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This 12# mine steel arch is a pre-formed support structure fabricated from mine I beam sections, designed for immediate installation in underground tunnels and roadways. The arch is manufactured from Q345B steel, a grade offering higher yield strength (typically 345 MPa) than the Q275B used in raw beams, providing greater resistance to ground pressure. It is supplied as a complete arch set, ready for assembly, and is a common solution for secondary support in mining and tunneling projects.
The product's characteristics, as listed, include high pressure resistance, long support time, and ease of installation. Specific dimensional tolerances are provided: the outer edge deviation of the I-steel shall not exceed 2.4% of the leg width, bending deflection shall be no more than 1.0 mm, and eccentricity shall be within 2% of the leg width. These tolerances are critical for ensuring proper fit and load distribution when the arch segments are bolted together on-site.
Buyers for this product are typically mining engineering firms, tunnel construction contractors, and equipment suppliers to the underground resources sector. The arches are used for primary support in new excavations and for reinforcing existing roadways. When sourcing, it is essential to clarify whether the arch is supplied as a single unit or in segments, the included connection hardware, and the exact radius or profile dimensions to match your tunnel cross-section.
| Product Type | Pre-fabricated Steel Arch Support |
| Base Material | Q345B Low-Alloy High-Strength Steel |
| Nominal Size | 12# |
| Outer Edge Deviation Tolerance | ≤ 2.4% of leg width |
| Bending Deflection Tolerance | ≤ 1.0 mm |
| Eccentricity Tolerance | ≤ 2% of leg width |
| Bending Degree Tolerance | ≤ 3 mm |
| Typical Support Type | T-channel support, arch support |
| Primary Application | Mine roadway and tunnel secondary support |
| Typical Supply Form | Assembled arch or segmented for field assembly |
Henan Zongxiang Heavy Industry Import And Export Co, .ltd. is located in Zhengzhou, Henan Province, China. The platform assigns it a 'harbor' trust tier, suggesting a basic level of verification has been completed. However, the current data shows a response rate of 0.00% and an average response time of 0 hours, indicating no recorded history of responding to buyer inquiries through the platform's messaging system.
The company's profile does not disclose information about its manufacturing capabilities, years in operation, or specific projects it has supplied. It lists heavy industrial products, including this mine steel arch. For a buyer, this means fundamental information such as production capacity, quality control processes, and export experience must be obtained through direct communication and request for references before entering into a contract.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | <4h |
| Response Rate | New Supplier |
Sourcing a mine steel arch requires precise technical alignment. Before ordering from Henan Zongxiang, provide your exact tunnel cross-section drawings and confirm the supplier can fabricate the arch to the required radius and segment configuration. Request detailed fabrication drawings for approval prior to production to avoid costly errors.
Clarify all commercial and logistical terms upfront. Confirm the Incoterms, packaging method for the arch segments (e.g., crated, bundled), and the estimated production and shipping lead time. Given the supplier's unverified response history, establish a single point of contact and agree on a communication schedule for production updates.
Implement a robust quality assurance plan. This should include a pre-shipment inspection at the factory to verify dimensions, tolerances, and material markings against the order specifications. For a structural safety product like this, the cost of inspection is minimal compared to the risk of installing non-conforming material underground. Also confirm the availability of a Material Test Certificate for the Q345B steel used.
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When importing 12# Mine Steel Arch - Zxs from China, buyers should consider shipping terms (FOB, CIF, EXW), customs documentation requirements, and payment security. Contact the supplier to discuss the best logistics options for your destination country.
Click the "Request Quotation" button to contact Henan Zongxiang Heavy Industry Import And Export Co, .ltd. directly. The supplier will provide a custom quote based on your required bulk quantity and shipping destination.
Yes, Henan Zongxiang Heavy Industry Import And Export Co, .ltd. provides 12# Mine Steel Arch - Zxs for bulk export from China. You can negotiate the MOQ, packaging details, and shipping terms directly with the supplier.
Shipping terms such as FOB, CIF, or EXW can be negotiated directly with Henan Zongxiang Heavy Industry Import And Export Co, .ltd.. Contact the supplier to discuss the best logistics options for importing 12# Mine Steel Arch - Zxs to your country.
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