability of the mills.

Parason ERP Refiner Disc Change

Parason Segmental Refiner Disc 34“, 40“, 42“ & 48“DDR

Overhung plate designs with higher outer diameter, increase the capacity of the refiner & cutting edge length of the plate. Resulting in increased plate life and improved pulp quality with enhanced capacity.

Metallurgy of Refiner disc

There are three basic metallurgical properties required in any Refiner Discs

  • Corrosion resistance
  • Wear resistance
  • Breakage resistance

There must be a correct balance of these three properties. It is necessary to improve the toughness without sacrificing the wear resistance which is a great challenge. Parason has developed a wide range of metallurgy to suit the refining of various applications.

Newly proposed bar designs go through intensive R & D focused on field requirements like throughput, plate life & energy savings with a commitment to customer satisfaction..

Welded Plate Manufacturing Methods

Parason refining solutions provide uniform and efficient fiber development with ultra low intensity refiner plates

TIG Welding Refiner Plate

Conventional TIG welding process

Feature shortfall

  • S.S. base is used
  • Welding in grooves
  • Less throughput
  • Visible joints
  • Less mechanical strength
  • Higher energy consumption
  • Less life

Diffusion bonding process

Feature shortfall

  • Weaker mechanical strength
  • Visible welding from top and bottom
  • Fiber hang-ups
  • Can damage refiner in case of accidents
  • Design limitations

Parason Laser Technology

Feature shortfall

  • Strongest mechanical strength
  • Application-based MOC
  • Zero draft Angle of the bar
  • Narrow bar width 0.8, 1.2, 1.6, 2.0, 5, 2.8, 4, 5mm
  • Full SS-304 base, with or without dams
  • Invisible joints
  • Clean grooves, Smooth surface
  • Higher throughput
  • Uniform pressure
  • No fiber hang-up
  • Low Power consumption

Parason AWT for the leading edge of ribs

Now Parason has developed AWT treatment for Leading Edge Retention Property of Ribs for Welded Refiner Plates

Diffusion bonding process PARASON AWT (Anti Wear Treatment)

Microscopic View(AWT)

In this Leica Image analyzer, all qualitative metallurgical parameters are converted into quantitative metallurgy.

PARASON AWT (Anti Wear Treatment)

Parason… A Step Ahead In Cast & Milled Fillings

PARASON CTT (Complete Transformation Treatment)

The wear resistance is improved by the special treatment to transform all metastable microscopic phases into stable microscopic phases.

The wear resistance of the disc is improved without sacrificing the breakage resistance. This treatment is applicable for the Cast as well as Milled refiner plates & tackles of special metallurgy.

Parason Variable Rib Design Plates (VRD)

Parason Variable RIB Design Plate
                                                                                                                           Variable Rib Design Plates

PARASON Variable Rib Design refiner plates are manufactured using special casting & CNC technology to attain the maximum uniformity in the refining zone by providing uniform hardness throughout the plates

PARASON Variable Rib Design refiner plates are manufactured with special cast technology to provide uniform hardness, throughout and the plates wear uniformly. Therefore, the plates wear uniformly over time.

  • Suitable for mixed furnish Refining
  • Normally long fibers & short fibers need to refine separately with different bar patterns as per required SEL & CEL
  • The VRD design is made to deal with mixed furnish
  • The peripheral velocity for the long fiber zone is a little lower than the short fiber zone which is need for the respective furnish
  • The retention time for long fiber is higher than for short fiber
  • The rib height for the long fiber zone is higher & smaller for the short fiber zone to give desired  refining effect
  • This design ensures the minimum shortening or damage to the fiber which gives better strength to paper with a higher breaking length
  • There is a base taper in the disc for better throughput & optimization of hydraulic capacity of the disc
  • SAS design offers close control over the cutting angle of the refiner disc

Special Features:

  • Inlet Coarse Bar Pattern
  • Outlet Fine Bar Pattern
  • Base Taper
  • No Breaker bar
  • SAS Design
  • No Dam
  • Inclined Parting
  • Line Between 2 Zones

Advantages

  • High Fibrillation
  • Power Saving /T/OSR
  • High Throughput
  • No Collar Formation
  • Less Fiber Cutting
  • No Plate Clashing

Parason Finedge Welded Bar Refiner Plates

PARASON Finedge Welded Bar refiner plates are manufactured using Special Casting & Robot Welding CNC technology to provide maximum uniformity in the refining zone. PARASON Finedge Welded Refiner Plates are Welded with special welding technology. The plates will wear uniformly over time with zero draft angle on the bar. With higher bar height and minimum bar width, the hydraulic uniformity is maintained for a longer time.

