XQV Wedge – Prestressed Concrete Anchor Wedge for Strand Fixing

Precision-Engineered Self-Locking Wedge for Post-Tensioning Systems – Reliable Load Transfer & Anti-Slip Performance

Product Introduction

The XQV Wedge is a key component of prestressed anchorages, mainly used for anchoring prestressed tendons, such as steel strands of YJM15, YJM13 and other series. By cooperating with the anchor plate, it transfers the tensile force of the prestressed tendons to the concrete structure to achieve the application of prestress to the structure.

According to different structures and uses, it is divided into working grips and tool grips. The working grip remains permanently in the anchorage to anchor the prestressed tendons; the tool grip is temporarily used during the tensioning process to fix the steel strand to the tensioning equipment, and can be removed for repeated use after tensioning is completed.

Key Features & Advantages

🔧 High Anchorage Efficiency
Anchorage coefficient ηa ≥95%, ensuring reliable load transfer and minimal slip.

⚙️ Precision Hardness
Hardness HRC58-62, manufactured from 20CrMnTi for excellent wear resistance and durability.

🔄 Working & Tool Types
Available as permanent working grips or reusable tool grips for post-tensioning operations.

🧪 Corrosion Protection
Surface treatment provides corrosion resistance for long-term performance in various environments.

Parts Specification

Component Name	Specification	Materials	Surface Treatment	PAG Method	Standard
Wedge	Anchorage coefficient ηa≥95%, Hardness: HRC58-62, Type: 2/3pcs	20CrMnTi	Corrosion Protection	cardboard box or wooden case	GB/T14370-2015, JT/T329-2010, TB/T3193, ISO, CE, ASTM, BS…
Retaining Ring	–	Q235	–	cardboard box or wooden case	GB/T14370-2015, JT/T329-2010, TB/T3193, ISO, CE, ASTM, BS…

* Custom specifications and packaging available upon request.

Application

Widely used in stress anchoring and structural reinforcement for the following fields:

Bridge Engineering: Post-tensioning anchoring of box girders, T-beams, and cable-stayed bridge tower anchorage zones. The wedge ensures reliable lock-off of prestressing strands under dynamic loads.

Infrastructure & Large-Scale Structures: Anchoring of prestressed tendons in viaducts, overpasses, and high-speed railway track slabs. Provides permanent load transfer with minimal long-term losses.

Tunnel Engineering: Primary and secondary lining support for highway and railway tunnels. The working wedge remains embedded, resisting ground pressure and water infiltration.

Dam & Hydraulic Structures: Anchoring of prestressed rock bolts and tendon bundles in concrete gravity dams, arch dams, and lock chambers. Suitable for underwater and high-humidity environments.

Hydraulic Tunnel Support: Prestressed lining anchoring for penstocks, spillways, and diversion tunnels. The tool wedge allows repeated tensioning operations during construction.

Slope Stabilization & Landslide Remediation: Ground anchor systems for retaining walls and landslide-prone cuttings. The wedge’s high anchorage efficiency (ηa≥95%) ensures immediate load take-up.

Nuclear Power & Heavy Industry: Prestressed concrete containment vessels and heavy machinery foundations. Wedges conform to international standards (ISO, CE, ASTM) for critical applications.

Workshop

Our Manufacturing Base – Liuzhou Xuanqiao Prestressed Machinery Co., Ltd.

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.

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.

Annual capacity: 6 million anchor holes and 1,000+ sets of hydraulic equipment. Our experienced technicians and engineers follow strict SOPs to guarantee reliability.

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.