If you're designing a product that needs high-precision plastic components or soft-touch silicone buttons, you’ve got options—CNC machining or injection molding. But which one makes sense for your project?
CNC Machined Plastic Parts – Fast & Precise
Best For:
✔ Prototypes – Need a functional plastic part in days? CNC delivers.
✔ Low-volume production (1–100 pieces) – No expensive molds needed.
✔ Complex geometries – Tight tolerances (±0.05mm) with smooth finishes.
Common Uses:
- Medical device housings
- Aerospace brackets
- Custom gears & enclosures
Materials You Can CNC Machine:
- ABS (durable, impact-resistant)
- Nylon (strong, wear-resistant)
- PEEK (high-temp, chemical-resistant)
- Acrylic (clear, great for displays)
Limitations:
- Not cost-effective for mass production (machining is slower per part than molding).
- Some plastics can warp if machined too aggressively.
Silicone Buttons – Soft, Durable & Customizable
Why Silicone?
- Tactile feel – Perfect for keypads, remote controls, medical devices.
- Waterproof & heat-resistant – Won’t degrade like rubber.
- Custom shapes & textures – From domed to flat, backlit to embossed.
How They’re Made:
1.Injection Molding (Best for 500+ units)
- A steel mold is created, then liquid silicone is injected.
- Low per-part cost at high volumes.
2.CNC Machining (For Prototypes or Small Batches)
- Good for testing button design before committing to a mold.
Custom Injection Molding – The Mass-Production Powerhouse
Best For:
✔ High-volume orders (1,000+ parts)
✔ Parts with consistent quality (every piece is identical)
✔ Complex shapes with undercuts (like snap-fit enclosures)
Plastics Used in Injection Molding:
- Polypropylene (PP) – Flexible, chemical-resistant.
- Polycarbonate (PC) – Impact-resistant, transparent.
- TPU (Thermoplastic Polyurethane) – Rubber-like flexibility.
Final Thoughts
Whether you need a few precision CNC-machined plastic parts, custom silicone buttons, or mass-produced injection-molded components, the right choice depends on your budget, timeline, and volume.
| | CNC Turning, CNC Milling, Laser Cutting, Bending, Spining, Wire Cutting, Stamping, Electric Discharge Machining (EDM), Injection Molding,3D Printing,Rapid Prototype,Moulds etc. |
| | Aluminum: 2000 series, 6000 series, 7075, 5052, etc. |
| Stainlesss steel: SUS303, SUS304, SS316, SS316L, 17-4PH, etc. |
| Steel: 1214L/1215/1045/4140/SCM440/40CrMo, etc. |
| Brass: 260, C360, H59, H60, H62, H63, H65, H68, H70, Bronze, Copper |
| Titanium: Grade F1-F5 |
| Plastic: Acetal/POM/PA/Nylon/PC/PMMA/PVC/PU/Acrylic/ABS/PTFE/PEEK etc. |
| | Anodized, Bead Blasted, Silk Screen, PVD Plating, Zinc/Nickl/Chrome/Titanium Plating, Brushing, Painting, Powder Coated, Passivation, Electrophoresis, Electro Polishing, Knurl, Laser/Etch/Engrave etc. |
| | ±0.002 ~ ±0.005mm |
| | Min Ra 0.1~3.2 |
| CERTIFICATE | ISO9001:2015,AS9100D,ISO13485:2016,ISO45001:2018,IATF16949:2016,ISO14001:2015,ROSH,CE etc. |
FAQ
1. Are you a manufacturer or a trading company?
We are a factory located in Shenzhen, China, with 20 years of rich experience,
covering 6000 square meters. Complete facilities, including 3D quality inspection equipment, ERP system and 40 machines. If necessary, we can provide you with material certificates, sample quality inspection and other reports.
2. How to get a quote?
Detailed drawings (PDF/STEP/IGS/DWG...), including quality, delivery date, materials, quality, quantity, surface treatment and other information.
3. Can I get a quotation without drawings?
Can your engineering team draw for my creativity? Of course, we are also glad to receive your samples, pictures or detailed size drafts for accurate quotation.
4. Can you provide samples before mass production?
Of course, the sample fee is necessary. If possible, it will be returned during mass production.
5. What is the delivery date?
Generally, the sample lasts for 1-2 weeks and the batch production lasts for 3-4 weeks.
6. How do you control quality?
(1) Material Inspection - Check material surfaces and approximate dimensions.
(2) First inspection of production - ensure
critical dimensions in mass production.
(3) Sampling inspection - check the quality before delivery to the warehouse.
(4) Preshipment inspection - 100% inspection by QC assistant before shipment.
7. After sales service team
If you have any problems after receiving the product, you can provide feedback through voice call, video conference, email, etc. within one month. Our team will provide you with solutions within a week.
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CNC Machined Plastic Parts Silicone Buttons Custom Injection Molding Service Images
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