Metal CNC Machining Parts

For industries demanding the highest levels of accuracy and repeatability in complex components, Metal Precision CNC Machining is the definitive solution. Our advanced CNC systems produce high-performance cnc machining parts from a wide array of raw materials, engineered to meet stringent specifications. A cornerstone of our service is Aluminum CNC Machining, leveraging the material's excellent strength-to-weight ratio and machinability for parts in aerospace, automotive, and robotics. Whether you require prototypes or full-scale production runs, our expertise in CNC Machining Aluminum and other metals ensures every component is fabricated with meticulous attention to detail, surface finish, and dimensional integrity.


The manufacturing of Metal CNC Machining Parts is a sophisticated process governed by precise parameters that define the final product's quality, functionality, and fit. Understanding these specifications is crucial for engineers and procurement specialists. Below are the key material and machining parameters we meticulously control.

Common Material Grades & Properties

  • Aluminum 6061-T6: Excellent weldability, corrosion resistance, and medium strength. Ideal for structural frames and automotive parts.
  • Aluminum 7075-T6: High strength, comparable to many steels. Used in aerospace and high-stress applications.
  • Stainless Steel 304: Superior corrosion resistance and formability. Common in food processing and marine hardware.
  • Stainless Steel 316: Enhanced corrosion resistance, especially to chlorides. Suited for chemical and medical applications.
  • Carbon Steel 1018: Good balance of strength, ductility, and machinability. Widely used for pins, shafts, and fixtures.
  • Carbon Steel 1045: Higher strength and wear resistance. Excellent for gears and structural components.
  • Brass C360: Outstanding machinability and good corrosion resistance. Perfect for decorative and electrical components.

Standard Machining Tolerances

Feature Type Standard Tolerance High Precision Tolerance
Linear Dimensions ±0.005" (0.127 mm) ±0.001" (0.025 mm)
Hole Diameters ±0.002" (0.051 mm) ±0.0005" (0.013 mm)
True Position (GD&T) Ø 0.010" (0.254 mm) Ø 0.002" (0.051 mm)
Surface Finish (Ra) 63 μin (1.6 μm) 32 μin (0.8 μm) or better

Key Process Parameters

  • Maximum Part Size: Up to 60" x 30" x 24" (1524 mm x 762 mm x 610 mm) on our large-format CNC mills.
  • Axis Capability: 3-axis, 4-axis, and 5-axis simultaneous milling for complex geometries.
  • Tooling: Utilization of carbide and diamond-coated end mills for optimal material removal and finish.
  • Coolant Systems: High-pressure through-spindle coolant for efficient chip evacuation and thermal management.
  • Inspection: First-article and in-process inspection using CMM (Coordinate Measuring Machine) and laser scanners.

Hot Products

  • Aluminum Forging

    Aluminum Forging

    Youlin uses proven Youlin® aluminum forging processes to produce parts that match our customers' exact requirements. Our design engineers will work with you, as needed, to optimize your designs for faster and more efficient production, without sacrificing part performance. We offer full technical support, secondary machining, variety of surface finishing processes, warehousing, assembly services, and more. Youlin is a true one-stop-shop for forged aluminum parts.
  • CNC Aluminum V Flat Belt Pulley Auto Engine

    CNC Aluminum V Flat Belt Pulley Auto Engine

    Ningbo Youlin Trading Co., Ltd. is a professional CNC aluminum V flat belt pulley auto engine manufacturer and supplier in China. All our industries served are agricultural machinery, automotive industry, construction machinery, lifting industry, oilfield industry, etc. Besides forging, we could also supply other value added services for finished products. We have produced CNC aluminum V flat belt pulley auto engine for many years, looking forward to reaching a long-term cooperative relationship with you.
  • High Precision CNC Machined Eccentric Pipe Reducer Fabrication

    High Precision CNC Machined Eccentric Pipe Reducer Fabrication

    Ningbo Youlin Trading Co., Ltd. is a professional high precision CNC machined eccentric pipe reducer fabrication manufacturer and supplier in China. For more than 10 years, Youlin located in Ningbo, China, is the professional Forging company specialized in supplying our customers with high quality custom steel forging components. All our industries served are agricultural machinery, automotive industry, construction machinery, lifting industry, oilfield industry, etc. Besides forging, we could also supply other value added services for finished products.
  • Anodized Aluminum CNC Service Machining Metal Parts

    Anodized Aluminum CNC Service Machining Metal Parts

    China Factoy Customized Youlin® anodized aluminum CNC service machining metal parts Suppliers.We provide Customized CNC Machining Services of any complexity for the production of automobile and motorcycle support block. We have many experienced engineers that we can gives you a CNC machining quote within few times. Requesting a quotation for CNC machining is easy: just send me your files with drawings to my email, 3D-models or sketches in any popular format. We inspect the parts and guarantee their quality.
  • Precision Aluminum Forging Parts

    Precision Aluminum Forging Parts

    Ningbo Youlin Trading Co., Ltd. is a professional manufacturer and supplier of precision aluminum forging parts in China. We specialize in forged aluminum 6061-T6 components with die casting, forging & CNC machining, tight tolerance ±0.05mm, and customized services. Widely used in motorcycles, plumbing fittings, automotive, industrial, and other fields. Certified with ISO9001, ISO14001, IATF/TS16949, and RoHS. We provide OEM/ODM solutions and welcome long-term cooperation.
  • Fabrication Plastic Precision Processing

    Fabrication Plastic Precision Processing

    Ningbo Youlin Trading Co., Ltd. is a large-scale Fabrication Plastic Precision Processing manufacturer and supplier in China. We have been specialized in Customized CNC Machining Services of any complexity for the production of Fabrication Plastic Precision Processing for many years. Our products have a good price advantage and cover most of the European and American markets. We look forward to becoming your long-term partner in China.

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