Heavy-Duty U Section Steel Beam for Tunnel Support Systems
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Product Highlights
- High Load-Bearing Capacity: Designed for heavy loads and extreme conditions in mining and construction.
- Corrosion Resistant Material: Made of stainless steel or 20Mnk for durability in harsh environments.
- Customizable Dimensions: Available in various sizes like 40U with specific height, width, and thickness.
- Flexible Length Options: Standard 12-14ft, but custom saw cutting up to 20ft or longer is available.
- Multiple Surface Finishes: Options include cold drawn, polished, rough turned, and dull mill finish.
- CE and ISO Certified: Meets CE and ISO 9001:2000 standards for quality and safety assurance.
- OEM/ODM Support: Full customization from samples or designs available for specific needs.
- 1-Year Warranty: Comprehensive 1-year warranty coverage with online after-sales service.
Product Attributes
- Customization
- Available
- After-sales Service
- Online
- Warranty
- 1yeai
- Model NO.
- U40
- Certification
- CE, ISO 9001:2000
- Standard
- GB
- Surface Treatment
- Without Processing
- Manufacturing Process
- Forging
- Material
- Stainless Steel
- Size
- 40u
- Support Arch Material
- 20mnk
- Theoretical Weight
- 40.05
- Cross-Sectional Area (Cm2)
- 51.02
- Height
- 149
- Thickness
- 20.2
- Width
- 171
- Leg Thickness
- 8.5
- Transport Package
- Wooden
- Specification
- stainless steel
- Trademark
- ZHONGMEI
- Origin
- Shandong China
- Package Size
- 171.00cm * 21.00cm * 150.00cm
- Package Gross Weight
- 40.000kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of Heavy-Duty U Section Steel Beam for Tunnel Support Systems
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Heavy-Duty U Section Steel Beam for Tunnel Support Systems -
Heavy-Duty U Section Steel Beam for Tunnel Support Systems -
Heavy-Duty U Section Steel Beam for Tunnel Support Systems -
Heavy-Duty U Section Steel Beam for Tunnel Support Systems -
Heavy-Duty U Section Steel Beam for Tunnel Support Systems -
Heavy-Duty U Section Steel Beam for Tunnel Support Systems -
Heavy-Duty U Section Steel Beam for Tunnel Support Systems
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Product Description
Introduction of U25 Mining Steel Support Arch Support
25U steel bracket with effective to reduce the roof, sheet occurrence of accidents, safe and reliable, improve the stability of the mine ventilation system and other significant features. Selection of U-shaped steel shrinkable bracket, better solve the problem of excavation support. Widely used in mine roadway, mine roadway secondary support, and the support of the mountain tunnel support. 25U steel stent due to bear the pressure, support for a long time, easy to install is not easy to deformation, and so loved by the majority of mining machinery industryWithstand high pressure, support long time, easy to install and easy to deformation.
Arch steel support lift straight wall semi-arched shed in the Ready Roadway Intersection of applications, and achieved remarkable results. Optional retractable U-shaped steel bracket, solves the problem of tunneling support. U-shaped steel bracket than other rigid support with a scalable and reliable carrying capacity to adapt to the load and deformation of soft rock, cross utilization is high, easy to stand back support small amount of maintenance, support recovery reuse rate, reducing the pit wood used, environmental benefits are clear.
Features of U25 Mining Steel Support Arch Support
1,25U steel support to withstand the pressure, support for a long time, with easy to install and easy to deformation and so on.
2,25U steel support than other rigid stent with a scalable and stable and reliable carrying capacity to adapt to the soft rock of the load and deformation.
3,25U steel bracket cross-section utilization is high, easy support back to support, maintenance of small.
4,25 U steel support recovery reuse rate is high, reduce the use of pit wood, environmental benefits are very obvious. The project is safe and reliable, effectively reduce the caving, sheeting and other accidents, improve the stability of the mine ventilation system.
zmwm21
| Size | Material | Theoretical weight (kg/m) | cross-sectional area (cm2) | Height | Thickness | Width | Leg thickness |
| 25U |
Q275B/ 20Mnk | 24.95 | 31.79 | +1.0 120 -1.5 |
+0.5 15 -1.2 |
+1.0 130 -3.0 |
+0.8 6.3 -0.5 |
| 29U |
Q275B/ 20Mnk | 29.00 | 37.00 | +1.0 124 -1.5 |
+0.5 16 -1.2 |
+1.0 150.5 -3.0 |
+0.8 7.2 -0.5 |
| 36U |
20Mnk | 35.87 | 45.70 | +1.0 138 -1.5 |
+0.5 17 -1.2 |
+1.0 171 -3.0 |
+0.8 7.8 -0.5 |
| 40U | 20Mnk | 40.05 | 51.02 | +1.0 149 -1.5 |
+0.5 20.2 -1.2 |
+1.0 171 -3.0 |
+0.8 8.5 -0.5 |
About the Supplier
This supplier has been audited by BV. Verify the report on the official BV website with ID "MIC-ASR245885". Items marked "
" are certified.