PARASON precision special cast, laser & welding manufacturing process minimizes groove width variations, which allows the finer bar to optimize low-intensity applications. Plate life is maximized due to the high bar height that is able to maintain with this technology.

                                                                                                                              Laser Machine Center

Parason Offers

Parason manufactures the Welded Refiner Plates, Tackles & Tri-Cones with an adequate height of the rib to offer more disc life & throughput.

                                                                                                                                    More bar height

Customer Requirements

  • Strength development of fiber
  • Optimization of product properties
  • Reduction in raw material cost
  • Reduction in energy consumption

Special Metallurgy

  • SS-304 base
  • SS-301 ribs
  • SS-17-4 precipitated hardened ribs
  • Specialized AWT treatment

Benefits

  • Low Specific Edge Load (SEL)
  • Good fibrillation – consistent fiber treatment
  • Higher throughput
  • Suitable for hardwood, softwood & recycled fiber
  • Low power consumption

Special Features

  • Narrow bar width from 0.8, 1.2, 1.6, 2.0, 2.5, 2.8, 4, 5mm
  • High Cutting Edge Length (CEL)
  • Zero draft angle on the bar
  • More bar height – more life
  • Special metallurgy

Parason Finedge Milled – Refiner Plates

Applications & Salient Features

PARASON Finedge Milled Bar refiner plates are manufactured using CNC technology to provide maximum uniformity in the refining zone.

PARASON milled bars are cast in their own foundry as a solid piece to provide uniform hardness throughout. The plates will wear uniformly over time. The zero draft angle on the bars helps in maintaining longer hydraulics.

The PARASON precision CNC Milling manufacturing process provides accurate groove width, which allows the finer bar to optimize low-intensity applications. Plate life is also maximized by re-milling which allows 2-3 life cycles.

Applications & Salient Features

  • Narrow bar width
  • Bar width range up-wards from 1.6mm, 2.0mm, 2.25mm, 2.5mm
  • High Cutting Edge Length (CEL)
  • Zero draft angle on the bar
  • Long life (Re-milling possible)
  • Special metallurgy (17-4 PH)

Benefits

  • Low Specific Edge Load (SEL)
  • Good fibrillation – consistent fiber treatment
  • Constant throughput
  • Suitable for Hardwood, TMP, Non-wood fibers (Cotton) & Recycle fiber

Parason Finedge Welded – Refiner Plates

Applications & Salient Features

PARASON Finedge Welded Bar refiner plates are manufactured using Special CNC technology with Robotic Welding, to provide the maximum uniformity in the refining zone. PARASON Finedge Welded Refiner Plates are cast with special metallurgy suitable for special welding technology with higher bar height and lower bar width.

The PARASON precision Special Cast, Laser & welding, manufacturing process minimizes groove width variations, which allows the finer bar to optimize low-intensity applications. Plate life is maximized due to higher bar height.

Applications & Salient Features

  • Narrow bar width range 1.2mm, 1.6mm, 2.0mm, 2.5mm, 2.8mm
  • High Cutting Edge Length (CEL)
  • Zero draft angle on the bar
  • More bar height – More life
  • Special metallurgy

Benefits

  • Low Specific Edge Load (SEL)
  • Good fibrillation – consistent fiber treatment
  • Constant throughput
  • Suitable for hardwood & recycled fiber

Parason Finedge Inlet Curved Bar – Refiner Plates

Applications & Salient Features

PARASON Finedge Inlet Curved Bar refiner plates are manufactured using Special Casting & CNC technology to provide maximum uniformity in the refining zone.

PARASON Finedge Curved Bar refiner plates are specially cast in our own foundry to provide uniform hardness throughout. The plates will wear uniformly over time have a longer bar length. The flow of pulp follows the grooves between the results of the bar in longer residence time. The result of Finedge Curved bars helps in more gentle refining action which continues over a longer time. Curving the refiner bars at the inlet enables them to function better as a pump. The half dams between sectors, further improve the pulp residence time resulting in improved refining.

The PARASON precision special casting & CNC manufacturing process provides accurate groove width, which allows the finer bar to optimize low-intensity applications.

