GBPI GBN-2000Z – Box Compression Testing Machine (Carton Stacking & Crush Strength)
- Heavy-duty electromechanical box compression testing machine for carton crush strength and warehouse stacking stability
- Full testing compliance with ASTM D642, ISO 12048, ISO 2872, TAPPI T804, and GB/T 16491
- Rated compressive load capacity of 20 kN (2000 kgf) with high measurement precision within ±1%
- Generous compression testing platen space measuring 1000 × 1000 × 1000 mm for complete corrugated shippers
- Comprehensive testing modes: Peak Crush Test, Stacking Creep Simulation, and Displacement Limit Testing
- Precision closed-loop AC servo drive system coupled with twin preloaded zero-backlash ball screws
- Integrated computerized software providing real-time force-displacement curves and automatic BCT reporting
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The GBPI GBN-2000Z is an advanced, high-rigidity electromechanical box compression testing machine engineered to evaluate the compressive resistance, top-to-bottom crush strength, and warehouse pallet stacking endurance of corrugated fiberboard boxes, cartons, paper honeycomb structures, plastic crates, and industrial shipping drums. Built in strict conformity with internationally established packaging standards—including ASTM D642 (standard test method for determining compressive resistance of shipping containers, components, and unit loads), ISO 12048, ISO 2872, and TAPPI T804—this instrument is essential for protective transport packaging optimization.
Corrugated shipping boxes undergo severe static compressive loads during prolonged warehouse stacking, exacerbated by high ambient humidity and vibration during multi-modal transportation. Inadequate box compression strength (BCT) causes corner buckling, bottom carton collapse, pallet tilting, and severe product damage. Operating as an industrial-grade box compression testing machine, the GBN-2000Z compresses full-size packaged containers between a motorized upper platen and a rigid base platen, accurately recording compressive force versus platen travel until structural yield or collapse.
Multi-Mode Testing: Crush, Stacking & Creep
The instrument provides three primary programmable testing regimes. In crush strength mode, the crosshead descends at a regulated speed to determine ultimate crushing load and deformation at failure. In stacking simulation mode, a predetermined load equivalent to multi-tier pallet weight is applied and maintained over an extended holding period to evaluate time-dependent creep deformation and stacking fatigue. In displacement limit mode, the machine records load response up to a specified allowable deflection threshold.
Precision Dual Ball Screw Servo Architecture
The structural load frame incorporates heavy-duty precision twin ball screws driven by a Panasonic AC digital servo motor, ensuring vibration-free platen descent and exact crosshead parallelism under asymmetric container loading. Multi-sensor load cells positioned at platen quadrants eliminate eccentric loading errors, ensuring consistent ±1% load accuracy.
Widely utilized by corrugated box plants, consumer goods manufacturers, food and beverage packagers, and logistics testing laboratories, the GBN-2000Z validates container structural designs, optimizes fluting selection, and prevents expensive transit freight damages.
GBPI GBN-2000Z Box Compression Testing Machine – Technical Specifications
| Technical Parameter | Specification Details |
|---|---|
| Test Principle | Electromechanical Top-to-Bottom Compression & Constant Load Stacking (ASTM D642) |
| Applicable Standards | ASTM D642, ISO 12048, ISO 2872, TAPPI T804, GB/T 16491, GB 4857.16, JIS Z0212 |
| Maximum Load Capacity | 20 kN (Approximately 2000 kgf / 4500 lbf) [Optional 50 kN capacity] |
| Load Measurement Precision | ±1% of Indicated Load (Effective measuring range: 0.4% to 100% FS) |
| Effective Testing Space | 1000 mm (W) × 1000 mm (D) × 1000 mm (H) [Standard Platen Area] |
| Compression Test Speed | 1 mm/min to 100 mm/min (Stepless variable digital speed regulation) |
| Standard Test Speed | 10 ± 3 mm/min (Conforming to ASTM D642 and ISO 12048 guidelines) |
| Operational Test Modes | Crush Test (BCT Peak), Constant Load Stacking Creep Test, Deflection Limit Test |
| Drive & Guidance Mechanism | Precision Dual Ball Screws driven by Digital AC Servo System with Linear Guides |
| Safety Protection Features | Overload Limit Stop, Upper/Lower Travel Limit Switches, Emergency Stop Actuator |
| Overall Machine Dimensions | 1650 mm (L) × 1150 mm (W) × 1880 mm (H) |
| Total Machine Net Weight | Approximately 780 kg |
| Electrical Supply Requirements | AC 380V ± 10%, 50 Hz / 60 Hz 3-Phase or AC 220V Single-Phase Custom |
Key Performance Features of the GBPI GBN-2000Z
- Dual Ball Screw Servo Drive: Powered by a high-torque AC digital servo motor coupled to twin precision ground ball screws, ensuring perfectly balanced platen descent without tilting or backlash.
- Three Specialized Testing Modes: Supports ultimate box crush strength testing (BCT), programmable constant-load stacking simulation (creep analysis up to 999 hours), and fixed displacement collapse screening.
- Multi-Point Load Cell Array: Employs high-precision multi-sensor load detection across platen corners, guaranteeing accurate reading even when off-center or irregularly shaped cartons are compressed.
- High-Rigidity Heavy-Duty Frame: Thick reinforced steel platen structure withstands up to 20 kN of continuous compressive force with minimal deflection, maintaining true parallelism under full load.
- Integrated Statistical Analysis: Professional PC software logs real-time force versus deformation curves, automatically identifying yield points, peak failure load, and McKee formula predictive values.
- Comprehensive Operator Protection: Equipped with dual stroke limit sensors, electronic load overload protection, and an oversized prominent emergency stop button.
Standard Package & Accessories
| Item | Description | Quantity | Type |
|---|---|---|---|
| 1 | GBN-2000Z Box Compression Testing Machine Mainframe (1000 × 1000 mm Platen) | 1 Set | Standard |
| 2 | Precision High-Resolution Load Cell System (20 kN Capacity) | 1 Set | Standard |
| 3 | Digital Closed-Loop AC Servo Motor and Drive System | 1 Set | Standard |
| 4 | Computer Communication Interface & Data Acquisition Cable | 1 Set | Standard |
| 5 | Professional Box Compression & Stacking Analysis Software Package | 1 Set | Standard |
| 6 | Factory Calibration Verification Certificate and Operation Guide | 1 Set | Standard |
Primary Testing Applications
Corrugated Shipping Boxes (RSC)
Top-to-bottom compression strength (BCT) verification for single-wall, double-wall, and triple-wall corrugated shipping containers used in logistics and export freight.
Warehouse Pallet Stacking Simulation
Evaluation of long-term stacking creep, vertical deformation, and corner fatigue under constant sustained loads simulating multi-tier warehouse pallet storage.
Plastic Crates, Pails & Jerrycans
Compressive yield testing for reusable plastic transport crates, chemical drums, and blow-molded liquid containers per hazardous material transport regulations.
Paper Honeycomb & Edge Protectors
Crush resistance testing of heavy-duty paper angle boards, honeycomb cushioning panels, and corrugated pallet feet under static loads.