FAQ
Answers to common questions about metal spinning, CNC spinning, flow forming, materials, tolerances, tooling, surface finishing and OEM manufacturing.
Metal Spinning FAQs
Metal spinning provides several key benefits. The finished parts are free of wrinkles and warping. Metal spinning generates minimal scrap, reducing material waste. It is often more affordable than other metal forming methods, particularly for small production runs. Additionally, the spinning process can work-harden the metal, resulting in stronger finished components.
Metal spinning is a cold-worked metal forming process. On a rotating lathe, a flat metal disc is shaped over a mandrel. With tools or rollers, pressure deforms the metal to produce round, symmetrical components. Since no material is cut or removed, the finished parts feature smooth surfaces and consistent uniformity.
Metal spinning is used in aerospace, defense, architecture, and appliance manufacturing. It’s ideal for producing precision components like engine parts, cookware, lighting fixtures, and decorative metalwork for industrial and commercial applications.
CNC metal spinning uses computer-controlled machines for precise, repeatable production. Unlike manual spinning, which depends on operator skill, CNC systems automate shaping, ensuring consistent quality, higher production rates, and tighter tolerances for complex designs.
Hot spinning heats the metal to make it more pliable, enabling smaller diameters and seamless shoulders. Cold spinning is performed at room temperature and is preferred for applications requiring dimensional accuracy and work-hardened strength.
Metal spinning is cost-effective, fast, and produces wrinkle-free, high-quality parts. It minimizes material waste and work-hardens the metal for added strength, making it ideal for both small and medium production runs in manufacturing facilities.
Precision metal spinning enables the creation of products such as engine components, gas cylinders, nozzles, tank heads, rocket nose cones, brass instrument bells, decorative items, specialty lighting, public waste bins, funnels, freezer parts, mixing bowls, cookware, filter housings, pressure vessels, and cartridges.
The most common shapes are hollow dished, conical, hemispherical, and elliptical shapes. Edge configuration that includes beads and hems are also accomplished with metal spinning. Due to the nature of the process, most spinnings are round. In some instances spinning can be combined with other forming processes to produce slightly irregular shapes.
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Our Company FAQs
King Metal Spinning Co., Ltd., Metal Spinning Services FAQs
Bespoke metal spinning delivers custom metal component fabrication by spinning sheet metal into custom geometries tailored to your requirements. We fully adapt to match your project’s precise specifications. Partnering with our team grants you access to metal spinning solutions custom-built for your business and application. Drawing on our engineering expertise, we select optimal materials and processes to achieve the best outcomes for your project.
We provide precision metal spinning services for custom metal-spun components.
Tolerance : ±0.1 mm
Large-diameter : Ø3000 mm
The following materials can all be spun. If your project requires a different metal, we can work with many more specialist materials, however these will typically require heat (annealing) to meet your specifications.
- Aluminium
- Stainless Steel
- Brass
- Carbon Steel
- Copper
- Corten
- Hastelloy Alloys
- Inconel
- Mu-metal
- Silver
- Titanium
We leverage our metal forming expertise to manufacture a wide range of metal-spun components, including dished ends, pressure vessel parts, spun cones, tank heads, and custom profiles.
Precision Metal Spinning:
- Tolerance: ±0.1 mm
- Maximum diameter: Ø3000 mm
Cross-Industry Expertise:
- We serve sectors including Aerospace, Architecture, Automotive, Lighting, Energy, Agriculture and more.
Yes, tooling costs are normally required. We evaluate options to deliver the most cost-effective solution for your project requirements.
Our standard lead time is 3–4 weeks where feasible. Lead times may be extended for large-volume metal spinning orders.
We offer a full range of finishing and secondary operations including edge trimming, beading and hemming, CNC machining, vessel welding, internal and external polishing, surface treatments (such as pickling and passivation for stainless steel), powder coating, and non-destructive testing (NDT).
Yes. Our in-house finishing shop provides mechanical polishing (manual or automated), electropolishing, pickling, passivation, and anodising. Edge trimming, beading, CNC machining and welding can all be completed within the same order, so components leave our facility ready for assembly or further welding.
We serve a variety of industries including Aerospace, Architecture, Automotive, Lighting, Energy, Agriculture and more.
Dished ends are the end caps welded to the main body of a pressure vessel, providing pressure containment, strength, and stability. The curved shape distributes pressure evenly, reducing stress concentrations and preventing deformation. Dished ends are effective in increasing the internal volume of a pressure vessel, allowing more space for liquids, gases, or any other materials. They can be created in different ways depending on the type of end that is needed for the project and also will need the properties that make it suitable for its application once completed. Types such as flat flanged ends, ellipsoidal, hemispherical, and torispherical dished ends offer varying levels of strength and fabrication ease, making them essential for durable and efficient pressure systems.
A pressure vessel is a secure container that is designed to hold a range of vapours, liquids, and gases. Pressure vessels can come in different shapes and sizes depending on their specific applications. A typical model of a pressure vessel is a long cylinder combined with two heads. Pressure vessel parts may be used for heat exchangers, reactors, flash drums, distillation towers, and separators and are expertly spun for the safety, chemical, petrochemical and food production sectors.
Yes. Dish ends for pressure vessels and stainless steel dished tank heads are a regular product. We supply the formed head; vessel design, PED modules and any ASME stamp stay with the vessel fabricator unless agreed separately. Internal or external polish, pickling and passivation can be done in the same works.
Inside or outside diameter, thickness, material and grade, profile, straight-flange length, quantity, and any code or finish. No drawing is fine, we will issue one with the quotation, usually within 24 hours, for you to sign off before metal is cut.
It depends on the profile. A 2:1 ellipsoidal head is typically a quarter of the inside diameter deep; a hemisphere is half a sphere. Knuckle, crown and straight flange change both height and volume, so a generic dish end volume calculator is only a first pass. Give us the radii and we will put the finished dimensions on a drawing with the quote, at no extra cost.
You can get a quote for spinning and deep drawing stamping.
No. We manufacture dish ends and other bespoke metal-spun parts, not machinery. We complete all orders using our in-house metal spinning and press tooling. You purchase finished tank heads and spun components from us, not capital equipment.
Yes. Our agricultural precision metal spinning supplies hopper cones, tank dish ends, covers and protective guards. For automotive applications, we manufacture formed hub components, exhaust guide tubes, shock-absorber bodies and other rotationally symmetric vehicle parts in steel, stainless steel and aluminum.
Yes. We specialize in custom precision metal spinning with aerospace-grade aluminum and high-performance alloys. We hold tight tolerances and deliver consistent quality for mission-critical aerospace components such as UAV aluminum housings, radar receiver covers and engine cowling components.
Air freight
- Prototype and small-batch metal spinning parts
Sea freight
- Large-volume production orders
- Heavy or large-diameter metal spinning parts
King Metal Spinning Co., Ltd., No. 2, Jintai Road, North District, Shifang Economic Development Zone, Deyang, Sichuan Province, 618400, China.
Telephone: +86 138-8053-9291
Email: sales@kms-spin.com
Tell Us Your Project Requirements
Upload your drawings and receive your quotation within 24 hours.