Principle:
     When piston rod is impacted, it will drive piston to press oil in inner tube. Oil will be pressed out through orifice holes of inner tube. At the same time, the oil returns to inner tube through returning hole of inner tube.
    After outside force vanishes, spring makes piston rod immediately return to its position. Oil will return to inner tube through check valve. Then shock absorber will return to be ready position waiting for next action.

Attention
1.  It is strictly prohibited to knock or collide the shaft, which may easily lead to bending of the shaft.
2. The surface of the shaft should not be covered with sewage or dirty oil, and the shaft must operate in a clean environment.Otherwise, it will increase the probability of product leakage and reduce the service life of the product.
3. It is strictly prohibited to spray paint on the pipe teeth and axis, otherwise it will affect the heat dissipation effect and oil leakage.

Quality Standards
The company for the products are brand new original products, no second-hand and refurbished products, or leave a compensable ten and return the full amount, but the buyer due to our purchase of model error is not responsible for returns, another of the company's sales of products enjoy one year from the date of shipment quality assurance, according to the original quality standards, during warranty with product problems, need confirmation testing by the manufacturer, the supplier to be solved, the demand side due to storage, use, poor maintenance caused by lower-quality product, and not raise objections.

After-sale service
We can provide a series of after-sale service, such as product introduction, mounting, debugging, technical support and so on.