How to divide the dustproof oil seal of crushing hammer

  Dustproof oil seal is also the most critical oil seal in the hydraulic system, which can be divided into simple mouth oil seal and double mouth oil seal from the structure. Single lip oil seal it has only one lip mouth, the lip mouth is toward the crushing hammer under the cylinder body this side, to prevent the outside dust into the cylinder body, resulting in hydraulic oil black. Lip mouth oil seal in addition to dust mouth, another side more than a lip mouth, to prevent hydraulic oil flow out of the cylinder block, play the role of sealing oil.