About Zhengzhou Sinco Machine Co., Ltd - Dies & Mouldings Supplier in China

Zhengzhou Sinco Machine Co., Ltd is based in Zhengzhou, Henan Province, China and currently lists five distinct product lines. The catalogue includes Aluminum die casting, generic Wigs, Die casting, Machining parts, and Forgings that are classified under HS code 7326.19 and manufactured from carbon steel, alloy steel or stainless steel. Each entry reflects the supplier’s focus on metal castings and related machining services. The active product count of five aligns with the two top categories identified as “Dies & Mouldings” and “Metal Castings & Forgings”. The supplier is recorded as an imported tier with a harbor trust rating, indicating established customs clearance processes.

The product set spans both casting and forging processes, covering aluminum alloy die‑casting and steel forging operations. In addition to full die‑cast components, the supplier lists generic “Wigs”, which are typically used as auxiliary tooling or fixtures in casting lines. Machining parts are offered to complement casting outputs, providing post‑processing such as CNC turning or drilling. All five items are grouped under HS chapter 73 for iron and steel products, except the aluminum die casting which generally falls under HS chapter 76. This mix positions the supplier within the broader metal‑working supply chain serving automotive, machinery and equipment manufacturers.

Product Range and Specialties of Zhengzhou Sinco Machine Co., Ltd

The catalogue’s aluminum die‑casting entry generally refers to alloy grades such as AlSi9Cu3 or AlSi10Mg, which are standard for high‑strength, low‑weight components. Typical die‑cast specifications include tensile strength of 250‑350 MPa, elongation of 2‑5 %, and surface hardness around 70‑90 HRB. For the steel forging line (HS 7326.19) buyers usually expect carbon steel grades like 1045, alloy steels such as 4140, or stainless grades like 304, with hardness ranges of 180‑250 HB and impact values meeting ASTM A103. The “Wigs” and “Machining parts” are commonly fabricated from the same steel families and finished to dimensional tolerances of ±0.1 mm or tighter for precision applications. Industry practice also includes coating options - anodizing for aluminum die‑casts and phosphating or galvanizing for steel forgings - to improve corrosion resistance.

Trade and Export Information - Zhengzhou Sinco Machine Co., Ltd

China ranks among the top global exporters of metal castings and forgings, with shipments primarily destined for Southeast Asia, Europe and North America. HS chapter 73 items such as forged steel (7326.19) are frequently imported by automotive OEMs, heavy‑equipment manufacturers and aerospace suppliers, while aluminum die‑casting (HS 7615) serves the electronics, consumer‑goods and automotive interior markets. Buyers typically require ISO 9001 quality management certification and, for automotive supply chains, IATF 16949 compliance, though the supplier’s specific certifications are not listed in the facts. Standard export documentation includes a commercial invoice, packing list, certificate of origin, and a material test report complying with ASTM or EN standards. Containers are usually loaded in 20‑ft or 40‑ft units, with steel forgings packed in wooden crates on pallets and die‑cast parts wrapped in corrugated pallets to prevent deformation during sea transit.

Sourcing from Zhengzhou Sinco Machine Co., Ltd - Buyer Guidance

When evaluating Zhengzhou Sinco Machine Co., Ltd, buyers should request material test reports that detail chemical composition, tensile strength, hardness and impact resistance for both forged and die‑cast items. Samples of the aluminum alloy die‑cast and a representative steel forging batch allow verification of dimensional tolerances and surface finish before full‑scale orders. Confirm whether the supplier can provide ISO 9001 or IATF 16949 audit reports, as these are common prerequisites for automotive and high‑specification machinery contracts. Verify the HS code declarations on the commercial invoice match the product description (e.g., 7326.19 for steel forgings) to ensure correct duty assessment. Finally, clarify packaging specifications - crate dimensions, pallet weight limits and moisture protection - to align with the buyer’s logistics handling procedures.

What metal grades are available for the forged products listed under HS code 7326.19?

The supplier indicates carbon steel, alloy steel and stainless steel as material families. Typical grades in this range include carbon steel 1045, alloy steel 4140 and stainless steel 304, which meet common tensile and hardness requirements for mechanical components.

Does Zhengzhou Sinco Machine Co., Ltd provide material test reports for its aluminum die‑casting?

Material test reports are not confirmed in the supplied facts, so buyers should request ASTM B209 or ISO 6361 certification documents that specify alloy composition, tensile strength and surface hardness before confirming orders.

Are the "Wigs" listed in the catalogue intended for tooling or end‑use parts?

The term "Wigs" generally refers to auxiliary tooling fixtures used in casting or machining operations. Buyers should ask the supplier for dimensional drawings and material specifications to determine suitability for their production line.

What packaging format is used for the steel forgings during export?

While the facts do not detail packaging, industry practice for HS 7326.19 items is wooden crates or palletized bundles wrapped in stretch film, with dimensions that fit standard 20‑ft or 40‑ft containers.

Which certifications should a buyer request for automotive‑grade forgings from this supplier?

Buyers typically request ISO 9001 quality management certification and IATF 16949 compliance for automotive applications, along with a mill test certificate that verifies chemical composition and mechanical properties.

What Incoterms are commonly applied to shipments of metal castings from China?

Exporters of metal castings from China frequently use FOB (Free on Board) at a major Chinese port, allowing the buyer to arrange ocean freight and insurance, or CIF (Cost, Insurance, Freight) if the seller handles freight to the destination port.