Hail Impact Test Machine
Application
The Hail Impact Test Machine is suitable for a variety of testing and research scenarios:
Type testing and certification of PV modules
Factory inspection and quality control of PV modules
R&D evaluation of PV modules’ hail resistance
Impact durability testing of wind power and other photovoltaic building components
Climate simulation laboratories for mechanical impact studies
Safety and reliability assessment of solar PV systems
Standards
The machine is designed to meet the following key standards:
(1) GB/T 9535 – Crystalline Silicon Terrestrial Photovoltaic Modules – Design Qualification and Type Approval
(2) IEC 61215 – Terrestrial Photovoltaic Modules – Design Qualification and Type Approval
(3) IEC 61646 – Thin-Film Photovoltaic Modules – Design Qualification
(4) UL 1703 – Standard for Safety of Photovoltaic Modules
Parameters
| Item | Technical Specification |
|---|---|
| Launch Device Power | Compressed air from air compressor |
| Air Pressure | 6 – 8 bar |
| Ice Ball Loading | Manual single-shot |
| Barrel Length | ~940 mm, replaceable |
| X-Axis Travel | ~2100 mm |
| Y-Axis Travel | ~1000 mm |
| Positioning Accuracy | ≤1 mm |
| Impact Area | 2000 × 1000 mm |
| Guidance | High-precision imported rails |
| Drive | Imported servo motor + synchronous belt |
| Position Control | Automated via upper computer |
| Ice Ball Speed Measurement | Infrared sensor captures flight time t, V=S/t |
| Speed Accuracy | ±5% |
| Speed Range | 0 – 50 m/s |
| Ice Ball Impact Speed | 25 mm: 23.0 m/s ±5%; 35 mm: 27.2 m/s ±5%; 45 mm: 30.7 m/s ±5% |
| Ice Ball Diameter Deviation | ≤5% |
| Ice Ball Weight Deviation | ≤5% |
| Ice Ball Preparation Temperature | -10℃ |
| Ice Ball Mold | Inner diameter precision <1%; 1 mold 6 balls, at least 2 sets; CNC machined, deformation-resistant material |
Features
Automated X/Y-axis positioning ensures precise ice ball impact on designated areas
High-precision infrared speed measurement system monitors real-time ice ball velocity
Simulates realistic hail diameters and impact speeds according to IEC and UL standards
Ice ball mold precision guarantees diameter and weight deviation ≤5%
Replaceable barrel design adapts to different ice ball sizes
Upper computer control executes automated impact sequences, enhancing repeatability and safety
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