1.Technical Specifications
| Size | Material | Weight kg/m | Section Area cm2 | Height mm | Thickness mm | Width mm | Support Thickness mm |
| 25 | Q275B / 20MnK | 24.95 | 31.79 | 120 | 15 | 130 | 6.3 |
| 29 | Q275B / 20MnK | 29 | 37 | 124 | 16 | 150 | 7.2 |
| 36 | 20MnK | 35.87 | 45.7 | 138 | 17 | 171 | 7.8 |
| 40 | 20MnK | 40.05 | 51.02 | 149 | 20.2 | 171 | 8.5 |
Tolerance reference from the source table:
2. Materials
U-shaped steel supports can be produced from:
The material can be selected according to roadway pressure, tunnel size, support spacing and engineering design requirements.
3. Applications
U-Shape Steel Support is commonly used for underground mining support and civil tunnel support constructions.
It can be applied for:
4. Advantages
U-Shape steel support can provide strong and stable arch structure with good bearing capacity. Can fit with changes in ground pressure to ensure safety of roadway. Especially suitable for supporting in complex mining environment.
As an alternative for timber support, U-Shape steel supports have higher strength and longer service life, with a better reuse value. They are also convenient for installation and recovery, reducing maintenance workload and material resource consumption.
5. Customized Options
We can also manufacture U-Shape Steel Supports based on tunnel drawing and project requirement.
Including but not limited to:
6. FAQ
Q: What are U-Shape Steel Supports used for?
A: These supports are commonly used for Coal mine roadway support, Tunnel reinforcement support and underground roadway protection, mining arch support and many other types of tunnel excavation support.
Q: What materials can be used?
A: The common material options are Q275B steel and 20MnK steel. Other steel grades can be customized upon engineering requests.
Q: Are U-Shape steel supports reusable?
A: Yes. The product offers a high recovery value and can be reused, making it ideal for mines that need support with high reusable rates.
Q: What size options are available?
A: The available sizes are 25, 29, 36 and 40. Each with different specifications including weight, height, width and thickness.
Q: Can the arch be customized?
A: Yes we offer customization options on support size, arch radius, leg length and connection accessories that can be customized as per tunnel or roadway design.
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We deliver complete support for underground reinforcement applications, covering: Mining roof and sidewall support systems Tunnel reinforcement solutions Slope stabilization engineering support Foundation anchoring systems Underground safety structural systems From early-stage project planning to on-site application, we help customers build safer and more stable underground environments.
Wanfeng provides a fully integrated product supply system, enabling customers to source all ground support materials from one supplier: Rock bolt systems (resin / FRP / threaded) Cable bolts & anchoring systems Steel arches & I-steel support systems Wire mesh & reinforcement mesh Plates, nuts, bolts & fastening components Resin & cement anchoring materials Mining tools & consumable accessories Our one-stop supply capability reduces procurement complexity and improves project efficiency.
We ensure stable and reliable product performance through strict manufacturing and quality control systems: Standardized production processes Raw material inspection and control Mechanical performance testing Load-bearing and tensile strength verification Batch consistency inspection Final quality inspection before shipment Every product is engineered to meet demanding underground safety requirements.
We also support customized solutions for different mining and engineering projects: Customized rock bolt specifications Non-standard steel support design Special mesh and reinforcement structures Project-based product configuration OEM / private label cooperation We work closely with global partners to develop tailored solutions for complex underground environments.
With strong export experience, we provide efficient global delivery and supply chain support: International export packaging standards Container loading optimization Multi-region shipping support Fast production scheduling for urgent projects Stable long-term supply agreements We ensure reliable delivery to mining projects across different countries and regions.
We support customers throughout the entire project lifecycle: Technical documentation support Installation guidance assistance Product replacement support Long-term supply continuity Engineering consultation for project expansion Our goal is to build long-term partnerships, not just single transactions.
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