The Zinc Plated Carbon Steel Chemical Anchor Bolt (commonly known as a chemical capsule anchor, resin anchor stud, glass ampoule anchor, or adhesive anchor stud) is a high-load, stress-free bonding anchor system engineered for heavy structural fixings in concrete, solid stone, and dense masonry substrates. Consisting of a carbon steel threaded stud with a 45-degree chamfered chisel tip and a sealed glass capsule containing high-performance vinyl ester resin, quartz sand, and hardener, driving the stud with a rotary hammer drill crushes the glass and homogenously mixes the chemical components. The fast-curing polymer resin bonds the threaded stud directly to the concrete borehole wall without generating outward expansion stress, fully complying with global ISO standards.
Technical Specifications of Chemical Anchor Bolts and Resin Capsules
We produce Class 5.8, Class 8.8, and Class 10.9 carbon steel chemical anchor studs in Electro-Zinc Plated (EG) and Hot-Dip Galvanized (HDG) anti-corrosion finishes. Because chemical anchors create a 100% airtight seal inside the borehole, they protect the interior concrete against water ingress and chemical corrosion.
| Chemical Anchor Grade | Steel Material Base | Tensile & Shear Capacity | Protective Zinc Coating | Key Structural Advantage |
|---|---|---|---|---|
| Class 5.8 Electro-Zinc Chemical Anchor | Low Carbon Steel (Q235B) | 500 N/mm² Tensile Strength | 5 µm – 12 µm Electro-Zinc (Blue-White / Yellow) | Standard Structural Steel & Curtain Wall Brackets |
| Class 8.8 High Strength HDG Chemical Anchor | Medium Carbon Steel (45# Quenched) | 800 N/mm² Tensile Strength | 45 µm – 65 µm Molten Hot-Dip Zinc Coating | Heavy Machinery Bases & Outdoor Substation Framing |
| Class 10.9 Heavy Duty Chemical Anchor | Alloy Steel (40Cr Quenched & Tempered) | 1000 N/mm² Tensile Strength | Dacromet / Hot-Dip Galvanized | Vibration-Loaded Equipment & Bridge Gantries |
Precision Manufacturing and Curing Mechanics of Chemical Anchors
At our manufacturing plant in Handan, China, chemical anchor studs and resin capsules are produced on automated high-speed cold heading, threading, and chemical dosing lines:
- Precision Chisel Tip Stud Forging: Cold formers forge high-grade steel wire into exact threaded studs with a 45-degree chamfered chisel end that shreds glass ampoules efficiently.
- Thread Rolling & Hex Driver Flat: Thread rolling machines roll precise metric threads, adding a hexagonal driving head at the top to fit rotary drill adapters.
- Automated Chemical Capsule Filling: Automated glass ampoule production lines dose exact ratios of vinyl ester resin, quartz sand aggregate, and peroxide hardener into hermetically sealed glass tubes.
- Corrosion Resistant Surface Coating: Trivalent chromium (Cr3+) electro-galvanizing or hot-dip galvanizing protects the steel stud from environmental weathering.
Key Engineering Applications of Chemical Anchor Bolts
Chemical anchor bolts provide stress-free, high-load fastening across demanding structural and civil engineering projects:
- Close Edge & Small Spacing Concrete Anchoring: Ideal for edge-of-slab fixings, balcony railings, and narrow column bases where mechanical expansion anchors would crack the concrete.
- Building Curtain Wall & Steel Structure Baseplates: Securing heavy aluminum curtain wall brackets, steel column bases, and canopy framing to concrete structures.
- Heavy Machinery, Crane Rails & Railway Subgrade: Fixing vibrating industrial machine beds, overhead crane rails, and sound barrier walls along highways and railways.
Quality Control and Export Packaging for Chemical Anchors
Handan YiHao Fastener enforces strict Quality Assurance (QA) standards for all overseas export orders. Testing procedures include 100% concrete pull-out tension tests, chemical curing time verification across various temperature ranges, coating thickness measurement, and salt spray validation.
All export items are bulk packed in heavy-duty inner cartons with shock-absorbing foam inserts for glass capsules, neatly stacked on ISPM 15 compliant fumigated wooden pallets, and wrapped in protective stretch film for safe ocean freight.
Request Factory Direct Pricing for Chemical Anchor Bolts
Looking for a trusted manufacturer in Handan, China for carbon steel zinc plated or HDG chemical anchor bolts & resin capsules (Class 5.8 / Class 8.8)? Contact Handan YiHao Fastener today for technical datasheets, concrete pull-out load test reports, free samples, and direct bulk export quotes.
