Instrumented Drop Tower / Falling Weight Impact Tester
- GB/T 33835, GB/T 21239, ASTM E4274, ISO 6603-1, ISO 6603-2, EN ISO 6603-2
- GB/T 11548, GB/T 14152, ASTM D5628, ASTM D3029, ISO 17281, ISO 11342, EN 60811-4-1
Instrumented drop towers, or falling weight impact testers, are used when more than a simple pass/fail result is required. The guided weight drops from a set height, so the striker hits the specified point on the specimen. When the impact occurs, the dynamic load sensor measures the force during the blow, and the fiber-optic sensor records the speed of the striker. The high-speed data acquisition unit sends these readings to the test software, which uses them to calculate peak force and absorbed energy and generate a force-time curve. The force, speed, and energy readings show how the specimen responded to the impact and help determine whether it deformed, cracked, or broke.
| Max. Impact Energy | 1 – 150 J |
| Impact Speed | 1 – 5.29 m/s |
| Impact Height | 0.1 – 1.4 m |
| Hammer Lift Speed | 1 – 3 m/min |
| Hammer positioning accuracy | ±0.5 mm |
| Hammer | |
| Striker 1 Mass | 2 – 5.5 kg |
| Striker 2 Mass | 6 – 12 kg |
| Mass Increase | 0.5 kg, 1 kg |
| Data Acquisition System | |
| A/D Sampling Resolution | 16 bits |
| Max. Sampling Frequency | 55 kHz |
| Resolution (RMS) | ≥ 0.80 lb-rms |
| Experimental Dynamic Error | < 1% |
| Sensor Parameters | |
| Max. Load of Tensile Dynamic Sensor | 25 kN |
| Sensor Stiffness | 29 lb/μin |
| Operating Temperature Range | -54 – +120 ℃ |
| Sealing Method | Laser Welding |
| Loading Unit Parameters | |
| Discharge Time | ≥ 2000 sec |
| Overall Dimensions (Approx.) (L×W×H) | 866 × 506 × 2,700 mm |
| Net Weight (Approx.) | 1200 kg |
| Power Supply | AC 220V ±10%, 50Hz |
Instrumented drop towers are used to evaluate metals, polymers, composites, plastic sheets, and plastic pipes during material research and development, product evaluation, routine quality control, and compliance testing.
