DHS wipers are protective seals made of industrial-grade polyurethane for hydraulic cylinders in continuous production lines, presses with intensive cycles, and industrial lifting systems. Compared to economical versions, DHS uses a better material that lasts longer and maintains consistent cleaning efficiency over longer intervals — important when the cylinder operates 16-24 hours a day and unplanned downtime costs more than the entire overhaul. Complete codes, dimensions, and material variants are available on the hydsealstore shop, with recommendations for each operating regime.
Industrial-grade polyurethane with superior resistance to ozone and chemical aging compared to economical versions — a factor that matters during long-term storage and use in environments with ozone (welding lines, heavy-duty machinery). The profile effectively removes both dry particles and adhering semi-fluid mud, with a contact force calibrated for cleaning without excessive rod wear. It operates between -30°C and +100°C. Compatible with mineral oils and biodegradable HETG or HEPG fluids — important in the food industry or in applications with strict environmental requirements, where mineral fluids are not permitted. Complementary sealing components are available in the range of hydraulic seals.
DHS is chosen for production lines with cylinders that operate non-stop, hydraulic presses with rapid cycles where splashes of processed material and lubricants reach the rod, lifting systems in factories and warehouses with intensive operation, and applications with long planned intervals between overhauls. Industrial-grade material costs slightly more compared to the economical version, but the longer service life reduces the total maintenance cost — a comparison over 12 months of operation usually shows a clear difference in favor of DHS. Other profile types are available in the range of wipers.
Specify the rod diameter and groove dimensions (outer diameter of the housing and depth) — all three are required to identify the correct code. The groove must be thoroughly cleaned and inspected for burrs and signs of corrosion. The lip must face outward, without twisting, with attention to symmetry. Replace it preventively during every scheduled overhaul, together with the internal seals — saving on a single component does not justify the risk of a repeated overhaul. Lightly lubricate before initial startup. Compatible rod seals are available in hydraulic seals.
In the case of cylinders that operate many hours a day, the wiper must be able to withstand a large number of cycles without quickly losing its properties. DHS wipers available at Hydraulic Seals Store are designed for such industrial applications, including production lines, presses, and lifting systems with intensive use.
To order, the three main dimensions must be known: the rod diameter, housing diameter, and groove depth. The material must also be checked according to the fluid and operating environment. If you need a check before ordering, you can send us the dimensions and the application in which the DHS wiper will be used.