1. Improvement of material performance
When traditional expansion bolts rust and corrode in a humid environment, when chemical anchor bolts encounter a special temperature difference and lose adhesion. Drop-in carbon steel anchor-this anchoring system made of carbon steel forging, the surface is hot-dip galvanized, not easy to rust and corrosion.
Drop-in carbon steel anchors are different from the fragile balance of exposed anchor bolts that rely on friction. The embedded design forms a bite with concrete through the pre-embedded threaded sleeve, and its load transfer efficiency is greatly improved.
2. Mechanics of anchoring mechanism
Unlike traditional expansion anchor bolts that rely on friction, drop-in carbon steel anchors form mechanical interlocking through the rear expansion bottom design. Its unique internal compression structure expands the sleeve outward by tightening the nut, tightly bites with the concrete, and avoids the attenuation of the bearing capacity of traditional anchor bolts due to micro cracks in the substrate.
3. Environmental adaptability and convenience
Adaptation to special working conditions: The thermal expansion coefficient (11.7×10⁻⁶/℃) matches the concrete height, and the deformation difference is small under -40℃ to 70℃ environment, avoiding anchor failure caused by temperature difference.
Quick installation: No need to pre-expand or wait for chemical glue to cure, the six-axis robot can achieve ±0.5mm implantation accuracy, and the construction efficiency is increased by 3 times.
Advantages in humid environments: The corrosion rate of the galvanized layer in a humid environment is lower than that of ordinary carbon steel anchors, and it is durable and not easy to corrode.
4. Economic and environmental protection
Cost optimization: Compared with 304 stainless steel anchors, the material cost is reduced by 40%, and the unit price of galvanized carbon steel anchors is only 1/3 of that of stainless steel
Green process: Some products use bio-based PLA coating, which has a better natural degradation rate and saves energy and reduces emissions.