HPF High Pressure Piston Seal is designed for mining hydraulic supports and heavy-duty cylinders, featuring excellent extrusion resistance, high-pressure performance, and long service life.
Item NO.:
HPFOrder(MOQ):
50Payment:
T/TProduct Origin:
ChinaShipping Port:
ShanghaiProduct Description
HPF high-pressure piston seal is a double-acting piston seal developed for demanding hydraulic applications, particularly in mining hydraulic supports and heavy-duty hydraulic cylinders. It is designed for pistons subjected to pressure from both sides and is especially suitable for large-diameter piston applications.
HPF composite piston seal features a full-coverage anti-extrusion support ring, providing enhanced resistance to extrusion and deformation under high-pressure conditions. Under static sealing conditions, the pressure rating is up to 120 MPa, helping maintain reliable sealing performance in demanding mining environments.
With its compact profile and wear-resistant sealing design, HPF is a reliable choice for hydraulic systems requiring high pressure resistance, durability, and consistent sealing performance.
Technical Data
| Parameter | Value |
| Operating temperature | -20°C to +110°C |
| Working Pressure | ≤ 120 MPa |
| Surface speed | ≤ 0.3 m/s |
| Material | PU+NBR+POM |
| Design type | Mining Piston Seal |
| Unit system | Metric |
| Working Fluids | Water-soluble hydraulic fluid HFA, water-in-oil hydraulic fluid HFB |
Typical Applications
Product Parameter Table
| Designation | Rod diameter | Housing groove diameter | Housing groove width | Primary sealing element |
| [mm] | [mm] | [mm] | ||
| HPF 140×123×21 M8002 | 123 | 140 | 21 | PU+NBR+POM |
| HPF 160×143×20 M8002 | 143 | 160 | 20 | PU+NBR+POM |
| HPF 180×163×25 M8002 | 163 | 180 | 25 | PU+NBR+POM |
| HPF 200×183×25 M8002 | 183 | 200 | 25 | PU+NBR+POM |
| HPF 210×190×24 M8002 | 190 | 210 | 24 | PU+NBR+POM |
| HPF 230×205×30 M8002 | 205 | 230 | 30 | PU+NBR+POM |
| HPF 250×225×30 M8002 | 225 | 250 | 30 | PU+NBR+POM |
| HPF 260×235×30 M8002 | 235 | 260 | 30 | PU+NBR+POM |
| HPF 270×245×29 M8002 | 245 | 270 | 29 | PU+NBR+POM |
| HPF 270×245×37 M8002 | 245 | 270 | 37 | PU+NBR+POM |
| HPF 280×255×30 M8002 | 255 | 280 | 30 | PU+NBR+POM |
| HPF 290×265×32 M8002 | 265 | 290 | 32 | PU+NBR+POM |
| HPF 300×275×30 M8002 | 275 | 300 | 30 | PU+NBR+POM |
| HPF 305×280×30 M8002 | 280 | 305 | 30 | PU+NBR+POM |
| HPF 320×290×35 M8002 | 290 | 320 | 35 | PU+NBR+POM |
| HPF 345×315×35 M8002 | 315 | 345 | 35 | PU+NBR+POM |
| HPF 360×330×37 M8002 | 330 | 360 | 37 | PU+NBR+POM |
| HPF 380×350×37 M8002 | 350 | 380 | 37 | PU+NBR+POM |
| HPF 400×370×35 M8002 | 370 | 400 | 35 | PU+NBR+POM |
| HPF 450×410×37 M8002 | 410 | 450 | 37 | PU+NBR+POM |
| HPF 460×420×37 M8002 | 420 | 460 | 37 | PU+NBR+POM |
| HPF 500×470×42 M8002 | 470 | 500 | 42 | PU+NBR+POM |
HPF Piston Seal
| Material code | M8002 |
| Speed | Up to 0.3 m/s (1.0 ft/s) |
| Temperature range | -20°C to +110°C(–4 to +230 °F) |
| Dimension standards | Some sizes fit seal housings in accordance with ISO 6195-B:2013. |
| Size list | → Metric |
| Additional information | → Metric Mining Piston Seal |
| Maximum values of application parameters (e.g. speed, temperature) should not be applied continuously nor simultaneously. | |
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