Direct answer: This CNC machining service covers the prototype, low-volume, and batch-production work described below, using milling, turning, and hybrid machining where the part geometry and requirements fit those routes. Material, dimensions, tolerances, surface finish, quantity, and inspection requirements determine the suitable process.

When to choose CNC, stamping, or sheet metal

Choose CNC where part geometry, machined features, material removal, or tolerance requirements call for it. Stamping or sheet-metal processing may be more suitable where the drawing and quantity favor forming, cutting, bending, or dedicated tooling. Confirm the route from the drawing rather than assuming one process fits every part.

Materials, tolerances, and inspection

The existing material list includes carbon steel, alloy steel, stainless steel, aluminum alloy, bronze/copper, titanium alloy, and engineering plastics. Use the tolerances and surface-finish figures already stated in the process table as project-specific references, then confirm inspection requirements against the drawing.

Inspection approach

Where applicable, inspection can be planned around the critical dimensions, surface finish, material, and acceptance criteria. The page lists calipers, micrometers, height gauges, projectors, and roughness meters; agree the required records and sampling basis before production.

FAQ

When is CNC machining a good fit? When the geometry, machined features, material, quantity, and tolerance or finish requirements suit material-removal processes.

What should I send for review? Send the drawing or 3D model, material, quantity, critical tolerances, surface finish, and inspection requirements.

For related routes, see the sheet metal fabrication service, metal stamping service, and contact page.

Precision Machining for Complex Parts

We provide CNC machining services for prototypes, low-volume production, and batch manufacturing. CNC Machining Core Process Process Equipment Capacity Precision CNC Milling Up to 800 × 500 × 500 mm ±0.01mm CNC Turning Depending on part geometry ±0.005mm CNC Turning-Milling Hybrid Reduced repositioning and improved machining efficiency Based on part requirements Different machining processes are selected according to part complexity, dimensional requirements, and production efficiency. CNC Machining Materials Material category  Common grades Carbon steel 1018, 1045, A36  Alloy steel 4140, 4340 Stainless steel 303, 304, 316  Aluminum alloy 6061, 7075, 5052 Bronze/Copper C360, C110 Titanium alloy Grade 2, Grade 5 Engineering plastics POM, Nylon, PTFE Accuracy And Inspection Dimension Tolerance: ±0.01mm (for milling), ±0.005mm (for turning) Surface Roughness: Ra 1.6 – 3.2 μm (can reach Ra 0.8 μm) Inspection Equipment: Calipers, Micrometers, Height Gauges, Projectors, Roughness Meters Production Mode Prototype development: Rapid machining without tooling Batch Production: Stable production under ISO 9001 procedures Our Advantages: Stable tolerance and surface quality control Over 70,000+ metal parts processing experience Flexible support from prototypes to production Coordinated machining and secondary processing Engineering-based manufacturing recommendations From precision prototypes to long-term production projects, Xinjiuxinji provides practical CNC machining solutions for customers requiring reliable manufacturing support.

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Related pages: Equipment List · Custom Parts Gallery