In modern underground construction and slope stabilization, efficiency isn't just a goal — it's a necessity. The H22 Hollow Hexagonal Anchor Bolt represents an advanced all - in - one geotechnical solution that seamlessly integrates drilling, grouting, and anchoring into a single, high-performance process.

The standout feature of the H22 system is its hexagonal geometry. Unlike standard round rods, the H22 profile offers superior contact surface for drilling rigs, ensuring:

• Zero Slippage: Maximum torque transmission for tough rock formations
• Extreme Stability: Prevents deflection during high-intensity, deep-hole drilling
• Universal Compatibility: Fits most handheld and small hydraulic anchor rigs currently on the market

Deep hole drilling often faces two critical challenges : heat and chip accumulation. The H22's longitudinal hollow channel allows for high pressure air or liquid cooling. This " internal artery " flushes out rock chips in real - time , protecting your drill bits from overheating and extending the service life of your equipment.

Crafted from premium high-strength alloy steel, each H22 rod undergoes rigorous quenching and tempering (Q/T) heat treatment. The result is uniform internal stress distribution that delivers:

• Excellent tensile and yield strength
• High fatigue resistance for seismic or vibrating environments
• Reliable bonding between grout and surrounding strata

The versatility of the H22 hollow bolt makes it the preferred choice for demanding applications:

• Tunneling , Mining: Perfect for stabilizing fractured surrounding rock in roadways and stopes
• Infrastructure Safety: Reinforcing highway and railway slopes to prevent catastrophic collapses
• Urban Construction: Controlling soil deformation in deep foundation pit supports