The shelf life and the scope of Warranty follow：
Shelf Life : 12 months after shipped or running time up th 2000 hours, under the specified conditions of assembly、lubrication and operation.
Warranty : During the shelf life, our company is responsible for manufacturing defects by maintenance and replacement.
However, the following occurs in the warranty period, we do not take any responsibilities:
(1) Improper installation or use;
(2)Arbitrary modification or repair;
(3)Failure caused by other products;
(4)other reasons that our company have no responsibilities for;The above warranty just aims at our products. Our company is not responsible for any other losses resulting from product failure, such as loss caused by equipment failure and equipment assembly, installation and dismantling.