
PU Ring Seal Dust Wiper Seal Das Oil Seal for Excavator
Model: DAI
Temperature: -30/+100℃
Speed: ≤1m/s
Pressure: -
Product Introduction
Strong technical force and first-class testing instruments ensure the market share of our rotary shaft seals, metric hydraulic wear ring, PTFE oil seal. We take technological innovation as the core, institutional innovation as the guarantee, and management innovation as the foundation, leading the company to embark on a unique path of entrepreneurship and innovation. From technology to quality, from function to performance, we can meet you all, whether you think or what you didn't expect.
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.


Our company will rely on equipment innovation and technological progress to continuously improve the technical quality of employees to ensure that enterprises provide customers with better PU Ring Seal Dust Wiper Seal Das Oil Seal for Excavator. When you are keen on any of our goods following you view our product list, be sure to feel free to make contact with us for inquiries. We ensure the health and safety of our employees and related parties with our continuous improvement of production rules and regulations.
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