CNC machining offers key advantages over 3D printing, injection molding and laser cutting:
It’s fast and cost-effective for simple parts, like base plates with holes or grooves. CNC machines achieve tight tolerances of ±0.01 mm and deliver smooth surface finishes down to Ra 0.8—ideal for painting or anodizing. They also handle a wide range of part sizes, from large components up to 6 m x 30 m to tiny features cut with 0.05 mm tools on precision 5-axis mills.

CNC machining is renowned for its ability to achieve high precision and tight tolerances, essential for complex and detailed parts. Typically, standard CNC machining can maintain tolerances within ±0.01 inches (±0.127 mm). We default to standardized tolerances without special requirements. For even more precise requirements, advanced CNC machines can achieve tolerances as tight as ±0.0005 inches (±0.0127 mm) under optimal conditions. The achievable tolerance depends on several factors including the material, part geometry, size and the specific type of CNC machine used. This capability makes CNC machining a preferred choice for industries that require highly accurate components, such as aerospace, medical and automotive sectors.

Our production engineers review every RFQ we get from customers to make sure the material and CNC machining cost are calculated properly. We’re accountable for your parts with direct good communication, not outsourcing them to unknown global suppliers, which means consistent quality from a known source. However, the online CNC machining quotation system from most of the manufacturing platforms is not yet accurate enough. And platforms often farm work out to a network of anonymous vendors—you don’t know who’s actually making your parts.

First of all, make sure the parts are designed friendly for CNC machining process and provide clear and complete CAD files. For example, avoid the features like sharp corners, deep pocket and thin walk. Secondly, select the right CNC machining partner for your projects, and build a long-term mutual relationship—repeat business often gets better pricing.

The lead time for receiving a CNC machined part from us can vary depending on several factors including the complexity of the part’s design, the type of material selected and our current production schedule. Referring to our previous CNC machining orders, over 90% of them are finished in around 7 days. Simple CNC machined parts can be done within 2 days, while it might take 15+ days to make complex or big CNC machined parts.