High-tolerance metal spinning for prototypes and high-volume production across diverse alloys.
Sheet Metal Spinning Services
Supro MFG is an advanced CNC metal spinning companies with a professional custom metal spinning technical team. We provide complete manufacturing solutions encompassing product design, spinning die mold design and fabrication, rapid spinning prototyping, and small-to-medium batch production.
Rapid stamping die Turnaround
Committed to exceeding expectations for quality and rapid turnaround, and meeting high-quality sheet metal parts.
Consistency & high quality
Whether it is rapid prototyping & large-volume manufacturing, we will implement it according to customer needs and standards.
Low Cost Effective
Integrate product design, bending, stamping, cutting, surface treatment, etc. to provide a series of manufacturing solutions.
What is Metal Spinning (Spinning Forming)?
Metal spinning (spinning forming) is a widely used metal forming process that creates symmetrical circular structures from flat metal sheets. This manufacturing technique leverages the tensile properties of the metal sheet, applying lateral pressure to achieve complex shapes matching the spinning die mold’s profile. The sheet is tightly secured and rotated at high speed, forming the desired shape between the tool and the spinning die mold. The resulting shape exhibits central symmetry along the die’s axis.
Metal spinning enables the creation of diverse complex shapes from sheet metal without material loss (maintaining weight) or altering the metal’s composition. However, areas subjected to tensile and compressive forces experience thinning. When thickness tolerances are critical, precise calculations and testing of this characteristic are essential to achieve high-quality metal spinning products.
Supro MFG operates an advanced CNC metal spinning production line. and a specialized metal spinning technical team. We provide comprehensive manufacturing solutions spanning product design, spinning die mold design and fabrication, rapid prototyping, and small-to-medium batch production.
Benefit from more options
Flexible metal spinning material options
Supro MFG’s CNC metal spinning services offer flexible material options tailored to the functional requirements of various components. With extensive spinning expertise, we perform CNC metal spinning on hundreds of materials. Selecting the appropriate material is critical to both your product quality and cost efficiency.
aluminum spinning parts
steel spinning parts
copper spinning parts
stainless steel spinning parts
brass spinning parts
bronze spinning parts
titanium spinning parts
nickel alloy spinning parts
- Aluminum Alloy: With its outstanding strength-to-weight ratio and exceptional corrosion resistance, it is widely used in applications requiring weight reduction, such as CNC metal spinning for aerospace components and automotive parts.
- Stainless Steel: Common grades include 201/301/304/310/316/316L/430, renowned for corrosion resistance and durability. Stainless steel spinning parts typically exhibit a metallic luster on their outer surfaces, making them suitable for diverse applications including kitchenware, automotive components, and industrial equipment.
- Copper: Possessing exceptional electrical conductivity and ductility, copper is commonly used in electronics, power systems, food processing, and decorative industries. Its beautiful red or yellow luster makes it the most frequently chosen material for custom CNC metal spinning.
- Carbon steel/Steel: A common material offering good machinability and weldability. Its significant cost advantage makes it widely used in automotive components, structural parts, and machinery manufacturing. Carbon steel spinning products often require powder coating or painting for enhanced corrosion resistance.
- Titanium: Titanium alloys represent an emerging material characterized by low weight and high strength, coupled with exceptional corrosion resistance. They find extensive application in aerospace, food and pharmaceutical processing, medical prosthetics, and high-performance automotive components.
- Nickel Alloys: Nickel alloys offer outstanding high-temperature resistance and corrosion resistance, making them suitable for demanding environments such as aerospace, chemical processing, and marine applications.
Why {Choose Supro MFG}
High Quality CNC Metal Spinning Service
Supro MFG, as the industry leader in China's custom metal spinning parts sector, has undergone over 30 years of entrepreneurial development. We specialize in custom metal spinning, CNC spinning components, mold design and manufacturing, and the development and production of CNC metal spinning equipment. We provide one-stop custom metal spinning services to over 500 global procurement companies, including those in the United States, Canada, Australia, the United Kingdom, Germany, France, South Africa, and numerous other countries worldwide, maintaining long-term stable partnerships.
