About Zhengzhou More Superhard Company - Drilling Machines & Tools Supplier in China

Zhengzhou More Superhard Company is based in Zhengzhou, China and currently lists 37 active products. The catalogue focuses on super‑hard cutting and grinding solutions, including CVD diamond wire drawing die blanks, PCD and CBN tools, vitrified diamond wheels, and metal‑diamond cutting blades. Products are grouped under the HS code families that typically cover cutting tools (HS 8205) and stone‑cutting equipment (HS 6815). The company also offers carbon‑fiber and composite materials that support tooling applications. Each item is described by its material composition such as CVD diamond, PCD, CBN, vitrified bond, or resin bond, reflecting the technical breadth of the offering.

The listed items serve industries such as stone fabrication, glass cutting, precision machining, and drilling of hard alloys. Typical end‑users include manufacturers of granite processing equipment, glass cutting lines, and CNC machining centers. Export destinations for Chinese super‑hard tools commonly include North America, Europe and Southeast Asian markets, where the HS codes 8205 and 6815 are routinely applied for customs clearance. The supplier’s product set therefore aligns with global demand for high‑precision, wear‑resistant tooling.

Product Range and Specialties of Zhengzhou More Superhard Company

The catalogue includes CVD diamond wire drawing die blanks, PC‑D (polycrystalline diamond) blanks, CBN (cubic boron nitride) turning inserts, vitrified diamond grinding wheels, and metal‑diamond cutting discs for glass and quartz. Industry standards for these items often specify diamond purity above 99 % for CVD and PCD, grain sizes ranging from 30 µm to 120 µm, and bond hardness matched to the workpiece material (e.g., vitrified bond 1‑3 for steel, resin bond for non‑ferrous). CBN tools are typically graded by Mohs hardness (9.5 - 9.8) and by the percentage of CBN content, while CVD diamond wires are measured by tensile strength and diameter tolerance. Common wheel dimensions are expressed in millimetres (e.g., 125 mm diameter, 6 mm thickness) and are supplied in 20‑ft containers with protective wooden crates.

For buyers, it is useful to note that PCD and CBN tools often require pre‑coating or cooling specifications, such as water‑based coolant flow rates of 5 - 10 L/min for high‑speed grinding. Metal‑diamond blades for glass are typically produced with copper plating to improve heat dissipation, and their cutting edge thickness is usually 0.2 - 0.4 mm. Resin‑bonded diamonds are packaged in sealed bags with moisture‑control packs to maintain performance during transport.

Trade and Export Information - Zhengzhou More Superhard Company

China is a leading exporter of super‑hard tools, and shipments from Zhengzhou typically follow the HS 8205 (cutting tools of base metal) and HS 6815 (tools for cutting, shaping or polishing stone) classifications. Major importing regions include the United States, Germany, South Korea, and Japan, where automotive, aerospace and construction sectors demand high‑precision grinding and cutting components. Buyers usually request ISO 9001 quality management certification and, where applicable, CE marking for safety compliance; these are standard requirements rather than specific claims of this supplier. Common export packaging involves wooden pallets, shrink‑wrapped bundles, and moisture‑proof liners, with container loading optimized for 20‑ft or 40‑ft units under FOB or CIF Incoterms.

Regulatory considerations often involve customs inspection for diamond‑containing products, requiring material safety data sheets (MSDS) and, for CVD diamond, a declaration of synthetic origin. Export documentation typically includes a commercial invoice, packing list, certificate of origin, and test reports confirming hardness (Vickers HV > 9000 for CVD) and grain size distribution. Importers in the EU may also need to meet REACH registration for metal‑diamond composites.

Sourcing from Zhengzhou More Superhard Company - Buyer Guidance

When sourcing from Zhengzhou More Superhard Company, request detailed product data sheets that list diamond purity, grain size, bond type, and mechanical properties such as hardness and tensile strength. Sample verification should include a hardness test (Vickers or Mohs), dimensional tolerance check, and a wear‑resistance trial on the intended workpiece material. Buyers are advised to obtain the supplier’s ISO 9001 certificate, any CE conformity declarations, and third‑party test reports before finalizing orders.

Confirm packaging details - e.g., whether wheels are shipped in wooden crates with desiccant packs - to avoid moisture damage. Verify lead times for custom blanks or specialized wheel sizes, which can range from 15 to 30 days depending on order volume. Clarify the Incoterm (FOB Shanghai or CIF destination port) and arrange for pre‑shipment inspection if required by the importing country.

What diamond purity levels are typical for the CVD Diamond Wire Drawing Die Blanks offered?

CVD diamond wire blanks from Chinese manufacturers usually exceed 99 % carbon purity, with impurity levels below 0.1 %. Buyers should request a laboratory analysis report confirming the purity.

Which HS code is most appropriate for the Vitrified Diamond Wheels?

Vitrified diamond grinding wheels are generally classified under HS 8205 90, which covers cutting tools of base metal not elsewhere specified.

What bond hardness should be selected for grinding hardened steel with a CBN wheel?

For hardened steel (HRC 55‑60), a vitrified bond hardness of 2‑3 is standard, providing sufficient rigidity while allowing controlled wear.

Are there any standard certifications that buyers should ask for before purchasing PCD blanks?

Buyers typically request ISO 9001 quality management certification and a third‑party hardness test report (Vickers HV > 9000) for PCD blanks.

What is the usual packaging method for metal‑diamond cutting discs for glass?

These discs are usually packed in sealed cardboard boxes with moisture‑absorbing packets, then placed on wooden pallets for container loading.

How long does it take to produce a custom‑size CBN grinding wheel?

Custom CBN wheels generally require 15‑25 days from order confirmation, depending on size, bond type and production queue.

What documentation is needed for customs clearance of synthetic diamond tools?

A commercial invoice, packing list, certificate of origin, material safety data sheet (MSDS), and a synthetic‑diamond declaration are standard for customs clearance.