Standard PU Wipers /Scrapers
Standard PU Wipers / Scrapers: Active Debris Removal and System Protection
We manufacture high-performance polyurethane wiping elements designed to exclude contaminants and safeguard your hydraulic and pneumatic cylinders.
Whether your equipment operates in a clean industrial facility or a harsh outdoor environment with heavy dirt and moisture, choosing the correct scraper profile is the critical first line of defense against fluid contamination and seal failure.
Below is an overview of our standard PU wiper profiles, engineered with advanced anti-abrasion lips and robust structural geometries to ensure maximum rod protection and extend the overall lifespan of your fluid power systems.
Classification by Lip Design
Single-Lip PU Wipers: Engineered for primary contaminant exclusion. The single precision-cut wiping lip efficiently scrapes dust, dirt, and moisture from the retracting piston rod, protecting internal components while allowing residual oil film to return to the cylinder.
Double-Lip PU Wipers: Designed with a primary scraping lip and a secondary internal sealing lip. This dual-action profile prevents external debris ingress while acting as a redundant seal to minimize fluid leakage and regulate rod lubrication.
Classification by Structural Design
Snap-In PU Wipers (Homogeneous): Manufactured entirely from high-performance polyurethane. These flexible, non-reinforced scrapers are designed for quick, snap-in installation into standard closed housing grooves.
Metal-Cased PU Wipers (Metal-Clad): Features a highly abrasion-resistant PU wiping lip permanently bonded to a rigid carbon steel or stainless steel outer case. Designed for press-fit installation in open grooves, ensuring superior seating stability and preventing dislodgment under severe conditions.
Classification by Duty & Application
Standard-Duty Wipers: Optimized for general industrial hydraulics, pneumatic cylinders, and standard manufacturing machinery operating in environments with moderate dust and moisture.
Heavy-Duty Scrapers: Featuring reinforced, aggressive lip geometries designed to aggressively clear dried mud, ice, weld slag, and heavy industrial grit. Highly recommended for mobile hydraulics, earthmoving equipment, and extreme agricultural applications.
| Classification Standard | Product Type | Detailed Features & Applications |
|---|---|---|
| Classification by Lip Design[cite: 5] | Single-Lip PU Wipers[cite: 5] | Engineered for primary contaminant exclusion[cite: 5]. The single precision-cut wiping lip efficiently scrapes dust, dirt, and moisture from the retracting piston rod, protecting internal components while allowing residual oil film to return to the cylinder[cite: 5]. |
| Double-Lip PU Wipers[cite: 5] | Designed with a primary scraping lip and a secondary internal sealing lip[cite: 5]. This dual-action profile prevents external debris ingress while acting as a redundant seal to minimize fluid leakage and regulate rod lubrication[cite: 5]. | |
| Classification by Structural Design[cite: 6] | Snap-In PU Wipers (Homogeneous)[cite: 6] | Manufactured entirely from high-performance polyurethane[cite: 6]. These flexible, non-reinforced scrapers are designed for quick, snap-in installation into standard closed housing grooves[cite: 6]. |
| Metal-Cased PU Wipers (Metal-Clad)[cite: 6] | Features a highly abrasion-resistant PU wiping lip permanently bonded to a rigid carbon steel or stainless steel outer case[cite: 6]. Designed for press-fit installation in open grooves, ensuring superior seating stability and preventing dislodgment under severe conditions[cite: 6]. | |
| Classification by Duty & Application[cite: 7] | Standard-Duty Wipers[cite: 7] | Optimized for general industrial hydraulics, pneumatic cylinders, and standard manufacturing machinery operating in environments with moderate dust and moisture[cite: 7]. |
| Heavy-Duty Scrapers[cite: 7] | Featuring reinforced, aggressive lip geometries designed to aggressively clear dried mud, ice, weld slag, and heavy industrial grit[cite: 7]. Highly recommended for mobile hydraulics, earthmoving equipment, and extreme agricultural applications[cite: 7]. |
Heavy Construction & Mining
Standard PU wipers and scrapers act as high-pressure hydraulic seals engineered to withstand extreme shock loads, pressure spikes, and abrasive environments in heavy-duty earthmoving equipment.
Industrial Automation
These scrapers serve as precision pneumatic sealing solutions designed for low-friction and high-speed repetitive operations in modern manufacturing assembly lines.
Agricultural Machinery
They provide robust fluid power profiles built to resist UV, harsh weathering, and constant exposure to abrasive particles in open-field environments.
Fluid & Pressure Control
Standard PU wipers work alongside custom molded seals and heavy-duty O-rings formulated for reliable dynamic fluid control and leak prevention in critical valve systems.
Need a Custom Standard PU Wipers / Scrapers Solution?
“Whether you need standard profiles or non-standard dimensions, our dedicated senior designer ensures rapid drawing output and precise prototyping. We provide seamless support from initial concept to full-scale production.”
My apologies for the stubborn translation loop earlier—I have it strictly in English for you now.
📐Direct Expert Review Skip the bureaucratic red tape. You will work directly with our dedicated senior designer to review your CAD drawings or reverse-engineer your physical samples, ensuring rapid and accurate technical communication.
🧪Material Optimization We don’t just copy dimensions; we optimize for performance. We help you select the exact elastomer or polymer (such as specialized FKM, NBR, or PTFE) to withstand your specific chemical fluids and thermal environments.
⚡Rapid CNC Prototyping Keep your downtime to an absolute minimum. Utilizing advanced CNC turning technology, we can manufacture high-precision custom prototypes quickly, without the need for expensive upfront mold tooling fees.
