CNC Machined Parts

When your project demands the pinnacle of accuracy, durability, and complex geometry, look no further than professional CNC machining services. Our expertise spans the entire spectrum of precision manufacturing, delivering components that meet the most stringent specifications. Whether you require intricate CNC Milling Service Parts with complex contours and pockets, or robust rotational components from our CNC Lathe Service Parts division, we have the technology and skill to execute. For projects requiring a fully bespoke approach from material selection to final finishing, our CNC Custom Fabrication Parts service offers complete flexibility. At the core of everything we produce are CNC Precision Machined Parts, where tolerances are held to microscopic levels, ensuring flawless fit, function, and performance in your assembly.


The quality and reliability of a CNC Machined Part are directly defined by its technical parameters and the capabilities of the manufacturing process. We utilize advanced multi-axis CNC machining centers and Swiss-type lathes, coupled with a rigorous quality management system, to produce parts that excel in every metric. Below are the detailed specifications and material options that define our manufacturing scope.

Standard Machining Capabilities & Tolerances

  • Machining Processes: 3-axis, 4-axis, & 5-axis milling; CNC turning; Swiss machining; CNC drilling & tapping.
  • Standard Tolerances: +/- 0.005 inches (+/- 0.127 mm).
  • Precision Tolerances: Down to +/- 0.0005 inches (+/- 0.0127 mm) for critical features.
  • Surface Finish: Standard finish at 125 µin. Can achieve finishes as fine as 8 µin (0.2 µm Ra) with secondary operations.
  • Maximum Part Size (Milling): 48" x 24" x 24" (1219 mm x 610 mm x 610 mm).
  • Maximum Part Size (Turning): Diameter: 12" (305 mm), Length: 24" (610 mm).

Available Materials & Properties

Material Category Common Alloys/Grades Key Properties Typical Applications
Metals Aluminum (6061, 7075), Stainless Steel (304, 316), Steel (1018, 4140), Brass, Copper, Titanium High strength-to-weight ratio, corrosion resistance, thermal/electrical conductivity, durability. Aerospace frames, medical instruments, automotive components, hydraulic fittings, electrical connectors.
Plastics & Composites ABS, Nylon (PA6, PA66), PEEK, Delrin (Acetal), PTFE (Teflon®), Polycarbonate Lightweight, electrical insulation, chemical resistance, low friction, good impact strength. Insulators, bearing surfaces, seals & gaskets, prototypes, consumer electronics housings.

Secondary Services & Finishes

  • Deburring & Edge Breaking: Manual and automated processes for safe, clean edges.
  • Surface Finishing: Bead blasting, polishing, anodizing (Type II & III), powder coating, passivation, plating.
  • Heat Treatment: Annealing, stress relieving, hardening & tempering to alter material properties.
  • Quality Inspection: First-article inspection (FAI), in-process checks, and final validation using CMM, optical comparators, and surface profilometers.

Hot Products

  • Precision CNC Milling

    Precision CNC Milling

    Various customers and OEM's who need high-volume Youlin® Precision CNC Milling services have confidence in Youlin Manufacturing for on-time delivery of their advanced manufactured parts. Our commitment to using superior Precision CNC Milling manufacturing equipment, backed by our dedication and decades of experience, is what sets the production professionals at Youlin from the competition.
  • Aluminum CNC Milling

    Aluminum CNC Milling

    Over many years of experience in manufacturing Youlin® Aluminum CNC Milling parts, Youlin's machinists and engineers understand the physical performance of all the major aluminum alloys. Their troubleshooting insight leads to faster delivery, increased reliability and lower component costs. Leading professionals in a range of industries trust Youlin as their 1st solution resource in Aluminum CNC Milling.
  • Hot Forging

    Hot Forging

    Youlin® Hot forging is known to produce some of the strongest manufactured parts and components compared to other metal manufacturing processes. We produce hot forging parts and components from a few grams to more than a few hundred kilograms. For hot forging parts with special surface finish requirements, we provide a broad range of secondary operation including machining, surface finishing, etc.
  • Plastic Injection Molding Services

    Plastic Injection Molding Services

    We specialize in high-quality Youlin® plastic injection molding services and mold tools. We have all equipment and expertise in-house to provide full production-quality CNC machining services to make tools from a variety of materials and can produce 50 to 100,000+ finished parts in a wide variety of resins.
  • Automobile And Motorcycle Aluminum Shock Absorber Parts

    Automobile And Motorcycle Aluminum Shock Absorber Parts

    Youlin is a premier provider of automobile and motorcycle aluminum shock absorber parts. One of our core service offerings is Youlin® automobile and motorcycle aluminum shock absorber parts. Our specialty focus on progressive metal stampings utilizes a combination of high-speed presses and progressive dies in combination with 4 slide & multi-slide presses to provide the most cost effective solution for high volume manufacturing. We design & build specialized manufacturing cells utilizing automation when appropriate.
  • Aluminum Profile Square Pipe

    Aluminum Profile Square Pipe

    China Factoy Customized Youlin® Aluminum Profile Square Pipe Suppliers.We provide Customized CNC Machining Services of any complexity for the production of Aluminum Profile Square Pipe. 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.

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