CNC Machining Service from China
Precision CNC milling, turning, and 5-axis machining for metal and plastic parts — from rapid prototyping to low-volume production. Tolerances to ±0.002", lead times from 3 business days.
Three Core CNC Processes
CNC Turning
Symmetrical parts with precise external contours — axles, bushings, shafts, and bearing housings. Standard tolerance ±0.005", surface finish Ra 0.8 μm.
CNC Milling
Complex geometries, pockets, slots, and contoured surfaces across both metals and engineering plastics. Max part size 1500 × 800 × 600 mm.
5-Axis Milling
Multi-angle machining in a single setup — reduces fixtures, achieves ±0.001" tolerance for complex aerospace and medical components.
Machining Tolerances & Limits
KUSLA Prototype follows ISO 2768 standards — medium grade for plastic parts, fine grade for metals. For tighter tolerances, provide a detailed 2D drawing and our engineering team will work with you on critical dimensions.
| Parameter | CNC Milling | CNC Turning | 5-Axis Milling |
|---|---|---|---|
| Standard Tolerance | ±0.005" (±0.125mm) | ±0.005" (±0.125mm) | ±0.003" (±0.075mm) |
| Achievable Tolerance | ±0.002" (±0.05mm) | ±0.002" (±0.05mm) | ±0.001" (±0.025mm) |
| Max Part Size | 1500 × 800 × 600 mm | Ø500 × 1000 mm | 800 × 500 × 500 mm |
| Min Feature Size | 0.5 mm | 0.5 mm | 0.3 mm |
| Surface Finish (Ra) | 1.6 μm standard | 0.8 μm standard | 0.8 μm standard |
| Min Fillet Radius | R0.1 mm | R0.05 mm | R0.05 mm |
| Lead Time | From 3 days | From 3 days | From 5 days |
CNC Plastic Machining
30+ engineering-grade plastics available
CNC Metal Machining
High-power spindles for virtually any metal
What Is CNC Machining?
CNC (Computer Numerical Control) machining is a subtractive manufacturing process where computer-controlled cutting tools remove material from a solid block to create precision parts. Machines range from 3-axis mills to 5-axis simultaneous machining centers, lathes, and routers.
The cutting tool, the workpiece, or both move simultaneously under programmed instructions — enabling tight tolerances and repeatable accuracy across production runs of any size.
Surface Finishing Options
Choose from standard machined finishes to premium surface treatments for appearance and durability.
Standard Ra 1.6–3.2 μm surface directly from the machine.
Uniform matte finish using fine glass beads.
Corrosion resistance + color options for aluminum parts.
Durable, scratch-resistant protective layer in any RAL color.
Zinc, nickel, or chrome for wear and corrosion protection.
Directional linear texture for a refined industrial look.
Optical-grade reflective surface down to Ra 0.05 μm.
Electrochemical smoothing for medical and food-grade applications.
Gallery of CNC Machined Parts
Frequently Asked Questions
Learn More About CNC Machining
Ready to Start Your CNC Project?
Upload your CAD file and get a detailed quote within 24 hours. Our engineering team reviews every submission for DFM optimization.
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