About Zhuzhou Changhong Mining Machinery Co., Ltd. - Drilling Machines & Tools Supplier in China

Zhuzhou Changhong Mining Machinery Co., Ltd. is located in China and currently lists five active products in its catalogue. The catalogue includes a DTH drill bit, a concentric drill system, a DTH hammer, an eccentric drill system, and rock‑drilling bits for water‑hammer drilling. All items are classified under the “Drilling Machines & Tools” category, which is typically recorded under HS chapter 84 for drilling equipment. The supplier’s trust tier is recorded as “harbor,” indicating a moderate level of verification within trade platforms. The product set reflects a focus on underground mining and construction drilling applications.

Product Range and Specialties of Zhuzhou Changhong Mining Machinery Co., Ltd.

The DTH (down‑the‑hole) drill bit and hammer products are generally manufactured from tungsten‑carbide inserts mounted on steel bodies, with common diameters ranging from 63 mm to 325 mm and tip angles of 118° to 135°. Concentric and eccentric drill systems are designed to transmit rotational torque while compensating for mis‑alignment, often featuring modular couplings and hydraulic or pneumatic actuation. Rock‑drilling water‑hammer bits typically incorporate a piston‑driven hammer mechanism that delivers impact energies between 1 kJ and 5 kJ per stroke, suitable for hard rock formations. Industry buyers frequently specify parameters such as shank type (M14, M20, or SDS‑plus), bit length, and water flow rate (up to 30 L/min) for cooling and dust suppression. Typical quality grades reference ISO 9001‑based manufacturing processes and, where applicable, CE compliance for equipment used within the European market.

Trade and Export Information - Zhuzhou Changhong Mining Machinery Co., Ltd.

China is a major exporter of drilling machinery, with the majority of shipments directed to mining‑intensive regions such as Africa, the Middle East, and South America. Products like DTH drill bits and hammer systems are usually classified under HS code 8465 (drilling or boring machines) and HS code 8481 (tools for drilling, boring, or tapping). Importers often require pre‑shipment inspection reports (e.g., CIQ) and conformity certificates such as ISO 9001, ISO 14001, and CE marking when the equipment is intended for use in regulated jurisdictions. Standard Incoterms for these heavy tools are FOB or CIF, with containerised loads of 20 ft or 40 ft containers depending on size and packaging. Chinese exporters typically provide product data sheets, test certificates, and warranty terms as part of the export documentation package.

Sourcing from Zhuzhou Changhong Mining Machinery Co., Ltd. - Buyer Guidance

When evaluating Zhuzhou Changhong’s offerings, buyers should request detailed technical datasheets that list material grades, impact energy, hydraulic pressure limits, and dimensional tolerances. Samples or field‑trial units are advisable for verifying compatibility with existing drilling rigs, and buyers should ask for third‑party test reports covering hardness (≥ HRC 65 for carbide), impact resistance, and water‑hammer performance curves. Certification documents such as ISO 9001, CE Declaration of Conformity, and any applicable national standards (e.g., GB/T for Chinese equipment) should be obtained before contract finalisation. Verify packaging details - typically wooden crates with internal cushioning - and confirm that the supplier can accommodate standard container dimensions and weight limits (maximum 22 t per 40 ft container). Assess lead times, which for custom‑specified drill bits and hammer systems usually range from 30 to 60 days after order confirmation.

What drilling products are listed in Zhuzhou Changhong’s catalogue?

The catalogue lists a DTH drill bit, a concentric drill system, a DTH hammer, an eccentric drill system, and rock‑drilling bits for water‑hammer drilling.

Which HS chapters are typically used for the listed drilling equipment?

Drilling machines and related tools are generally classified under HS chapter 84 (machinery) and HS code 8465 for drilling or boring machines, with related accessories sometimes falling under HS 8481.

What material grades are common for DTH drill bits?

DTH drill bits are usually made from tungsten carbide inserts bonded to steel bodies, with carbide hardness often specified at HRC 65 or higher.

Which certifications should a buyer request for mining drilling machinery from China?

Buyers should request ISO 9001 quality‑management certification, CE Declaration of Conformity for European markets, and any relevant national standards such as GB/T for Chinese equipment. Third‑party inspection reports are also standard.

What are typical packaging and shipping methods for these drilling tools?

Products are commonly packed in reinforced wooden crates with internal foam or wood padding, loaded into 20 ft or 40 ft containers. FOB and CIF are the usual Incoterms used for export from Chinese ports.

What lead time and minimum order quantities are typical for these items?

Standard lead times range from 30 to 60 days after order confirmation, depending on customization. Minimum order quantities vary by product, with single‑unit samples often available for drill bits, while complete hammer systems may require a minimum of one unit per order.