- With upper and lower displacement limit, safety and reliability;
- Lifting height can be adjusted arbitrarily to meet the needs of different users;
- Zero freely-drop test stand adopts the double-rail guiding device for stable and reliable lifting operation;
- The freely-drop test stand can achieve the clamping fall tests for surface, edge and corners of specimen at different direction;
- The machine is only needed to be placed on the flat marble or concrete ground for installation, without special foundation.