HAIDA HD-A840 Corrugating Tester
| Brand | HAIDA INTERNATIONAL |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Manufacturer |
| Country of Origin | China |
| Model | HAIDA HD-A840 Corrugating Tester |
| Working Speed | 4.5 rpm |
| Speed Accuracy | ±0.2 rpm |
| Temperature Control Range | Ambient to 200 °C |
| Standard Operating Temperature | 175 °C |
| Temperature Resolution | 1 °C |
| Temperature Accuracy | ±1% of setpoint |
| Adjustable Pressure Range | 49–108 N |
| Spring Tension | 100 N (adjustable) |
| Fluting Roller Outer Diameter | 228.5 ± 0.5 mm |
| Fluting Roller Thickness | 16 ± 0.05 mm |
| Number of Teeth | 84 |
| Tooth Profile | A-Flute |
| Upper Tooth Radius | 1.5 ± 0.1 mm |
| Lower Tooth Radius | 2.0 ± 0.1 mm |
| Flute Depth | 4.75 ± 0.05 mm |
| Sample Dimensions | 152 mm × 12.7 mm (L × W) |
| Overall Dimensions | Approx. 454 mm × 554 mm × 470 mm (L × W × H) |
| Weight | Approx. 60 kg |
| Power Supply | 1Ø AC 220 V |
| Total Power Consumption | ~1.8 kW |
Overview
The HAIDA HD-A840 Corrugating Tester is a precision-engineered laboratory instrument designed exclusively for the standardized preparation of corrugated medium samples prior to Corrugated Medium Test (CMT) and Corrugated Crush Test (CCT) evaluation. It operates on the principle of controlled thermal-mechanical fluting—applying calibrated pressure, temperature, and rotational speed to replicate industrial-grade A-flute formation on virgin or recycled corrugated medium paper. By generating geometrically consistent flutes with defined tooth geometry (84 teeth, A-flute profile), the HD-A840 ensures specimen uniformity across laboratories, directly supporting reproducibility in compression strength testing per ISO 7263-1:2018 and GB/T 1061-2016. Its role is strictly preparatory: it does not perform compression measurements itself but enables compliance with standardized sample conditioning protocols required for valid CMT/CCT results.
Key Features
- High-precision S136 stainless steel fluting roller—heat-treated for dimensional stability, superior thermal conductivity, and long-term wear resistance under repeated thermal cycling;
- PID-based digital temperature controller with real-time display of both setpoint and actual roller surface temperature, including over-temperature cut-off protection;
- Adjustable mechanical pressure system (49–108 N range) with calibrated spring tension (100 N nominal), enabling precise control over flute height and waveform fidelity;
- Thermally insulated roller housing and top cover assembly to minimize operator exposure to surface temperatures exceeding 175 °C;
- Stable low-speed drive mechanism (4.5 rpm ±0.2 rpm) ensuring uniform deformation without fiber rupture or edge buckling during fluting;
- Robust structural frame and powder-coated enclosure for corrosion resistance and long-term operational integrity in QC lab environments.
Sample Compatibility & Compliance
The HD-A840 is validated for use with single-faced corrugated medium (linerboard-substrate combinations excluded) conforming to standard grammage ranges (120–250 g/m²) and moisture content ≤12%. It produces A-flute profiles meeting ISO 7263-1:2018 dimensional tolerances: flute pitch = 3.6 mm, flute height = 4.75 ± 0.05 mm, upper/lower arc radii as specified. The instrument supports full traceability in regulated environments: temperature calibration records, pressure verification logs, and roller geometry certification can be maintained per GLP requirements. While not FDA 21 CFR Part 11–compliant by default (no electronic audit trail), its analog-digital hybrid control architecture permits integration into validated lab systems via external data loggers for IQ/OQ documentation.
Software & Data Management
The HD-A840 employs a dedicated microprocessor-based control unit with embedded PID algorithm for closed-loop thermal regulation. All operational parameters—including set temperature, real-time roller temperature, elapsed heating time, and cycle completion status—are displayed on a high-contrast LED interface. No proprietary software installation or PC connectivity is required; however, optional RS-485 or analog 4–20 mA output modules (available upon request) allow integration with centralized lab monitoring systems. Temperature calibration certificates (NIST-traceable reference thermocouples) and pressure verification reports are provided with each unit shipment to support ISO/IEC 17025 accreditation readiness.
Applications
- Preparation of standardized A-flute specimens for CMT (Corrugated Medium Test) per ISO 7263-1 and GB/T 1061;
- Generation of test coupons for CCT (Corrugated Crush Test) using paired CMT/CCT fixtures on universal compression testers;
- Quality assurance screening of incoming corrugated medium batches in packaging R&D and production QA labs;
- Method validation studies comparing fluting consistency across different medium grades or recycled fiber blends;
- Supporting ASTM D642 / ISO 3037 correlation studies where standardized fluting precedes edge crush testing (ECT).
FAQ
What standards does the HD-A840 comply with?
It is engineered to meet the dimensional and procedural requirements of ISO 7263-1:2018 and GB/T 1061-2016 for laboratory fluting of corrugated medium.
Can the HD-A840 produce B-, C-, or E-flute profiles?
No—the roller geometry is fixed for A-flute only. Custom rollers for alternate flute types are not available for this model.
Is operator training required before first use?
Yes—a certified technician must verify roller alignment, temperature uniformity across the fluting surface, and pressure calibration prior to routine operation; HAIDA provides on-site commissioning support.
What maintenance intervals are recommended?
Daily visual inspection of roller surface integrity; biannual torque verification of pressure springs; annual recalibration of temperature sensors using Class I thermocouples.
Does the instrument include CMT and CCT test fixtures?
Yes—standard delivery includes one set each of ISO-compliant CMT and CCT compression fixtures, fully dimensioned to match ISO 7263-1 Annex A specifications.
