Hydraulic Radial Seals Angle Cut Wear Rings Kzt with Bronze PTFE slide ring seal
1. Application and properties
Generally used in oil cylinders for construction machinery, walking machinery, metallurgical machinery, and other harsh working environments with a lot of dust. Especially in hydraulic systems, when there are more impurities in the hydraulic oil for various reasons, it is necessary to consider installing a dirt-exclusion ring to protect the sealing elements.
The antifouling ring is used in combination with the piston seal and the anti-wear ring to prevent the oil in the cylinder from being damaged by impurities with greater hardness. At the same time, the main seal and the sealing space are isolated, which can effectively prevent the diesel effect from ablating the main seal to protect the main seal. When used in combination with the piston rod seal and metal bushing, it can prevent damage to the piston rod. At the same time, all ports and oil pressure bypass grooves can prevent the accumulation of oil pressure.
Small friction coefficient, it does not affect the performance of the oil cylinder.
It can be used in special working conditions such as extremely high speed, extremely low speed, and micro-stroke
With an open structure, it is easy to install.
2. Standard material
Filled PTFE
3. Working conditions
Working conditions | |||
Diameter Range | Temperature Range°C | Speed | Medium |
20~2000mm | -200~250℃ | 15m/s | Hydraulic oil, flame retardant liquid, water and otehrs |

4. Related Dimensions
R1=0.2~0.5,R2=0.2~1. The specific value is selected according to the size of the section of the seal and the remaining values are listed in the Installation Dimensions table.
5. Marking method
Mark with the dimensions of installation groove
For example: KZT100×92×6.3
6. Installation Dimensions
| Bore Dia. | Groove Dia. | Groove Width | Part No. | Bore Dia. | Groove Dia. | Groove Width | Part No. | ||
| D | d | L | D | d | L | ||||
| 70 | 62 | 4.2 | KZT70×4.2 | 160 | 152 | 8.1 | KZT160×8.1 | ||
| 75 | 67 | 4.2 | KZT75×4.2 | 170 | 162 | 8.1 | KZT170×8.1 | ||
| 80 | 72 | 4.2 | KZT80×4.2 | 180 | 172 | 8.1 | KZT180×8.1 | ||
| 85 | 77 | 4.2 | KZT85×4.2 | 190 | 182 | 8.1 | KZT190×8.1 | ||
| 90 | 82 | 4.2 | KZT90×4.2 | 200 | 192 | 8.1 | KZT200×8.1 | ||
| 80 | 72 | 6.3 | KZT80×6.3 | 100 | 92 | 9.7 | KZT100×9.7 | ||
| 85 | 77 | 6.3 | KZT85×6.3 | 105 | 97 | 9.7 | KZT105×9.7 | ||
| 90 | 82 | 6.3 | KZT90×6.3 | 110 | 102 | 9.7 | KZT110×9.7 | ||
| 95 | 87 | 6.3 | KZT95×6.3 | 115 | 107 | 9.7 | KZT115×9.7 | ||
| 100 | 92 | 6.3 | KZT100×6.3 | 120 | 112 | 9.7 | KZT120×9.7 | ||
| 105 | 97 | 6.3 | KZT105×6.3 | 125 | 117 | 9.7 | KZT125×9.7 | ||
| 110 | 102 | 6.3 | KZT110×6.3 | 130 | 122 | 9.7 | KZT130×9.7 | ||
| 115 | 107 | 6.3 | KZT115×6.3 | 135 | 127 | 9.7 | KZT135×9.7 | ||
| 120 | 112 | 6.3 | KZT120×6.3 | 140 | 132 | 9.7 | KZT140×9.7 | ||
| 125 | 117 | 6.3 | KZT125×6.3 | 145 | 137 | 9.7 | KZT145×9.7 | ||
| 130 | 122 | 6.3 | KZT130×6.3 | 150 | 142 | 9.7 | KZT150×9.7 | ||
| 135 | 127 | 6.3 | KZT135×6.3 | 160 | 152 | 9.7 | KZT160×9.7 | ||
| 140 | 132 | 6.3 | KZT140×6.3 | 170 | 162 | 9.7 | KZT170×9.7 | ||
| 145 | 137 | 6.3 | KZT145×6.3 | 180 | 172 | 9.7 | KZT180×9.7 | ||
| 150 | 142 | 6.3 | KZT150×6.3 | 190 | 182 | 9.7 | KZT190×9.7 | ||
| 160 | 152 | 6.3 | KZT160×6.3 | 200 | 192 | 9.7 | KZT200×9.7 | ||
| 170 | 162 | 6.3 | KZT170×6.3 | 90 | 82 | 15 | KZT090×15 | ||
| 180 | 172 | 6.3 | KZT180×6.3 | 95 | 87 | 15 | KZT095×15 | ||
| 190 | 182 | 6.3 | KZT190×6.3 | 100 | 92 | 15 | KZT100×15 | ||
| 100 | 92 | 8.1 | KZT100×8.1 | 105 | 97 | 15 | KZT105×15 | ||
| 105 | 97 | 8.1 | KZT105×8.1 | 110 | 102 | 15 | KZT110×15 | ||
| 110 | 102 | 8.1 | KZT110×8.1 | 115 | 107 | 15 | KZT115×15 | ||
| 115 | 107 | 8.1 | KZT115×8.1 | 120 | 112 | 15 | KZT120×15 | ||
| 120 | 112 | 8.1 | KZT120×8.1 | 125 | 117 | 15 | KZT125×15 | ||
| 125 | 117 | 8.1 | KZT125×8.1 | 130 | 122 | 15 | KZT130×15 | ||
| 130 | 122 | 8.1 | KZT130×8.1 | 135 | 127 | 15 | KZT135×15 | ||
| 135 | 127 | 8.1 | KZT135×8.1 | 140 | 132 | 15 | KZT140×15 | ||
| 140 | 132 | 8.1 | KZT140×8.1 | 145 | 137 | 15 | KZT145×15 | ||
| 145 | 137 | 8.1 | KZT145×8.1 | 150 | 142 | 15 | KZT150×15 | ||
| 150 | 142 | 8.1 | KZT150×8.1 | ||||||