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FITSCH’ main products is Fittings for hydraulic tube/hose and various industrial usage; Assembly of hydraulic hose and tube fabrication; Accessories such as clamps for hose and tube, non-return valve, hydraulic quick coupling, testing point coupling etc, we also offer custom fittings for customer’s OEM demand. Our product can be found on and around everything that moves such as fluid and gas handling, hydraulics, pneumatic etc.

Anchorage, Grip, Coupler for Prestressing Tendon

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Premium Post-Tensioning Systems: Anchors, Wedges & Couplers for Superior Structural Performance From Ningbo Yihang Machinery Parts Co.,Ltd

GB/T 14370-Compliant Post Tension Anchors, Wedges & Couplers

Our post tensioning systems—including post tension anchors, post tensioning wedges, and couplers—meet China's National Standard GB/T 14370 for prestressed concrete structures. Engineered for reliability in bonded, unbonded, and retard-bonded applications, these critical components transfer tensile forces in internal/external post-tensioning systems, cable-stayed bridges, and specialized construction.

Yihang passed ISO 9001 quality management system certification, for machinery parts(pre-stressed anchor parts) automobile and motorcycle hardware manufacturing.

ISO 9001 ISO 9001 quality management system certification Ningbo Yihang Machinery Parts Co.,Ltd

Core Components of Post-Tensioning Systems

1. Post Tension Anchors (Tension/Fixed End)

Tension End Anchors: Features anchor plates and post tensioning wedges (clamp type) to permanently lock strands. Passes 2 million fatigue cycles (GB/T 14370).

Fixed End Anchors: Uses barrel-and-wedge or extrusion systems for compact spaces.

Couplers: Connects strands in segmental construction with 100% force transfer efficiency.

2. Multi-Standard Compliance

Certified for global projects:

China: GB/T 14370-2015, JT/T 329 (Highways), TB/T 3193 (Rail),JGJ 85-2002

International: ASTM A416 (USA), BS 4447 (UK), FIP Recommendations

Applications & Engineering Advantages

1. Critical Infrastructure Solutions

Bridges: Segmental box girders, external post-tensioning systems for cable-stayed bridges

Buildings: Unbonded slabs, transfer beams, nuclear containment vessels

Rehabilitation: Structural strengthening with replaceable post-tensioning tendons

2. Performance Guarantees

≥95% anchorage efficiency (static load tests)

Corrosion protection: Hot-dip galvanized or epoxy-coated systems

Friction loss ≤3% during stressing

Why Choose Our Post-Tensioning Products?

1. Precision Manufacturing & Testing

Dimensional accuracy by CNC machines

Full-scale fatigue testing (2 million cycles)

Custom post tension anchor systems for Φ12.7–21.8mm strands

2. Technical Superiority

Feature	Our GB/T 14370 Systems	Conventional Systems
Anchorage Efficiency	≥95%	85–90%
Fatigue Life	2 million cycles	1 million cycles
Strand Compatibility	All standard sizes	Limited range

Innovation in Post-Tensioning Technology

Smart Systems: IoT-enabled anchors for real-time force monitoring

Sustainable Solutions: Recyclable epoxy-coated tendons & anchors

Global Integration: Dual compliance with GB/T 14370 and FIP standards

Project Highlight: our post tensioning wedges and couplers (GB/T 14370 certified) for 19,000kN external tendons.

Engineered for Excellence. Trusted Worldwide.
As a leading manufacturer of post tensioning systems, we deliver certified anchors, wedges, and couplers for bridges, high-rises, and infrastructure projects across 40+ countries.