Overview

CNC Machining is a precision subtractive manufacturing process that uses computer-controlled machine tools to create high-tolerance metal parts from solid material stock. Yujiaxin Tech operates a versatile fleet of CNC equipment including 3-axis, 4-axis, and 5-axis machining centers with spindle speeds up to 20,000 RPM, enabling us to handle parts up to 2,000 mm in size. Our CNC services achieve exceptional tolerances of ±0.01 mm with surface finishes as fine as Ra 0.1 μm (mirror finish) when required. We work with all machinable materials including aluminum, steel, stainless steel, titanium, brass, copper, and engineering plastics. CNC machining is our fastest turnaround service, with prototype delivery in as little as 5-10 business days. It is the ideal choice for low to medium volume production from single prototypes to 10,000 pieces, offering the highest precision available among all our manufacturing processes.

Key Advantages

<ul><li>Highest precision — achieve tolerances of ±0.01 mm for critical applications</li><li>Fast turnaround — prototypes delivered in as fast as 5 business days</li><li>Wide material compatibility — machines all metals and engineering plastics</li><li>Multi-axis capability — 3-axis, 4-axis, and 5-axis for complex geometries</li><li>Excellent surface finish — Ra 0.1 μm achievable with finishing passes</li><li>No tooling cost — ideal for prototyping and low-volume production</li></ul>

Applications

<ul><li>Prototyping — rapid iteration for design validation and functional testing</li><li>Mold and die making — precision cavities, cores, and electrode manufacturing</li><li>Aerospace — structural components, engine brackets, landing gear parts</li><li>Medical — surgical instruments, implant components, device housings</li><li>Automotive — engine blocks, cylinder heads, transmission housings, custom parts</li></ul>

Technical Specifications

Parameter	Specification
Tolerance (General)	±0.01 mm - ±0.05 mm
Surface Finish (Ra)	0.4 - 1.6 μm
Max Part Size	Up to 2,000 mm
Spindle Speed	Up to 20,000 RPM
Axis Capability	3-Axis, 4-Axis, 5-Axis
Production Volume	1 - 10,000 pieces
Setup Lead Time	1 - 3 days

Frequently Asked Questions

What is the fastest turnaround time for CNC prototypes?

We offer expedited CNC machining services with prototype delivery in as fast as 5-10 business days. For simple parts with readily available materials, we can provide same-week delivery in urgent cases.

What is the difference between 3-axis, 4-axis, and 5-axis CNC?

3-axis machining moves the tool along X, Y, and Z axes, suitable for flat surfaces and simple geometries. 4-axis adds rotation around one axis, enabling helical cutting and angled features. 5-axis adds two rotational axes, allowing complex contoured surfaces in a single setup with superior surface finish.

Can CNC machining achieve mirror surface finish?

Yes, with precision tooling and finishing passes, CNC machining can achieve surface finishes as fine as Ra 0.1 μm (mirror finish). This typically requires specialized tooling, slower feed rates, and in some cases, secondary polishing operations.

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