Sandbag Mechanical Load Testing Machine
Get a quote：
Whats/App: +86 181 0160 0864
Web: gellowen.co.uk
The Sandbag Mechanical Load Testing Machine is a precision instrument designed to assess the mechanical load-bearing capacity of photovoltaic (PV) modules under static and dynamic conditions. By combining sandbag static loads with dynamic pressure from low-friction cylinders, it simulates wind, snow, and ice loads. This enables accurate evaluation of compressive strength, structural stability, and overall reliability, ensuring PV modules perform safely under real-world environmental conditions.
Application
The machine is widely used for mechanical performance testing and structural verification of PV modules:
Photovoltaic Module Load Testing: Static and dynamic load endurance evaluation.
Environmental Simulation: Wind, snow, and ice load testing.
Structural Safety and Compressive Strength Verification: Ensuring module stability under stress.
Installation Scheme Optimization: Evaluating mounting reliability and performance.
Electrical Continuity Monitoring: Real-time detection of short circuits and circuit integrity.
Standardized Laboratory Testing: For wind and solar energy experiment labs.
Certification Testing: Compliant with IEC 61215. IEC 61646. UL 1703. IEC 62782.
Standards
The machine is designed to comply with international and domestic PV module mechanical testing standards:
GB/T 9535 series – Mechanical Load Testing of Photovoltaic Modules
IEC 61215 – Crystalline Silicon PV Module Design Qualification and Type Approval
IEC 61646 – Thin-Film PV Module Design Qualification
IEC 62782 – Mechanical Load Testing of PV Modules under Snow and Wind
UL 1703 – Safety Standard for Photovoltaic Modules
Parameters
| Item | Technical Parameter |
|---|---|
| Machine Dimensions | L 280 × D 180 × H 195 cm |
| Forward Load | 5400 Pa (adjustable) |
| Reverse Load | 2400 Pa (adjustable) |
| Cycle Count | Programmable |
| Dynamic Load Frequency | 7 s ±3 s |
| Dynamic Load | 1000 Pa × 1000 cycles |
| Pressure Control Accuracy | ±5% |
| Force System | Sandbag + low-friction cylinder + tension/compression sensor (0.1 N accuracy) |
| Frame Material | Aluminum profile structure with electrophoretic surface treatment |
| Max Test Size | 2000 × 1000 mm (customizable) |
| Custom Fixtures | Adjustable according to module installation |
| Electrical Continuity System | DC 150 V / 2 A, real-time monitoring |
| Number of Cylinders | 8 (4 sets × 2) |
| Cylinder Force per Set | >200 kg |
| Cylinder Stroke | 150 mm |
| Suction Cups | 32 (8 sets × 4) |
| Suction Cup Diameter | 120 mm |
| Suction Cup Spacing | ≤200 mm (horizontal/vertical) |
| Suction Cup Joint Rotation | ≥15° |
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