Contact Info
- Tel: +86-311-87813582
- Fax: +86-311-87829648
- Email: Kaiwork@126.com
- Whatsapp: +86 86 138 3318 2035
- Add: No.345, Youyi North Street, Shijiazhuang City, Hebei Province, China.
Critical-Load Anchorage Hardware Grade. Engineered in strict compliance with international post-tensioning standards, our 3-piece matched-set anchorage wedges for 12.7 mm (0.5-inch) 7-wire PC strands combine high-carbon alloy steel integrity with precision-milled internal gripping teeth, delivering ultimate slip-resistance, load transfer, and certified reliability for advanced structural engineering.
3-Piece Prestressed Anchorage Wedges | High-Precision Grip for 12.7 mm (0.5 inch) Monostrand
​Designed for absolute load-bearing security under extreme post-tensioned stressing cycles. Every batch adheres to rigorous metallurgical and geometric benchmarks.
|
Technical Parameter |
Specification Value |
Governing Standard / Design |
|
Compatible Strand Size |
12.7 mm (0.500 inch / 1/2") 7-Wire PC Strand |
ASTM A416 / ISO 6934-4 |
|
Wedge Configuration |
3-Piece Matched Set (Symmetrical Segments) |
PTI / ISO 15630-3 |
|
Material Composition |
High-Carbon Alloy Steel (Specialized Heat-Treated) |
Forged & Machined Metallurgical Grade |
|
Surface Hardness |
58 to 62 HRC (Optimized Core Toughness & Wear Resistance) |
Rockwell Hardness Standard |
|
Internal Gripping Profile |
Precision-Milled Helical Teeth (Non-Destructive Bite) |
Maximum Friction & Zero Slip |
|
Application Type |
Flat-Plate Anchor Head / Stressing End & Dead End |
Post-Tensioning Systems |
· ​Symmetrical 3-Piece Load Distribution: The 3-piece segment design divides the radial clamping force equally around the 12.7 mm strand, eliminating localized crushing and ensuring uniform, secure bite.
· ​Precision-Milled Internal Teeth: Engineered with specialized helical teeth profiles that bite securely into the high-tensile steel wire without shearing, providing certified slip-resistance under ultimate breaking loads.
· ​Advanced Thermal Hardening: Subjected to controlled carburizing and heat treatment processes to achieve a surface hardness of 58–62 HRC, guaranteeing exceptional wear and fatigue resistance.
· ​Full Batch Traceability & QC: Manufactured under strict ISO 9001 quality frameworks. Each production lot undergoes rigorous proof-loading, hardness testing, and dimensional inspection.
​Essential mechanical locking components deployed across diverse civil and structural engineering sectors:
· ​Commercial & Residential Floor Slabs: Post-tensioned flat plates, waffle slabs, and high-rise transfer structures utilizing 0.5" tendons.
· ​Bridge & Transportation Infrastructure: Precast beam anchorages, segmental box girders, and internal/external tendon stressing ends.
· ​Specialized Geotechnical Works: Foundation anchorages, rock slopes, and high-capacity soil nail tensioning systems.
​Q: Are these 3-piece wedges compatible with standard 12.7mm anchor casting heads?
A: Yes. They are precision-machined to fit standard 12.7 mm (0.5") anchor plates, trumpets, and stressing chairs used globally in post-tensioning construction.
​Q: Can these wedges be reused after tensioning?
A: No. Prestressing wedges are designed for single-use (one-time permanent anchoring). Once seated under high tension, the teeth undergo permanent engagement and must not be reused for safety reasons.
​Q: What is the standard export packaging and corrosion protection?
A: Wedges are coated with an anti-rust oil film, packed in matching sets (3 pieces per set), sealed in heavy-duty moisture-proof bags, and boxed inside robust export cartons to prevent transit corrosion.
