We specialize in CNC metal machining for a wide range of materials, including aluminum, stainless steel, and copper. Operating from our fully-equipped factory in Shenzhen, we combine advanced machinery with streamlined production processes to deliver high-quality, custom CNC metal parts. Partnering with us can help you reduce project costs by up to 10% while ensuring fast turnaround and precise results.
CNC Quick Quote
Customize our CNC metal machining services to get high-quality metal parts that drive your project’s success.
With our prototype manufacturing services, we turn your designs into reality. Our team, with 15 years of industry experience, helps validate designs and accelerate product development.
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We provide cost-effective and flexible CNC machining solutions, ensuring consistent quality. Compared to traditional suppliers, our services can save up to 10% in project costs.
CNC Quick Quote
Our rapid CNC machining services deliver fast turnaround while ensuring high-quality production of metal parts that meet customer requirements, keeping your projects on schedule.
Read MoreCustomize aluminum and stainless steel turned parts and enjoy premium after-sales service.
Common aluminum alloys include 6061-T6, 7075-T6, 5052, and 2024. Due to their lightweight, high strength, excellent thermal conductivity, and good anodizing performance, these materials are widely used in automotive parts, electronic housings, robotic structures, and medical devices.
Looking for CNC aluminum machining services? We are fully equipped with advanced 3-axis, 4-axis, and 5-axis CNC machining centers, capable of producing complex geometries with tolerances up to ±0.01mm.
Common stainless steel grades include 303, 304, 316L, 410, 420, and 17-4PH. Similar to aluminum, stainless steel is one of the most commonly used materials in CNC machining. It is widely applied in industrial machinery, medical devices, energy systems, and food processing equipment.
During machining, we optimize tool paths and cutting parameters to overcome stainless steel’s high hardness and low thermal conductivity, ensuring dimensional stability and excellent surface quality.
We generally handle small-batch orders starting from 60 pieces, but we can be flexible based on customer requirements.
| Category | Standard Metal machining | precision Metal machining |
|---|---|---|
| Positioning Accuracy | ±0.05 mm ~ ±0.01 mm | ±0.025 mm ~ ±0.01 mm |
| Repeatability | ±0.02 mm ~ ±0.01 mm | ±0.01 mm ~ ±0.008 mm |
| Tolerances | ±0.08 mm ~ ±0.014 mm | ±0.05 mm ~ ±0.01 mm |
| Size Range | ≤ 500 mm | ≤ 300 mm |
| Production Volume | Prototoyping: 1-60 pcs Low volume: 60-500 pcs High volume: Above 501 pcs |
Prototoyping: 1-60 pcs Low volume: 60-500 pcs High volume: Above 501 pcs |
| Lead Time | Most projects are completed within a week. Simple parts can be delivered in as fast as 1–2 days. |
Most projects are completed within a week. Simple parts can be delivered in as fast as 1–2 days. |
Browse our metal library and select from the sidebar to view properties and characteristics
Aluminum is a versatile, lightweight metal favored in CNC machining for its excellent machinability, strength-to-weight ratio, and corrosion resistance. It provides high precision and smooth finishes, ideal for intricate components in automotive, aerospace, and electronics.
Copper is known for its excellent electrical and thermal conductivity. It is often used in electrical components, heat exchangers, and various industrial applications. Copper offers good machinability and corrosion resistance.
Bronze is an alloy consisting primarily of copper, commonly with about 12-12.5% tin and often with the addition of other metals and sometimes non-metals. It is known for its hardness, durability, and resistance to corrosion.
Steel is an alloy of iron and carbon, and sometimes other elements. Because of its high tensile strength and low cost, it is a major component used in buildings, infrastructure, tools, ships, machines, appliances, and weapons.
Alloy steel is steel that is alloyed with a variety of elements in total amounts between 1.0% and 50% by weight to improve its mechanical properties. Common alloying elements include manganese, nickel, chromium, molybdenum, vanadium, silicon, and boron.
Stainless steel is known for its excellent corrosion resistance and strength. It is widely used in medical devices, food processing equipment, marine applications, and architectural components due to its durability and aesthetic appeal.
Magnesium is the lightest structural metal, offering an excellent strength-to-weight ratio. It has good machinability and damping capacity, making it suitable for applications where weight reduction is critical.
Brass is a copper-zinc alloy known for its excellent machinability, corrosion resistance, and attractive golden appearance. It is commonly used in fittings, valves, gears, and decorative parts, making it a versatile material for both functional and aesthetic applications.
Note: The metals above are for reference only. Please reach out to us for more customized options! We are committed to fulfilling all your material requirements!
Upload your CAD file to get a quick quote and start CNC metal parts production within 2 hours.
CNC Quick QuoteBefore production, we provide Design for Manufacturability (DFM) feedback to achieve cost-effective and efficient metal machining.
| Minimum Wall Thickness | Structural Design |
|
Aluminum alloys: minimum wall thickness ≥ 1.5mm; stainless steel: minimum wall thickness ≥ 2mm, to ensure part rigidity and machining stability. Avoid excessively thin or long cantilever structures, which may cause deformation or vibration. For holes or slots: diameter ≥ 3mm to ensure smooth tool access. |
Use chamfers and fillets to reduce stress concentration and improve cutting stability. Uniform wall thickness, ribs, and fillet transitions (r ≥ 0.5mm) can enhance the rigidity of thin-walled parts. |
| Tolerance | Thread Design |
| Standard tolerance: ±0.05mm to ±0.01mm, depending on part precision requirements.
Precision parts (assemblies, transmission components, etc.): ±0.01mm or higher. Allocate tolerances reasonably in design to avoid excessive costs. |
Internal thread depth ≤ 3× diameter; deep threads require thread milling or metal inserts.
External threads should specify pitch to avoid machining errors. Standard thread range: M2–M12; special threads can be made via finishing or rolling. |
Surface Treatment |
Tolerance Levels |
| Aluminum: anodizing, sandblasting, painting, powder coating.
Stainless steel: polishing, brushing, electroplating, passivation. Allowance for post-processing: grinding or polishing 0.02–0.05mm; mirror surface Ra ≤ 0.8μm. Secondary operations (tapping, drilling) should preferably be completed during CNC machining to minimize manual errors. |
Standard: ±0.1mm, for non-critical surfaces, low cost.
Precision: ±0.01mm, requires high-precision machines, cost increases by 30–50%. |
Precision and quality are at the core of everything we do
At Rapid-Model, quality is not just a process - it's our culture. We implement rigorous quality control measures at every stage of production:
Our commitment to quality ensures that every part we produce meets or exceeds your specifications and expectations.
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1rst Floor, A4 Building, Linpokeng Industrial Park, 165 Nanpu Road, Shangliao Community, Xinqiao Street, Bao'an District, Shenzhen 518104
