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CNC Milling

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CNC Milling

Custom Online CNC Milling Services

On-demand CNC milling services for prototypes and production parts. High precision CNC milling up to 0.008 mm. Milled parts ready in as fast as 7 day. Get an instant CNC quote today.

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Online CNC Milling Services for Custom Parts

From 3-axis basics to intricate 5-axis projects, our precision CNC milling makes your designs come alive with unmatched accuracy and craftsmanship.

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3-Axis CNC Milling

With 3-axis CNC milling, precision meets affordability. It’s your go-to for simple parts that still demand accuracy.

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4-Axis CNC Milling

Think of a design, and 4-axis milling can probably make it. Multi-sided machining just got a whole lot simpler.

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5-Axis CNC Milling

For those complex and intricate parts, 5-axis milling is the master key. Bring your most ambitious designs to life.

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CNC Milling Surface Finishes

Gain access to quality surface finishing for custom CNC milled parts to remove aesthetic flaws and improve the appearance of your products. We also provide rigid protection and additional resistance and strength to your parts through superior surface finishes.

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As Machined

As machined finish leaves the surface straight from the CNC machine, providing a cost-effective option with tool marks.

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Anodizing

Anodizing increases corrosion resistance and wear properties, while allowing for color dyeing, ideal for aluminum parts.

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Polishing

Polishing achieves a high gloss finish, reducing surface roughness and enhancing the aesthetic appeal of metals.

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Sand Blasting

Sand blasting uses pressurized sand or other media to clean and texture the surface, creating a uniform, matte finish.

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Tumbling

Tumbling smooths and polishes small parts by friction and abrasion in a barrel, offering a consistent but slightly textured finish.

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Electropolish

Electropolish is a chemical process that smooths and brightens surfaces while improving corrosion resistance.

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Alodine

Alodine coating provides corrosion protection and improves paint adhesion, mainly used on aluminum surfaces.

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Heat Treatment

Heat treatment alters the mechanical properties of metal to increase its hardness, strength, or ductility.

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Brushed Finish

A brushed finish creates a unidirectional satin texture, reducing the visibility of marks and scratches on the surface.

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Powder Coating

Powder coating applies a thick, wear-resistant layer with excellent color and texture options, suitable for a variety of surfaces.

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Electroplating

Electroplating bonds a thin metal layer onto parts, improving wear resistance, corrosion resistance, and surface conductivity.

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Black Oxidize

Black oxidize is a conversion coating for ferrous metals that improves corrosion resistance and minimizes light reflection.

Yinchen ensures precision with our CNC Milling Tolerance standards. We committo exact measurements, benefiting clients with consistent, high-quality results,optimized for search visibility. Our standard tolerances for CNC milled metals are lSO2768-mandlS0 2768-cfor plastics. Tolerances for CNC Milling

3-Axis 4-Axis 5-Axis
Maximum Part Size 1000x500x500mm 1000x500x500 mm 4000x1500x600 mm
Minimum Part Size 5x5x5mm 5x5x5mm 5x5x5mm
General Tolerances ±0.1 mm ±0.1 mm ±0.05 mm
Lead Time Delivery of simple parts can be as fast as 1day. 5 bussiness days for most projects. 5 bussiness days for most projects.
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Design Guidelines CNC Milling Design Guidelines

Recommended Size
Radii Internal radii should be at least 1/3 of the cavity depth.Use larger radi whenever possible.
Threads and Tapped Holes Diameter p 1.5-5 mm, depth: 3 times the diameter
Diameter φ 5 mm or larger, depth: 4-6 times the diameter.
Yinchen can produce threads of any specification and size as required by the customer
Minumum Wall Thickness For metals: 0.8 mm; For plastics: 1.5 mm. Thicker walls ensure better structural integrity
Text CNC Miling: Minimum width of 0.5 mm and depth of 0.1 mm.
Yinchen can create standard text via CNC engraving or laser engraving as per customer requirements
Holes Minimum diameter of 1 mm. Hole depth should not exceed 4 times the diameter for best results
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Why Choose Us

