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Rapid-Turn CNC Milling Service

This service delivers high-precision components, functional engineering prototypes, custom parts, and mold components with rapid turnaround and tight tolerances. It supports a wide range of materials, allowing prototype designs to replicate final product aesthetics while retaining flexibility for design iterations. Experienced CNC machinists leverage industry expertise to identify manufacturability issues early, ensuring a seamless transition from prototyping to mass production.

CNC Milling Service
CNC Turning Service

Rapid-Turn CNC Turning Service

Equipped with live tooling, this service enables simultaneous turning and milling—supporting features like axial/radial holes, flats, grooves, and slots. It facilitates high-speed machining of plastics and metals (from bar stock or block material), producing complex external and internal geometries with precision. The service covers the full lifecycle: from prototype development to mass production components.

Advantages of Our CNC Machining Services

• ISO 9001/13485 Certified:Meets regulated sector (medical/automotive) quality standards

• 3–7 Day Turnaround:Cuts lead times for time-sensitive projects

• ±0.01mm Precision:Delivers critical dimensional accuracy

60+ Materials (Plastics/Metals):Covers diverse custom component needs

10+ Years Expertise:Mitigates risks for complex designs

• 1–10k+ Scalable Production:Seamless prototype-to-volume transition

• Responsive Team:Real-time project support

Free DFM Analysis:Reduces rework costs early

 

Advantages of CNC Machining

Our CNC Material Options

Aluminum Stainless Steel Steel Brass Copper Titanium Zinc Alloy Others

Aluminum

Lightweight, strong, and CNC-machinable — ideal for precision components in aerospace & automotive. Corrosion resistance suits outdoor structural CNC parts.

· Aluminum 5082

· Aluminum 5083

· Aluminum 6060

· Aluminum 6061-T6 

· Aluminum 6063

· Aluminum 6082

· Aluminum 7075-T651

· Aluminum 2024 MIC-6

Aluminum

Stainless Steel

Rust/stain-resistant, CNC-friendly — perfect for medical equipment, kitchen appliances, architectural CNC components, and automotive parts.

· Stainless Steel 301
· Stainless Steel 303 

· Stainless Steel 304
· Stainless Steel 316 

· Stainless Steel 420

· Stainless Steel 440

· Stainless Steel 455

· Stainless Steel 465
· Stainless Steel 630 /17-4 PH

Stainless Steel

Tool Steel

High-tensile strength, versatile for CNC machining — suited for structural components, tools, and machinery parts (specialized subtypes enhance performance).

· 1040 Steel

· # 45 Steel

· D2 Tool Steel 

· P20 Tool Steel

· 718 Steel

· 738 Steel 

· NAK 80 Tool Steel

· S136 Steel 

· S235 Steel 

· A2 Steel

· Mild Steel

Tool Steel

Brass

Low-friction, excellent electrical conductivity, and CNC-machinable — used for handles, automotive terminals, musical instruments (golden finish boosts aesthetic appeal).

 

· H59

· H62

Brass

Copper


Superior thermal/electrical conductivity, ductile, corrosion-resistant, weldable — ideal for precision CNC components needing conductive properties.

Titanium

Titanium

CNC-machinable for high-performance parts — used in aerospace, medical/surgical equipment, compressor blades, airframe components, and marine/military parts.

 

· Ti6AL-4V

· TC4

· TC5

· Ti-6Al-4V-ELI

Copper

Zinc Alloy

Biodegradable, corrosion-resistant; our go-to Zamak 3 has copper-like machinability (gentler on CNC tools) — used for automotive shells, small motor casings, complex housings.

 

· Zamak 3

· Zamak 5

Zinc Alloy

Others

Diverse specialty materials (high-temperature resistance, enhanced hardness, lightweight properties) — support specialized CNC mechanical project needs.

· Chromium: Cr 0.90-1.20
· Magnesium: AZ31B
· Nickel: Nickel 200

 

· Cobalt: Co 99.95
· Beryllium: BeCu C17200
· Cobalt-Chromium Alloy: CoCrMo F75

 

Plastics

Plastics

ABS POM PMMA (Acrylic) PC PEEK PP PPSU Others

ABS

Tough, heat/impact-resistant, lightweight, and CNC-machinable — ideal for CNC-machined car parts and consumer goods (balances durability & cost).

 

Available Colors:
Natural (slightly yellowish semi-transparent), white, black, gray, red, blue, yellow, orange, and green.

Aluminum

POM

High hardness, wear resistance, dimensional stability — perfect for CNC-machined mechanical transmission components (gears, lead screws).

 

Available Colors: 
Natural (pale yellow/milky opaque), white, black, red, blue, and green.

Stainless Steel

PMMA (Acrylic)

High light transmittance, weather resistance, shapeable — suited for CNC-machined optical parts and display props.

 

Available Colors: 
Transparent (high-light-transmittance classic), white, black, red, blue, yellow, orange, green, purple, and pink.

Tool Steel

Polycarbonate (PC)

High strength, impact resistance, dimensional stability — used for CNC-machined optical/protective components and electronic enclosures.

