Dust ring can be divided into lip-shaped dust ring, Tekang combination of dust ring, Zuo Kang combination of dust ring,
which can be divided into a lip-shaped dust ring with a skeleton-shaped dust ring, no skeleton lip dust ring.
1) skeleton lip-shaped dust ring: it is the use of skeleton and cavity hole interference to achieve anti-off, dust ring lip and cylinder head flush,
the structure can make the lip from external causes damage , And more for construction machinery, garbage trucks and other walking machinery lip easy to be damaged occasions.
2) no skeleton lip-shaped dust ring: it is installed in the front end of the cylinder closed groove,
the design should be slightly protruding lip mouth cylinder head end, in order to easily remove the lip denied dirt, the Easy to install,
the most widely used, can be used for general industrial hydraulic and pneumatic products.
3) Tekang combination of dust ring (PTFE + rubber): it uses the O-ring elasticity of the wear of polished PTFE (PTFE) lip real-time wear compensation,
with different materials O-ring Can be used for high-speed, high temperature and special working medium occasions.
4) Zuo Kang combination of dust ring (polyurethane + rubber): not commonly used, the structure with Tekang combination of dust ring,
the difference is that the polytetrafluoroethylene (PTFE) part of the polyurethane (Pu). It utilizes the elasticity of the O-ring to
compensate for the wear of the wearable polyurethane (Pu) lip, which has the advantage of being longer than the average lip-shaped dust ring.
Pneumatic ring use Note: All dust ring can not be pressure, that is, does not have a sealing function, its role is only dust,
it must be used with other seals: the design should avoid the dust ring lip and Piston rod hole or wrench contact with the edge of the lead to be cut.