1、 What is a dust ring?
The reciprocating seal installed on the piston rod to prevent external dust from mixing into the hydraulic cylinder is the dust ring.
2、 What are the precautions for using the dust ring?
1. No matter what kind of dust ring it is, it can not bear pressure. In addition, the dust ring does not have sealing function. Its attention is to prevent dust (and it also needs to be used together with other seals).
2. Avoid cutting caused by the contact between the lip of the dust ring and the opposite edge of the wrench or the piston rod hole.
3、 What is the main function of the dust ring?
The dust ring is mainly used on the hydraulic and pneumatic piston rod, so its main function is to remove the dust attached to the external surface of the piston cylinder block and prevent sand, water and pollutants from entering the sealed cylinder block. In fact, most of the dust rings we use are made of rubber materials. Therefore, the dust ring is characterized by dry friction (which requires rubber materials to have particularly good wear resistance and relatively low compression set performance).
4、 What are the product types of dust rings?
With the change and development of science and technology, the product types of dust rings have begun to be enriched. According to the function, sealing mechanism, characteristics and structural type, the dust ring can be divided into many types.
1. According to the structural form, the dust ring can be divided into rectangular dust seal ring, J-shaped dust seal ring, chamfered dust seal ring, foot shaped dust seal ring and triangular dust seal ring.
2. According to the function, the dust ring can be divided into single acting dust seal ring and double acting dust seal ring.
3. According to whether there is a skeleton or not, the dust ring can be divided into non skeleton dust seal ring and skeleton dust seal ring.
4. According to whether it is combined or not, the dust ring can be divided into single dust seal ring and combined dust seal ring.