Custom CNC Machining Services
Accelerate your prototyping and production with precision CNC-machined parts, crafted from a range of metals and plastics. Enjoy free quotes and fast delivery times, with certified quality and flexibility for projects of any size.
- Rapid delivery, with parts available as fast as 1 day
- ISO-certified for quality assurance and high precision
- Scalable production from single prototypes to 100,000+ units
Our Precision CNC Machining Capabilities
We are always ready for the challenges of tight tolerances and complex CNC machined parts. Try out our comprehensive CNC machining services today.
3-Axis and 4-Axis CNC Milling
Our 3-axis and 4-axis CNC milling machines can produce precision components with complex geometries at high-speed, allowing us to meet tight tolerances and deliver accurate parts.
5-Axis CNC Milling
Parts requiring the highest complexity are made using 5-axis CNC milling which allows machining from multiple angles in a single setup. It improves precision, dimensional accuracy, and production time.
CNC Turning
CNC turning capabilities create round or cylindrical parts with precision. It is compatible with different materials, including metals and plastics, while maintaining strict tolerances.
CNC Machined Parts Gallery
Explore our precision-machined components for various industries and discover innovative designs and craftsmanship that might meet your manufacturing needs
Why Choose Us
Experienced Manufacturer
With decades of CNC experience, GS Proto delivers top-quality services, ensuring every project meets industry standards.
In-house Equipment
Our advanced in-house facility, with CNC mills, lathes, and lasers, ensures faster production and better quality control.
Quality Inspection
We ensure quality with thorough inspections, ensuring each component meets clients' specifications before leaving our facility.
Fast, Reliable Delivery
Accelerate product development with quick-turn parts. Our automated design analysis identifies machining challenges early, preventing costly reworks.
Our Factory
Our CNC factory uses precision machines to carve and shape parts with high accuracy, ensuring top-quality results for your projects.
Start Your New CNC Quote
We are happy to accommodate you in person, on the phone, or over the web. Contact us today, let’s discuss your next project!
Our Available Materials for CNC Machining Service
Aluminum
Lightweight yet durable, aluminum offers excellent machinability and corrosion resistance. Perfect for aerospace and automotive applications, our CNC milling service delivers precision-engineered aluminum parts to meet your exact specifications.
Surface: Polishing, brushing, anodizing, powder coating, nickel plating, fluoropolymer coating, electrophoretic coating, passivation, etc.
Price: $
Build Time: 3-10 business days
Stainless Steel
Known for its excellent corrosion resistance, strength, and durability, stainless steel is ideal for medical, aerospace, and industrial applications.
Color : Silver-gray with a natural sheen
Surface :Polishing, brushing, passivation, electropolishing, black oxide coating, powder coating, PVD coating, sandblasting, etc.
Price : $$
Build Time: 7-12 business days
Steel
A strong and versatile material with high durability, steel is widely used in industrial, automotive, and structural applications.
Color: Silver-gray
Surface: Polishing, brushing, passivation, black oxide coating, zinc plating, nickel plating, powder coating, electrophoretic coating, etc.
Price: $$
Build Time: 7-12 business days
Brass
A corrosion-resistant alloy with excellent machinability, brass is widely used in precision instruments, fittings, and decorative applications.
Color: Gold-like yellow
Surface: Polishing, brushing, passivation, nickel plating, chrome plating, tin plating, gold plating, etc.
Price: $$
Build Time: 7-12 business days
Copper
Known for its excellent electrical and thermal conductivity, copper is ideal for electrical components, heat exchangers, and precision engineering applications.
Color: Reddish-brown, with potential patina over time
Surface: Polishing, brushing, passivation, nickel plating, tin plating, silver plating, gold plating, etc.
Price: $$$
Build Time: 10-15 business days
Bronze
A strong and wear-resistant alloy with excellent corrosion resistance, bronze is ideal for bearings, marine parts, and industrial applications.
Color: Reddish-brown
Surface: Polishing, brushing, passivation, tin plating, nickel plating, black oxide coating, etc.
Price: $$$
Build Time: 7-12 business days
Titanium
Known for its exceptional strength, corrosion resistance, and biocompatibility, titanium is widely used in aerospace, medical, and high-performance engineering applications.
Color: Metallic silver-gray
Surface: Polishing, anodizing, passivation, bead blasting, nitriding, PVD coating, fluoropolymer coating, etc.
Price: $$$$
Build Time: 10-15 business days
Magnesium
Extremely lightweight yet strong, magnesium is perfect for aerospace, automotive, and electronics applications requiring high strength-to-weight ratios.
Color: Light gray with a matte or metallic finish
Surface: Polishing, anodizing, chromate conversion coating, passivation, powder coating, fluoropolymer coating, etc.
Price: $$$
Build Time: 10-15 business days
PMMA (Acrylic)
A lightweight and highly transparent plastic, PMMA offers excellent optical clarity, weather resistance, and good machinability, making it ideal for display panels, lenses, and signage.
