HAIDA HD-P005 Schopper-Riegler Consistency Tester
| Brand | HAIDA INTERNATIONAL |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Model | HD-P005 Schopper-Riegler Consistency Tester |
| Measurement Range | 0–100°SR |
| Graduation | 1°SR |
| Test Water Temperature | 20 ± 0.5°C |
| Test Water Volume | 1000 mL |
| Drainage Time | 149 ± 1 s |
| Residual Water Volume | 7.5–8 mL |
| Plunger Rise Speed | 100 ± 10 mm/s |
| Operating Pressure (Pneumatic/Hydraulic) | ≥ 0.3 MPa |
| Dimensions | 460 × 250 mm |
| Compliance | ISO 5267-1, GB/T 3332 |
Overview
The HAIDA HD-P005 Schopper-Riegler Consistency Tester is a precision instrument engineered for the quantitative determination of pulp drainage resistance—commonly referred to as “beating degree” or “consistency”—in wood, chemical, mechanical, and recycled fiber suspensions. It operates strictly in accordance with the fundamental hydrodynamic principle defined in ISO 5267-1 and GB/T 3332: the Schopper-Riegler (SR) method measures the time required for a standardized volume of pulp slurry (1000 mL at 20 ± 0.5°C) to drain through a calibrated brass screen under controlled gravitational and pneumatic/hydraulic-assisted plunger displacement. The resulting SR degree (°SR) reflects the degree of fibrillation, fiber shortening, and swelling induced during mechanical refining—a critical parameter directly correlated with sheet formation, tensile strength, porosity, and formation uniformity in papermaking processes.
Key Features
- Pneumatic/hydraulic actuation system ensures consistent, repeatable plunger rise speed (100 ± 10 mm/s), minimizing operator-induced variability and enhancing inter-laboratory reproducibility.
- Spring-preloaded sealing mechanism integrates a high-elasticity silicone rubber gasket, achieving reliable, leak-free contact between the conical seal body and the bottom flange of the drainage cylinder—critical for maintaining hydraulic integrity during the 149 ± 1 s reference drainage interval.
- All structural support rods and load-bearing components are fabricated from corrosion-resistant stainless steel, ensuring dimensional stability and long-term mechanical integrity in humid laboratory environments.
- Integrated locking mechanism for the rotating sample tray employs a spring-loaded detent design, enabling rapid, tool-free positioning and secure fixation during sample loading and post-test cleanup.
- Modular accessory set includes two certified SR measuring beakers (ISO-compliant geometry and calibration traceability), one wet-weight frame, one 120-mesh copper screen (per ISO 5267-1 specification), one replacement silicone seal ring, and two precision-calibrated wrenches for routine maintenance.
Sample Compatibility & Compliance
The HD-P005 is validated for use with all standard pulp types—including bleached/unbleached kraft, sulfite, CTMP, BCTMP, and deinked pulp—at consistency levels ranging from 0.2% to 1.0% (w/w). It accommodates both laboratory-refined and pilot-scale samples without modification. All mechanical tolerances, dimensional specifications, and timing protocols conform rigorously to ISO 5267-1:2019 (“Pulps — Determination of drainability — Part 1: Schopper-Riegler method”) and its national adoption GB/T 3332–2016. The instrument supports GLP-compliant operation when paired with documented calibration logs, temperature-controlled water baths (±0.5°C), and certified volumetric glassware. Traceable calibration certificates for the drainage cylinder and SR beaker are available upon request.
Software & Data Management
While the HD-P005 is a manually operated, analog-readout instrument—designed for robustness, ease of validation, and minimal maintenance—it fully supports digital data capture workflows. Users may integrate external timers with NIST-traceable accuracy (e.g., ISO/IEC 17025-accredited stopwatch systems) and log results into LIMS or ELN platforms using standardized templates aligned with ASTM E2500 and FDA 21 CFR Part 11 requirements for audit trails. Optional QR-coded calibration labels on each accessory enable quick identification and version control within quality management systems. No embedded firmware or proprietary software is included—ensuring full transparency, long-term serviceability, and compatibility with evolving regulatory documentation standards.
Applications
- Quality control of pulp batches prior to paper machine approach flow systems.
- Refining process optimization in pilot plants and R&D laboratories—correlating SR degree with energy input (kWh/ton), hornification index, and handsheet strength properties.
- Supplier qualification and incoming raw material verification per TAPPI T227 or ISO 5267-1 acceptance criteria.
- Educational instruction in pulp & paper engineering curricula, emphasizing empirical relationships between fiber morphology, drainage kinetics, and sheet physical performance.
- Supporting ISO 9001:2015 and ISO 14001:2015 internal audits through documented, repeatable test procedures and equipment maintenance records.
FAQ
What standards does the HD-P005 comply with?
It is fully compliant with ISO 5267-1:2019 and GB/T 3332–2016 for Schopper-Riegler consistency measurement.
Is distilled water mandatory for testing?
Yes—ISO 5267-1 requires conductivity-controlled distilled or deionized water at 20 ± 0.5°C to eliminate ionic interference with drainage kinetics.
Can the instrument be used for high-consistency pulps (>1.0%)?
No—the SR method is validated only for dilute suspensions (typically 0.2–1.0%); higher consistencies require Canadian Standard Freeness (CSF) or dynamic drainage analyzers.
How often should the silicone seal ring be replaced?
Under normal usage (≤10 tests/day), replacement is recommended every 6 months or after 300 cycles—whichever occurs first—to maintain sealing integrity and prevent SR drift.
Does HAIDA provide calibration services or certification?
Yes—traceable calibration against NIST- or CNAS-accredited reference standards is available as an optional service, including full uncertainty budget reporting per ISO/IEC 17025.
