Custom CNC Milling Services

Get high-precision CNC milled parts engineered for accuracy, repeatability, and fast production. We deliver consistent results across metals and plastics using advanced 3-axis, 4-axis, and 5-axis CNC milling systems—ideal for prototypes, tooling, and full-scale manufacturing. Every part is machined for dimensional stability, clean surface finishes, and reliable performance in demanding applications.

Fast quoting, tight tolerances, and secure global delivery supported by certified quality processes.
ISO 9001:2015 | AS9100D | ISO 13485 | Conformidade com ITAR

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ISO 9001:2015 | AS9100D | ISO 13485 | Conformidade com ITAR

O Yicenprecision Instant Quoting Engine está coberto pelas Patentes U.S. Nos. 11,086,292, 11,347,201, 11,693,388, 11,698,623, 12,099,341, e 12,189,361. Outras patentes pendentes.

What Is CNC Milling?

CNC milling is a subtractive machining process that uses multi-axis motion control, rotary cutting toolse digital toolpaths to produce accurate, repeatable parts from aluminum, stainless steel, steel alloys, brass, copper, and engineering plastics. It supports complex geometries, stable dimensional accuracy, and consistent surface roughness for both prototypes and production parts.

Precision features: pockets, contours, slots, chamfers, radii

Tight-tolerance components requiring GD&T-controlled datums

Parts needing flatness, parallelism, and positional accuracy

Prototype, low-volume, and production machining workflows

Maximum CNC Milling Capabilities

Our CNC turning capabilities are engineered for consistent accuracy, smooth finishes, and efficient production cycles across metal and plastic components. Each setup supports reliable machining for both prototypes and large-batch manufacturing.

Efficient machining for flat surfaces, pockets, contours, and prismatic shapes with stable dimensional accuracy.

Improved tool access and multi-face machining that reduces setups and enhances alignment for complex parts.

High-precision machining for complex surfaces, deep features, and aerospace/medical-grade components requiring tight GD&T control.

Supports aluminum, stainless steel, steel alloys, copper alloys, titanium, and engineering plastics (ABS, POM, Nylon, PEEK, PC).

CNC Milling Tolerances

Our turning centers support a wide range of diameters, lengths, and feature types, ensuring reliable machining for small precision components and larger rotational parts.

Capability	3-Axis CNC Milling	4-Axis CNC Milling	5-Axis CNC Milling
Maximum Part Size	1000 × 500 × 500 mm	1000 × 500 × 500 mm	4000 × 1500 × 600 mm
Minimum Part Size	5 × 5 × 5 mm	5 × 5 × 5 mm	5 × 5 × 5 mm
General Tolerances	±0.10 mm	±0.08 mm	±0.05 mm
Tolerâncias alcançáveis	±0.02 mm	±0.01 mm	±0.005 mm

Materials for CNC Milling Service Parts

Engenheiros e fabricantes líderes confiam na Yicen Precision para iterações rápidas e peças duráveis e de alto desempenho. Quer se trate de protótipos ou de produção em grande escala, a nossa vasta seleção de materiais garante precisão, resistência e fiabilidade para qualquer projeto de maquinagem CNC.

Liga de alumínio	Descrição	Opções de acabamento	Aplicações
6061	Versatile, structural alloy	Anodização, polimento	Automotive, Aerospace
7075	High strength, military grade	Anodizing, Coating	Aircraft, Defense
2024	High fatigue resistance	Cladding, Painting	Structural Components
5052	Marine grade, corrosion resistant	Painting, Polishing	Marine, Sheet Metal
5083	Extreme environment performance	Anodizing, Painting	Chemical, Industrial
6082	Excellent extrudability	Revestimento em pó, polimento	Window Frames
7050	Stress corrosion resistance	Anodizing, Cladding	High-stress Aerospace
1100	Commercially pure aluminum	Polimento, Anodização	Processamento de alimentos

Brass Type	Descrição	Opções de acabamento	Aplicações
C360	Free-cutting, high machinability	Polishing, Lacquering	Plumbing, Fittings
C464	Naval brass, seawater resistant	Bead Blasting, Polishing	Marine Hardware
C260	Cartridge brass, highly ductile	Polimento, revestimento	Automotive Parts
C353	Leaded brass for precision	Deburring, Buffing	Gears, Watch Parts
C857	Leaded yellow brass	Polishing, Plating	Decorative Ornaments
C485	High speed machining naval brass	Bead Blasting, Coating	Fasteners, Valves
C687	Aluminum-brass for condensers	Polishing, Sanding	Heat Exchangers
C230	Red brass, acid resistant	Polishing, Lacquering	Architectural Pipes

Copper Type	Descrição	Opções de acabamento	Aplicações
C101	Oxygen-free, max conductivity	Polishing, Plating	Electrical Components
C110	Electrolytic tough pitch	Bead Blasting, Polishing	Power Connectors
C172	Beryllium copper, high strength	Revestimento, polimento	Precision Springs
C145	Tellurium copper, fast cutting	Deburring, Polishing	Nozzles, Tips
C510	Phosphor bronze, fatigue resistant	Sanding, Polishing	Bearing Sleeves
C122	Phosphorus-deoxidized copper	Polimento, revestimento	Refrigerator Tubes
C182	Chromium copper, heat stable	Bead Blasting, Coating	Resistance Welding
C706	Copper-nickel, subsea stable	Polishing, Sanding	Marine Piping