Our custom spun metal parts manufacturing process is ISO9001-2015 certified and SGS-certified, serving industries including LED lighting, art, musical instruments, automotive, electronics, aerospace and defense, commercial food, and other industrial sectors.
We maintain a robust quality control system, supported by a team of technical experts in engineering design, quality assurance, and manufacturing processes. We analyze product design proposals based on usage requirements and functionality, conduct DFM testing, and deliver optimal manufacturing solutions.
Leveraging extensive manufacturing expertise, we proactively engage in client projects to optimize product designs and deliver comprehensive technical solutions. We provide exceptional components, superior performance, and efficient delivery alongside cost-effective manufacturing quotes. Your metal spinning projects will benefit from our commitment to premium quality and competitive pricing.
How We Provide Metal Spinning Services
Our precision metal spinning process transforms flat metal discs into complex, symmetrical hollow parts with seamless integrity. From rigorous blueprint verification and custom tooling fabrication to CNC-controlled forming and 100% dimensional inspection, we eliminate common overseas procurement risks like wall-thinning and surface micro-cracks. Guided by IATF 16949 and ISO 9001 standards, our proven steps ensure every batch meets your exact aerospace, automotive, or industrial tolerances, guaranteeing structural consistency from prototype to final delivery.
At Supro MFG, our engineering team bridges the gap between complex drawings and manufacturability. For your metal spinning projects, we offer a complimentary Design for Manufacturing (DFM) review service to optimize wall thickness consistency, material utilization, and die geometry prior to mass production. By leveraging advanced CAD/CAM simulation technology, we effectively mitigate common quality risks, such as stretching cracks and dimensional deviations. We sign legally binding non-disclosure agreements to ensure your proprietary intellectual property is 100% protected, and we deliver high-precision components that meet your stringent aerospace, automotive, or industrial engineering standards and are ready for immediate production.
At Supro MFG, flawless execution starts with strict metallurgy control. We source certified raw materials—including aluminum, stainless steel, and titanium alloys—directly from top-tier mills, providing 100% traceable Material Test Reports (MTR) to eliminate global sourcing risks. Before metal spinning begins, our engineering team precisely calculates the blank diameter and grain orientation to prevent grain-stretching failure. Utilizing precision CNC laser cutting and deburring for blank preparation, we ensure perfectly smooth disc edges, completely eliminating micro-cracking and structural thinning under intensive roller pressure. We guarantee every component complies strictly with ASTM, DIN, or your proprietary international standards.
At Supro MFG, precision alignment begins with our in-house tooling engineers who specialize in manufacturing-driven mandrel design. Utilizing advanced CAD/CAM software, we transform your STEP/IGES files into high-durability spinning mandrels machined from premium Cr12MoV or H13 die steel. This robust tooling foundation minimizes springback and ensures tight tolerances across long-run metal spinning productions. By controlling the entire mold-making process in-house, we reduce upfront tooling lead times by 30% and mitigate overseas communication errors. Furthermore, all custom mandrels are 100% customer-owned, meticulously maintained, and stored in our climate-controlled facility for your exclusive repeat orders.
Outdated manual metal spinning processes often result in uneven wall thickness and structural failure. At Supro MFG, we eliminate these risks by utilizing heavy-duty, automated CNC metal spinning machines. Our advanced multi-axis equipment is equipped with programmed machining sequences and real-time roll monitoring capabilities, effectively preventing material thinning and the formation of micro-cracks caused by stretching. This automated precision process maintains dimensional tolerances within ±0.15 mm, ensuring that the first batch of products is identical to the 10,000th batch. By replacing human error with closed-loop CNC control, we produce flawless, stress-relieved hollow components that perfectly meet the stringent quality standards of buyers in the Western aerospace, automotive, and industrial sectors.
Untreated spun metal parts often suffer from sharp edges, irregular shapes, and severe burrs, which can lead to failed welds and assembly bottlenecks. At Supro MFG, we eliminate these quality risks through automated secondary processing. Using trimming blades integrated into the die and 5-axis CNC laser cutting technology, we deliver perfectly square edges, uniform flanges, and custom chamfers optimized for robotic welding. Every batch undergoes mechanical deburring and 100% edge profile verification. This precision surface finishing ensures our spun parts align perfectly with your mating components.
