The function of damper is mainly vibration reduction and energy dissipation.

The damper is a device that can quickly stop the movable part of the instrument in a stable deflection position. In seismic instruments, the damper is used to absorb the natural vibration energy of the vibration system, and its damping force is generally proportional to the moving speed of the vibration system. There are three main types: liquid damper, gas damper and electromagnetic damper.

The damper plays an important role in compensating the small friction and air resistance in the vibration pickup pendulum system and improving the frequency response. Dampers are widely used in aerospace, aviation, military industry, machinery and other industries. In the gravity shelf storage, the goods are accelerated in the inclined storage slide due to the influence of gravity.

If the goods are allowed to move freely and collide with the shelf, it may cause damage to the goods, potential safety hazards for operators and damage to the overall structure of the shelf. Damper plays a very important role in it. The damper in the gravity rack, also known as the reducer, is mainly used to eliminate the gravitational acceleration caused by the goods in the gravity rack.

Thus, the goods can slide smoothly and slowly along the track to eliminate potential safety hazards. Ensure the safety of goods and operators. The damping can be divided into external type and built-in type.