Drick DRK28L-2 Standard Fiber Disintegrator (Vertical Type)
| Brand | Drick |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | DRK28L-2 |
| Power Rating | 400 W / 380 V AC |
| Container Capacity | 3.46 L |
| Slurry Volume | 2000 mL |
| Rotor Diameter | 90 mm |
| Blade Profile | Compliant with TAPPI/ISO R-geometry specification |
| Nominal Speed | 3000 rpm ±5 rpm |
| Total Rotations Setting Range | 0–50,000 rev (adjustable) |
| Dimensions (W×D×H) | 500 × 400 × 740 mm |
| Weight | 80 kg |
| Sample Load | 24 g oven-dry fiber at 1.2% consistency in 2000 mL water |
| Compliance Standards | JIS P 8220, TAPPI T 205, ISO 5263 |
Overview
The Drick DRK28L-2 Standard Fiber Disintegrator (Vertical Type) is a precision-engineered laboratory instrument designed to achieve standardized mechanical fibrillation of pulp suspensions in accordance with internationally recognized papermaking test protocols. Operating on the principle of controlled high-shear hydrodynamic dispersion, the device subjects fiber suspensions to reproducible turbulent flow conditions generated by a vertically mounted, geometrically specified impeller rotating within a transparent cylindrical vessel. This process ensures uniform separation of fiber bundles into individualized fibers—critical for preparing representative samples used in handsheet formation, freeness (Schopper-Riegler or Canadian Standard Freeness) determination, screening efficiency evaluation, and fiber morphology analysis. Its vertical architecture minimizes sedimentation bias during operation and facilitates real-time visual monitoring of slurry homogeneity and fiber dispersion dynamics.
Key Features
- Vertically oriented drive assembly with rigid shaft alignment, ensuring minimal runout and long-term rotational stability at 3000 rpm ±5 rpm
- Optically clear, impact-resistant polymer container (3.46 L total volume) enabling direct observation of fiber suspension behavior and vortex formation
- Impeller conforming precisely to the R-geometry profile defined in TAPPI T 205 and ISO 5263, with 90 mm diameter and calibrated blade curvature for consistent shear field generation
- Digital rotation counter with programmable total revolution setpoint (0–50,000 rev), supporting precise repeatability across inter-laboratory trials
- Industrial-grade 400 W three-phase motor (380 V AC) delivering sustained torque output under variable load conditions typical of pulp suspensions
- Ergonomic footprint (500 × 400 × 740 mm) and reinforced base structure (80 kg mass) minimizing operational vibration and acoustic emission
Sample Compatibility & Compliance
The DRK28L-2 is validated for use with all major pulp types—including bleached/unbleached hardwood and softwood kraft, mechanical, thermomechanical (TMP), chemithermomechanical (CTMP), and recycled fiber suspensions—at the standard test condition of 24 g oven-dry fiber suspended in 2000 mL water (1.2% consistency). It fully satisfies the mechanical design, dimensional, and operational requirements of JIS P 8220:2019, TAPPI T 205 sp-22, and ISO 5263-1:2021. The unit’s construction materials meet ISO 9001-certified manufacturing controls, and its performance traceability supports GLP-compliant documentation workflows required for accreditation under ISO/IEC 17025.
Software & Data Management
While the DRK28L-2 operates via dedicated hardware-based control (rotational speed regulation and revolution counting), its digital counter provides TTL-level pulse output compatible with external data acquisition systems (e.g., LabVIEW, MATLAB, or custom SCADA interfaces) for time-stamped logging of total revolutions, runtime, and sequence verification. Audit trails can be maintained manually or integrated into LIMS environments via RS-232 or optional USB-to-serial adapters. All operational parameters align with FDA 21 CFR Part 11 principles when paired with validated electronic record systems, supporting full traceability in regulated quality control laboratories.
Applications
- Preparation of standardized pulp slurries for handsheet making per ISO 5269-1 and TAPPI T 205
- Freeness testing (CSF/SR) sample conditioning in accordance with ISO 5267-1 and TAPPI T 227
- Feedstock homogenization prior to fiber length analysis (e.g., using FiberLab or MorFi analyzers)
- Screening trial feed preparation for evaluating reject ratios and throughput efficiency
- Research-scale simulation of refining intensity effects on fiber flexibility and bonding potential
- Method validation studies requiring strict adherence to JIS, TAPPI, or ISO reference disintegration protocols
FAQ
What standards does the DRK28L-2 comply with?
It is engineered and verified to meet JIS P 8220, TAPPI T 205, and ISO 5263-1 for fiber disintegration performance and mechanical configuration.
Can the rotation count be reset between tests?
Yes—the digital revolution counter features a manual reset function to ensure unambiguous tracking per test sequence.
Is the impeller geometry user-replaceable and certified?
The R-profile impeller is factory-calibrated and supplied with a conformity statement referencing TAPPI T 205 Annex A; replacement units are serialized and include calibration documentation.
Does the unit support variable speed operation?
No—it operates exclusively at the standardized 3000 rpm ±5 rpm as mandated by all referenced methods; speed deviation would invalidate compliance.
What maintenance intervals are recommended?
Bearing inspection and lubrication every 500 operating hours; impeller and seal integrity verification prior to each accreditation audit or quarterly—whichever occurs first.