Discovering defective parts after delivery is a costly nightmare for buyers. At Supro MFG, backed by our ISO 9001 and IATF 16949 management systems, our specialized quality control laboratory performs 100% dimensional, wall thickness, and concentricity inspections on every batch of metal spin-formed parts. Using advanced coordinate measuring machines (CMMs) and ultrasonic thickness gauges, we ensure that products strictly meet your specified geometric tolerance requirements. Prior to shipment, we provide comprehensive PPAP (Production Part Approval Process), FAI (Final Acceptance Inspection), and material traceability reports to ensure that every spun component arrives production-ready, defect-free, and fully compliant with your quality standards..
one-stop Metal spinning Fabrication services
Our precision CNC metal spinning forming process enables the production of metal spinning parts with complex geometries. However, for specialized spinning product requirements, we continue to employ hand-made spinning techniques to ensure cost-effective, efficient, and high-quality one-stop metal spinning manufacturing solutions.
Product Design and Optimization
Rapid Spinning Prototyping & DFM Analysis
Spinning Die Design and Manufacturing
Small-to-Medium Batch Spinning Manufacturing
How Does
custom CNC metal Spinning Work?
CNC spinning technology has been widely adopted, with computer-controlled numerical programs ensuring greater precision and efficiency in the metal spinning process. This enables the production of unparalleled product accuracy and complex geometries through CNC spinning commands.
Similar to all CNC machining equipment, product blueprints are converted into CNC code via CAM from CAD models, then transmitted to the CNC spinning machine to form operational instructions. These CNC spinning instructions direct the spinning tool to execute precise rotational, translational, and pressure-applying forming operations. This ensures reduced human error and achieves the final product shape with accuracy.
Unlike traditional manual spinning manufacturing, CNC spinning fundamentally relies on computer-controlled instructions to replace manual operation. When high-speed rotating metal materials are shaped using handheld tools, varying pressures can cause product deformation or uneven thickness.
Although CNC metal spinning offers irreplaceable advantages over manual spinning, manual spinning remains a more flexible and efficient manufacturing solution for rapid prototyping and small-batch production of metal spun parts. With over 30 years of expertise in manual spinning, our manual spinning manufacturing delivers quality comparable to CNC spinning machines.
metal bending services
Sheet metal spinning material solutions
Mulan MFG offers a robust stockpile of materials to help your products can get up and running with a quick turnaround.
Within an hour, the metal material is ready for the sheet metal bending process.
Aluminum Alloy
stainless steel
Copper
steel
Other
1060
6061-T6 / T5
6063
5052-O
5083
5754
7075
2A12
201
303
304
316
316L
420
430
440
H62
H65
H68
H90
C10100
C11000
C12000
C51100
Q235 - F
Q255
16Mn
12CrMo
# 45
20 G
Corrugated Steel Sheets
Fluorocarbon color steel
Embossed panels
Galvanized sheet
Get a list of sheet metal materials
0.6mm - 200mm
1220mm * 2440mm
Custom roll & Strips
0.05mm - 300mm
1220mm * 2440mm
Custom roll & Strips
0.5mm - 6mm
1200mm * 4000mm
Custom roll & Strips
0.5mm - 500mm
1500mm * 6000mm
Custom roll & Strips
- Laser Cutting
- Wire cutting
- CNC Machining
- bending
- stamping
- deep drawing
- welding fabrication
- Anodizing
- Painting
- Powder Coating
- More Customized Solutions
Why {Choose Supro MFG}
Great metal spinning capability
Supro MFG boasts a professional engineering design team. Leveraging extensive experience in manufacturing custom spun metal parts and advanced CNC spinning equipment, we can meet diverse demands for complex structures and stringent quality requirements.
Utilizing state-of-the-art CNC machining, wire cutting, and EDM equipment for mold fabrication, we deliver highly precise complex spinning dies within short lead times. After debugging, these molds and tools are ready to produce your required parts with optimal quality outcomes. This is what sets us apart in the industry.
For custom spun products, we handle metal materials ranging from 0.02 inches to 0.25 inches in thickness. We produce large spun products with diameters up to 50 inches, maintaining minimum tolerances within ±0.002 inches.
