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Wiper Seals
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Precision Hydraulic Wiper Seals & Scraper Rings Manufacturer

MingYu Sealing Technology designs and manufactures industrial-grade wiper seals, dust scrapers, and excluder rings engineered to protect hydraulic and pneumatic systems from environmental contamination. Manufactured in accordance with ISO 9001 and IATF 16949 standards, our precision-molded dynamic wipers wipe away abrasive grit, moisture, mud, and debris from retracting rods, preventing catastrophic cylinder barrel scoring and internal seal failure.

Target Operating Environments

Heavy Construction Machinery

Excavator booms, wheel loader lift cylinders, and dump truck tipping rams exposed to abrasive soil.

Industrial Hydraulic Presses

Stamping presses, injection molding clamp rams, and high-frequency linear actuators.

Agricultural & Mobile Equipment

Tractor steering linkages, harvester lift cylinders, and forestry equipment handling wet particulates.

Wiper Material Selection & Mechanical Properties

Material Type Temp. Range Scraping Performance & Media Resistance Hardness (Shore A/D)
Polyurethane (PU / TPU) -35°C to +100°C Industry standard with extreme tear resistance, dynamic cut defense, and high tensile recovery 90 - 95 Shore A
Filled PTFE (Bronze/Carbon) -60°C to +200°C Extremely low friction, zero stick-slip behavior, and chemical scraping in high-speed applications 55 - 65 Shore D
NBR (Nitrile Rubber) -30°C to +110°C High flexibility for low-pressure pneumatic rods and broad mineral oil compatibility 80 - 90 Shore A
FKM (Fluoroelastomer) -20°C to +200°C Resistant to high operating temperatures, harsh synthetic fluids, and bio-hydraulic oils 80 - 90 Shore A

Need Custom Hydraulic Wiper & Scraper Profiles?

We provide custom lip geometry development, metal-caged scrapers, and snap-in wiper rings for global cylinder builders.

1. Groove & Rod Specs
ISO 6195 / Custom Dimensions
2. Scraper Lip Design
Single vs. Double Lip Analysis
3. Rapid Tooling
Mold Prototyping in 7-15 Days
4. Serial Production
IATF 16949 Audited Delivery

Wiper Seals

Are You Looking for a Trusted Manufacturer of Custom Seals?
Get in Touch with us.
We are your preferred partner for high quality, reliable custom seals. Let's work together on your next project.
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  Phone: +86-18556882545
   Email:  julie@mingyu.net.cn
  WeChat: 18556882545
  WhatsApp:  +1 949 378 6965
   Add: No.15 Gugang Road, Taicang City, Jiangsu Province, China
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