

-A two-way acting PU dust ring. It possesses two sealing lips of different geometries.
-Designed to remove dust while retaining a residual lubrication film on the retracting rod . collect traces of fluid passing the rod seal.
-Use radial pressure to prevent water.dust, dirt, sand and metal debris from entering the cylinder.Reduces scratches on the rod caused by external contaminants intruding into the guide sleeve, extending the working life of the rod seal.
*When the inner lip is under pressure, the inner lip has a sealing effect; the pressure outside the groove can form a static sealing.

-Good dust scraping effect (especially firmly bonded dust);
-Easy to install and disassemble (no special tools required);
-Slight rotation and swing do not affect working performance;
-Has the function of saving and reversely returning residual oil;
-Using elastic materials to reduce friction;
-Standard components conforming to standard grooves ,AN6231 ,ANS/B 93.35
| The Detailed Index of PU Material | ||||||||
| Material | Color | Hardness | Work Temperature | Density | Elongation at break | Elastic Modulus | Wear & Tear | |
| / | / | Shore A | ºC | g/cm³ | % | N/mm³ | mm³ | |
| Standard | / | DIN53505 | / | EN ISO 1183 | DIN53504/53455 | DIN53504 | DIN ISO4649 | |
| Polyurethane | PU | Green | A95±2 | -30~110 | 1.2 | ≥450 | 12 | 18 |
| High temperature hydrolyzable polyurethane | HPU | Red | A95±2 | -20~110 | 1.2 | ≥330 | ≥13 | 17 |
| Cast polyurethane | G-PU | Red | A95±2 | -30~110 | 1.2 | ≥280 | ≥11 | 25 |
| Low temperature resistant polyurethane | T-PU | Blue | A95±2 | -50~110 | 1.17 | ≥450 | ≥12 | 15 |
| Self-lubricating polyurethane | S-PU | Gray-Black | A95±2 | -20~110 | 1.23 | 400 | 17 | 21 |
| Ultra-high hardness polyurethane | X-PU | Dark Green | A97±2 | -30~110 | 1.21 | 400 | 21 | 18 |
| Ultra-high hardness High temperature hydrolyzable polyurethane | XH-PU | Dark Red | A97±2 | -20~110 | 1.22 | 350 | 25 | 20 |
| Ultra-high hardness Self-lubricating polyurethane | XS-PU | Gray-Black | A97±2 | -20~110 | 1.25 | 350 | 25 | 29 |
If the pressure is high,a pressure relief oil return hole should be provided in front of the double-lip dust seal to prevent pressure from building up between the sealing ring and the dust seal.
Due to our unique mahcined process, in addition to the above ordinary cross-sections, we can machined seals of any size and material according to customers' customized drawings.

0~4000mm
Producible Material
PU / PTFE / NBR / FKM / POM / PA / PEEK / PE

·Dedicated Machined Seal For More Than 8 Years.
·High-Pressure Extrusion Brings Higher Density Than Normally One-time Mass Molding.
·More Than 160 Types Sections.
·Customized Size :Dia 0~4000 mm

Our products are ideal for various applications with better raw materials, better processing, higher service life, excellent tensile strength and compression set, and can withstand different pressure media and operating temperatures. Effectively reduce the replacement cycle and maintenance costs. It is widely used in many industries with high quality requirements, such as; Coal mining, oil exploitation, wind power generation, lifting machinery, die-casting equipment, etc.
CNC lathe process breaks through the limitations of traditional molding processes. We can process seals of any size, any form and any material, As a source factory with 20 years of industry experience, we have been a reliable partner for our customers in the global market from design to after-sales.









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