Steel Strap For Mining
1.Exceptional Tensile Strength & Load-Bearing Capacity
Engineered for extreme conditions, featuring outstanding tensile strength and yield strength. Effectively withstands immense roof pressure and rock stress in mining environments, preventing rock fall and collapse while providing robust support for underground operations.
2.Superior Corrosion Resistance & Long Service Life
Typically treated with high-quality galvanized or special alloy coatings, it effectively resists corrosion and rust caused by underground moisture, water accumulation, and acidic environments. This significantly extends product lifespan while reducing maintenance costs and safety risks associated with frequent replacements.
3.Flexible Compatibility & Easy Installation
Available in diverse specifications, these products can be customized for various support designs (e.g., integrated with rock bolts, rock cables, or wire mesh), ensuring strong adaptability. Their design facilitates transportation, on-site cutting, and rapid installation, effectively boosting support efficiency while reducing labor and time costs.
Product Overview：
Mine steel bands, also known as W-shaped steel bands or mining W-shaped support plates, are indispensable key components in mine roadway support systems. They form an active support system alongside anchor bolts, anchor cables, and metal mesh, reinforcing the roof and sidewalls of underground mine tunnels in coal mines, metal mines, and similar environments. Their unique W-shaped cross-section design provides higher bending moment of inertia and strength than flat steel plates of equivalent weight. This effectively disperses roof pressure, prevents rock fall, and significantly enhances underground operational safety.
Core Features and Advantages：
High-Strength Load-Bearing: Manufactured through cold-rolling high-strength steel, it exhibits exceptional tensile strength and bending resistance. This enables effective Mine Rock Pressure Bearing Capacity, preventing anchor bolts/cables from detaching from rock masses and transforming point support into reliable surface support.
Superior Stiffness and Toughness: The unique W-shaped (or similar corrugated) cross-section delivers an optimal strength-to-weight ratio. It ensures necessary rigidity while maintaining sufficient toughness to accommodate minor rock mass deformations without brittle fracture.
Outstanding Surface Corrosion Protection: Typically treated with hot-dip galvanization, the thick and uniform zinc coating delivers long-lasting corrosion and rust resistance, significantly extending service life in humid, harsh underground environments.
Convenient and Efficient Installation: Pre-set standard spacing for anchor bolt holes facilitates rapid positioning and installation. The steel band itself is easy to cut and bend, allowing on-site adjustments based on actual conditions, greatly enhancing support work efficiency.
Technical Specifications：
Parameter | Typical Specifications/Description |
Material | Q235B, Q345B (A36, SS400 or equivalent specifications of high-strength low-alloy steel) |
Strength Grade | 345 MPa, 410 MPa or higher |
Surface Treatment | Hot-dip galvanizing (Hot-dip galvanized), Galvanized layer thickness ≥ 60μm |
Width | 180mm, 200mm, 220mm, 250mm, 280mm, 300mm |
Thickness | 2.5mm, 2.75mm, 3.0mm, 3.5mm |
Length | 2.0m, 2.2m, 2.4m, 2.6m, 3.0m, 3.2m, 3.6m, 4.0m (Customization available) |
Hole Spacing | 600mm, 700mm, 800mm, 1000mm (Customizable upon request) |
Application Scenarios：
Coal Mines: Roof support for roadways, support for working face haulage ways, roadway rehabilitation.
Metal and Non-Metal Mines: Roof and sidewall support for underground roadways in gold, iron, copper, and other mines.
Tunnel Engineering: Initial support for railway tunnels, highway tunnels, and hydraulic tunnels.
Other Underground Projects: Support systems for large underground chambers, slope reinforcement, and related applications.
