CNC Machining Materials for Prototypes and Production
CNC Metal Materials
We provide precision machining services for a variety of metal materials commonly used in industrial equipment, medical device enclosures, beauty device housings, consumer products, and custom mechanical components.
Aluminum Alloys
- Aluminum 5052
- Aluminum 6061
- Aluminum 6063
- Aluminum 7075
Stainless Steel
- Stainless Steel 303
- Stainless Steel 304
- Stainless Steel 316
- Stainless Steel 17-4 PH
Steel Materials
- Carbon Steel
- Alloy Steel
- Tool Steel
Copper Alloys
- Brass
- Copper
- Bronze
Specialty Metals
- Titanium
- Magnesium
- Zinc Alloy
Plastic Materials
- ABS
- ASA
- PMMA
- PC
- PVC
- PS
- PP
- PETG
- POM（Delrin）
- Nylon（PA）
- PEEK
- PTFE（Teflon）
Metal Materials Comparison
| Material | Strength | Weight | Corrosion Resistance | Cost |
|---|---|---|---|---|
| Aluminum 6061 | High | Light | Good | Low |
| Stainless Steel 304 | Very High | Heavy | Excellent | Medium |
| Brass | Medium | Medium | Good | Medium |
| Copper | Medium | Heavy | Good | High |
| Titanium | Very High | Light | Excellent | High |
Note: Aluminum 6061 can reach excellent corrosion resistance after anodizing and sealing surface finishing.
Plastic Materials Comparison
| Material | Impact Resistance | Chemical Resistance | Transparency | Cost |
|---|---|---|---|---|
| ABS | Good | Medium | No | Low |
| PC | Excellent | Medium | Yes | Medium |
| PMMA | Medium | Medium | Excellent | Medium |
| POM | High | Good | No | Medium |
| PEEK | Excellent | Excellent | No | High |
Plastic Materials Comparison
Our CNC Machining Capabilities
- Part Size: 10mm – 2000mm
- Tolerance: ±0.01mm
- Prototype Lead Time: 3–7 Days
- Production Quantity: 1–10000+ Parts
- Materials Available: 20+ Metals & Plastics
- Surface Finishes: 30+ Options
What is the best material for CNC machining?
Aluminum 6061 is one of the most commonly used CNC machining materials due to its excellent balance of strength, machinability, and cost.
What plastic is easiest to machine?
ABS and POM are among the easiest engineering plastics to machine.
Can you machine PEEK?
Yes. We provide precision CNC machining services for PEEK components used in medical and industrial applications.
Which material is best for medical device enclosures?
ABS, PC, PMMA, and PEEK are commonly selected for medical device enclosure manufacturing.
What is the strongest plastic for CNC machining?
PEEK is widely recognized as the strongest high-performance engineering plastic for CNC machining, with outstanding tensile strength, high temperature resistance and chemical stability, making it ideal for implantable medical parts and high-load industrial components. For general structural applications, glass-filled nylon and medical-grade PC also deliver excellent impact resistance and structural rigidity. Our engineering team can recommend the optimal plastic material based on your actual load and working environment.
Can CNC machining produce transparent plastic parts?
Yes. We precision CNC machine multiple transparent plastic materials for optical components, equipment view windows and clear device covers. Common options include PMMA (acrylic) for maximum optical clarity, medical-grade PC for high-impact transparent protective covers, and PETG for balanced toughness and surface finish. These transparent materials are widely applied in our custom Beauty Device Housings for skin analysis equipment and laser aesthetic devices.
Project Case Studies
See our completed CNC machining and medical device enclosure projects.
Each case highlights our precision, quality control, and ability to meet strict industry standards.
Introduction A Medical Device Enclosure has to do more than protect the equipment inside. For medical beauty and physiotherapy equipment,
Custom medical device enclosures protect sensitive internal components, support product operation, and shape how users interact with medical equipment. Unlike
At Zhongrongda, our engineering team has spent over 15 years manufacturing precision CNC-machined parts and enclosures for medical, robotics, and
Introduction The demand for intelligent medical service equipment is growing rapidly as hospitals, community healthcare centers, and physical examination facilities
Introduction: Why Medical Equipment Requires Professional Enclosure Manufacturing Medical devices are becoming increasingly sophisticated, requiring not only advanced electronics and
Introduction A professional Medical Device Enclosure requires much more than a protective external shell. For healthcare environments, equipment housings must