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CNC Machining Services
Precision Machining for Prototypes and Production Parts
High-precision CNC machining services for functional prototypes, low-volume production, and end-use parts. We help engineers turn designs into reliable, manufacturable components with confidence.
Key Capabilities
- Tight tolerances down to ±0.01 mm
- Wide material selection for engineering applications
- DFM-driven manufacturing decisions
Request a Quote 
5-Axis
Advanced Multi-Axis Capability
±0.01mm
Achievable Tolerance
40M+
Parts Delivered
30+
Engineering Materials Machined
Core CNC Machining Capabilities
Our CNC machining services are built around core processes that cover most functional and production-grade requirements, from simple precision parts to complex multi-axis components.
CNC Milling
High-precision CNC milling for complex metal and plastic parts, supporting tight tolerances, intricate geometries, and consistent quality from rapid prototypes to production runs.
CNC Turning
Precision CNC turning for cylindrical and rotational components, delivering excellent concentricity, surface finish control, and dimensional stability for functional and mechanical assemblies.
5-Axis CNC Machining
Advanced 5-axis CNC machining for complex parts with compound angles, deep cavities, and multi-face features—reducing setups, improving accuracy, and shortening lead times.
Swiss Machining
Swiss-type CNC machining for small, high-precision parts with long, slender geometries—ideal for tight tolerances, high repeatability, and complex micro features.
Parts We Machine Every Day
Our CNC capabilities go beyond these examples. Share your design and get engineering feedback before machining begins.
Request a Quote Structural & Load-Bearing Components
Machined metal components designed for structural strength, precise alignment, and reliable performance in load-bearing and mechanically demanding applications.
Housings, Enclosures & Mounting Parts
Precision-machined housings and mounting parts requiring tight tolerances, clean finishes, and consistent dimensional accuracy across batches.
Complex Multi-Axis CNC Parts
Complex CNC parts featuring undercuts, compound angles, or multi-face machining, produced efficiently using advanced multi-axis processes.
Materials Engineered for CNC Machining
Not Sure Which Material Fits Your Part Best?
Our engineers evaluate part geometry, tolerances, and real machining behavior to recommend materials that balance performance, cost, and manufacturability.
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Evaluate material machinability before production
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Consider tolerance requirements and surface finish expectations
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Balance mechanical performance with cost efficiency
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Provide feedback during DFM review to reduce material-related risks
Tolerance Control
We define tolerances based on functional requirements, assembly needs, and real-world use — not guesswork. When tighter tolerances are required, we have the machining capability and inspection control to deliver them.
Function Driven
Tolerances are defined by load, motion, and performance requirements — not uniformly applied.
Assembly Fit
Mating surfaces and critical interfaces receive higher precision control.
Material Behavior
Tolerance planning accounts for material properties and part geometry.
Cost-Efficient Precision
We avoid over-specification that increases cost without functional benefit.
| Category | Standard | Precision Option | Design Guidance |
| General CNC Features | ±0.05 mm | ±0.02 mm | Use standard tolerance for non-functional or cosmetic areas to reduce cost |
| Assembly & Fit Features | ±0.02 mm | Up to ±0.01 mm | Apply tighter tolerance only where parts mate or align |
| Functional / Moving Interfaces | ±0.02 mm | Up to ±0.01 mm | Defined by motion type, load, wear, and lifetime requirements |
| Metal Parts (Aluminum, Steel) | ±0.02–0.05 mm | ±0.01 mm (feature-based) | Metals offer stable accuracy; precision applied selectively |
| Engineering Plastics | ±0.05–0.10 mm | ~±0.03 mm | Consider deformation, wall thickness, and thermal behavior |
| Thin Walls & Long Spans | Case-dependent | DFM-defined | Geometry stability matters more than nominal tolerance |
*Actual tolerances are defined during DFM review based on material, geometry, and functional requirements.
- Metals typically allow tighter and more stable tolerances than plastics
- Softer materials may deform under cutting forces, affecting final accuracy
- Engineering plastics and composites require tolerance planning based on geometry and load
Surface Finishing Options for CNC Parts
Surface finishes are selected based on functional needs, appearance requirements, and part usage — not just aesthetics.
