Hard Rock TBM Shield Casing

Hard Rock TBM Shield Casing: Unrivaled Strength for Extreme Tunneling

Shenyang Zhongda Steel Structure Engineering Co., Ltd. is a leading manufacturer and supplier of Hard Rock TBM Shield Casing. Our advanced engineering expertise, state-of-the-art fabrication facilities, and commitment to quality make us the preferred choice for tunneling projects worldwide. Zhongda's products offer unparalleled durability, precision, and performance for the most demanding underground excavation challenges.

Product Description: 

Our products are engineered to withstand extreme pressures and abrasive conditions encountered in hard rock tunneling. Crafted from high-grade Q460C low alloy steel with thicknesses ranging from 80-120mm, these shield casings provide the structural integrity necessary for efficient and safe tunnel boring operations. Designed to complement cutting-edge TBM technology, our shield casings feature precision-engineered segments that ensure optimal load distribution and minimized wear during operation. The robust construction of our products guarantees extended service life and reduced maintenance requirements, ultimately leading to improved project timelines and cost-effectiveness.

Product Features:

• Superior strength Q460C low alloy steel construction
• Customizable diameters from 4 to 15 meters
• Compatibility with Earth Pressure Balance (EPB) and Slurry Shield modes
• Thrust cylinder pressure capacity of 35-40MPa
• Maximum thrust speed of 80mm/min for efficient excavation
• Seamless integration with advanced cutter systems

Quality Control:

At Zhongda, we maintain rigorous quality control measures throughout the manufacturing process of our Hard Rock TBM Shield Casing. Our ISO 9001-certified quality management system ensures consistent adherence to international standards. We employ non-destructive testing methods, including ultrasonic and magnetic particle inspections, to verify structural integrity. Each shield casing undergoes meticulous dimensional checks and stress analyses to guarantee perfect fitment and performance in the field.

Why Choose Us?

Zhongda's expertise in production is backed by our full-chain technical integration capabilities and R&D-driven approach. Our collaboration with top-tier design institutes and universities keeps us at the forefront of tunneling technology. With a proven track record of delivering over 60 landmark projects and a 70% client retention rate, we offer not just products, but long-term partnerships built on trust and excellence.

Production Process:

Our advanced production line includes CNC ultra-thick plate cutting (up to 300mm), 3-axis CNC drilling systems, and automated welding lines, ensuring high-precision fabrication of the products.

OEM & ODM Services:

Zhongda offers comprehensive OEM and ODM services for the products, catering to the unique requirements of global tunneling projects. Our engineering team works closely with clients to develop custom solutions that address specific geological challenges and project specifications. We can adapt our shield casings to various TBM designs, incorporating innovative features such as improved sealing systems or enhanced wear-resistant coatings. Our flexible manufacturing capabilities allow for rapid prototyping and efficient production scaling, ensuring timely delivery of tailored products that meet or exceed international standards.

Project Cases:

Our products have been crucial to the success of numerous high-profile tunneling projects worldwide. Notable applications include:

• The 18,000-ton Shenyang Dongta Cross-Hunhe River Bridge tunnel section
• Multiple segments of the Jingha Expressway expansion project
• International projects in collaboration with CITIC and CCCC, adhering to EN 1090, AWS, and JIS standards

These case studies demonstrate our ability to deliver reliable products for diverse and challenging geological conditions.

Certifications:

• CE Certification (EN 12336)
• TUV Shield Machine Safety Assessment Report
• ISO 9001/14001/45001 certifications

  

   

Packaging and Delivery:

We ensure secure packaging for safe transportation. Standard models have a delivery cycle of 6-8 months, with shipping terms FOB Shanghai or CIF to port.

FAQ:

Q: What is the maximum diameter available for your products?
A: We can customize shield casings up to 15 meters in diameter to suit various tunnel sizes.

Q: How do you ensure the quality of your products?
A: We employ rigorous quality control measures, including non-destructive testing and stress analyses, throughout the production process.

Q: What after-sales support do you provide?
A: We offer a 48-hour global engineer response and free first-time cutter replacement, ensuring minimal downtime for your operations.

Contact Us:

Ready to elevate your tunneling project with our superior Hard Rock TBM Shield Casing? Contact our expert team at Ava@zd-steels.com for personalized consultation and quotations.