XQV YDC250QX Hollow Mono Stressing Jack – Hydraulic Hollow Jack for Single Strand Tensioning
Compact Hollow Jack for Post‑Tensioning & Prestressed Concrete
The XQV YDC250QX hollow mono stressing jack is a lightweight, single‑strand post‑tensioning jack designed for efficient prestressing of concrete structures. Its hollow piston allows the strand to pass through the centre, enabling single‑strand tensioning for precast beams, bridge girders, and post‑tensioned slabs. With a compact body and high‑performance hydraulic system, it delivers precise tensioning force while remaining easy to handle in confined spaces.
| Model | Nominal tension force (kN) | Nominal oil pressure (MPa) | Tension piston area (m²) | Tensioning stroke (mm) | Return piston area (m²) | Dimension (mm) | Center hole diameter (mm) | Weight (kg) | Matched oil pump |
|---|---|---|---|---|---|---|---|---|---|
| YDC250QX-150 | 250 | 52 | 4.77×10⁻² | 150 | 1.335×10⁻² | Φ114×374 | Φ19 | 20 | ZB4-500 |
| YDC250QX-200 | 250 | 52 | 4.77×10⁻² | 200 | 1.335×10⁻² | Φ114×424 | Φ19 | 25 | ZB4-500 |
| Category | Description |
|---|---|
| Applications (with YJM15, YJM13 bonded anchorages, M anchorage systems) |
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| Key Advantages |
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Notably, this jack is particularly suitable for high‑altitude construction environments due to its portability. With a compact volume and lightweight design (typically weighing between several kilograms and approximately ten kilograms), it can be easily handheld or operated by a single person, making it highly adaptable to construction sites with restricted space.
※ The parameters are for reference only. Subject to change without notice. Final interpretation right belongs to our company.
- 1. Support sleeve nut
- 2. Regulating sleeve (washer)
- 3. Support sleeve
- 4. Support ring
- 5. Anchor ring
- 6. Special wedge
- 7. Spring seat
- 8. Spring
- 9. Connecting pipe
- 10. Cylinder
- 11. Piston
- 12. Pull rod
- 13. Tubing
- 14. Nozzle seat
- 15. Plug
- 16. Setscrew nut A/B nozzle (positioning nut / A/B oil nozzle)
Workshop
Our Manufacturing Base – Liuzhou Xuanqiao Prestressed Machinery Co., Ltd.</p >
Located in Liuzhou, Guangxi – a key industrial hub for prestressed technology – our modern workshop covers over 10,000㎡. We operate CNC machining centers, automated assembly lines, and precision testing equipment to ensure consistent quality.</p >
Every batch of raw material is inspected, and finished products (anchors, jacks, pumps, ducts) are tested in our in‑house laboratory for mechanical performance and pressure resistance. We are certified under ISO 9001:2015 and comply with FIP international standards.</p >
Annual capacity: 6 million anchor holes and 1,000+ sets of hydraulic equipment. Our experienced technicians and engineers follow strict SOPs to guarantee reliability.</p >
We maintain sufficient raw material inventory and finished goods for fast delivery. Continuous investment in equipment and training keeps us at the forefront of prestressed manufacturing – because a strong factory means reliable products and long‑term trust.</p >
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