The Bridge Construction Small Mono 30 Tons Bottle Hydraulic Jack is a versatile prestressed tensioning device, designed for easy operation. Primarily used for single-hole tensioning, it can also handle porous preloading, tensioning, and troubleshooting tasks. Compatible with various sizes of high-strength steel wire and steel strands, it’s particularly suitable for high-altitude operations due to its portability. Additionally, it can save prestressed tendon material with its 200mm reserve length for steel stranded wire tensioning.
| Type | Nominal tension force KN | Nominal oil pressure MPg | Tension piston area m2 | Return piston area m2 | Stroke for tension mm | Overall size mm | Coss-core aperture Φ mm | Mass KG | Supporing oil pump |
| YDC250QX-200 | 250 | 52 | 4.77×10-3 | 1.335×10-3 | 200 | Φ114×474 | 19 | 21.5 | zb4-500 |
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