XQV Extrusion Sleeve – Extruded Socket for Dead‑End Anchorage

The XQV extrusion sleeve is a core component for anchoring steel strands or reinforcing bars in prestressed concrete structures. Its structure and function are specifically designed to achieve reliable load transfer. The component mainly consists of an extrusion sleeve body and a compression spring. During construction, a hydraulic pump drives an extruder (GYJ series) to apply a mechanical extrusion process, forcing the sleeve body to deform plastically and form a tight mechanical interlocking with the steel strand – significantly enhancing the anchoring force. After the tensioning operation is completed, the extrusion sleeve effectively transmits the load to the concrete member, eliminating risks such as anchor slip or failure and ensuring the stability of the structural anchoring system.

The XQV extrusion sleeve is commonly used in PT‑type and P‑type dead‑end anchorage systems, significantly improving construction efficiency and structural durability. It demonstrates irreplaceable advantages especially in complex working conditions such as underground engineering and marine structures. Typical applications include:

• PT‑type / P‑type Dead‑End Anchorages: Fixed end anchoring for post‑tensioned concrete beams, slabs and bridge girders.
• Underground Engineering: Tunnel lining, rock bolting and foundation pit support where space is limited and reliability is critical.
• Marine Structures: Wharves, piers, offshore platforms – corrosion‑protected sleeve ensures long service life.
• Precast Concrete Components: Precast beams, sleepers, and piles where factory‑applied extrusion sleeves speed up production.

※ Parameters for reference only. Custom sizes and coatings available. Final interpretation right belongs to our company.