CNC Machining Capabilities & Solutions
Sanpin offers a fairly wide range of CNC machining processes. The services we provide to customers generally fall into three categories.
Our CNC services primarily focus on CNC milling service and EDM machining. We also support these processes with CNC turning, CNC grinding, CNC boring, and other techniques. We can meet a wide range of complex customer requirements.
We offer options such as standard CNC machining and precision CNC machining. You do not necessarily need to pursue five-axis CNC machining. Instead, you should make the most suitable choice based on your specific processing needs and budget.
Our project managers will provide you with the most reasonable recommendation for each individual project.
Industries Served & Case Studies
As a leading CNC machining company, we deliver proven manufacturing solutions helping automotive, medical device, aerospace, and electronics manufacturers overcome production challenges. Our CNC machining services enable 30% cost reduction and 50% faster time-to-market through technical innovation.
Our CNC Machining Cases
Cooling Manifold Manufacturing
CNC-machined aluminum cooling manifold for efficient thermal management.
Custom Shim Manufacturing
CNC-milled titanium shim for high-precision gap filling.
Watch a Video of Our CNC Machining Services
Our CNC Machining Material Library
Based on a database of 10,000+ manufacturing cases, we have developed a three-dimensional decision model for material selection (mechanical performance, machining feasibility, lifecycle cost). We provide technical-grade material selection support for all industries.
Popular Materials For CNC Machining
Steel
Aluminum
Titanium
Bronze
| Material | Applications | Cost Level | Material | Applications | Cost Level |
|---|---|---|---|---|---|
| Aluminum 6061 | Aerospace brackets | $$ | Brass C360 | Electrical connectors | $$ |
| Aluminum 7075 | High-stress fixtures | $$$ | Copper 110 | Heat sinks | $$$ |
| Aluminum 5052 | Marine hardware | $$ | Inconel 718 | Turbine disks | $$$$$ |
| Stainless Steel 304 | Medical instruments | $$$$ | Nickel 200 | Electrolysis equipment | $$$$$ |
| Mild Steel 1018 | Structural parts | $ | Magnesium AZ31B | Camera bodies | $$$$ |
| Tool Steel D2 | Cutting dies | $$$$ | Carbon Steel 1045 | Gears, shafts | $$ |
| Tool Steel D1 | Tooling fixtures | $$$$ | ABS | Automotive prototypes | $ |
| Titanium Grade 2 | Medical implants | $$$$$ | Nylon (PA6/PA66) | Bearings, bushings | $$ |
| Titanium Grade 5 | Racing components | $$$$$ | POM (Delrin) | Precision gears | $$ |
Premium Surface Finishes For Rapid Prototyping
Every component receives mandatory cleaning and deburring services to eliminate contaminants (oil, coolant residues) and achieve high-grade surface finishes (Ra≤3.2μm).
Sandblasting
The surface of the CNC workpiece changes from raw metal color or tool marks to a uniform, non-reflective matte gray. It feels smoother to the touch.
Anodizing
A dense oxide film forms on the surface of the metal CNC part. The color can be customized. Hardness and corrosion resistance improve significantly.
Powder Coating
The CNC part receives a thick, textured or glossy plastic-like layer. It feels warm to the touch and the colors appear vivid.
Electroplating
The surface of the CNC machined part becomes a metallic coating, such as bright nickel or chrome. It shows a highly reflective metallic luster and resists corrosion better.
High-Gloss Polishing
The final part surface reflects light like a mirror. All machining marks disappear completely.
EMI Shielding Coating
The workpiece surface receives a thin, electrically conductive layer. It provides electromagnetic shielding function. Its appearance looks similar to spray painting.
Our Precision Tolerances & Quality Control
Once we commit to a CNC tolerance, we will do whatever it takes to achieve it. We will arrange our quality inspection equipment, team, workflow, and task assignments in the most reasonable way possible. We do this to deliver on our high-quality promise.
CNC Machining Tolerances
| Material Category | Standard Tolerance | High-Precision Option |
|---|---|---|
| Metal Prototypes | ±0.05mm(±0.002") | ±0.01mm(±0.0004") |
| Plastic Prototypes | ±0.05mm (±0.002") | ±0.01mm(±0.0004") |
| Mold Machining | ±0.01mm(±0.0004") | ±0.005mm(±0.0002") |
Tips: Click to learn more about CNC machining tolerance standards.
Verified by Advanced Metrology
CMM Dimensional Inspection
First Article Inspection
Industry Standard Compliance
Advanced CNC Machining Facility
We are fully equipped with a full range of CNC machinery covering various industrial models. Besides, our available CNC machining processes are complete and well-rounded.
Why Choose Our CNC Machining Services
We can basically handle whatever our competitors can process. We can also handle most of the work that our competitors cannot process.
Factory-Direct Scalability
One-stop from prototype to 100k+ units; no vendor switching; 98% on-time delivery; faster time-to-market.
Free DFM in one day
1-day free DFM feedback; catch 90% of design flaws; minimize rework; protect budget and timeline.
Data-Backed Precision
First-time fit guaranteed; tight tolerance ±0.005mm; full CMM inspection report; verifiable quality.
Ironclad IP Protection
NDA signed before file upload; 100% IP confidentiality; zero leaks or sharing; secure competitive edge.
4 Simple Steps To Your Custom CNC Parts
We use a convenient online ordering model to accelerate your project. Simply prepare your 3D CAD file, and our engineering team will guide you from initial design to final production.
Upload CAD & Receive DFM
Upload your 3D models (STEP, IGES) securely. Our team will review your files and do DFM checks to improve designs and reduce costs.
Detail Alignment & Quoting
We confirm materials, tolerances and surface finishes with you, then offer a reasonable quote. Production starts after your approval.
Production & Quality Control
We start to machine your CNC parts. Then we run strict quality control and CMM inspections to make sure your parts match your design exactly.
Global Shipping & Delivery
We manage secure international shipping, handle customs clearance, and provide all necessary compliance documentation.
FAQ for Custom CNC Machining Services