- Raw Materials: Sourced exclusively from internationally renowned steel manufacturers to ensure precise material composition and consistent thickness. Batch numbers are recorded for all raw materials to guarantee traceability.
- Molds: Precision-machined molds undergo high-accuracy inspections using CMM and other equipment. This ensures dimensional accuracy within 1% tolerance for external curves and surface roughness ranging from RA0.4 to RA0.8.
- Product Dimensions: Consistent quality is maintained through continuous sampling inspections during production to prevent human error-related risks. Inspection rates start at 20% and may escalate to 100% until issues are resolved.
- Product Scrap:We commit to fully isolating defective products and strictly prohibit the reuse of repaired items or materials.
- Competitive Factory Pricing: We provide economically competitive factory-direct pricing. All costs are reasonably allocated to manufacturing steps, ensuring consistent production costs from factory to customer delivery without intermediary markups.
- One-Stop Manufacturing Solutions:
Whether for rapid prototyping or volume production, we deliver comprehensive technical solutions spanning product design, mold design/manufacturing, design optimization, rapid prototyping, and mass production. Technical support is also available for non-order scenarios. - On-Time Delivery:
We excel at proactively addressing customer needs. Whether handling rush orders or small-batch production, we treat every request with utmost care. Once delivery timelines are mutually agreed upon, we ensure punctual fulfillment or even early completion and shipment. - Reliable After-Sales Service:
Supro MFG maintains indefinite after-sales responsibility for all custom spun metal products. Should any quality issues arise, our service team promptly provides solutions and assumes full accountability for the consequences. - Complimentary Mold Maintenance:
We provide free maintenance and upkeep for all molds, storing them indefinitely. You may place orders at any time without concern for mold quality degradation. Mold lifespan remains unaffected by external factors (except production volume).
Advantages and Disadvantages of Metal Spinning
Advantages
Metal spun parts belong to the category of hollow products. As seamless metal components, they offer superior quality stability compared to welded assemblies. Their continuous material structure enables the product to withstand higher internal pressures and external forces.
During spinning, the material undergoes compression, which densifies the internal grain structure of the metal. This process improves mechanical properties, increasing tensile strength, toughness, and overall strength. This advantage is particularly evident in applications requiring both lightweight characteristics and the ability to withstand high-strength pressure loads.
Metal spinning dies typically feature simple and robust structures. Compared to the high tooling investments required for stamping, drawing, casting, and other processes, metal spinning dies offer lower maintenance and modification costs, higher manufacturing efficiency, and greater economic competitiveness.
At Supro MFG, we typically analyze customer order requirements. For low-volume production or rapid spinning prototyping, we recommend inexpensive rapid molds. Combined with manual spinning or automated spinning machines, these enable rapid debugging and production within a short timeframe—generally not exceeding 10 days. For high-volume production, we can manufacture more rigid metal molds based on proven manufacturing solutions, enabling swift completion of the mold debugging process and effectively reducing the time cost associated with mold debugging.
The dimensions of raw materials for spinning require precise calculation and testing, enabling significantly reduced material waste. Typically, spinning starts with circular sheet blanks arranged more densely, minimizing scrap generation and thereby lowering costs. In contrast, stamping or drawing processes generally require excess material for stretch compensation.
Disadvantages and Limitations
Compared to manufacturing processes such as stamping or drawing, metal spinning offers no advantage in production efficiency. It requires extended processing times and continuous application of pressure to raw materials. This low efficiency becomes more pronounced during high-volume manufacturing.
Maintaining consistency in spun metal parts is challenging. Material vibration or deformation frequently occurs during automated spinning, leading to product damage or dimensional nonconformity. Particularly in manual spinning processes, part consistency and quality depend entirely on the operator's skill level. This method is only suitable for small-batch production.
Metal spinning is only applicable to axially symmetric shapes such as cones, parabolic surfaces, hemispheres, circular tubes, and discs.
When products exhibit quality issues such as deformation, cracks, or dents, evaluating them from both cost and technical perspectives reveals high repair difficulty and low success rates, leaving scrapping as the only viable option.
