Hebei Jinwo Machinery Technology Co., Ltd. is one of the leading manufacturers and suppliers of kr series piston seal for hydraulic cylinder piston application in excavator and construction machinery in China. With abundant experience, we warmly welcome you to buy bulk durable kr series piston seal for hydraulic cylinder piston application in excavator and construction machinery in stock here from our factory. All customized products are with high quality and competitive price. Contact us for quotation.
KR Series Piston Seal for Hydraulic Cylinder Piston Application in Excavator and Construction Machinery is designed for superior performance in heavy-duty environments. Featuring a durable polyurethane sliding ring and an elastic energizer, it ensures excellent wear resistance and reliable high-pressure sealing. This professional solution is ideal for maintaining efficiency and longevity in demanding hydraulic systems.
General performance parameters
|
Parameter |
Specifications |
|
Material |
Polyurethane Sliding Ring and NBR Energizer |
|
Temp. |
-35°C to +110°C |
|
Work Pressure (Max. Pressure) |
≤ 30 MPa |
|
Run Speed (Max. Speed) |
≤ 0.5 m/s |
|
Media |
Mineral Oil Based Hydraulic Fluids |
|
Structure Type |
Double Acting Piston Seal |
|
Application |
Excavator and Construction Machinery |
Specifications Table
| Specifications and Model (D×d×H) | Outer Diameter (D) mm | Inner Diameter (d) mm | High (H) mm | Compatible Devices |
| KR 40 25 6.3 | 40.0 | 25.0 | 6.3 | Compact servo cylinders |
| KR 45 30 6.3 | 45.0 | 30.0 | 6.3 | Compact construction equipment |
| KR 50 35 6.3 | 50.0 | 35.0 | 6.3 | Power steering cylinders |
| KR 55 40 6.3 | 55.0 | 40.0 | 6.3 | Hydraulic motor assemblies |
| KR 60 45 6.3 | 60.0 | 45.0 | 6.3 | Industrial fixtures |
| KR 63 48 6.3 | 63.0 | 48.0 | 6.3 | Standard hydraulic cylinders |
| KR 65 50 6.3 | 65.0 | 50.0 | 6.3 | Excavator actuators |
| KR 70 55 6.3 | 70.0 | 55.0 | 6.3 | Construction machinery |
| KR 75 60 6.3 | 75.0 | 60.0 | 6.3 | Agricultural machinery hydraulic systems |
| KR 80 65 6.3 | 80.0 | 65.0 | 6.3 | Industrial hydraulic power units |
| KR 85 70 6.3 | 85.0 | 70.0 | 6.3 | Medium-sized loaders |
| KR 90 75 6.3 | 90.0 | 75.0 | 6.3 | High-pressure pump seals |
| KR 95 80 6.3 | 95.0 | 80.0 | 6.3 | Heavy-duty hydraulic cylinders |
| KR 100 85 6.3 | 100.0 | 85.0 | 6.3 | Mining machinery |
| KR 110 90 8.1 | 110.0 | 90.0 | 8.1 | Large lifting cylinders |
| KR 120 100 8.1 | 120.0 | 100.0 | 8.1 | Industrial filter press equipment |
| KR 125 105 8.1 | 125.0 | 105.0 | 8.1 | High-load industrial equipment |
| KR 140 120 8.1 | 140.0 | 120.0 | 8.1 | Heavy-duty lifting equipment |
| KR 150 130 8.1 | 150.0 | 130.0 | 8.1 | Large-scale hydraulic systems |
| KR 160 140 8.1 | 160.0 | 140.0 | 8.1 | Specialized industrial engineering |
| Supports non-standard customization | Can be made according to drawings | Professional Customization | Various materials | Meet rigorous demands |
Product Description
🔧 Technical Performance
The KR Series Piston Seal is designed for hydraulic cylinder piston applications in excavators and construction machinery. It delivers excellent sealing, low friction, and wear resistance under high pressure and heavy-duty conditions, ensuring smooth operation and extended service life.
🏭 Manufacturing & Quality Control
The KR Series Piston Seal is produced with advanced molding technology and high-quality materials. Strict inspections for dimensions, materials, and sealing performance ensure stable quality, precise fitting, and reliable durability.
🌍 Trade & Supply Solutions
We provide flexible supply solutions for global customers with stable production, customized options, and efficient logistics. Our professional service ensures reliable delivery and long-term cooperation.
⭐ Product Advantages
The KR Series Piston Seal offers excellent durability, sealing reliability, and compatibility with hydraulic systems. It helps reduce leakage, improve equipment efficiency, and support demanding construction machinery applications.
Why Choose Jinwo - Precision Integration for Hydraulic Systems
⭐ Quality Assurance
Jinwo provides reliable sealing products with strict quality control. Every product is carefully tested to ensure stable performance, durability, and consistent quality for global customers.
🔧 Manufacturing Expertise
With advanced manufacturing technology and professional experience, Jinwo delivers precision sealing solutions that meet the requirements of hydraulic, automotive, and industrial applications.
🌍 Supply Capability
Jinwo offers stable production capacity, flexible customization, and efficient logistics services to ensure timely delivery and reliable support for worldwide partners.
🤝 Customer Commitment
Jinwo focuses on customer needs by providing competitive products, professional service, and long-term cooperation solutions to help customers achieve business success.
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