The dust ring is a reciprocating seal installed on the hydraulic and pneumatic piston rod, mainly used to remove dust from the surface of the piston rod and prevent pollutants from entering the sealed cylinder body. Its material is mainly rubber, and in recent years, it has gradually adopted a combination structure of PTFE and O-ring to improve wear resistance and service life. They can be assembled in grooves according to standard ISO 7425/1.
d h9
mm |
D H9 mm |
L3+0.2
mm |
D4 |
a min |
B mm |
C≥ |
|
| 20~100 |
d+8 |
6 |
6 |
d+3.5 |
8 |
5 |
| 105~200 |
d+12 |
8.2 |
8.2 |
d+5 |
11 |
5 |
| 205~440 |
d+15 |
9.5 |
9.5 |
d+7 |
13 |
7 |
Mobile machinery
Injection presses
Machine tools
Standard cylinders
Injection moulding machines
Optimal sealing in static and dynamic applications
Low friction coefficient; no stick-slip effect
Excellent abrasion and extrusion resistance
Wide temperature range and excellent chemical resistance
Guangdong DEF Seals Solutions Co., Ltd. is a leading seals original manufacturer carrying with 15 years professional experience, focus on full series hydraulic seals and PTFE component seals, which including guide rings and Spring Energized Seals, as well as CMRD (Custom Made, Rapid Delivery) urethane and rubber seals.
As a high-performance seals maker, DEF Seals Solutions operates a state of the art manufacturing facility, including 10, 000 sq. Meters workshop, 1, 000 sq. Meters stable temperature/humidity PTFE workshop, CNC machine, NC sinter, 2000T press, NC urethane casting machine and exclusive urethane vertical NC lathe, which machining range up to 1500 mm. These have given us a leading edge in the sealing industry.
DEF Seals Solutions has developed to be one of the largest sealing maker and to supply all facets of industry from construction machine to large OEM′s.
DEF Seals Solutions received ISO 9001 certification which allows us to support the growing and ever changing customer demand with supplying high quality products and service across the world.
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