Precision CNC Machining Services
On demand precision CNC machining services for prototype and custom parts, with tolerances as low as+/-0.01 millimeters (+/-0.00039 inches), and a delivery time of 3 working days.
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Certifications
ISO 9001:2015 | ISO 13485：2016 | IATF16949
Rapid CNC Machining With a Delivery Time of 3 Days
Looking for fast turnover plastic and metal parts suppliers? With our plenty of CNC machine tools, our precision CNC machining can quickly turnover parts to accelerate product development while maintaining your project schedule. We can supply CNC parts in as little as 3 days. No need to wait for long cycles. Start your precision CNC machining project immediately.
Our Precision CNC Machining Capabilities
BOYI is an excellent choice for manufacturing customized metal and plastic parts. From simple designs to complex designs with strict tolerances, we quickly produce prototypes and parts within a few days through our 3-axis, 4-axis, and 5-axis machining.
Easily create metal and plastic parts with complex geometries using our extensive range of 3-axis, 4-axis, and 5-axis milling machines.
Using our CNC turning technology to produce complex external geometries and internal holes, including machining various threads.
CNC Grinding Services
For ultra-flat or high-precision parts with strict outer and inner diameter tolerances, our CNC grinding will perfectly meet your project requirements.
EDM Services
EDM is ideal for handling complex shapes and fine details. It effectively removes unwanted material, perfect for sharp angles and undercuts.
Wire Cutting Services
Wire cutting is suitable for various complex shapes, meeting strict application requirements. It achieves high precision in edge and contour processing.
We offer high-quality CNC routing services for soft materials, such as wood, to meet various prototype and part design needs.
Precision CNC Machining Tolerances
Whether it’s metal or plastic parts. When cooperating with BOYI, we guarantee that all parts will be manufactured according to your specifications.
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Maximum Part Size |
Milling: 4000 mm×1500 mm×600 mm |
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Minimum Part Size |
1 mm×1 mm |
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Minimum Feature Size |
Φ 0.50 mm |
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Linear Dimension |
±0.025 mm |
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Tolerances |
±0.01 mm |
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Shaft Diameters |
±0.025 mm |
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Min Wall Thickness |
0.5mm |
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Min End Mill Size |
0.5mm |
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Min Drill Size |
1mm |
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Hole Diameters (Not Reamed) |
±0.02 mm |
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Threads and Tapped Holes |
Diameter: Φ 1.5-5 mm, depth: 3×diameter |
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BOYI can produce threads of any specification and size required by our customers. |
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Laser Etching |
Minimum width of 0.5 mm, depth of 0.1 mm |
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Use laser marking to create standard text for CNC parts |
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Surface Finish |
Standard finish is as-machined: 125 Ra or better. Additional finishing options can be specified when getting a quote. |
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Standard Lead Time |
3 business days |
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View our screw tap drill size chart and simplify your machining process. Click here to access the tap drill size chart.
Precision CNC Machining Materials
BOYI provides industrial standard metal and plastic material processing quotations.
- Aluminium
- Stainless Steel
- Tool Steel
- Alloy Steel
- Low Carbon Steel
- Alloy
- Brass
- Copper
- Bronze
- Nickel
- Inconel
- Titanium
- Nylon
- ABS
- PET
- PEI
- PEEK
- PMMA (Acrylic)
- POM
- PP (Polypropylene)
- PC (Polycarbonate)
- PE (Polyethylene)
- HDPE
- PS (Polystyrene)
- PVC
- LDPE
- PPSU
- CPVC
- PSU
- PTFE
- Carbon Fiber
- Wood
We provide a quotation of 100+materials so that you can better compare and choose suitable materials.
CNC Machined Part Surface Finishes
During CNC machining, visible tool marks are usually left on the surface of parts to create the desired shape. To avoid the impact of such marks on the final product, we offer multiple surface finishing options to enhance the functionality and aesthetics of the parts.
Specific to aluminum, this finish can range from smooth to matte or gloss, with customizable colors. A thin layer (0.002mm to 0.04mm) is removed.
The polished finish offers a high gloss, smooth surface with Ra 0.8μm (Ra 32μin) roughness, ideal for mirror-like applications.
Bead Blasting
Metals or plastics parts surface is left with a smooth, matte appearance, with no thickness removal specified.
Black Oxide
Black oxide is a corrosion-resistant treatment for metals, providing a matte black finish, mild rust protection, and improved wear resistance.