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Company Profile
China Coal is a global brand with employees and manufacturing facilities worldwide. We are proud of what we create, the value we provide and the relationships we build - all while helping people succeed. Customers use our machines and technologies to accomplish more in construction, agriculture, landscaping, rental, grounds maintenance, utilities and other applications. Both the people behind our brand and the equipment we manufacture are tough, agile and versatile. China Coal equipment fosters a sense of pride and inspires confidence on even the most challenging job sites.
China Coal Group is a collective member of China Enterprise Confederation and China Entrepreneurs Association, a collective member of China Electronic Commerce Association, an excellent enterprise of China Machinery industry, a Top 10 Enterprise of China Operating Equipment Manufacturing, a supplier with guaranteed quality and reputation, a demonstration unit of China Credit Enterprise Certification System, a product with reliable quality and a customer satisfaction unit of national service, China AAA quality and trustworthy enterprise, China e-commerce enterprise credit rating AAA credit enterprise, China Internet enterprise credit rating AAA credit enterprise, Shandong e-commerce recognized enterprise, Shandong Province Economic and Information Technology Commission three network integration industry alliance member units, Shandong Province information demonstration unit, Shandong Province "five" executive director unit, Shandong Province logistics and transportation Member units of Transport Association, Shandong Province's first batch of producer service industry key dispatching enterprises, Shandong Province enterprise culture advanced units, Shandong Province's best employer enterprises, Jining City economic information system information work advanced units, Jining City E-commerce Association president units, Jining City's first batch of science and technology "little giant" enterprises, Jining City college graduates employment probation base, municipal contract and credit enterprises Industry, Jining City technology center, etc.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- No. 11, North of Kaiyuan Road, High-Tech Zone, Jining, Shandong, China
-
Plant Area
- 7650.7 square meters
-
Number of Employees
- 77
-
Registered Capital
- 30,000,000 RMB
-
Terms of Payment
- LC, T/T
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR
-
Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: one month -
Nearest Port
- Qingdao Port, Tianjin Port, Shanghai Port
-
Minimum Order Quantity
- 1 Set
-
Supply Chain Partners
- 98
Our Production Capability & Technical Expertise
-
Main Products
- Mini Excavator, Wheel Excavator, Road Roller, Road Loader, Spider Crane, Lawn Mower, Electric Forklift, Steel Rail, Concrete Pump, Small Excavator, Skid Steer Loader
-
Production Lines
- 2
-
Production Machines
- Assembling line
-
QA/QC inspectors
- 3 people
-
Inspection Type for Finished Products
- 100% inspection(Visual inspection & Function inspection)
-
Inspection Method for Finished Products
- Have instructions and uniformly followed
-
Customization Options
- Customization from Samples, Customization from Designs, Full Customization, Minor Customization, Flexible customization
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 6 people
-
Traceability of Raw Materials
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2019-03-26
-
Export Year
- 6 Years
-
Main Markets
- North America, South America
-
Repeat Buyers Choice
- 30%~50%
-
Number of Foreign Trading Staff
- 8
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- Yes
Our Certifications, Standards & Industry Recognition
-
Product Certification
- CE
-
Cooperated with Fortune 500
- No
FAQ
- What are the standard dimensions for the 40U steel beam?
- The 40U model has a height of 149mm, width of 171mm, thickness of 20.2mm, and leg thickness of 8.5mm.
- Is customization available for size and material?
- Yes, we offer full customization including size, material (such as 20Mnk), and specific design requirements.
- What surface treatments are available?
- We provide various finishes including cold drawn, centerless ground, polished, rough turned, and standard mill finish.
- What is the minimum order quantity?
- The minimum order quantity is 1 set.
- What are the payment terms?
- We accept LC (Letter of Credit) and T/T (Telegraphic Transfer) as payment methods.
- How long is the lead time for production?
- The average lead time is one month, regardless of peak or off-peak seasons.
- What certifications does the product have?
- The product is certified with CE and ISO 9001:2000 standards.
- Can you provide custom saw cutting services?
- Yes, we can custom saw cut the steel beams to specific lengths, including up to 20 feet or longer.
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