XQV YCWB Hollow Multi Stressing Jack – Hydraulic Multi‑Strand Post‑Tensioning Jack
High‑Capacity Hollow Jack for Simultaneous Tensioning of Multiple Strands
The XQV YCWB series jack is the 4th generation new-type lightweight jack, successfully developed based on the YCWE series with further structural and dimensional optimization. It features small volume, light weight, excellent sealing performance, high strength and reliability, and strong universality – making it the upgraded product for the YCWE series. The jack maintains good stability and reliable performance under high pressure, effectively guaranteeing construction quality. At the same time, its strong durability and low maintenance costs help customers save costs and improve construction efficiency.
| Model | Rated Tension Force (kN) | Rated Oil Pressure (MPa) | Tension Piston Area (×10⁻³ m²) | Tensioning Stroke (mm) | Weight (kg) | Min. Working Space (mm) | Overall Size (mm) |
|---|---|---|---|---|---|---|---|
| YCWB100(V) | 1000 | 52 | 19.2 | 200 | 70 | — | — |
| YCWB200(V) | 2000 | 53 | 37.7 | 200 | 120 | — | — |
| YCWB300(V) | 3000 | 52 | 57.7 | 200 | 180 | — | — |
※ The above parameters are for reference only. Please contact us for exact data of your required model.
The YCWB jack requires a certain minimum working space for installation and operation. The key external dimensions (ΦD and B) are marked in the structural diagram.
| Parameter | Description |
|---|---|
| ΦD (Cylinder outer diameter) | According to jack model |
| B (Length of jack body) | According to jack model |
| Minimum working space | Refer to the dimensional drawing for each model |
| Component | Material | Surface Treatment | Standard |
|---|---|---|---|
| Adjusting nut | High‑strength steel | — | GB/T14370‑2015, JT/T329‑2010, TB/T3193, ISO, CE, ASTM, BS |
| Plug | Steel | — | |
| Oil cylinder | 45# steel | Chrome plating | |
| Piston | 45# steel | — | |
| Sealing plate | Special alloy | — | |
| Clamp ring | High‑strength steel | — |
- 1. Adjusting nut 2. Plug
- 3. Oil cylinder 4. Piston
- 5. Cross‑core plug 6. Sealing plate
- 7. Clamp ring
| Model | Rated force (kN / tf) |
Rated pressure (MPa) |
Piston area (×10⁻² m²) |
Return pressure (MPa) |
Penetrating hole (mm) |
Stroke (mm) |
Weight (kg) |
Dimension (mm) ΦD×L |
Check size (mm) Posit. nut / Piston |
||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| kN | tf | Tension | Return | ΦD×L | Posit. nut | Piston | |||||||
| YCW70B | 706 | 72 | 51 | 1.38 | 0.24 | ≤25 | Φ63 | 200 | 55 | Φ188×345 | Φ116 | Φ110 | |
| YCW100B | 973 | 99 | 51 | 1.91 | 0.78 | ≤25 | Φ78 | 200 | 64 | Φ218×350 | Φ151 | Φ130 | |
| YCW120B | 1210 | 123 | 55 | 2.2 | 0.78 | ≤25 | Φ78 | 200 | 70 | Φ230×366 | Φ151 | Φ130 | |
| YCW150B | 1511 | 154 | 51 | 3.02 | 1.6 | ≤25 | Φ102 | 200 | 106 | Φ280×366 | Φ170 | Φ156 | |
| YCW200B | 2003 | 204 | 53 | 3.78 | 1.96 | ≤25 | Φ110 | 200 | 135 | Φ315×372 | Φ196 | Φ176 | |
| YCW250B | 2480 | 253 | 54 | 4.59 | 2.80 | ≤25 | Φ140 | 200 | 162 | Φ350×380 | Φ210 | Φ186 | |
| YCW300B | 3000 | 306 | 52 | 5.77 | 3.13 | ≤25 | Φ146 | 200 | 217 | Φ385×375 | Φ232 | Φ216 | |
| YCW350B | 3497 | 357 | 54 | 6.48 | 3.46 | ≤25 | Φ175 | 200 | 260 | Φ412×400 | Φ252 | Φ252 | |
| YCW400B | 3956 | 404 | 52 | 7.61 | 4.60 | ≤25 | Φ175 | 200 | 270 | Φ432×400 | Φ252 | Φ252 | |
| YCW450B | 4493 | 458 | 53 | 8.48 | 4.87 | ≤25 | Φ180 | 200 | 280 | Φ440×400 | Φ270 | Φ270 | |
| YCW500B | 4942 | 504 | 49 | 10.05 | 4.77 | ≤25 | Φ196 | 200 | 380 | Φ490×423 | Φ302 | Φ302 | |
| YCW600B | 6050 | 617 | 50 | 12.10 | 6.83 | ≤25 | Φ196 | 200 | 440 | Φ530×443 | Φ310 | Φ302 | |
| YCW650B | 6499 | 663 | 49.5 | 13.13 | 6.29 | ≤25 | Φ240 | 200 | 580 | Φ575×465 | Φ320 | Φ320 | |
- Bridge Construction: Post‑tensioning of precast girders, segmental box girders, continuous beams, and cable‑stayed bridges.
- Building Structures: Tensioning of beams, slabs, transfer plates, and foundation works in high‑rise buildings.
- Civil Engineering: Ground anchors, rock bolts, tie‑back systems, and dam prestressing.
- Industrial Structures: Prestressed concrete silos, tanks, cooling towers, and heavy equipment foundations.
※ 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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