Import Duplex Coating Rock Bolt — Buy in wholesale FOB from Supplier in China
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Duplex Coating Rock Bolt
The Duplex Coating Rock Bolt is a carbon‑steel fastener designed for permanent rock reinforcement. It features a dual‑layer protection system comprising hot‑dip galvanizing followed by an epoxy powder topcoat. The supplier specifies that the epoxy coating meets EN 13438 with a minimum thickness of 60 µm. The bolt conforms to standard tensile and shear requirements for structural bolting used in mining and tunnelling. Dimensions such as diameter and length are offered in typical ranges for underground support.
Carbon steel provides the necessary strength, while the duplex coating delivers superior corrosion resistance in acidic or electro‑chemical environments. The zinc layer offers sacrificial protection, and the epoxy layer adds chemical stability and low drying shrinkage. Industry practice classifies such bolts as grade 8.8 or equivalent, delivering typical tensile strength around 120 MPa. Compared with single‑coated bolts, the combined system can extend service life to a century without maintenance in most conditions.
Primary users include mining operators, tunnel contractors and geotechnical engineers who require long‑term underground support. The product is supplied in bulk, palletised, with trade terms such as FOB or CIF available for international shipments. Buyers should confirm minimum order quantities and packaging details directly with the supplier.
| Material | Carbon steel with duplex coating (hot‑dip galvanized + epoxy) |
| Coating thickness (epoxy) | typical minimum 60 µm |
| Standard compliance | EN 13438 (epoxy), ISO 1519 (bending), ASTM D2794 (impact), ISO 2409 (adhesion) |
| Typical tensile strength | typical 120 MPa |
| Typical diameter | typical 16 mm |
| Typical length range | typical 1.5 - 3.0 m |
| Corrosion resistance service life | typical up to 100 years in non‑aggressive environments |
| Packaging | bulk palletised, FOB/CIF terms |
| Typical shear capacity | typical 30 kN |
Luoyang Sinorock Engineering Material Co., Ltd. is located at No.1703, Building 3, No. 1 Fenghua Road, High‑Tech District, Luoyang, Henan, 471000, China. The company holds a harbor trust tier on the platform, although its response rate is currently recorded as 0.00 and no average response time is listed.
The supplier specialises in engineering materials for mining and construction, with a product focus on rock bolts and related ground‑support components. Its catalogue highlights the duplex coating technology that combines hot‑dip galvanising and epoxy powder for extended durability, targeting customers such as mining operators, tunnel contractors and geotechnical firms worldwide.
This duplex coating rock bolt provides superior corrosion resistance for demanding mining and tunneling applications. The two-layer protection combines hot-dip galvanizing with an epoxy powder topcoat, delivering extended service life in aggressive underground environments. Designed for rock reinforcement and ground support systems, it meets standard tensile and shear requirements for structural bolting. Ideal for import and export in bulk packaging, this product serves mining operators, tunnel contractors, and geotechnical engineering firms worldwide. Trade terms like FOB and CIF apply for international shipments.
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Sourcing Duplex Coating Rock Bolt from Luoyang Sinorock Engineering Material Co., Ltd. - China Import Guide
Before placing an order, verify the coating thickness, compliance certificates and the specific grade of carbon steel used. Request the EN 13438, ISO 1519, ASTM D2794 and ISO 2409 test reports to confirm that the duplex coating meets your project’s corrosion‑resistance requirements. It is also advisable to obtain a sample batch for visual inspection of the epoxy finish and galvanised base.
Logistics for this product typically involve loading bulk pallets at the Luoyang manufacturing site and shipping via sea or rail to the buyer’s destination. Confirm the preferred Incoterm - FOB or CIF - and align payment terms such as L/C or T/T with the supplier’s standard practice. Lead times may vary depending on order size and custom length specifications, so discuss scheduling details early in the negotiation.
Quality assurance should include a third‑party inspection of the coating adhesion, thickness and overall bolt dimensions before loading. Ask for a pre‑shipment inspection report and ensure the supplier provides material safety data sheets, coating test certificates and a certificate of conformity. These documents help guarantee that the delivered bolts meet both contractual and regulatory standards.
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30 suppliersBuy Duplex Coating Rock Bolt in Bulk — Verified Supplier in China
When sourcing Duplex Coating Rock Bolt for your business, securing the right balance of quality and cost is essential. Luoyang Sinorock Engineering Material Co., Ltd., a verified supplier based in China, offers this product with key specifications including High Strength Rock Bolt, Grade 8.8 / 10.9, Duplex — Hot-Dip Galvanizing (first layer) + Epoxy Powder Coating (top layer), and 20mm - 30mm (customizable). By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $50/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 7318.19, making it a staple in the Bolts sector with strong demand from importing countries worldwide.
Duplex Coating Rock Bolt Specifications, Trade Terms & Pricing
Importing Duplex Coating Rock Bolt requires careful attention to shipping logistics, customs compliance, and secure payment terms. Luoyang Sinorock Engineering Material Co., Ltd. offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 7318.19 in their destination country. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading global B2B marketplace designed to make cross-border trade secure and efficient.
About Luoyang Sinorock Engineering Material Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Duplex Coating Rock Bolt has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Bolts category and connect with top-tier exporters on our comprehensive import export marketplace. Start your sourcing journey today.
Import Duplex Coating Rock Bolt — Shipping, Logistics & Customs
Importing Duplex Coating Rock Bolt requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties for HS Code 7318.19 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About Duplex Coating Rock Bolt
What is the wholesale price of Duplex Coating Rock Bolt?
The current listed wholesale price for Duplex Coating Rock Bolt from Luoyang Sinorock Engineering Material Co., Ltd. is $50/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Luoyang Sinorock Engineering Material Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for Duplex Coating Rock Bolt?
The supplier, Luoyang Sinorock Engineering Material Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Duplex Coating Rock Bolt. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Duplex Coating Rock Bolt?
For international shipping and customs clearance, Duplex Coating Rock Bolt is classified under HS Code 7318.19. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Duplex Coating Rock Bolt from China?
To import Duplex Coating Rock Bolt from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Luoyang Sinorock Engineering Material Co., Ltd.. Ensure you have the necessary import licenses for Bolts products in your destination country.
Is Luoyang Sinorock Engineering Material Co., Ltd. a verified supplier?
Yes, Luoyang Sinorock Engineering Material Co., Ltd. is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
What are the key specifications of Duplex Coating Rock Bolt?
The key specifications for Duplex Coating Rock Bolt supplied by Luoyang Sinorock Engineering Material Co., Ltd. include High Strength Rock Bolt, Grade 8.8 / 10.9, Duplex — Hot-Dip Galvanizing (first layer) + Epoxy Powder Coating (top layer), and 20mm - 30mm (customizable). For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
What packaging options are available for bulk orders of Duplex Coating Rock Bolt?
Luoyang Sinorock Engineering Material Co., Ltd. offers Duplex Coating Rock Bolt with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Duplex Coating Rock Bolt the most?
Duplex Coating Rock Bolt is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Luoyang Sinorock Engineering Material Co., Ltd. through our platform.
What certifications does this Duplex Coating Rock Bolt supplier hold?
Luoyang Sinorock Engineering Material Co., Ltd. maintains international quality certifications. These ensure that the Duplex Coating Rock Bolt meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Duplex Coating Rock Bolt on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Luoyang Sinorock Engineering Material Co., Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Luoyang Sinorock Engineering Material Co., Ltd..
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