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Help CenterConcrete Expansion Bolt for Heavy Machinery Installation Professional Grade Full Sizes Free Samples
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Welcome to Hefei SENOTECH New Materials Co., Ltd, a professional trading company established in 2020 with an annual export value of US$1 Million - US$1.5 Million. We are proud to introduce our Concrete Expansion Bolt for Heavy Machinery Installation — a professional-grade fastening solution designed to meet the demanding requirements of industrial setups. Our bolts are engineered for maximum reliability and ease of installation, ensuring that your heavy machinery stays securely anchored even under extreme vibration and load conditions. With full sizes available and free samples, we invite you to experience the quality that has earned us trust in markets across North America, South America, Europe, Asia, and beyond.
Professional Grade Construction
Our expansion bolts are manufactured from high carbon steel or alloy steel (optional), heat-treated to achieve Grade 8.8 or higher tensile strength. This ensures they can withstand the intense forces generated by heavy machinery such as compressors, generators, industrial presses, and conveyor systems. The bolts feature a precision-machined expansion sleeve that provides a strong, reliable grip within concrete, reducing the risk of pullout or loosening over time.
- Material Options: Choose from high carbon steel, alloy steel, or stainless steel upon request.
- Surface Finishes: Zinc plated (electroplated), hot-dip galvanized, or plain finish to suit various environmental conditions.
- Thread Types: Available in metric (M8-M30) and imperial (UNC/UNF) threads.
- Full Size Range: From 6mm to 30mm diameter and lengths up to 400mm or custom.
- Free Samples: We provide free samples for your testing and evaluation before bulk orders.
| Specification | Details |
|---|---|
| Diameter Range | M8, M10, M12, M16, M20, M24, M30 |
| Length Range | 50mm – 400mm (custom lengths available) |
| Tensile Strength | ≥ 800 N/mm² (Grade 8.8 equivalent) |
| Yield Strength | ≥ 640 N/mm² |
| Max Load Capacity (M12) | Up to 15 kN in C40 concrete |
| Temperature Range | -40°C to +80°C (standard) / higher on request |
| Compliance Standards | Manufactured according to industry norms; certifications available upon request |
Key Advantages for Your Business
- Vibration Resistance: The expansion mechanism locks the bolt tightly against the concrete wall, minimizing loosening under dynamic loads.
- Easy Installation: No special tools required — simply drill, insert, and tighten. Suitable for both mechanical and chemical anchoring systems.
- Corrosion Protection: Zinc or hot-dip galvanized finishes offer robust resistance in humid or outdoor environments.
- Customizable: We can tailor sizes, finishes, and packaging to your specific project needs.
- Cost-Effective: Competitive pricing without compromising on quality — ideal for large-scale industrial projects.
- Global Logistics: Our team in Hefei, China efficiently handles export to markets worldwide with reliable shipping partners.
Trusted by Industries Worldwide
Since our establishment in 2020, Hefei SENOTECH has steadily grown its annual export value to over US$1 Million, serving customers in more than 15 countries and regions. Our main markets include North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, East Asia, Western Europe, Central America, Northern Europe, Southern Europe, and South Asia. This global reach is a testament to the reliability and consistency of our concrete expansion bolts. We are committed to providing free samples for evaluation so you can test the performance before committing to volume orders. With a focus on customer satisfaction, we offer responsive technical support and flexible order quantities. Choose SENOTECH for your heavy machinery anchoring needs — experience professional grade quality with every bolt.
Frequently Asked Questions
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Q: What sizes are available for the concrete expansion bolt?
A: We offer a full range from M8 to M30, with lengths from 50mm to 400mm. Custom sizes can be manufactured upon request. -
Q: Do you provide free samples?
A: Yes, we provide free samples for your testing and evaluation. You only need to cover the shipping cost, or we can arrange delivery via your preferred carrier. -
Q: What material options do you offer?
A: Standard material is high carbon steel (Grade 8.8). We also offer alloy steel and stainless steel options. Surface finishes include zinc plating, hot-dip galvanizing, and plain. -
Q: Can these bolts be used for outdoor or corrosive environments?
A: Yes, with appropriate surface treatments such as hot-dip galvanizing or stainless steel, they perform well in humid, coastal, or chemical exposure conditions. -
Q: How do I install the expansion bolt?
A: Drill a hole of the recommended diameter and depth in concrete, insert the bolt, then tighten the nut to expand the sleeve securely against the concrete wall. Detailed installation guide is provided. -
Q: What is the maximum load capacity for an M12 bolt?
A: In C40 concrete, an M12 bolt can typically support up to 15 kN in tension and 20 kN in shear. Exact values depend on concrete strength and embedment depth. -
Q: Do you have any quality certifications?
A: Our products are manufactured in compliance with international industry standards. Specific certifications such as ISO or CE can be provided upon request and verification. -
Q: What is the minimum order quantity (MOQ)?
A: We accept small trial orders starting from 1000 pcs per size. For custom sizes, MOQ may vary. Contact us for details.
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