Raw materials are subjected to high-speed rotation, creating numerous safety hazards. When issues such as material deformation or uneven thickness arise, products can be flung out by centrifugal force. Therefore, safety operating manuals and personnel training procedures must be strictly adhered to at all times.
Custom Spinning Die Design and Manufacturing
Metal spinning dies are the critical core elements determining product quality, dictating the final shape and dimensions of spun metal parts. Proper die design and configuration enable the production of precision, high-quality spun components across diverse industries and applications. They accommodate varying materials, thicknesses, product structures, and surface finishes, serving as the essential medium for achieving required shapes and dimensional accuracy.
Supro MFG adheres to stringent spinning die design specifications while flexibly integrating multiple precision manufacturing techniques. This enables the creation of complex-shaped, high-precision spinning dies. Typically crafted from high-quality tool alloy steel or hardened aluminum alloys, these dies undergo surface machining and engraving via advanced CNC machines. This process achieves precise dimensional accuracy and surface finish, meeting the design precision and functionality requirements of spun products while extending die service life.
We provide comprehensive design and manufacturing solutions for spinning dies. When clients possess only product sketches or samples, we offer complimentary reverse engineering and die design services. We then deeply optimize the die based on the product's application and functional requirements, ensuring all quality risks are eliminated through sound spinning die design before clients commit to significant tooling costs.
Whether you require rapid spinning prototypes or small-to-medium batch production, Supro MFG delivers customized spinning die design and manufacturing services. We ensure seamless production processes, flawlessly execute your design concepts, and provide complimentary, lifelong maintenance for your dies.
Contact our spinning die technical engineers today for expert manufacturing solutions.
Custom sheet metal spinning types
Spherical spinning parts
At mulan MFG, we use cnc punching services to process large-area holes, embossing and other parts design. This is a process very suitable for large-scale production, achieving rapid turnover and economic benefits.
No need to cooperate with stamping dies, suitable for rapid prototyping or small batch operation of complex parts. Compared with plane laser cutting and metal stamping, CNC punching services have some unique capabilities and advantages.
hemispherical spinning parts
We have advanced 10.000kw industrial-grade laser cutting equipment, which handles fine engraving and cutting details on the metal sheet metal, and can cut stainless steel plates within 30mm at the maximum. The flat cut cross section can reduce the cost of secondary processing.
And to achieve a precision tolerance of ±0.05mm, more than 80 kinds of metal plate materials can be selected.
Laser cutting service is suitable for sheet metal prototypes and mass production, and is time-efficient and economical.
At Mulan MFG, we can ship semi-finished products after laser cutting on the same day.
tubular spinning parts
With our extensive experience in sheet metal bending and our advanced equipment, we can handle sheet metal bending parts manufacturing tasks for any industry.
We can manufacture exactly what is needed: angles, "U" shapes, multiple bent shapes, "C" shapes, etc., as well as all complex product designs. Provides the same dimensional and fit tolerance consistency, +/- .05mm accuracy on features or edges.
Mulan MFG will always exceed your quality expectations.
sealed cylindrical spinning parts
Generally, sheet metal bending parts need to be equipped with a lot of fasteners to facilitate assembly and splicing. This is a very economical solution and can be installed by welding, riveting, etc.
We have a warehouse of fasteners, sheet metal fasteners such as American and British systems, and we support customized special-shaped fasteners.
conical spinning parts
Generally, sheet metal bending parts need to be equipped with a lot of fasteners to facilitate assembly and splicing. This is a very economical solution and can be installed by welding, riveting, etc.
We have a warehouse of fasteners, sheet metal fasteners such as American and British systems, and we support customized special-shaped fasteners.
disc-shaped spinning parts
Generally, sheet metal bending parts need to be equipped with a lot of fasteners to facilitate assembly and splicing. This is a very economical solution and can be installed by welding, riveting, etc.
We have a warehouse of fasteners, sheet metal fasteners such as American and British systems, and we support customized special-shaped fasteners.
tank-shaped spinning parts
Generally, sheet metal bending parts need to be equipped with a lot of fasteners to facilitate assembly and splicing. This is a very economical solution and can be installed by welding, riveting, etc.