Powder Coating
Applicable to metals, offering matte, gloss, or textured finishes with customizable colors. Thickness removed ranges from 0.05mm to 0.15mm.
As Machined
This finish retains visible tool marks and is suitable for both metals and plastics. There is no specific thickness removed in this finish.
Brushing
Brushing produces a satin texture on parts, offering a smooth, uniform finish while concealing minor flaws.
Electroless Nickel Plating
Electroless Nickel Plating provides a uniform, corrosion-resistant finish on metals, with excellent hardness and wear resistance.
Chromate Conversion Coating
This finish can appear smooth or matte, often with a clear or slight yellow tint. A very thin layer (0.25–1 micrometer) is removed.
E-Coating
This finish, suitable for metals, can be matte or gloss, with black as the most common color.
Painting
Available for metals and plastics, this finish can be matte, gloss, or textured, with color matching possible.
Heat Treatment
Heat treatment enhances metal properties such as hardness, strength, and toughness through controlled heating and cooling processes.
If you have more complex surface finishing requirements, please contact the BOYI team.
Gallery of Precision CNC Machined Parts
Following shows the custom CNC machining prototypes and end-use parts we produce for our customers.
CNC Machining in Key Industries
We’ve had the privilege of manufacturing millions of parts for countless applications, but we truly excel in these key industries with our CNC capabilities.
Aerospace Industry
Automotive Industry
Medical Industry
Robotics
Tour Our CNC Machining Manufacturing Center
Watch our video for a quick tour of our 6,000 square meter manufacturing facility in Dongguan,Guangdong. China, to leam more about BOYI CNC machining capabilities and how to quickly manufacture parts in 3 days.
BOYI 3-axis, 4-axis, and 5-axis CNC machine tools – in just 72 hours, you can obtain precision CNC parts, which is our focus on providing customers with fast and efficient services.
5 Axis CNC Machining Center
We have 5 axis CNC machining to meet high complex customized parts requirement .
When You Need Quality, BOYI Stands Out
At BOYI, our facility is equipped with advanced precision inspection equipment to ensure every part meets the highest quality standards. We conduct rigorous inspections at every stage of production to guarantee all components are precisely manufactured to your specifications. Watch the video below to see how we achieve exceptional quality control and proactively mitigate potential risks.
How BOYI Compares to Online CNC Quotation Platforms
Utilizing our experienced production engineers and technical experts to handle complex projects and special requirements:
1. Each inquiry is reviewed by our engineers to ensure the accuracy of calculating material and processing costs – AI systems may not accurately handle special design features (such as sharp corners and radii), resulting in high or unreasonable quotations.
2. We provide on-demand manufacturing solutions, producing parts based on customer specific needs and design requirements – for situations involving complex CNC machining, online platforms are suitable for projects that require fast and standardized services.
Our precision CNC machining equipment is designed for rapid prototyping and low volume manufacturing of end use components. Whether it is a single or thousands of CNC parts, we will provide accurate prices and DFM reports within 2 hours.
About CNC Machining FAQs
CNC machining is a manufacturing technique that utilizes computer numerical control to precisely cut and shape materials based on pre-programmed instructions. We can produce various complex parts and components based on designs provided by customers.
Generally, we can accept various file formats, including.STP,.STEP,.X-T, among others.
CNC machining is suitable for various materials, including metals (such as aluminum, steel, copper), plastics (such as ABS, polypropylene), and composite materials. We can choose the most suitable materials for processing according to customer needs.
At Boyi, we have flexible production capabilities that can meet the needs of one-time prototyping and large-scale production operations. Whether you need a single part or thousands of parts, we can provide you with solutions.
Boyi has more than 50 CNC machine tools and over 30 experienced technical experts, so we can produce over 8000 different CNC parts per month. In addition, thanks to our validated manufacturing partners in our manufacturing network, we can provide unlimited additional CNC machining parts.
Essential CNC Machining Resources for Engineers
Latest news, trends and manufacturing design tips for precision cnc machining.
Our Other Manufacturing Capabilities
In addition to our expertise in CNC machining, we offer a wide range of manufacturing services to support diverse production requirements.
Manufacturing high-quality plastic components suitable for high-volume production needs, with a variety of materials and finishing options.
From cutting and bending to welding and assembly, we provide customized solutions for enclosures, brackets, and structural components.
Producing strong, lightweight profiles with excellent surface finishes, offering a wide range of shapes, sizes, and customized products.