Special Features

  • Longer pulp residence time
  • High Cutting Edge Length (CEL)
  • Finedge Curved bars function better as a Pump
  • Suitable for hardwood & recycled fiber
  • Special metallurgy

Benefits

  • Finedge Curved bars-more gentle refining action
  • Low Specific Edge Load (SEL)
  • Good fibrillation – consistent fiber treatment
  • More throughput
  • Suitable for hardwood & recycled fiber

Parason Conical Refiner Fillings

Shallow Angle Cone-Flow Fillings (JC-0 Series)

PARASON Conical Refiner Fillings offer exceptional high performance level of fibre processing

PARASON manufactures conical refiner fillings are manufactured with various designs & sizes to suit the industry needs.  PARASON conical fillings offer flexibility of various designs to optimize the process. Made of high strength, tough and corrosion resistant Stainless Steel Alloy.

Uniform wear ensures longer life.Precision engineering to ensure consistent quality and superior performance. PARASON’S innovation of ERP™ that is edge retention property makes the application unique and offers energy saver design.

PARASON Offers cast CONICAL filling for all models of JC-0 refiners. Large number of patterns with thick to thin bars suitable for different refining applications.

The fillings are with PARASON’S innovation ERP™ property which ensures efficient refining life with lower energy consumption. PARASON can fulfill the demand of the industry irrespective of size and model with custom designs.

Low Angle Monoblock Fillings

PARASON cast and duly machined fillings are available for all models of conical refiners suitable for Jordan 1R, 2R, 3R, Jones, fiber master, etc.

These single-piece cast fillings with precision grinding of sharp edges ensure minimum wear to optimize life and performance. Fillings are built with special treatment for long-lasting services.

High Angle Monoblock Fillings

PARASON manufactures Claflin fillings for every model like 101, 202, 303, F9 refiners. The fillings are cast with stainless steel offers superior performance in the development of fiber. The long life of the fillings ensures a better economy.

Metallurgical quality control is precisely maintained at every step from raw material heat treatment to final testing for desired hardness and wear resistance that virtually eliminates edge rounding. Wear resistance and toughness results in long productive life.

Benefits

  • Uniform fiber treatment
  • Long periods of economic refinings
  • Units of maximum structural strength for desired stock treatment
  • Fast, dependable deliveries
  • High-grade steels – heat treated with edge retention property ‘ERP’

Parason Tricone Fillings

Shallow Angle Cone-Flow Fillings (Triconic Series)

PARASON cast and fabricated and duly machined fillings are available for almost all models of RTC 1000, RTC 2000, RTC 3000, RTC 4000 suitable for different grades of paper. We supply fillings both in the cast as well as fabricated type.

Various standard patterns are available for HW and SW refining, for broke refining and for refining of mechanical pulps, and various specific fiber types. Fine Edge Refiner Plates are suitable in the applications for improving capacities in both short fiber and long fiber refining.

Parason Tricone Fillings

PARASON DISPERSER DISC WITH QST (Quartz Surface Treatment)

Parason Disperser Disc
Disperser Disc for paper mill
Parason manufactures the disperser discs in various designs and metallurgy

Disperser discs often face typical initial setting troubles like:-

  • Excessive Vibration
  • Higher Noise level
  • Load hunting
  • Disturbed performance

Parason HC Defibrator Fillings

PARASON makes refiner plates to suit the fiberboard industry such as

  • Medium Density Fiberboard(MDF)
  • Particleboard, Hard Board
  • Insulation board, Siding

PARASON technological expertise pattern making of Dams, sub-surface dam, root taper, bar design thickness by CNC machines ensures optimum performance. These filling are cast in stainless steel alloy and heat treatment, ground finished, dynamically balanced, and made ready for as per required applications.

PARASON ensures optimum results by

  • Selection of proper design
  • Selection of right alloy
  • Excellent casting & heat treatment
  • Ground finished and dynamically balanced

Technical experts apply various criteria apply for selection such as

  • Impact strength
  • Wearing resistance
  • Corrosion resistance
  • Cavitations resistance
  • Abrasion resistance
Maize Grinding Disc

Maize Grinding Disc

Parason is also serving allied industries like Starch, Gum, and Agricultural Refining

Parason manufactures the Maize Grinding Discs in various designs and metallurgy. Complete range of Maize Grinding Discs from 26″ – 52″ is available.


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