 

Available Colors: 
Transparent (high-light-transmittance common), white, black, gray, red, blue, yellow, green, and orange.

Brass

PEEK


High-temperature/chemical resistance, strong mechanical properties — ideal for CNC machining in aerospace/medical high-end components.

 

Available Colors: 
Natural (brownish-tan), black (carbon-black modified), red and blue.

Titanium

Polypropylene (PP)

Lightweight, flexible, chemically resistant — fits CNC-machinable food-contact parts, medical light-duty components, and daily goods.

 

Available Colors: 
Natural (semi-transparent), White, gray, blue, green, yellow, orange, red and purple.

 

Copper

Polyphenylsulfone (PPSU)

High-temperature/hydrolysis resistance, mechanical strength — used for CNC-machined medical components (baby bottles) and high-end electronics.

 

Available Colors: 
Transparent (amber semi-transparent, iconic), black (modified), light blue and light green.

Zinc Alloy

Other Plastics Materials

· HDPE                              
· PA6                                  
· PBT                                 
· PEI                                  
· PET

 · PPS

 · PC+GF

 · PTFE

 · PE

Plastics

Our CNC Surface Finishing Options

Anodizing Polishing Sandblasting Painting Powder Coating Electroplating

Anodizing

Anodizing is a leading surface treatment for CNC machined rapid prototyping parts and production components. It boosts corrosion resistance, enhances wear resistance & surface hardness, and protects metal surfaces—making it ideal for CNC-machined mechanical parts, aircraft components, automotive parts, and precision instruments.


At Marigold Rapid, we provide custom anodizing for CNC-machined aluminum parts (and compatible metals) in colors including clear, black, red, blue, gold, and grey—tailored to your aesthetic and functional requirements.

Copper

Polishing

Polishing is a precision process for CNC machined parts, creating smooth, glossy surfaces via physical rubbing or chemical treatment. It’s compatible with common CNC-machined metals (aluminum, brass, stainless steel, tool steel) and ideal for CNC prototypes or production components that need enhanced aesthetics, reduced friction, or improved dimensional uniformity.

Sandblasting

Sandblasting

Sandblasting delivers uniform matte-textured surfaces for CNC machined rapid prototypes and components. It’s used for visual-focused applications and acts as a pre-treatment (e.g., for anodizing) to boost coating adhesion.


This service works with diverse CNC machinable materials (ABS plastic, aluminum, brass, stainless steel, tool steel)—aligning with prototype and low-volume production needs.

Anodizing

Painting

Painting is a versatile treatment for CNC machined industrial parts and consumer goods. We offer customizable finishes: matte, glossy, textured, soft-touch coatings, plus unlimited color options.


At Marigold Rapid, we use Pantone/RAL color codes for precise matching; we also accept customer golden samples to align with your design vision for CNC-machined components.

 

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Painting

Powder Coating

Powder coating is a high-durability treatment for CNC machined parts: applied as dry powder (electrostatically) and cured with heat/UV light (no evaporating solvents).


Our service includes standard black/white finishes, custom RAL/Pantone colors, and matte/glossy textures—ideal for CNC-machined components needing long-lasting wear/corrosion resistance.

Powder Coating

Electroplating

Electroplating modifies CNC machined parts’ surface properties for functional needs. Key benefits for CNC-machined components include:

· Enhanced wear resistance for high-friction parts
· Increased metal surface thickness for durability
· Boosted electrical conductivity (e.g., copper plating for electrical parts)
· Reduced friction for mechanical transmission components
· Improved surface uniformity for precision assemblies

Polishing

Our CNC Machining Tolerance

Our general tolerances for CNC machining of metals is DIN-2768-1-fine and for plastics DIN-2768-1-medium. Tolerances are greatly affected by part geometry and type of material. Our sales executives will consult with you on every project and we always aim to provide the best tolerance to you.

Type Tolerance
Linear dimension +/-0.025 mm
+/-0.001 inch
Hole diameters(not reamed) +/-0.025 mm
+/-0.001 inch
Shaft diameters +/-0.025 mm
+/-0.001 inch
Part size limit 950*550*480mm
37.0*21.5*18.5 inch

Customer Satisfaction: Our Precision Manufacturing Priority

At Marigold Rapid, customer satisfaction anchors our custom precision parts services: responsive, reliable, and flexible, we streamline global clients’ new product development—from R&D prototyping to low-volume production—via fast quote/part turnaround, getting their innovations to market faster.

1–24 Hour Precision Prototype Quote Turnaround

Free DFM (Design for Manufacturing) Analysis (for Custom Precision Parts)

Scalable Production: 1-Piece Prototype to 10k+ Low-Volume Precision Parts

10+ Precision Manufacturing Processes (CNC Machining, Sheet Metal Fabrication, Injection Molding)

Dedicated Precision Manufacturing Team 

 

3-Step Quality Inspections + Free FAI Reports (ISO 9001/13485 Compliant)

QUALITY IS GUARANTEED

CNC Parts We Made