4D Damper; Vibration Damper; 4D20 Vibration Damper; 4D30 Vibration Dampers
The 4D series vibration dampers is used in transmission line and distrubution line to reduce vibration of line.
The heads are castings hot galvanized, the clamp is aluminum alloy, if need, the preformed arm rods is prepared.
| Model | Selection diameter of line(mm) | Diameter of messenger cable(mm) | Length(mm) | Weight(kg) |
| 4D-10 | 8;10;12 | 7 | 250 | 0.9 |
| 4D-20 | 14;16;18;22;24;28 | 9 | 330 | 1.4 |
| 4D-30 | 20;24;26;30;34 | 11 | 430 | 2.5 |




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