Qingji QJ211H Stack Compression Tester
| Origin | Shanghai, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (PRC) |
| Model | QJ211H |
| Price | USD 7,900 (FOB Shanghai) |
| Max Test Load | 30 kN |
| Load Rate Range | 0.01–300 mm/min |
| Platen Spacing | 500 mm (extendable to 800 mm) |
| Platen Dimensions | 500 mm × 500 mm (optional 800 mm × 800 mm) |
| Load Cell Accuracy Class | 0.5 |
| Force Resolution | 1 part in 500,000 full scale (no internal range switching) |
| Effective Test Width | 320 mm |
| Crosshead Travel | 500 mm (extendable to 800 mm) |
| Speed Accuracy | ±0.5% of set value |
| Displacement & Deformation Measurement Accuracy | ±0.5% of reading |
| Load Sensing | High-precision strain-gauge transducer (USA-sourced) |
| Control System | Panasonic全数字 AC servo controller |
| Control Mode | Full-digital closed-loop control supporting constant load, constant strain, and constant displacement protocols |
| Vertical Positioning | Dual-speed (fast/slow) motorized crosshead with manual override |
| Safety Protection | Software-based overload diagnosis, electronic limit switches, automatic shutdown at >110% of rated load |
| Return Function | Manual rapid return or programmable auto-return post-test |
| Fixture Customization | Application-specific compression platens and restraining fixtures available upon request |
| Power Requirement | 2–5 kW, 3-phase AC |
| Net Weight | ~145 kg |
Overview
The Qingji QJ211H Stack Compression Tester is an electromechanical universal testing system engineered for standardized static compression evaluation of corrugated fiberboard packaging—specifically designed to replicate real-world palletized stacking conditions under controlled, repeatable load application. It operates on the principle of uniaxial compressive force application between two parallel, rigid platens, measuring load-deflection response in accordance with internationally recognized test methods including ISO 12048, ASTM D642, ASTM D4577, TAPPI T 811, and GB/T 4857.20. The machine’s dual-space architecture supports both top-load compression and optional tensile/tear/puncture testing when equipped with auxiliary fixtures—making it suitable not only for carton stack strength validation but also for structural integrity assessment of paper tubes, cores, composite cans, and rigid plastic containers used in pharmaceutical, food, logistics, and e-commerce supply chains.
Key Features
- High-fidelity 30 kN load capacity with 0.5-class accuracy per ISO 7500-1 and ASTM E4, ensuring traceable calibration against national standards;
- Full-scale force resolution of 1:500,000 without range switching—enabling precise detection of initial buckling onset and progressive collapse behavior;
- Panasonic digital AC servo drive system delivering smooth, low-noise actuation across the full speed range (0.01–300 mm/min), with speed stability maintained within ±0.5% of setpoint;
- Dual-mode crosshead positioning: fast jog (for setup) and fine-tuned test-speed control (for compliance-sensitive protocols such as creep or long-duration stack hold);
- Integrated safety architecture including hardware limit switches, software-driven overload cutoff (>110% FS), and automatic emergency stop triggered by abnormal displacement deviation;
- Modular platen configuration: standard 500 mm × 500 mm platens with optional 800 mm × 800 mm variants to accommodate oversized shipping containers and multi-layer pallet loads;
- Compliance-ready control firmware supporting audit trails, user access levels, and configurable test method templates aligned with GLP and GMP documentation requirements.
Sample Compatibility & Compliance
The QJ211H accommodates a broad spectrum of rigid and semi-rigid packaging forms—including single- and double-wall corrugated boxes, fiber drums, spiral-wound paper tubes, edge protectors, honeycomb board assemblies, and thermoformed plastic trays. Its open-frame design allows direct integration with environmental chambers (optional) for temperature- and humidity-conditioned testing per ASTM D685 or ISO 187. All mechanical and electrical subsystems conform to CE marking directives (2006/42/EC Machinery Directive, 2014/30/EU EMC Directive) and meet IP20 ingress protection rating for laboratory environments. Calibration certificates are NIST-traceable and include uncertainty budgets compliant with ISO/IEC 17025:2017.
Software & Data Management
Bundled with Qingji’s proprietary TestMaster™ v4.2 software—a Windows-based, FDA 21 CFR Part 11–compliant platform featuring electronic signatures, role-based permissions, and immutable audit logs. Real-time data acquisition captures force, displacement, time, and derived metrics (e.g., peak load, energy absorption, stiffness modulus, creep strain rate) at up to 1 kHz sampling. Test sequences can be preprogrammed using drag-and-drop logic blocks for multi-stage protocols (e.g., ramp-to-load → hold-for-24h → ramp-to-failure). Export formats include CSV, XML, PDF reports with embedded metadata, and direct integration with LIMS via ODBC or REST API. Raw data files retain full resolution and timestamping for retrospective analysis and regulatory submission.
Applications
- Stack load simulation for warehouse storage qualification (ISO 2233, ASTM D642);
- Edge crush test (ECT) correlation studies and box compression strength prediction (McKee equation validation);
- Long-term creep deformation monitoring under sustained static load (ASTM D4577);
- Structural performance comparison of recycled vs. virgin fiberboard substrates;
- Validation of protective packaging designs for medical device sterilization trays;
- Quality conformance testing per customer-specific specifications (e.g., Amazon ISTA 6-SAM, Walmart FC-10);
- Root cause analysis of field failures linked to compression-induced collapse or delamination.
FAQ
What international standards does the QJ211H support out-of-the-box?
The system includes preloaded test templates for ISO 12048, ASTM D642, ASTM D4577, TAPPI T 811, and GB/T 4857.20—with full configurability for custom method development.
Can the tester perform both compression and tensile tests without hardware modification?
Yes—the dual-space frame allows simultaneous installation of compression platens and tensile grips; fixture swapping is tool-free and takes under 90 seconds.
Is third-party calibration certification included with shipment?
Each unit ships with a factory calibration certificate traceable to NIST and accredited to ISO/IEC 17025, valid for 12 months from date of dispatch.
How is data integrity ensured during extended stack-hold tests lasting over 168 hours?
TestMaster™ implements cyclic buffer logging with redundant local SSD storage and optional cloud backup—preventing data loss due to power interruption or system freeze.
Does the system support automated pass/fail evaluation against acceptance criteria?
Yes—users define dynamic pass/fail thresholds (e.g., “peak load ≥ 28.5 kN AND deformation ≤ 12.5 mm at 24 h”) with visual alerts and auto-generated nonconformance flags in reports.
