Leffer Hydraulic Casing Oscillators For Cranes
Updated: 07.05.2026
When concrete piles of very large diameter or great depth are required, it is often more economical to excavate the pile using a pile grab which is hanging and operated by a crawler crane. To drive the casing and to extract it after concreting a hydraulic casing oscillator is required which is mounted in front of the crawler crane.
If the crane has sufficient power, it can also operate the oscillator, otherwise a separate power pack is required.
| Model | Casing Ø | Lifting force | Torque |
|---|---|---|---|
| mm | N | kNm | |
| VRM 1300 | 620 - 1,300 | 1,530 | 1,660 |
| VRM 1500 | 750 - 1,500 | 2,050 | 2,900 |
| VRM 2000 | 1,180 - 2,000 | 2,650 | 4,110 |
| VRM 2200 | 1,500 - 2,200 | 2,650 | 4,520 |
| VRM 2500 | 1,800 - 2,500 | 5,150 | 9,500 |
| VRM 3000 | 2,000 - 3,000 | 9,000 | 13,500 |
| VRM 3300 | 2,500 - 3,300 | 10,869 / 11,780 | 19,900 / 23,000 |
| VRM 3500 | 2,500 - 3,500 | 10,860 | 22,000 |
| VRM 3800 | 2,800 - 3,800 | 8,310 / 8,310 / 11,780 | 15,800 / 22,000 / 31,000 |