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Disperser and deflaker discs with QST (Quartz Surface Treatment) for vibration-free operation. Full circle and segmental designs for all disperser and deflaker models. Manufactured by Parason.
Parason manufactures precision-engineered discs for all types of dispersers and deflakers. Available in full circle and segmental designs, these discs are built for high-temperature dispersion and deflaking applications with superior wear resistance and consistent performance.
Each disc is manufactured using special alloy casting and CNC machining to ensure uniform tooth geometry, precise gap control, and extended service life across all operating conditions. Explore Parason's complete stock preparation equipment range for integrated mill solutions.
(Quartz Surface Treatment)


Disperser discs often face initial issues like vibration, noise, load hunting, and unstable performance during the break-in period.
To overcome such problems Parason has developed advanced Quartz Surface Treatment (QST).

Before QST

After QST
Parason manufactures precision-engineered discs for both dispersers and deflakers. While both use precision CNC machining and special alloy casting, the disc designs are optimized for fundamentally different applications.
| Factor | Disperser Discs | Deflaker Discs |
|---|---|---|
| Application | Contaminant dispersion (ink, stickies, wax) | Fibre bundle separation |
| Conditions | 100°C, 30% consistency | Ambient temperature |
| Gap Control | 0.01 mm accuracy | Standard precision |
| Disc Designs | Full circle & segmental | Hole, ring & conical step type |
| QST Available | Yes | — |
| Tooth Design | Optimized for controlled shearing | Optimized for high-speed separation |
Parason manufactures replacement discs for its complete range plus direct-fit replacements for all major OEM brands:
| Disc Type | Compatible Machines |
|---|---|
| Full Circle Disperser Disc | All Parason disperser models + OEM equivalents |
| Segmental Disperser Disc | All Parason disperser models + OEM equivalents |
| QST-Treated Disperser Disc | All disperser disc designs (full circle & segmental) |
| Hole Type Deflaker Disc | TDDH series hole deflakers + OEM equivalents |
| Ring Type Deflaker Disc | TDDR series ring deflakers + OEM equivalents |
| Conical Step Type Disc | CD series conical deflakers + OEM equivalents |
See also: Hole Type Deflaker (TDDH) | Ring Type Deflaker (TDDR) | Conical Deflaker (CD)
Key specifications at a glance
Available for all disperser and deflaker models. Full circle and segmental designs. QST (Quartz Surface Treatment) available for vibration-free start-up and stable operation.
Parason delivers disperser and deflaker discs as replacement parts for all major OEM brands — not just Parason machines.
Available disc configurations:
With manufacturing facilities in India and Brazil, Parason supplies discs across 75+ countries with local support from offices in India, Sao Paulo (Brazil), Arizona (USA), London (UK), and Sharjah (UAE). For refining applications, see Parason's ERP refiner fillings for energy-efficient fibre development.
Get a Disc RecommendationWith QST technology for vibration-free start-up and stable performance — contact us for the right disc configuration for your disperser or deflaker model.