Wiper DWI
DWI wipers are protective seals with a metal insert, made from a combination of polyurethane and metal. The reinforced construction makes them suitable for heavy industrial applications, where wipers made exclusively from polymers do not provide the necessary rigidity or fail under mechanical impacts. They are used in the hydraulic cylinders of heavy-duty excavators, mining machinery, industrial presses, and drilling equipment.
Characteristics of DWI wipers and how they protect hydraulic cylinders from external contaminants
DWI wipers clean the rod with each retraction and block external contaminants — dust, mud, water, abrasive particles — before they reach the internal seals. The optimized lip profile ensures effective cleaning around the entire circumference of the rod, without excessive pressure that could wear the chrome-plated surface. You can find them in the complete catalog of wipers for hydraulic cylinders available on hydsealstore.ro.
Polyurethane structure with a metal insert: resistance, stability, and service life
The metal insert — usually steel or a light alloy — is embedded in the polyurethane body and provides the wiper with structural rigidity that a product made exclusively from polymer cannot achieve. The specific advantages are maintaining its shape under external loads, resistance to extrusion, and a longer service life under conditions of intensive use. The polyurethane provides resistance to abrasive wear and flexibility for tight contact. Also compare with BSZ wipers made of PTFE/NBR for applications with minimal friction.
Why DWI wipers are recommended for industrial equipment and machinery operating in harsh environments
Where a standard wiper would wear out quickly or deform under mechanical impacts, DWI maintains its cleaning efficiency for a significantly longer period. This reduces the frequency of maintenance interventions and equipment downtime costs. For applications with moderate contamination, compare with SCK wipers available in our catalog.
Selecting DWI wipers available in the Hydraulic Seals Store catalog
The rod diameter, housing diameter, and groove depth are checked. We keep DWI wipers in stock in the sizes used in heavy industry. We deliver quickly throughout Romania. Contact us for assistance in choosing the appropriate version.