Features
The coupling is to connect two or more anchor hollow bars for deep holes drilling and grouting.
The anchor coupler enables direct energy end-to-end transmission between the bar and bar. It can reduce loss and ensure maximum percussive energy at the drill bit. According to the minimum load specifications, the anchor coupling is guaranteed to have at least the same ultimate breaking load as the SDA dimension.
Advantages
- The length of coupling could be adjustable.
- The anchor bolt could be elongated by using couplers.
- Unnecessary to be pulled out.
- Drilling, grouting and anchoring can be finished at the same time.
Technical Data
| Anchor Coupling | R38N/21 | R38N/19 | R38/550 | R38/600 | R38/660 |
| Outside Diameter (mm) | 52 | 52 | 52 | 52 | 52 |
| Length (mm ) | 220 | 220 | 250 | 280 | 300 |
| Thread type | ISO10208 - R38 / Left or Right |
| Type of steel | 40Cr |
| Unit Weight (kg) | 1.80 | 1.80 | 2.05 | 2.28 | 2.45 |
| Hardness | HRC 20-30 |
| Options of Anti-corrosion | Hot-dipped Galvanization / Epoxy Coating / SupCoat
*Hot-dipped Galvanization: ISO 1461. *Epoxy Coating: Bending properties up to standard ISO 1519; Impact properties up to standard ASTMD 2794; Adhesion up to standard ISO 2409:2007. *SupCoat: HDG + EC |
Anchor Bar and Accessories
Job sites
SubNumbers
10 Years - The average seniority > 10 years, which is not common in anchor manufacturing industry.
20 Years - 20 years of exporting experience, familiar with different product standards from different
customers and countries.
26 Years - 26 years of exploration and development, SupAnchor has become the No.1 SDA bar
manufacturer in Asia.
60 Countries - customers from 60 countries. Our self drilling anchor systems have been used by
customers from 50 countries all over the world, including America, Chile, Germany,
Australia India, etc.
1,500 Projects - SupAnchor’s products have been widely used in over 1500 massive projects.
Quality System
QC Procedure
SupAnchor 
has its own quality tracking systems. Every batch of anchor bar has its unique batch number, which can be tracked from raw materials till installation.
Being the No.1 exporter of SDA bars in Asia, quality control has been always SupAnchor’s biggest concern. Our quality testing equipment number ranks first on the list in anchor manufacturing industry
in Asia. It is SupAnchor’s mission to support your construction with products of high quality.
Quality Inspection Rate
| Mechanical strength test ratio | >= | 3% |
| Dimensions test ratio | = | 100% |
| Surface inspection ratio | = | 100% |
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Mcropile Sleeve Coupling For Self Drilling Anchor Bar R38/660 R Threaded Images
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