We have a warehouse of fasteners, sheet metal fasteners such as American and British systems, and we support customized special-shaped fasteners.
annular spinning parts
Generally, sheet metal bending parts need to be equipped with a lot of fasteners to facilitate assembly and splicing. This is a very economical solution and can be installed by welding, riveting, etc.
We have a warehouse of fasteners, sheet metal fasteners such as American and British systems, and we support customized special-shaped fasteners.
No design files? Let Supro MFG do it for you.
We often come across clients who have no professional design drawings and documentation, only a creative idea, which leads to the project being at a standstill.
If you are in this situation, then contact our team of experts.
Supro MFG, as an industry-leading custom metal fabricator, has an ever-experienced team of engineers who utilize their extensive fabrication experience and technical expertise to build your idea into a real product and create design files such as STEP/STP/SLDPRT/DXF/PDF/PRT/DWG/AI.
That’s what makes SUPRO MFG so great, and 2,000 corporate, entrepreneurial, artist, and other purchasers from around the world enjoy working with us and benefiting from our one-stop manufacturing services.
Application of Metal Spinning Parts
LED lighting
automotive
commercial food
artworks
electronics
Medical
musical instruments
aerospace and defense
Industrial
online custom metal spinning services
Only 4 steps
Contact our experts team and experience the efficiency and economic benefits of digital metal fabrication services.
Upload Design Files
STL , STEP (.stp), IGES (.igs), (.ZIP), or PDF.
Also be a sample or an idea
Quote & Design Analysis
Instant factory quotes and DfM reports, the most reasonable solution.
Manufacturing Begins
Digital processes can initiate order tasks within 24 hours.
On-Time Delivery
Keeping delivery promises, approved by 3000+ Global Company buyers.
F.A.Q
Supro MFG is a professional Chinese sheet metal manufacturer, we specialize in the design and manufacture of custom sheet metal parts fabrication and Sheet metal Prototype, ISO 9001-2015 certified, providing a full range of sheet metal parts fabrication solutions and technical support .
We are not a trader, all products are done in our in-house factory, we have a reliable supplier of surface treatment, heat treatment, and standard parts to support us, and we can provide you with economical sheet metal manufacturers ex-works prices.
We have our own sheet metal fabrication factory, welding workshop, laser cutting workshop, and precision CNC Machining workshop, with a total area of more than 3000 square meters, with 12 technical engineers, 36 skilled workers, 6 quality engineers, and a professional English sales team.
Of course, we keep all the customer's information confidential, sign a non-disclosure agreement, our factory will not allow unrelated personnel to enter without authorization, your product design and patented technology will be protected by us.
Yes, we have rich manufacturing experience and technical knowledge, can draw professional design files (including: STL/STEP/IGES/PDF/CAD, etc.) according to your ideas, and provide you with free manufacturability solutions. Actively help you optimize product design, reduce costs, and make your product design more dynamic in the sales market.
From raw materials to finished packaging, we will provide you with reliable quality inspection reports and photos at any time. If you need an authoritative third-party inspection report, we can also actively cooperate to ensure that you will receive high-quality products.
T/T, Paypal western union, L/C, and other channels you suggest (contact us for negotiation).
Yes, we can provide system documentation for PPAP level3.
Our quotations are all factory quotations from manufacturers, and all manufacturing costs and labor costs are traceable. We all use the raw materials of authoritative manufacturer brands, refuse to cut corners, and all products are subject to our quality control.
While there are plenty of small businesses that offer you a very low price, the quality can be at risk.
What your project needs more is the guarantee of high-quality products and on-time delivery, not high-risk.
We do not set a minimum order quantity. Whether you need a small amount of prototypes or large quantities, we will treat you equally and provide you with a full range of manufacturing services and technical support.
We will develop a detailed production plan, every point in time will be practically verified, and all processes are under our monitoring to ensure on-time delivery of high-quality products. (Except for the influence of force majeure factors)
Once there is a signal of delay, we will organize more production capacity to ensure on-time delivery.
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Do you want to manufacture metal spinning products?
Worried about your thin-wall design?
Need a budget-friendly option for low-volume prototyping?
Ask our engineers about our modular or wood/composite tooling solutions.
Our CNC programmers will analyze your CAD profile and return a stress-distribution summary within 24 hours.