HRB Rod Buffer Seal is a high-performance hydraulic cylinder buffer seal made from polyurethane and nylon. Designed to absorb pressure spikes, protect primary rod seals, and provide excellent wear resistance in heavy-duty hydraulic applications.
Item NO.:
HRBOrder(MOQ):
50Payment:
T/TProduct Origin:
ChinaShipping Port:
ShanghaiProduct Description
HRB Rod Buffer Seal is a compact sealing solution designed for hydraulic cylinder sealing systems in construction and mobile machinery. Installed as a buffer seal, it helps protect the primary rod seal by absorbing pressure spikes and transferring trapped pressure back into the hydraulic system, improving overall sealing performance and extending seal service life.
Manufactured from high-performance polyurethane and reinforced with a nylon backup ring, the HRB offers excellent wear resistance, impact resistance, and anti-extrusion capability. As a reliable Hydraulic Rod Buffer Seal, it is particularly suitable for heavy-duty hydraulic applications operating under high pressure and demanding working conditions.
Technical Data
| Parameter | Value |
| Operating temperature | -35°C to +110°C |
| Working Pressure | ≤ 50 MPa |
| Surface speed | ≤ 0.5 m/s |
| Material | PU+Nylon |
| Design type | Rod Buffer Seal |
| Unit system | Metric |
Advantages
Product Parameter Table
| Designation | Rod diameter | Housing groove diameter | Housing groove width | Primary sealing element |
| [mm] | [mm] | [mm] | ||
| HRB 40X55.5X6.3 M2005 | 40 | 55.5 | 6.3 | PU+Nylon |
| HRB 45X60.5X6.3 M2005 | 45 | 60.5 | 6.3 | PU+Nylon |
| HRB 50X65.5X6.3 M2005 | 50 | 65.5 | 6.3 | PU+Nylon |
| HRB 60X75.5X6.3 M2005 | 60 | 75.5 | 6.3 | PU+Nylon |
| HRB 70X85.5X6.3 M2005 | 70 | 85.5 | 6.3 | PU+Nylon |
| HRB 75X90.5X6.3 M2005 | 75 | 90.5 | 6.3 | PU+Nylon |
| HRB 80X95.5X6.3 M2005 | 80 | 95.5 | 6.3 | PU+Nylon |
| HRB 85X100.5X6.3 M2005 | 85 | 100.5 | 6.3 | PU+Nylon |
| HRB 100X115.5X6.3 M2005 | 100 | 115.5 | 6.3 | PU+Nylon |
| HRB 120X135.5X6.3 M2005 | 120 | 135.5 | 6.3 | PU+Nylon |
| HRB 125X140.5X6.3 M2005 | 125 | 140.5 | 6.3 | PU+Nylon |
| HRB 130X145.5X6.3 M2005 | 130 | 145.5 | 6.3 | PU+Nylon |
| HRB 135X150.5X6.3 M2005 | 135 | 150.5 | 6.3 | PU+Nylon |
| HRB 140X155.5X6.3 M2005 | 140 | 155.5 | 6.3 | PU+Nylon |
| HRB 150X165.5X6.3 M2005 | 150 | 165.5 | 6.3 | PU+Nylon |
| HRB 155X170.5X6.3 M2005 | 155 | 170.5 | 6.3 | PU+Nylon |
| HRB 160X175.5X6.3 M2005 | 160 | 175.5 | 6.3 | PU+Nylon |
| HRB 170X185.5X6.3 M2005 | 170 | 185.5 | 6.3 | PU+Nylon |
| HRB 175X190.5X6.3 M2005 | 175 | 190.5 | 6.3 | PU+Nylon |
| HRB 180X195.5X6.3 M2005 | 180 | 195.5 | 6.3 | PU+Nylon |
| HRB 185X200.5X6.3 M2005 | 185 | 200.5 | 6.3 | PU+Nylon |
| HRB 190X205.5X6.3 M2005 | 190 | 205.5 | 6.3 | PU+Nylon |
| HRB 200X221X8 M2005 | 200 | 221 | 8 | PU+Nylon |
| HRB 210X231X8 M2005 | 210 | 231 | 8 | PU+Nylon |
HRB Rod Seal
| Material code | M2005 |
| Speed | Up to 0.5 m/s (1.6 ft/s) |
| Temperature range | –35 to +110 °C (–31 to +230 °F) |
| Dimension standards | Some sizes fit seal housings in accordance with ISO 6195-B:2013. |
| Size list | → Metric |
| Additional information | → Rod Buffer Seal |
| Maximum values of application parameters (e.g. speed, temperature) should not be applied continuously nor simultaneously. | |
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