非常重要的是缓冲密封件能使主密封得到适当的润滑。同时，能避免过多压力受困于缓冲密封件与活塞杆密封件之间，hallite的缓冲密封件设计具有能够防止这种现象可能出现的特点。
活塞杆缓冲密封
活塞杆缓冲密封主要是为了保护活塞杆主密封受到压力冲击的影响。
 416Max pressure300 Bar Temp range-30°C 100°C Max speed4m/sec It has a bronze filled PTFE ring with a pre-loaded lip energised by an O-Ring. The seal is designed to protect the primary rod seal from pressure spikes in the cylinder. | 416 |
| Max pressure | 300 Bar |
| Temp range | -30°C to 100°C |
| Max speed | 4m/sec |
 653Max pressure700 Bar Temp range-45°C 110°C Max speed1m/sec The Hallite 653 single-acting rod buffer seal is designed to be used in conjunction with a high-performance rod seal, such as the Hallite 605 and 621, to protect the primary seal from shock pressure loading and high frequency pressure spikes in the hydraulic system. | 653 |
| Max pressure | 700 Bar |
| Temp range | -45°C to 110°C |
| Max speed | 1m/sec |
 660Max pressure700 Bar Temp range-45°C 110°C Max speed1m/sec The Hallite 660 single-acting rod buffer seal is designed to be used in conjunction with high-performance rod seal, such as the Hallite 605, 663, or 673, to protect the primary seal from shock pressure loading and high frequency pressure spikes in the hydraulic system. | 660 |
| Max pressure | 700 Bar |
| Temp range | -45°C to 110°C |
| Max speed | 1m/sec |
 SRBMax pressure600 Bar Temp range-45°C 200°C Max speed4m/sec The Hallite SRB is a single-acting, low-friction rod buffer seal, designed to be utilized in conjunction with a primary pressure seal. The buffer is designed from proprietary Armorlene® material face ring paired with a specially profiled energizer and an integrated anti-extrusion ring. | SRB |
| Max pressure | 600 Bar |
| Temp range | -45°C to 200°C |
| Max speed | 4m/sec |
 SRSMax pressure400 Bar Temp range-45°C 200°C Max speed4m/sec The Hallite SRS is a single-acting, low-friction rod buffer seal, designed to be utilized in conjunction with a primary pressure seal. The buffer is designed from proprietary Armorlene® material face ring paired with a specially profiled energizer. | SRS |
| Max pressure | 400 Bar |
| Temp range | -45°C to 200°C |
| Max speed | 4m/sec |