Quality Control & Inspection
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International Quality System
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Strictly implement ISO9001, IATF16949, and ISO13485 quality management systems.
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High-Precision Inspection Equipment
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Key processes are equipped with CMM, profilometers, and other inspection equipment, ensuring 100% traceable products.
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Compliance with International Environmental Standards
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Products are manufactured according to national environmental standards, meeting RoHS, grid test, wear resistance, alcohol resistance, hardness, and salt spray test requirements.
When CNC Machining Is the Right Manufacturing Choice
CNC machining is best applied when dimensional accuracy, material performance, and real-world
validation
matter more than tooling speed or unit cost.
At Yijiang, CNC machining is most often used to validate part performance, assembly fit, and
manufacturability before customers commit to molds or large-scale production.
CNC Machining Is a Strong Fit When You Need:
- Functional prototypes that must withstand mechanical stress, heat, or assembly testing
- Tight tolerances where small deviations affect performance or fit
- Production-grade materials such as aluminum, stainless steel, or engineering plastics
- Low to medium volumes where flexibility matters more than unit cost
Why Engineers Choose CNC Before Tooling:
01
Validate real material behavior before mold investment
02
Identify tolerance-sensitive features early
03
Reduce redesign risk in injection molding or die casting
04
Shorten overall product development cycles
Design Considerations for CNC Machining
Design Recommendations
- Avoid deep cavities with small internal radii
- Use standard hole sizes whenever possible
- Maintain consistent wall thickness
- Add chamfers instead of sharp internal corners
Limitations
- Not cost-effective for very large production volumes
- Complex internal structures may require secondary operations
Ready to Validate Your CNC Design?
Share your CAD files with our engineers and receive manufacturability feedback, tolerance suggestions, and a fast quotation — before any production commitment
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Design-for-manufacturing review by CNC engineers
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Tolerance and material optimization suggestions
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Clear lead time and cost breakdown
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No obligation before approval
Why Yijiang Technology for CNC Machining
Advanced Equipment
We operate industry-leading CNC machining centers, EDM machines, and inspection equipment, ensuring high-precision and complex parts processing.
Broad Material Capability
Capable of machining aluminum, steel, stainless steel, copper alloys, and engineering plastics for diverse industries.
High Precision & Quality
Strictly follow ISO9001, IATF16949, ISO13485 quality systems, with 100% traceability on key processes.
Full-Cycle Service
Deliver turnkey solutions from process design and mold development to CNC machining and mass production.
Inside Our CNC Manufacturing Facility
Our in-house CNC machining facility is equipped to support prototyping, complex parts, and low-to-medium volume production — all under one controlled workflow.
From material preparation to final inspection, every step is managed internally to ensure quality, traceability, and delivery reliability.
CNC Machining in Action
600 Vertical Machining
650 Vertical Machining
T-700SE Drill & Milling
856 Vertical Machining
Resources and FAQs
- Blog
Custom Manufacturing: Processes, Benefits, and Applications
and Applications We operate under strict quality control systems and comply with internationally recognized manufacturing standards, ensuring consistent product quality for automotive, electronics, and industrial applications. We operate under strict ...
2026-04-24
- Blog
- Design & Engineering
Design Considerations for Precision Injection-Molded Components
Designing precision injection-molded components requires careful consideration of part geometry, tolerances, manufacturability, and end-use requirements. Proper design can reduce production issues, minimize material waste, and ensure consistent quality in large-scale ...
2026-05-04
- Industry
Material Selection for Precision Manufacturing
Selecting the right material is critical for precision manufacturing. Material choice affects mechanical strength, thermal stability, chemical resistance, surface finish, and overall part performance. This guide provides engineers and designers ...
2026-05-13
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Can you support fully customized CNC parts?
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Yes, we can fully customize CNC parts based on your 2D/3D drawings or samples.
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What materials can you process?
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We can process aluminum alloys, steel, stainless steel, copper alloys, and engineering plastics.
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What tolerance can you achieve?
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We can achieve tolerances of ±0.002mm, with 100% quality inspection and reports.
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Do you provide prototypes or small batch production?
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Yes, we support single prototypes, pilot runs, and small-batch production for R&D and testing.
