Metal CNC Machining Services
At RJC, we specialize in CNC machining for a wide range of metals — from lightweight aluminum to aerospace-grade titanium. Whether you need a prototype or production run, our metal CNC machining services deliver high-quality, tight-tolerance components with short lead times and consistent quality.
We support global engineers, product developers, and buyers across automotive, aerospace, electronics, energy, and medical sectors.
Metals We Machine
We work with a wide range of metal materials, covering most industrial and performance needs:
| Material | Common Grades | Features | Applications |
|---|---|---|---|
| Aluminum | 6061, 7075, 5052, MIC-6 | Lightweight, corrosion-resistant, machinable | Enclosures, brackets, automotive parts |
| Stainless Steel | 303, 304, 316, 17-4PH | Strong, corrosion-resistant, durable | Medical, marine, industrial components |
| Brass | C360, C260 | Excellent machinability, decorative | Valves, fittings, electrical terminals |
| Copper | C110, C145 | High conductivity, ductile | Electrical contacts, heat exchangers |
| Titanium | Grade 2, Grade 5 | High strength-to-weight, corrosion-resistant | Aerospace, medical, high-performance parts |
| Mild/Carbon Steel | 1018, 1045, A36 | Cost-effective, strong | Structural parts, tools, machinery |
| Tool Steel | D2, A2, O1 | Hard, wear-resistant | Dies, punches, cutting tools |
Need help choosing a material? Our engineers can assist based on mechanical, thermal, and cost requirements.
Our CNC Machining Capabilities for Metal Parts
We offer advanced CNC capabilities tailored for metal materials:
- Processes: CNC milling, CNC turning, drilling, threading, boring
- Tolerances: ±0.005–0.01mm depending on part geometry
- Max Part Size: Up to 1200 × 800 × 500 mm
- Volume: 1 to 10,000+ parts
- Lead Time: 3–12 business days
- File Support: STEP, IGES, STL, DWG, Parasolid
From single prototypes to production quantities, we deliver consistently precise metal components.
Choosing the Right Metal for Your Application
Selecting the right metal is crucial to achieving the desired performance. Below are some typical recommendations:
| Application | Recommended Metals |
| Lightweight structural parts | Aluminum (6061, 7075) |
| Corrosion resistance (marine/medical) | Stainless Steel (316), Titanium |
| High conductivity (electrical/thermal) | Copper, Brass |
| Wear resistance or tooling | Tool Steel, Hardened Stainless |
| Aesthetic appearance | Brass, Polished Stainless, Anodized Aluminum |
Still unsure? Talk to our engineers for material selection advice based on your specific design and working environment.
Surface Finishing for Metal Parts
We offer a variety of surface finishes suitable for different metals:
- Anodizing (Aluminum): Type II and Type III finishes
- Polishing / Brushing: Stainless steel, brass, copper
- Plating: Nickel, chrome, zinc, tin (available on request)
- Bead blasting: Matte surface for all metals
- Powder coating & painting: Color and corrosion protection
- Passivation: Improves corrosion resistance on stainless and titanium
Visit our surface finishing page for more options.
Why Choose RJC for Metal CNC Machining?
- 20+ years of experience in multi-metal CNC machining
- ISO 9001 certified factory with traceable QC process
- Experienced engineering team for DFM and material advice
- Fast quoting — within 12 hours
- NDA protection and secure file handling
- Global shipping with customs support
Whether your project requires tight tolerances, complex geometry, or certified materials, we’re ready to deliver.
