About Ningguo Sifang Steel Ball Mold And Equipment Co., Ltd. - Cast Iron Supplier in China

Ningguo Sifang Steel Ball Mold And Equipment Co., Ltd. is located in China and lists five active products in its catalogue. The catalogue includes cast iron, roller, cooling cradle, steel ball and steel ball mold. These items fall under the top categories of Cast Iron, Heavy Machinery, Refrigeration Cold Storage and Steel Balls. The supplier is classified as an imported tier with a harbor trust tier.

The product list groups raw material (cast iron) with finished components such as rollers and cooling cradles used in refrigeration equipment, as well as precision steel balls and their moulds for bearing manufacturing. Each product is associated with its respective HS code family - for example, steel balls are generally classified under HS chapter 72, while cast iron products fall under chapter 73. The catalogue does not provide further technical specifications, but the range reflects typical items sourced for industrial machinery and bearing supply chains.

Product Range and Specialties of Ningguo Sifang Steel Ball Mold And Equipment Co., Ltd.

The cast iron offering typically refers to gray cast iron with tensile strength between 150‑250 MPa and carbon content around 2‑4 %. In industrial applications, grades such as GJL‑250 and GJL‑300 are common, and buyers often request a material test report confirming chemical composition and Brinell hardness (HB 150‑200).

Steel balls are usually produced from bearing steel (AISI 52100) with hardness of 58‑65 HRC, dimensional tolerance of ±0.001 mm for 10‑30 mm diameters, and surface roughness Ra ≤ 0.2 µm. The associated steel ball moulds are machined from hardened tool steel, often conforming to ISO 9001 quality management standards. Rollers and cooling cradles for refrigeration units are fabricated from carbon steel or stainless steel, with typical dimensions up to 2 m length and load capacities defined in kN. These specifications align with standard expectations for heavy‑machinery components.

Trade and Export Information - Ningguo Sifang Steel Ball Mold And Equipment Co., Ltd.

China is a leading exporter of cast iron components, steel balls and related moulds, supplying automotive bearing manufacturers in Europe, North America and Southeast Asia. The HS‑code 7208 series covers steel balls, while HS‑code 7302 is used for cast iron articles; both codes are subject to customs inspections for material certification and anti‑dumping duties in certain markets.

Buyers of refrigeration equipment often import cooling cradles and rollers under HS‑code 8421, which may require CE marking or UL certification depending on the destination. Chinese exporters typically ship in 20‑ft or 40‑ft containers, using FOB or CIF Incoterms, and employ wood packaging treated according to ISPM 15. Requesting a pre‑shipment inspection report and a certificate of origin helps meet import regulations in the EU, US and Japan.

Sourcing from Ningguo Sifang Steel Ball Mold And Equipment Co., Ltd. - Buyer Guidance

When sourcing from Ningguo Sifang, request a material test report for the cast iron specifying carbon and silicon percentages, as well as Brinell hardness. For steel balls, ask for a hardness certificate, dimensional inspection report and, if applicable, a compliance statement for ISO 9001 or ISO 14001.

Verify that the steel ball mould and any refrigeration components are accompanied by a CE or UL declaration of conformity, especially for markets that enforce safety standards. Samples of the roller and cooling cradle should be evaluated for load capacity and corrosion resistance before placing a bulk order.

What product categories does Ningguo Sifang list?

The supplier lists cast iron, roller, cooling cradle, steel ball and steel ball mold, covering cast iron components, heavy‑machinery rollers, refrigeration equipment parts and precision bearing balls.

Which HS codes are typically associated with these items?

Cast iron articles are usually classified under HS chapter 73 (e.g., 7302), rollers and cooling cradles under HS 8421, steel balls under HS 7208 and steel ball moulds under HS 7326, though the supplier’s catalogue does not specify exact codes.

What quality documentation should a buyer request?

Buyers should ask for material test reports (chemical composition and hardness) for cast iron, hardness and dimensional inspection certificates for steel balls, and CE/UL conformity certificates for refrigeration components.

What are typical specifications for the steel balls offered?

Steel balls are commonly made from AISI 52100 bearing steel, with hardness 58‑65 HRC, size tolerance ±0.001 mm for diameters 10‑30 mm, and surface roughness Ra ≤ 0.2 µm.

How are the products usually packaged for export?

Export shipments are normally packed in wooden crates or pallets treated to ISPM 15 standards, with steel balls placed in moisture‑proof bags, and larger components such as rollers and cooling cradles secured on pallets inside 20‑ft or 40‑ft containers.

Which markets import these types of goods from China?

Major importers include automotive bearing manufacturers in Europe and North America, refrigeration equipment assemblers in Southeast Asia, and heavy‑machinery producers in the Middle East.