HRN Hydraulic Breaker Rod Seal delivers excellent low-pressure sealing and outstanding pump-back oil return performance. Featuring an integrated pressure relief groove, it provides reliable sealing for hydraulic breakers, demolition equipment, and heavy-duty hydraulic systems.
Item NO.:
HRNPayment:
T/TProduct Origin:
ChinaShipping Port:
ShanghaiProduct Description
HRN Hydraulic Breaker Rod Seal is a high-performance polyurethane rod seal specifically designed for hydraulic breakers and other heavy-duty hydraulic equipment. It features an optimized interference fit between its outer diameter and the housing groove, providing excellent low-pressure sealing performance and enhanced sealing reliability.
Engineered with an optimized oil return groove, the HRN hydraulic breaker rod seal provides excellent pump-back capability by returning residual hydraulic oil to the hydraulic system while reducing excessive back pressure. This design helps protect the sealing lip, extends service life, and delivers reliable sealing performance under demanding, high-impact operating conditions.
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Advantages
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Technical Data
| Working Pressure | Operating Temperature | Surface speed |
| ≤ 35 MPa(No backup ring) | -30℃~+100℃(P2001) -20℃~+120℃(P2112) |
≤ 0.5 m/s |
Product Parameter Table
| Designation | Rod diameter | Housing groove diameter | Housing groove width | Primary sealing element |
| [mm] | [mm] | [mm] | ||
| HRN 40X50X7 | 40 | 50 | 7 | PU |
| HRN 42X52X7 | 42 | 52 | 7 | PU |
| HRN 45X55X7 | 45 | 55 | 7 | PU |
| HRN 50X60X7 | 50 | 60 | 7 | PU |
| HRN 53X63X7 | 53 | 63 | 7 | PU |
| HRN 60X70X7 | 60 | 70 | 7 | PU |
| HRN 70X80X7 | 70 | 80 | 7 | PU |
| HRN 75X85X7 | 75 | 85 | 7 | PU |
| HRN 80X90X7 | 80 | 90 | 7 | PU |
| HRN 85X100X10 | 85 | 100 | 10 | PU |
| HRN 100X115X10 | 100 | 115 | 10 | PU |
| HRN 125X140X10 | 125 | 140 | 10 | PU |
| HRN 133X143X7 | 133 | 143 | 7 | PU |
| HRN 135X150X10 | 135 | 150 | 10 | PU |
| HRN 135.8X150.9X10.6 | 135.8 | 150.9 | 10.6 | PU |
| HRN 136X146X7 | 136 | 146 | 7 | PU |
| HRN 140X150X7 | 140 | 150 | 7 | PU |
| HRN 140X155X10 | 140 | 155 | 10 | PU |
| HRN 150X165X10 | 150 | 165 | 10 | PU |
| HRN 155X165X7 | 155 | 165 | 7 | PU |
| HRN 155X170X10 | 155 | 170 | 10 | PU |
| HRN 160X175X10 | 160 | 175 | 10 | PU |
| HRN 170X180X7 | 170 | 180 | 7 | PU |
| HRN 175X190X10 | 170 | 190 | 10 | PU |
| HRN 180X200X13 | 180 | 200 | 13 | PU |
| HRN 185X205X13 | 185 | 205 | 13 | PU |
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