Color: Transparent, white, black, or custom-dyed
Surface: Smooth machined finish, polishing, sanding, vapor smoothing, painting, etc.
Price: $$
Build Time: 5-7 business days
ABS
A lightweight and impact-resistant thermoplastic, ABS offers good machinability and is widely used in prototyping, consumer products, and automotive applications.
Color: Natural white, black, or custom-dyed
Surface: Smooth machined finish, sanding, painting, vapor smoothing, electroplating, etc.
Price: $
Build Time: 5-7 business days
PC (Polycarbonate)
A strong and impact-resistant thermoplastic, PC offers excellent transparency, heat resistance, and durability, making it ideal for protective covers, lenses, and mechanical components.
Color: Transparent, black, or custom-dyed
Surface: Smooth machined finish, sanding, polishing, vapor smoothing, painting, etc.
Price: $$
Build Time: 5-7 business days
PEEK
A high-performance thermoplastic with exceptional mechanical strength, heat resistance, and chemical resistance, making it ideal for aerospace, medical, and automotive applications.
Color: Natural beige, black
Surface: Smooth machined finish, polishing, sandblasting, annealing, coating options available
Build Time: 7-10 business days
PTFE (Teflon)
Known for its exceptional chemical resistance, low friction, and high-temperature tolerance, PTFE is ideal for applications in aerospace, medical, and electrical industries.
Color: White, off-white
Surface: As-fabricated, grinding, polishing available
Build Time: 6-10 business days
PA (Nylon)
A tough and impact-resistant engineering plastic with good wear resistance and self-lubricating properties, commonly used in gears, bushings, and structural components.
Color: White, black, natural
Surface: Smooth machined finish, polishing, sandblasting
Price: $$ (Medium)
Build Time: 5-7 business days
PP (Polypropylene)
A lightweight and flexible plastic with excellent chemical resistance and impact strength, commonly used in medical, automotive, and industrial applications.
Color: White, translucent, black
Surface: Smooth machined finish, polishing
Price: $$
Build Time: 7-10 business days
POM
A strong and wear-resistant engineering plastic with excellent dimensional stability and low friction, widely used in gears, bearings, and precision mechanical parts.
Color: White, black, natural
Surface: Smooth machined finish, polishing, sandblasting
Price: $$
PE (Polyethylene)
A lightweight and flexible plastic with excellent chemical resistance and low friction, commonly used in food processing, medical, and industrial applications.
Color: White, black, natural
Surface: Smooth machined finish, polishing
Price: $
Build Time: 5-7 business days
HDPE (High-Density Polyethylene)
A strong, lightweight plastic with excellent impact resistance and chemical stability, ideal for industrial, medical, and food-grade applications.
Color: White, black, natural
Surface: Smooth machined finish, polishing
Price: $$
Build Time: 7-10 business days
HIPS (High Impact Polystyrene)
A lightweight and impact-resistant plastic with good machinability, commonly used for prototypes, packaging, and enclosures.
Color: White, black, natural
Surface: Smooth machined finish, polishing
Price: $$
Build Time: 7-10 business days
LDPE (Low-Density Polyethylene)
A flexible and lightweight plastic with excellent impact resistance and chemical stability, ideal for containers, liners, and soft-touch components.
Color: Translucent, white, black, natural
Surface: Smooth machined finish, limited polishing
Price: $$
Build Time: 7-10 business days
PBT (Polybutylene Terephthalate)
A strong, stiff, and chemically resistant thermoplastic with excellent electrical insulation properties, ideal for automotive and electronic components.
Color: White, black, natural, various custom colors
Surface: Smooth machined finish, limited polishing
Price: $$
Build Time: 7-10 business days
PPA (Polyphthalamide)
A high-performance thermoplastic with excellent mechanical strength, heat resistance, and chemical stability, ideal for automotive, aerospace, and industrial applications.
Color: Natural, black, various custom colors
Surface: Smooth machined finish, limited polishing
Price: $$
Build Time: 7-10 business days
PAI (Polyamide-imide)
An ultra-high-performance thermoplastic known for its exceptional mechanical strength, thermal stability, and wear resistance, making it ideal for aerospace, automotive, and industrial applications.
Color: Natural amber, black
Surface: Smooth machined finish, limited polishing
Price: $$$
Build Time: 7-10 business days
PET (Polyethylene Terephthalate)
A strong, lightweight, and wear-resistant plastic with excellent dimensional stability and low moisture absorption, commonly used in food packaging, electronics, and mechanical components.
Color: Transparent, white, black
Surface: Smooth machined finish, polishing available
Price: $$
Build Time: 5-10 business days
PPS (Polyphenylene Sulfide)
A high-performance engineering plastic known for its excellent chemical resistance, thermal stability, and mechanical strength, making it ideal for aerospace, automotive, and electronic components.
