Durable polyurethane piston seals for hydraulic systems provide high-pressure resistance, low friction, leak prevention, and long-lasting performance.
Our polyurethane piston seals are designed to provide reliable fluid control and long-lasting sealing performance in hydraulic cylinders. They help prevent hydraulic fluid leakage, maintain system pressure, and support smooth piston movement in demanding industrial and mobile equipment applications.
Manufactured from durable polyurethane, these piston seals offer excellent resistance to wear, tearing, pressure, oils, fuels, and other chemicals. Their low-friction design reduces energy consumption and minimizes wear on sealing surfaces, helping extend cylinder service life and reduce equipment downtime.
Seal profiles, materials, and dimensions can be customized according to specific equipment and operating requirements. Combining durability, dependable performance, and cost efficiency, these polyurethane piston seals are an ideal choice for OEM production, hydraulic cylinder repair, and aftermarket replacement.
| ITEM | D | d | H |
| JSPUO | 30 | 22.5 | 3.2 |
| JSPUO | 32 | 24.5 | 3.2 |
| JSPUO | 32 | 21 | 4.2 |
| JSPUO | 34 | 26.5 | 3.2 |
| JSPUO | 35 | 27.5 | 3.2 |
| JSPUO | 35 | 24 | 4.2 |
| JSPUO | 36 | 28.5 | 3.2 |
| JSPUO | 36 | 25 | 4.2 |
| JSPUO | 38 | 30.5 | 3.2 |
| JSPUO | 40 | 32.9 | 3.2 |
| JSPUO | 40 | 29 | 4.2 |
| JSPUO | 40 | 24.5 | 6.3 |
| JSPUO | 41 | 30 | 4.2 |
| JSPUO | 42 | 31 | 4.2 |
| JSPUO | 45 | 34 | 4.2 |
| JSPUO | 45 | 29.5 | 6.3 |
| JSPUO | 48 | 37 | 4.2 |
| JSPUO | 49 | 38 | 4.2 |
| JSPUO | 50 | 39 | 4.2 |
| JSPUO | 50 | 34.5 | 6.3 |
| JSPUO | 52 | 36.5 | 6.3 |
| JSPUO | 54 | 43 | 4.2 |
| JSPUO | 55 | 44 | 4.2 |
| JSPUO | 55 | 39.5 | 6.3 |
| JSPUO | 56 | 45 | 4.2 |
| JSPUO | 57 | 46 | 4.2 |
| JSPUO | 60 | 49 | 4.2 |
| JSPUO | 60 | 44.5 | 6.3 |
| JSPUO | 63 | 52 | 4.2 |
| JSPUO | 63 | 47.5 | 6.3 |
| JSPUO | 65 | 54 | 4.2 |
| JSPUO | 65 | 49.5 | 6.3 |
| JSPUO | 70 | 59 | 4.2 |
| JSPUO | 70 | 54.5 | 6.3 |
| JSPUO | 72 | 61 | 4.2 |
| JSPUO | 74 | 58.5 | 6.3 |
| JSPUO | 75 | 64 | 4.2 |
| JSPUO | 75 | 59.5 | 6.3 |
| JSPUO | 80 | 69 | 4.2 |
| JSPUO | 80 | 64.5 | 6.3 |
| JSPUO | 84 | 68.5 | 6.3 |
| JSPUO | 85 | 69.5 | 6.3 |
| JSPUO | 90 | 74.5 | 6.3 |
| JSPUO | 95 | 79.5 | 6.3 |
| JSPUO | 100 | 84.5 | 6.3 |
| JSPUO | 105 | 89.5 | 6.3 |
| JSPUO | 110 | 94.5 | 6.3 |
| JSPUO | 115 | 99.5 | 6.3 |
| JSPUO | 115 | 94 | 8.1 |
| JSPUO | 118 | 102.5 | 6.3 |
| JSPUO | 120 | 104.5 | 6.3 |
| JSPUO | 125 | 109.5 | 6.3 |
| JSPUO | 125 | 104 | 8.1 |
| JSPUO | 130 | 114.5 | 6.3 |
| JSPUO | 130 | 109 | 8.1 |
| JSPUO | 135 | 119.5 | 6.3 |
| JSPUO | 135 | 114 | 8.1 |
| JSPUO | 140 | 11.9 | 8.1 |
* All manufacturer's names, part numbers, and descriptions are used for reference purposes only. We do not imply that any part shown is the product of these manufacturers.
We ship worldwide via DHL, FedEx, UPS, TNT, and EMS for small orders, and by sea freight for bulk orders. Standard delivery time is 5–7 working days for small orders and 15–30 days for sea freight.
All products are carefully packaged in neutral packaging with foam protection to prevent damage during transit. Custom packaging with your branding is available for OEM orders.
We accept multiple payment methods for your convenience. For new customers, we typically require 100% advance payment for small orders. For established partnerships, we offer flexible terms including 30% deposit with balance before shipping.
