Self Drilling Anchor (SDA)
CTA Bar (Composite Threaded Anchor Bar)
The CTA Bar (Composite Threaded Anchor Bar) is an advanced high-tensile threaded rock anchor engineered for heavy-duty earth retention, underground cavern arching, tieback anchors, and foundation underpinning. Manufactured with precision cold-formed continuous thread profiles, CTA bars deliver unyielding pullout resistance and high shear capability.
TECHNICAL DATA & SPECIFICATIONS
Certified engineering tolerances, metallurgical grades, and load metrics for heavy geotechnical installations.
CTA Bar (Composite Threaded Anchor Bar) — Technical Data Sheet
Quality Assurance Standard: ISO 10208 / EN 14199
| # | Technical Metric | Certified Specification |
|---|---|---|
| 01 |
Anchor Type
|
Composite Threaded Anchor (CTA) / Continuous Thread Tie Rod |
| 02 |
Material Specification
|
Quenched & Tempered Micro-Alloy Structural Steel |
| 03 |
Thread Form
|
Coarse Continuous Thread / Rope Thread |
| 04 |
Tensile Strength
|
500 kN – 1200 kN |
| 05 |
Yield Point
|
400 kN – 950 kN |
| 06 |
Bar Diameters
|
25 mm, 32 mm, 38 mm, 51 mm, 76 mm |
| 07 |
Thread Hand
|
Left-Hand (LH) / Right-Hand (RH) |
| 08 |
Corrosion Coating
|
Hot-Dip Galvanized / Epoxy / Bare Steel |
| 09 |
Applications
|
Permanent Tiebacks, Shoring Walls, Rock Fall Barriers, Deep Basements |
CTA bars provide exceptional flexibility in challenging geotechnical earthworks. Unlike smooth or rebar tendons, the coarse rope thread profile maximizes load transfer to surrounding grout columns while facilitating fast on-site extension.
Self Drilling Anchor Hollow Bar Technical Parameters (ISO 10208 / EN 10083-1)
| Specification | Unit | R 25N | R 32L | R 32N | R 32S | R 38N | R 51L | R 51N | T 76N | T 76S |
|---|---|---|---|---|---|---|---|---|---|---|
| Outside Diameter | mm | 25.00 | 32.00 | 32.00 | 32.00 | 38.00 | 51.00 | 51.00 | 76.00 | 76.00 |
| Internal Diameter | mm | 14.00 | 22.00 | 20.00 | 18.50 | 22.00 | 36.00 | 33.00 | 51.00 | 47.00 |
| Cross Sectional Area | mm² | 292 | 292 | 292 | 416 | 597 | 800 | 1020 | 2410 | 2800 |
| Ultimate Load (Ft) | kN | 200 | 260 | 280 | 360 | 500 | 550 | 800 | 1600 | 1900 |
| Yield Load (Fy) | kN | 150 | 200 | 230 | 280 | 400 | 450 | 630 | 1200 | 1500 |
| Unit Weight | kg/m | 2.30 | 2.30 | 2.30 | 4.10 | 4.50 | 8.00 | 9.40 | 19.50 | 23.00 |
| Thread Standard | - | ISO 10208 | ISO 10208 | ISO 10208 | ISO 10208 | ISO 10208 | ISO 10208 | ISO 10208 | ISO 10208 | ISO 10208 |
ENGINEERED FOR EXTREMES.
READY TO ASSIST.
Ground Floor, Plot, No 42 B, Street No. 5, Rajinder Nagar Industrial Area, Rajendra Nagar, Sahibabad, Ghaziabad, Uttar Pradesh 201007