Single Hole Anchor

Product Overview

The single hole anchor is a core anchoring component for prestressing engineering, composed of a high-strength black protective outer cylinder and built-in threaded anchor ring. It is specially designed for tensioning and anchoring single steel strands and prestressing tendons. This product adopts an integrally formed wear-resistant shell matched with a precision self-locking threaded structure, which firmly locks prestressing steel bars through mechanical clamping force to effectively transfer tension stress, featuring functions of tension locking, stress retention and anti-loosening. Treated with heat treatment and anti-corrosion coating, it is suitable for various prestressing construction scenarios such as bridges, slope support, pipe galleries and precast components. With easy installation and stable anchoring performance, it serves as the standard matching anchoring part for small-scale prestressing tension systems.

Core Advantages

1. High-strength wear-resistant outer cylinder with long service life
2. Standard built-in threaded hole compatible with universal tensioning equipment
3. Anti-corrosion and moisture-proof for complex construction environments
4. Compact and lightweight structure for flexible installation
5. Standardized production with customizable mass production

Product Specification Table

Application Scenarios

Rock and Soil Slope Support Works
Used for tensioning and anchoring anchor bolts on mountain slopes, foundation pit slopes and embankment reinforcement. Matched with single anchor bolts to disperse rock and soil stress and prevent landslides.

Precast Concrete Components
Applied to precast floor slabs, small precast beams and prestressed concrete piles to lock single bundles of prestressing tendons and boost the overall tensile strength of components.

Municipal Underground Pipe Galleries
Used for prestressing reinforcement of side walls and anti-floating anchor construction in underground pipe galleries, realizing long-term anchoring under humid underground conditions to resist underground water buoyancy and lateral soil pressure.

Small Bridges and Guardrail Reinforcement
Suitable for prestressing reinforcement of rural small bridges, bridge guardrails and reinforcement maintenance of old bridges. The compact single-hole anchor fits partial reinforcement tension work.

Foundation Pit and Anti-floating Works
Matched with single anchor bolts for basement anti-floating bolts and deep foundation pit support anchor bolts to balance building uplift stress.

Steel Structure Prestressing Reinforcement
Used for tensioning small prestressing bundles in factory steel structure reinforcement to improve load-bearing capacity of steel components.

Structural Details

1. Outer Wear-resistant Bearing Cylinder
2. Built-in Split Locking Anchor Ring
3. High-precision Standard Internal Thread Hole
4. Layered Stress-bearing Structural Design

FAQ

Q1: What causes steel strand slipping of single hole anchors?

1.Worn anchor ring threads or deformed split slots lead to insufficient clamping force; 2. Oil stains or rust on steel strands reduce friction; 3. Excessively fast tensioning causes instantaneous overload. Solutions: Replace new anchors, clean oil stains on steel strands, and perform graded tension at a constant speed.

Q2: Can this single hole anchor be used underwater for a long time?

Standard models have basic anti-rust performance. For long-term underwater or strongly corrosive water environments, customized hot-dip galvanized versions with higher anti-corrosion grades are recommended to avoid failure caused by long-term immersion and rust.

Q3: Can one anchor fit steel strands of different diameters?

No. Each single hole anchor matches a fixed specification of steel strands with corresponding inner diameter and clamping size. Mixing models will lead to anchoring failure and strand breakage risks. Please select products strictly according to the specification table.

Q4: How to handle loose anchors after tensioning?

A pressure holding period is required after tensioning; direct unloading without pressure holding will easily cause loosening. If loosening occurs, perform secondary tensioning to the designed stress, and check whether the split pieces of the anchor ring are cracked and replace damaged products.

Q5: Can you provide third-party inspection reports?

Mechanical performance test reports and factory certificates are available for all standard single hole anchors to meet project acceptance document requirements.

Contact Us for Customized Solutions

Our factory has independent production and processing capacity for all types of prestressing single hole anchors with sufficient stock of standard models, while supporting customization of all non-standard specifications. We can adjust the outer cylinder size, height and internal thread specifications according to the steel strand size and designed tension load of your project, and customize differentiated anti-corrosion treatments including blackening, hot-dip galvanizing and epoxy coating. We also supply full sets of supporting construction accessories such as anchor clips, tensioning jacks and prestressing steel strands. Our professional technical team can provide model selection consultation, on-site tensioning technical guidance and complete factory acceptance documents. If you have demands for sample delivery, quotation calculation or customized solutions for special projects, feel free to contact us anytime. We will tailor a one-stop prestressing anchoring solution matching your construction environment and project requirements.