  • At Yinchen, we have a variety of CNC milling machines to meet diverse manufacturing needs. Our inventory includes 3-axis, 4-axis, and 5-axis CNC milling machines.
    The 3-axis machines are perfect for simple operations, handling basic cutting tasks along the X, Y, and Z axes.
    Our 4-axis machines add an extra rotational axis, allowing for more complex geometries and more efficient production of parts with features that require continuous machining around a fourth axis.
    Finally, our advanced 5-axis CNC milling machines offer the highest level of precision and versatility, enabling the creation of intricate parts with complex shapes and angles.
    These machines are capable of machining in five different axes simultaneously, reducing the need for multiple setups and ensuring exceptional accuracy and quality in every component we produce.
  • Yinchen offers comprehensive CNC milling capabilities tailored to various industry needs. We can machine parts with maximum dimensions of 4000 x 1500 x 600 mm and minimum dimensions of 5 x 5 x 5 mm, accommodating a wide range of project sizes. Our milling machines can work with various materials, including metals, plastics, and composites. We achieve tight tolerances, typically ±0.01 mm for 5-axis milling, ensuring precision and consistency. Our lead times are competitive, ranging from 3-7 days for simpler 3-axis tasks to 7-14 days for more complex 5-axis projects. We also provide additional services such as surface finishing, heat treatment, and quality inspection to ensure that every part meets the highest standards of quality and performance.
  • CNC milling and CNC turning are both subtractive manufacturing processes, but they differ in how the material is removed.

    In CNC milling, the workpiece is stationary, and the cutting tool moves across multiple axes to remove material and create the desired shape. This process is ideal for complex parts with various features such as slots, holes, and contours.

    On the other hand, CNC turning involves rotating the workpiece while a stationary cutting tool removes material. This method is best suited for producing cylindrical parts, such as shafts, rings, and bolts. While milling can handle more complex geometries, turning is typically faster and more efficient for producing round parts.
  • CNC milling and CNC routing both involve cutting materials using computer-controlled machines, but they serve different purposes.

    CNC milling machines are designed for precision work with metals, requiring high rigidity and the ability to handle significant cutting forces. They are used for producing intricate and complex parts with tight tolerances.

    CNC routers, however, are typically used for softer materials like wood, plastics, and composites. They operate at higher speeds and are ideal for cutting larger sheets into parts with less emphasis on precision. Routers often feature a gantry-style design, allowing for quick and efficient handling of large workpieces, while milling machines focus on detailed, accurate machining.
  • When a 3D model or drawing does not specify a particular fillet size, standard practice is to add fillets with a radius that balances strength and machinability.

    Typically, fillets with a radius of 1/3 to 1/5 of the cavity depth are added. For general purposes, a fillet radius of around 1 mm to 3 mm is commonly used. This size helps to reduce stress concentrations and improve the overall durability of the part.

    However, the exact size can vary based on the material being used and the specific requirements of the part. Larger fillets are often preferred for softer materials, while smaller fillets may be used for harder materials to ensure structural integrity without compromising precision.
  • Vertical CNC milling machines, with their vertically oriented spindles, are ideal for precision work on smaller components, offering excellent visibility and versatility for tasks like drilling and boring. Horizontal CNC milling machines, featuring horizontally oriented spindles, excel in handling larger, heavier workpieces and provide enhanced stability and efficient chip removal. For projects requiring extensive material removal and high durability, horizontal milling is preferred. In contrast, vertical milling is best for intricate, detailed work. Choosing between these types depends on your specific CNC milling services needs, whether for precision or bulk machining.
  • In CNC milling, tool offset refers to the adjustment made to account for the tool’s dimensions—specifically its length and diameter—during the machining process. These offsets ensure that the cutting tool operates with precision relative to the workpiece. By accurately setting tool offsets, a machinist can determine the correct starting point for machining, ensuring that the part is cut to the exact specifications required. Proper tool offsets are crucial for achieving accurate and consistent results in CNC milling operations.
  • 5-axis CNC machining refers to a process where a CNC milling machine can move a cutting tool along five different axes, allowing for highly complex and precise machining. In this setup, the X, Y, and Z axes correspond to the basic linear movements found in a 3-axis machine. Additionally, the table can rotate around the A-axis, similar to a 4-axis machine. The key difference with a 5-axis machine is its ability to pivot the table or tool head around a fifth axis, the C-axis, enabling the tool to approach the workpiece from virtually any direction. This capability makes 5-axis CNC machines ideal for creating intricate parts with complex geometries, as it allows for machining multiple surfaces in a single setup.
  • CNC mills can work with a diverse range of materials. Metals frequently used include aluminum, brass, and steel, each offering different properties for various applications. Additionally, CNC milling is effective on various plastics such as ABS, acrylic, polycarbonate, and polypropylene, which are valued for their versatility and ease of machining. This variety of materials allows CNC mills to be employed in numerous industries, from aerospace to consumer products, making them a highly adaptable tool for manufacturing.
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