
Wiper Seal/Dust Piston Rod Hydraulic Seal Ring
Model: DAI
Temperature: -30/+100℃
Speed: ≤1m/s
Pressure: -
Product Introduction
Over the years, we have relied on our own efforts and the support of our clients to strengthen technical exchange and cooperation at home and abroad, forming our unique advantages of vari seal rotary, spring energised lip seal, u cup osi. On the way to regulate the construction of integrity, we strive to build a high-quality staff team. The company takes the promotion of product production level as its own responsibility, and always puts independent technology research and development and product innovation and transformation in enterprise development. All our new products have undergone rigorous performance testing and actual repeated experiments, so that product quality can be reliably guaranteed. We constantly revise our service trajectory and put the needs of customers first.
Description
Dust wiper DAI is a single-acting elastomeric dirt wiper with bearing segments. The ratio of the wiping lip ensures that it remains in contact with the surface of the rod to remove large amounts of deposited contaminants such as mud and ice. The outside diameter of the wiper incorporates a crush lip to provide an interference fit with the housing. This feature help prevent contamination from entering the groove.
Dirt, dust, and moisture must not contaminate the working medium and, most importantly, must be kept away from the pressure seal edges. Depending on the application, a simple wiper with or without metal reinforcement and a double wiper with or without pressure relief can be used. DAI wipe seals can be used with mineral oil and many other types of hydraulic fluids. Special versions are available for use at high ambient temperatures. Care must be taken to ensure that there is no pressure buildup inside the wiper, including grease lubricant pressure.
Material | PU, FKM, NBR |
Color | Red, Blue, Ivory, Green, Black, Brown etc. |
Speed | ≤1m/s |
Temperature | -30 to 100℃ |
Pressure | - |
Medium | Mineral oil based hydraulic fluids, barely flammable hydraulic fluids, water, air and others |
Application | Industrial hydraulics, Machine tools, Presses etc. |
Standard or can fit the groove | Comply with standard of A5, DH-05, Merkel-P6 series, Hunger-AI series |

Installation Dimension table based on Metric Size (mm)
d h9 | D H9 | L +0.2 | D1 H11 | H | R1≤ | C≥ |
16~70 | d+8.6 | 5.3 | d+3 | 7 | 0.4 | 5 |
75~120 | d+12.2 | 7.2 | d+6 | 12 | 0.4 | 5 |
125~160 | d+15 | 10.2 | d+7.6 | 16 | 0.4 | 7 |
180~500 | d+20 | 10.2 | d+10 | 18 | 0.8 | 7.5 |
510~530 | d+30 | 15.2 | d+15 | 25 | 0.8 | 8 |
555~900 | d+25 | 12.7 | d+12.6 | 20 | 0.8 | 7.5 |
Feature
● Good seating at the outside diameter
● Very good wiping action
● Wiper can be used for a wide temperature range
● No twisting in the housing and no pressure build-up between seal and wiper


The company has 5,000 square meters of professional production plants, 2000 square meters of constant temperature and humidity production workshop, dozens (sets) of advanced production equipment.
Own a professional and technical production team and sales service team.
The selection of raw materials are international first-line brand suppliers, In order to ensure product quality, we promise that don't add waste (recycled materials) in the material.


Adhering to technology leadership, taking the development path of combining production, teaching and research, and continuously committing to Wiper Seal/Dust Piston Rod Hydraulic Seal Ring industry with Chinese characteristics are our biggest characteristic advantages and directions since our development. It is one of our important missions to actively fulfill our corporate social responsibility and focus on creating value for society. The quality of products is the fundamental embodiment of our dignity, outstanding quality refuse to accept mediocrity.
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