Ningbo Jiulong Casting Co., Ltd.
Company Overview
Ningbo and the surrounding Zhejiang coast form one of China's densest foundry and metalworking regions, with sand casting, investment casting, die casting and machining shops clustered around the port. Companies in this segment generally supply cast components that are machined and then assembled into industrial equipment, pumps, valves, gearboxes or construction machinery.
Ningbo Jiulong Casting belongs to the cast-and-machine tier of that cluster. Buyers who work with suppliers in this region usually value two things: the proximity of machining and heat treatment to the foundry, and the ability to ship from Ningbo port, which has dense container services to Europe and North America.
This profile is a starting orientation. Specific material grades, maximum casting weight, machining capacity and certifications should be confirmed with the company directly. The official website is the authoritative source for current details.
Main Products and Capabilities
- Iron and steel cast components for industrial equipment.
- Machined castings, including faces, bores and tapped holes.
- OEM supply to machinery and equipment builders.
- Typical supporting processes in the region: pattern making, heat treatment, shot blasting and surface finishing.
What to Verify Before Placing an Order
Casting is one of the product categories where the specification does the heavy lifting. Nominal grade alone is not enough. Ask for the actual chemistry and mechanical properties on the sample lot, and confirm which standard the grade maps to - a Chinese HT200 grey iron and a GC25 grey iron are similar but not identical in specification, and a drawing that names one while the foundry pours the other is a conversation you want to have early.
Then ask about the defect acceptance criteria. Porosity, sand inclusion and shrinkage are inherent to casting; the question is what size and location you accept. A written acceptance standard with a visual reference, plus a defined radiographic or ultrasonic requirement for critical sections, prevents the argument that always arrives with a pallet of parts.
Finally, confirm first-article inspection practice and whether dimensional reports are available per lot. For machined castings, the datum scheme on the drawing has to match the fixture the shop uses, or the reported numbers will not reflect the part as installed.
Contact
Company address, contact person and product range should be confirmed on the official website. This profile does not list phone numbers or email addresses that are not verifiable from the company's own published channels.