
Hydraulic Seal, Polyurethane Wiper Seals, PU Dust Wiper
Model: DAI
Temperature: -30/+100℃
Speed: ≤1m/s
Pressure: -
Product Introduction
Our rich experience in design and manufacturing, mature and reliable production process, and providing customers with satisfactory oil ring seal, dust wiper, chevron packing seal have made our business all over the world. We need talents with high cultural cultivation and good business quality, who can work hard with the company and have excellent character. The company continues to flourish thanks to the strong investment in technical research, the constant pursuit of technology improvement, service quality innovation for the company based on the foundation. Through arduous and unremitting efforts, we have become an advanced enterprise with standardized governance, efficient management, mature culture, high degree of marketization and strong international management capabilities.
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.


In the fierce market competition, we provide customers with high-quality Hydraulic Seal, Polyurethane Wiper Seals, PU Dust Wiper with advanced production equipment, reliable technology and strict and standardized management. The company attaches great importance to the construction of enterprise technology standard system and quality assurance system, and puts quality, service and reputation in the first place. Every step of the company's development comes from the trust and support of customers. Our company has always been professionally working with customers all over the world to create a better future.
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