Henan Zongxiang Heavy Industry Import & Export Co., Ltd., operating under the renowned ZongXiang Steel Group (established in 1997), has once again demonstrated its strong presence in the global mining support industry. The company recently completed the export of a substantial batch of 39mm split set stabilizers (also known as friction bolts or split set rock bolts) to a mining project in Colombia. This shipment underscores ZongXiang's growing footprint in Latin America and its commitment to providing reliable, high-quality ground support solutions for underground mining operations.

The 39mm split set is one of the most popular sizes in ZongXiang's product lineup, widely used for most underground mining applications due to its optimal balance of strength, ease of installation, and cost-effectiveness. Manufactured from high-strength carbon steel (typically Q235B or Q355B grades), these friction stabilizers feature a longitudinally slotted tubular design. When driven into a pre-drilled borehole slightly smaller than the tube's outer diameter (usually 33-35mm for 39mm split sets), the bolt compresses, exerting immediate radial pressure and frictional forces along the entire length of contact with the rock wall. This mechanism, combined with the bearing force from a domed or flat plate, places the surrounding rock under tri-axial stress, effectively preventing loosening, sliding, or collapse in weak or fractured ground conditions.

Key advantages of ZongXiang's 39mm split sets include:

• Instant ground support upon installation (no curing time required, unlike resin grouted bolts)
• Simple and rapid installation using standard percussion drills with a compatible driver tool
• High load-bearing capacity and excellent performance in dynamic or seismic-prone environments
• Cost savings through minimal components (tube + plate) and no need for specialized grouting equipment
• Customizable lengths (typically 1.2m to 3.0m or more) and wall thicknesses (1.5mm–2.3mm) to suit specific mine requirements

In Colombia, where underground coal, gold, and other mineral mining operations face challenging geological conditions—including soft rock, high stress zones, and potential seismic activity—these split sets provide critical roof and wall reinforcement. They are commonly deployed in development headings, production stopes, and access tunnels to enhance overall mine stability and miner safety. The exported batch will support ongoing tunneling and extraction activities at one or more Colombian mining sites, contributing to improved productivity and reduced downtime from ground control issues.

ZongXiang's export success to Colombia aligns with its broader international strategy. The company has supplied mining support products to numerous countries, including Indonesia, Russia, India, Pakistan, and others in Southeast Asia, Africa, and beyond. With four specialized production facilities dedicated to mine tunnel support items, large in-stock availability, and competitive factory-direct pricing, ZongXiang ensures timely delivery and consistent quality. The 39mm split sets are part of a comprehensive portfolio that also includes 33mm, 42mm, 46mm, and 47mm variants, along with complementary accessories like domed plates, drivers, wire mesh, U-steel arches, and cable bolts.

This recent shipment to Colombia highlights ZongXiang's reliability as a trusted partner for mining companies worldwide. As global demand for efficient, safe, and economical rock stabilization solutions continues to rise, ZongXiang remains at the forefront, delivering innovative products that stand up to the toughest underground environments.