Stock Preparation/Refining
Refining Solutions
Disc refiners, conical refiners, and double-disc refiners for precision fiber development. Our refining systems deliver optimal freeness control, uniform fibrillation, and energy-efficient operation for every paper grade.
Explore Our Refining Solutions
Twin-disc, tri-disc, and conical refiners with advanced rotor designs — engineered for consistent fiber development and long filling life.
Why Choose Parason for Refining?
With over 50 years of engineering excellence, Parason delivers refining solutions trusted by 500+ paper mills across 75+ countries.
500+
Mills Served
Worldwide installations
75+
Countries
Global presence
50+
Years Experience
Engineering excellence
24/7
Support
Service & spare parts
Frequently Asked Questions About Refining Equipment
What is the purpose of refining in papermaking?+
Refining develops fiber properties — it fibrillates the outer cell wall to increase fiber bonding area, improving paper strength (tensile, burst, tear). Refining also controls freeness (drainage rate) which affects sheet formation on the paper machine.
What is the difference between a disc refiner and a conical refiner?+
A disc refiner like the Tri-Disc Refiner uses flat rotating discs for high-intensity refining. A Conical Refiner uses a cone-shaped rotor for gentler, low-intensity treatment. The Tri-Disc Refiner offers three refining zones in one unit.
What is the difference between a deflaker and a refiner?+
A refiner develops fiber bonding through prolonged fibrillation. A deflaker applies short, high-intensity impact to break apart fiber bundles without significant fibrillation. Many mills use both in their stock preparation line.
How to select refiner plates for different paper grades?+
Selection depends on fiber type, paper grade, and target freeness. Narrow-bar plates provide more cuts for fine papers. Wide-bar plates give gentle treatment for long-fiber grades. Parason manufactures refiner plates in-house for all its refiner models.
What is the role of the Magstruct magnetic separator in refining?+
The Parason Magstruct (MT) is installed inline before the refiner to remove metallic contaminants. It uses permanent magnets with SS-304 construction and zero energy consumption — protecting refiner fillings and extending their service life.
What is the CylindReX Refiner and how is it different?+
The CylindReX Refiner features tangential inlet and outlet design that optimizes stock flow. This delivers uniform shear distribution, consistent fiber treatment, and reduced energy consumption. It includes a built-in magnetic trap.
What is the Tri-Disc Refiner's advantage over conventional disc refiners?+
The Tri-Disc Refiner provides three refining surfaces in a single unit. This delivers more refining area per footprint, a lighter rotor, and lower specific energy consumption compared to conventional double disc refiners.