GBPI GY-1A Computer-Controlled Compression Tester for Corrugated Core Paper and Packaging Board
| Brand | GBPI |
|---|---|
| Model | GY-1A |
| Measurement Range | 30–3000 N |
| Resolution | 1 N |
| Indication Accuracy | ±1% FS |
| Repeatability | ≤1% |
| Test Speed | (12.5 ± 2.5) mm/min |
| Parallelism of Upper/Lower Platen | <0.05 mm |
| Maximum Platen Separation | ≥70 mm |
| Net Weight | ~34 kg |
| Dimensions (W×D×H) | ~330 × 350 × 510 mm |
| Compliance | TAPPI T472, JIS P 8126, GB/T 2679.8, GB/T 6546, GB/T 6548, GB/T 2679.6, GB/T 451.3, GB/T 6547 |
Overview
The GBPI GY-1A Computer-Controlled Compression Tester is a precision-engineered instrument designed specifically for mechanical strength evaluation of corrugated packaging materials in quality control and R&D laboratories. It operates on the principle of axial compressive loading under controlled displacement rate, enabling quantitative determination of compressive resistance along the Z-axis—critical for predicting real-world performance of corrugated core paper, linerboard, and finished corrugated board. The system conforms to internationally recognized test methodologies including edge crush test (ECT), ring crush test (RCT), flat crush test (FCT), peel adhesion test (PAT), and laboratory fluting tests (CCT/CMT), all executed using standardized fixtures and specimen geometries defined in TAPPI, JIS, and Chinese national standards (GB/T series). Its rigid frame, high-precision load cell, and closed-loop speed control ensure consistent force application and high reproducibility across repeated measurements.
Key Features
- Microprocessor-based control system with digital display and real-time load–displacement curve plotting
- Adjustable crosshead speed maintained at (12.5 ± 2.5) mm/min per ISO 1924-3 and TAPPI T812 specifications
- High-stiffness dual-column architecture ensuring minimal deflection during high-load compression
- Load cell calibrated to ±1% full-scale accuracy with 1 N resolution for reliable low- to mid-range force measurement
- Parallelism between upper and lower platens maintained within <0.05 mm, minimizing eccentric loading effects
- Modular fixture interface supporting rapid tooling changeover for RCT, ECT, FCT, PAT, CCT, CMT, and thickness testing
- Integrated safety mechanisms including overload protection, emergency stop, and automatic motor cutoff upon test completion
Sample Compatibility & Compliance
The GY-1A accommodates standard specimens defined in major packaging testing standards: 15.0 mm × 15.0 mm rings (TAPPI T822), 25 mm × 100 mm edge strips (TAPPI T811), 60 mm × 60 mm flat crush samples (TAPPI T826), and fluted test specimens per TAPPI T825. It supports both single-face and double-wall corrugated board configurations, as well as solid fiberboard and kraft linerstock. All test modes are traceable to accredited calibration protocols aligned with ISO/IEC 17025 requirements. The instrument meets essential regulatory expectations for GLP-compliant environments—including documented calibration history, operator identification logging, and audit-ready test record generation—though it does not include FDA 21 CFR Part 11 electronic signature functionality unless paired with optional GBPI LabSuite software.
Software & Data Management
While the base GY-1A operates via embedded firmware with local LCD readout and manual data recording, GBPI offers optional LabSuite PC software (v3.2+) for enhanced data acquisition, statistical analysis, and report generation. This software enables automated pass/fail evaluation against user-defined specification limits, batch-level trending, export to CSV/PDF formats, and compliance with internal QA documentation workflows. Raw test data—including peak load, deformation at yield, and modulus estimation—are timestamped and stored with operator ID and sample ID metadata. Exported datasets retain full traceability for internal audits or third-party verification per ISO 9001 or IATF 16949 frameworks.
Applications
- Quality assurance of incoming corrugated medium and linerboard raw materials
- Process validation of corrugator line settings (e.g., glue temperature, dwell time, pressure roll alignment)
- Comparative assessment of alternative fiber blends or recycled content impact on crush resistance
- Design validation of new box architectures under simulated stacking loads
- Root cause analysis of field failures linked to insufficient ECT or RCT values
- Supporting ISTA 3A/3E transport simulation protocols through correlation of lab-measured crush strength to dynamic compression performance
FAQ
What standards does the GY-1A directly support out-of-the-box?
It is factory-configured and mechanically validated for TAPPI T472 (RCT), T811 (ECT), T826 (FCT), and corresponding GB/T and JIS equivalents.
Can the GY-1A perform thickness measurement without additional hardware?
Yes—when equipped with the optional thickness test pad accessory, it measures caliper of paper, board, and corrugated sheet per ISO 534 and GB/T 451.3.
Is third-party calibration certification available?
GBPI provides NIST-traceable calibration certificates (optional add-on) compliant with ISO/IEC 17025, including uncertainty budgets and as-found/as-left data.
Does the instrument require annual recalibration?
Per ISO 9001 clause 7.1.5.2, users must establish a calibration interval based on usage frequency and criticality; GBPI recommends biannual verification for production-critical labs.
Are replacement fixtures and consumables supplied by GBPI?
Yes—standardized RCT center disks, ECT guide blocks, PAT clamps, FCT cutters, and CCT fluting tools are stocked and shipped globally with lead times under 10 business days.
