STEP Lab's drop weight towers can run both single- and multi-axial impact tests on standardized products and specimens; they are designed for accurate, repeatable results. A wide impact energy range from 0.2 J to 2000 J provides flexibility for a broad variety of products and materials. A large specimen mounting volume further increases test capacity.
A comprehensive accessory selection is available, including load cells, anti-rebound systems, spring accelerators and a wide range of instrumented impactors and specimen holders. Key features include an intuitive user interface, high safety with door interlocks active during reset, a pneumatic weight-release system, automatic weight retrieval and positioning, and variable drop height.
- Three models: DW750 (750 J), DW1000 (1000 J), DW2000 (2000 J)
- Impact speed 5.2 m/s unassisted; up to 20 m/s with the acceleration system (DW1000/DW2000)
- Standard weight set: 0.5 – 10 kg increments, up to 70 kg total
- Impact speed measurement at 200 kHz; force signal acquisition up to 10 MHz
- Fast switching between ISO and ASTM test setups
- Full integration with strain-gauge and piezoelectric load cells; optional climate chamber for DW1000/DW2000
Introduction Video
Model Comparison
| Parameter | DW750 | DW1000 | DW2000 |
|---|---|---|---|
| Climate chamber option | – | ✓ | ✓ |
| Test area (WxD) | 400 x 400 mm | 690 x 690 mm | 690 x 690 mm |
| Min. drop height | 0,04 m | ||
| Max. drop height | 1,40 m | ||
| Max. drop weight | 55 kg | 70 kg | 70 kg |
| Max. impact speed (unassisted) | 5,2 m/s | ||
| Max. drop weight (assisted) | – | 20 kg | 40 kg |
| Max. impact speed (assisted)* | – | 20 m/s | 20 m/s |
| Max. impact energy | 750 J | 1000 J | 2000 J |
| Compressed air | 6 – 8 bar | ||
| Device dimensions (WxDxH) | 780x600x2500 mm | 800x1400x3500 mm | 800x1400x3500 mm |
| Device weight | 600 kg | 950 kg | 1400 kg |
* The acceleration system is an optional add-on for the DW1000 and DW2000 models. STEP Lab's drop weight towers are typically customized to customer needs; please contact us for detailed information.
Key Features
- Maintenance-free, high efficiency
- Modular design with a wide operating range
- Automatic weight retrieval and speed readout system
- Fast, easy installation
- Direct speed readout and automatic impactor retrieval/positioning (standard on all models)
Test Methods
The most common drop-weight impact test methods are: puncture resistance testing, Compression After Impact (CAI) testing, tensile impact testing, 3-point bend testing and wedge peel impact testing. These tests evaluate the toughness of polymers, load-deflection curves and total energy absorption during impact events.
Supported Standards
Plastics:
Protective Equipment:
Metal:
Composite:
Bicycle:
Biomedical: