Precision CNC Machining Vs. Standard CNC Machining Services

Sanpin's precision CNC machining goes far beyond standard machining processes. This service is applied for precision mold making, aerospace and medical prototypes.

This service is applied for precision mold making, aerospace and medical prototypes. Precision CNC machining does cost more upfront because it uses advanced multi-axis machines, special tools, and strict temperature and dust control. But it gives you huge value in return. It eliminates assembly mistakes and ensures every part is exactly the same. That means lower production risks and much lower costs over time.

Feature Precision CNC Machining Services Standard CNC Machining Services
Tolerance ±0.005mm(±0.0002") ISO-2768-M (±0.127mm / ±0.005")
Surface Finish (Ra) Ra ≤ 0.8 µm, down to Ra 0.2 µm Ra 0.8 µm – 1.6 µm
Equipment Ultra-precision machining centers (e.g., GF+, Makino) Standard production-grade 3, 4, and 5-axis CNC machines
Quality Control 100% CMM verification, strict GD&T compliance, FAI reports Standard routing inspection, calipers, and sampling
Precision CNC Machining

Applications Of Precision CNC Machining Services

Currently, about 31% of our precision machining work is making molds and dies. Another 16% goes to automotive precision parts. The rest of our capacity is used for critical jobs in optical communications, medical device, and aerospace industries.

Mold Components Making

Sanpin uses advanced multi-axis machines from GF+, Makino, and Haas to precisely control the mold cavity and core in four key areas: dimensions, shape, position, and surface finish. The accuracy in these areas directly determines the accuracy of the final injection-molded or die-cast parts.

±0.005mm Tolerance, No Flash
HRC 60+ High-Pressure Machining
Ra 0.1μm Smooth Finish
100% Interchangeable, No Fitting
Mold Components Machining
Aerospace Parts

Aerospace CNC Precision Machining

±0.005mm Tolerance
0.5mm Thin Walls
Aircraft Seat Panels
100% CMM Inspection
ISO 9001 Certified
Medical Device Parts

Medical Device CNC Precision Machining

ISO 13485 Certified
Ra 0.2μm Surface Finish
Dental Equipment Parts
@0.1mm Micro Features
100% FAI Reports

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Precision Machining For Your Parts

Sanpin's Precision Machining Features

Standard CNC machining services are suitable for parts with less strict processing requirements. Sanpin's precision CNC machining services achieve extreme performance in wall thickness, micro-machining, geometric structures and other dimensions.

Precision Metrics

±0.005mm
Dimensional Tolerances

These extreme precision values mostly apply to precision mold fabrication.

0.1µmRA
Surface Roughness

Minimize or completely eliminate costs associated with secondary polishing.

100% Verified
GD&T

We commit to providing a complete First Article Inspection (FAI) report.

Structural Extreme Capabilities

Deep Hole Machining

Deep Hole Machining

We can machine deep cavities and holes up to 10:1 aspect ratio.

Micro-Machining

Micro-Machining

We can produce Ø0.1mm micro-holes and intricate internal geometries

Powder Coating

Powder Coating

We can achieve 0.5mm ultra-thin walls.

Precision CNC Solutions Here

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4 Steps To Build Customized precision CNC cooperation

Having completed hundreds of projects, we are experienced in handling high-precision and complex parts. We can provide you with quality and reliable CNC precision parts machining in a short period of time, and the process can be completed in just four steps.

01

Drawings or Samples

You can customize drawings and samples to provide industry solutions.

02

Review and Quote

Confirm production process and quotation, place an order for your requirement.

03

Handling and Proofreading

Inspection, proofreading, your confirmation of the parts or products.

04

Production

Testing, processing, quality control, packing and shipping.