Color: Natural (beige), black
Surface: Smooth machined finish, polishing available
Price: $$$
Build Time: 5-10 business days
PS (Polystyrene)
A lightweight and rigid plastic with good machinability, commonly used for prototyping, packaging, and insulation applications.
Color: Transparent, white, black, various colors available
Surface: Smooth machined finish, polishing available
Price: $
Build Time: 5-10 business days
PVC (Polyvinyl Chloride)
A durable and versatile plastic with excellent chemical resistance, commonly used for industrial, construction, and electrical insulation applications.
Color: White, gray, black, various colors available
Surface: Smooth machined finish, polishing available
Price: $
Build Time: 5-10 business days
UPE
A durable plastic known for its excellent wear resistance, low friction, and high impact strength, making it ideal for industrial and medical applications.
Color: White, black, natural
Surface: Smooth machined finish, polishing available
Price: $$
Build Time: 5-10 business days
Bakelite
A rigid, heat-resistant, and electrically insulating material, making it ideal for electrical components, mechanical parts, and tooling applications.
Color: Brown, black, reddish-brown
Surface: Smooth machined finish, matte texture
Price: $$
Build Time: 5-10 business days
Our Surface Finishing Options for CNC machining
Our CNC machining services also offers a range of surface finishes to enhance the appearance and performance of your CNC machined parts. Below are the finishes, their colors, descriptions, and applicable materials:
| Surface Finish | Color | Description | Materials |
|---|---|---|---|
As-Machined
|
N/a | Parts are left with visible tool marks from the machining process. | Metals, Plastics |
Anodizing
|
Clear, Black, Custom | Electrochemical process that adds a corrosion-resistant oxide layer. | Aluminum |
Sand Blasting
|
Matte Gray | Creates a smooth, matte texture by blasting the surface with abrasives. | Metals, Plastics |
Powder Coating
|
Custom Colors | Durable, uniform color coating applied via electrostatic spraying. | Metals |
Electropolishing
|
Shiny Metal | Electrochemical polishing for a smooth, bright finish with reduced roughness. | Stainless Steel, Aluminum |
Brushing
|
Metallic | Satin finish with visible brush marks that create a uniform grain. | Metals |
Polishing
|
High Gloss | Buffing process that produces a mirror-like, reflective finish. | Metals, Plastics |
Electroplating
|
Silver, Gold, Nickel | Adds a thin layer of another metal for enhanced durability and appearance. | Steel, Copper, Brass |
Black Oxide
|
Black | Dark, mild corrosion-resistant coating for steel and stainless steel. | Steel, Stainless Steel |
Passivation
|
N/A | Chemical treatment that improves corrosion resistance, particularly for stainless steel. | Stainless Steel |
Heat Treatment
|
N/A | Controlled heating and cooling process to modify material properties like hardness. | Steel, Aluminum, Titanium |
Start A New CNC Machining Project
Ready to bring your design to life with precision? Get in touch today and let our expert team handle your CNC machining needs. We’ll deliver quality, on time!
Our CNC Machining General Tolerance
Precision and reliability in every detail—our CNC machining general tolerance ensures consistent quality for every project.
| Part length | Orientation and Form Tolerance | Angularity Tolerance |
|---|---|---|
| 0 to 12"(300 mm) | +/- 0.005" (0.125 mm) | Angularity +/- ½ degree |
| 12" to 24"(600 mm) | +/- 0.010" (0.250 mm) | Angularity +/- ½ degree |
| 24" - 36"(900 mm) | +/- 1/64" (0.016")(0.400 mm) | Angularity +/- 1 degree |
| 36" - 60"(1500 mm) | +/- 1/32" (0.031")(0.800 mm) | Angularity +/- 1 degree |
| Over 60" (> 1500 mm) | +/- 1/16" (0.063")(1.600 mm) | Angularity +/- 1 degree |
Note: The data in the table is for reference only; the actual data will be determined based on the specific situation.
Our CNC Factory Capabilities
| Feature | Description |
|---|---|
| Maximum Part Size |
CNC Milling: 4000 × 1500 × 600 mm CNC Turning: Φ900*900 |
| Minimum Part Size |
CNC Milling: 5 × 5 × 5 mm CNC Turning: 2 × 2 mm |
| Minimum Feature Size | Depending on the part's geometry and the selected material, a tolerance of 0.50 mm is achievable. |
| Minimum Wall Thickness | 0.5 mm |
| Minimum End Mill Size | 0.1 mm |
| Minimum Drill Size | 0.2 mm |
| Minimum Diameter | 0.3 mm |
Note: The data in the table is for reference only; the actual size will be determined based on the specific situation.
How to Work with GS Proto
Working with GS Proto CNC machining services China is efficient and straightforward. From CAD design submission to production, we streamline each step to deliver precise and quality results.
FAQs on Precision CNC Machining Services
Get A Free Project Review
We are happy to accommodate you in person, on the phone, or over the web. Contact us today, let’s discuss your next project!
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