Heavy-Duty Shield Anchors are robust mechanical fasteners designed to secure extremely heavy loads to concrete, masonry, or stone substrates. Unlike standard anchors, they feature a unique shield (expansion sleeve) that flares outward when tightened, creating a powerful grip for high-tensile and shear loads. Manufactured from carbon steel (hot-dip galvanized), stainless steel (316), or alloy steel (Grade B7), they are ideal for industrial, infrastructure, and seismic-resistant projects.
- Material:
- Carbon Steel: Grade 8.8/10.9 (HDG-coated, ASTM A307/A153).
- Stainless Steel: 316 (A4, passivated for marine/chemical environments).
- Alloy Steel: ASTM A193 Grade B7 (heat-treated for high-temperature resistance).
- Size Range:
- Diameter: 1/2"–4" (imperial) / M12–M100 (metric).
- Length: 3"–36" (75–900 mm, including embedment depth).
- Design Features:
- Shield Sleeve: Split, flanged design for maximum expansion and load distribution.
- Threaded Rod: Full-length threads for adjustable nut positioning.
- Head Style: Hex head or weldable base for permanent installations.
- Load Capacity:
- Tensile Strength: 5,000–50,000 lbs (2,268–22,680 kg) per anchor.
- Shear Strength: 4,000–40,000 lbs (1,814–18,144 kg) per anchor (tested to ASTM E488).
- Standard Carbon Steel HDG (1/2"–2"): 1,000 pieces (in-stock sizes).
- Stainless Steel 316 (M24–M60): 500 pieces (custom orders).
- Oversized Alloy Steel (3"–4"): 200 pieces (project-specific manufacturing).
Factory Advantages: ISO 17025-certified testing labs, ASME BPVC Section VIII compliance for pressure vessels, and support for custom shield geometries or seismic-resistant designs with lead times of 20–45 days.
- Industrial Machinery: Securing presses, turbines, and generators in manufacturing plants.
- Infrastructure: Anchoring bridge bearings, stadium seating, and heavy-duty rail systems.
- Energy Sector: Mounting wind turbine bases, solar tracker foundations, and nuclear facility components.
- Seismic Zones: High-durability anchors compliant with AISC 341 and UBC 97 for earthquake-resistant structures.
- Expansion Technology: Shield design ensures uniform load distribution, reducing stress on concrete.
- Corrosion Resistance:
- HDG carbon steel: 1,500+ hours salt spray (ASTM B117).
- 316 stainless steel: 2,500+ hours salt spray for offshore/chemical plants.
- Temperature Stability: Maintains strength from -60°C to +500°C (alloy steel Grade B7).
- Code Compliance: Meets ICC-ES AC308, Eurocode 2, and Chinese GB 50017 standards.
- Material Upgrades: 2507 duplex stainless steel for ultra-corrosive environments.
- Coatings: Zinc-aluminum (ZAL) for 3,000+ hours salt spray or PTFE for low-friction applications.
- Special Features:
- Pre-galvanized threads to prevent seizure.
- Load-rated color coding (e.g., red for 20,000 lbs, blue for 30,000 lbs).
- Rigorous Testing: Each batch undergoes proof load testing and ultrasonic thickness measurement for coating integrity.
- Design Support: Free finite element analysis (FEA) for complex load scenarios.
- Sustainability: Recycled steel content up to 80% and low-VOC coating processes.
Contact Us
Request a quote for heavy-duty shield anchors engineered for your project’s unique demands! Factory-direct supply ensures compliance with global standards and reliable performance in the most challenging environments.
JH Bolt Co., Ltd is a professional manufacturer of different types of bolts with more than 15 years rich manufacturer experience. The factory area is more than 1500 squares with more than hundreds different types ofnevproduction machines. There are more than 50 people who work here for at least 5 years.With quality &customer frst, staffs second, then company, Our products are widely recog-nized and trusted by users all over the world. Proft for the development of communication, We are here for you 12 hours a day, 7 days a week!
