XQV YH3 Onion Jack – Hydraulic Strand Swaging Press for Prestressed Concrete
High‑Efficiency Swaging Machine for Mushroom‑Head Anchor (Dead‑End Anchorage)
The XQV YH3 Onion Jack is a specialized hydraulic swaging press used to form a pear‑shaped or mushroom‑head bulk at the fixed end of prestressing steel strands (PC strand). This swaged end creates a self‑anchoring mechanism through mechanical interlocking with the surrounding concrete (aided by spiral reinforcement or steel mesh). It effectively serves as a dead‑end anchor without requiring a separate P‑type anchorage.
Driven by a hydraulic pump station, the jack applies a precisely controlled axial thrust to swage the strand end. The hydraulic system ensures stable and adjustable pressure, allowing accurate crimping force for different strand diameters (e.g., φ15.24 mm, φ12.7 mm). By simply replacing the clamping wedges, the same machine can handle various strand specifications, offering excellent versatility.
Advantages: Compact, lightweight, cost‑effective (eliminates separate anchor hardware), fast operation, and consistent swaging quality.
| Parameter | Value |
|---|---|
| Nominal jacking force (kN) | 34 |
| Theoretical top pressure (kN) / Thrust | 35.3 |
| Nominal oil pressure (MPa) | 50 |
| Tension piston area (m²) | 0.7068×10⁻² (≈70.68 cm²) |
| Return piston area (m²) | 0.4521×10⁻² (≈45.21 cm²) |
| Return mode | Hydraulic pressure |
| Top pressure stroke (mm) | 70 |
| Swaging diameter (mm) | Φ95 |
| Overall dimension (L×W×H) (mm) | 530 × 160 × 230 |
| Weight (kg) | 20 |
🛠️ Self‑Anchored Swaging
Forms a mushroom head that anchors directly in concrete, eliminating separate dead‑end anchors.
⚙️ Precise Hydraulic Control
Steady, adjustable pressure ensures uniform swaging quality for different strand sizes.
🔄 Wide Adaptability
Compatible with φ15.24 mm, φ12.7 mm strands by changing wedges; also works with other diameters.
⚡ Fast & Efficient
Quick swaging cycle improves productivity, ideal for batch prefabrication.
💼 Lightweight & Portable
Only 20 kg, easy to carry and operate in confined or elevated workspaces.
- Precast concrete components: Anchoring of non‑tensioned ends in pipe piles, bridge girders, slabs, etc.
- Post‑tensioned prestressed structures: Fixed‑end treatment for beam ends, slabs, and other elements.
- Geotechnical engineering: Anchoring of prestressed tendons and rock bolts for slope stabilization, tunnel support, and foundation reinforcement.
- General prestressed concrete: Where cost‑effective, reliable dead‑end anchorage is required.
※ The parameters are for reference only. Subject to change without notice. Final interpretation right belongs to our company.
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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