Stainless Type	Descrição	Opções de acabamento	Aplicações
304	Standard food-grade alloy	Passivation, Polishing	Sinks, Food Processing
316	Marine grade, acid resistant	Electropolishing, Sanding	Medical, Marine
303	Free-machining stainless	Bead Blasting, Polishing	Bolts, Shafts, Nuts
17-4 PH	Precipitation hardened steel	Revestimento, polimento	Defense, Aerospace
410	Wear resistant martensitic	Hardening, Polishing	Surgical Tools
430	Ferritic grade, good finish	Buffing, Polishing	Kitchen Appliances
2205	Duplex steel, high strength	Passivation, Deburring	Oil & Gas Equipment
440C	Ultra-hard, high carbon	Retificação de precisão	Ball Bearings

Liga de aço	Descrição	Opções de acabamento	Aplicações
4140	Chromium-molybdenum steel	Black Oxide, Hardening	Axles, Heavy Gears
1018	Mild low-carbon steel	Case Hardening, Sanding	Fixtures, Rods, Pins
12L14	Resulfurized for fast speed	Zinc Plating, Polishing	Screw Machine Parts
8620	Nickel-chrome-moly alloy	Carburizing, Sanding	Heavy-duty Gears
4340	High toughness, high stress	Heat Treating, Coating	Aircraft Landing Gear
1045	Medium carbon, moderate strength	Hardening, Polishing	Crankshafts, Bolts
52100	High-wear chromium steel	Precision Polishing	Bearings, Bushings
A36	Structural steel for construction	Painting, Sanding	Brackets, Plates

Titanium Type	Descrição	Opções de acabamento	Aplicações
Grau 5	Ti-6Al-4V, aerospace standard	Polishing, Blasting	Lâminas de turbina
Grau 2	Pure titanium, acid stable	Blasting, Passivation	Chemical Processing
Grau 23	High purity medical grade	Deburring, Polishing	Surgical Implants
9º ano	Mid-strength for hydraulics	Anodização, polimento	Hydraulic Tubing
Grau 1	Softest, most ductile grade	Polishing, Sanding	Heat Exchangers
Grau 7	Palladium-enhanced titanium	Deburring, Blasting	Specialty Valves
12º ano	Superior heat resistance	Polimento, revestimento	Industrial Tanks
Beta-C	Flexible for high-end springs	Anodizing, Buffing	Racing Car Springs

Material plástico	Key Description	Opções de acabamento	Key Applications
ABS	Tough, impact-resistant, and cost-effective.	Painting, Sanding, Polishing	Prototypes, Enclosures
Nylon (PA6)	High strength with excellent wear resistance.	As-machined, Sanding	Gears, Bearings, Bushings
Polycarbonate (PC)	High impact strength and optical clarity.	Vapor Polishing, Sanding	Safety Shields, Lenses
POM (Delrin)	High stiffness and very low friction.	As-machined, Deburring	Precision Gears, Fasteners
PEEK	High-performance plastic with heat resistance.	Polishing, Bead Blasting	Aerospace, Medical Implants
PTFE (Teflon)	Exceptional chemical and heat resistance.	As-machined, Sanding	Gaskets, Chemical Seals
Acrylic (PMMA)	Excellent transparency and weather resistance.	Mirror Polishing, Sanding	Display Cases, Signage
PVC	Cost-effective and chemically stable.	Painting, Sanding	Pipes, Chemical Tanks
PEAD	High moisture resistance and impact strength.	As-machined, Deburring	Food Processing, Containers
UHMWPE	Extreme wear resistance and self-lubricating.	As-machined, Sanding	Conveyor Guides, Liners
PET	High dimensional stability and strength.	Polishing, Sanding	Food Packaging, Frames
Ultem (PEI)	High dielectric strength and heat resistance.	Bead Blasting, Sanding	Electrical Insulators

CNC Milled & Precisioned Components

Descubra os nossos especialistas precision cnc milling servicesonde a precisão encontra o desempenho em todas as fases. Desde protótipos complexos a componentes prontos a produzir, os nossos custom cnc milling services fornecer peças de alta precisão. Cada corte, cada contorno, trabalhado com uma qualidade excecional, consistência e atenção aos detalhes.

Surface Finishing for CNC Milling

Precision-milled parts benefit from specialized surface treatments that enhance strength, durability, and overall performance. These treatments are ideal for optimizing the functionality of shafts, bushings, and cylindrical components.

Como moído

The most economical option with a standard roughness of 125 µin Ra. It features visible tool marks, but we ensure all sharp burrs are removed for a clean, professional feel.

Cromagem dura

Adds a thick chromium layer to significantly boost surface hardness and durability. It’s the ideal solution for high-friction milling parts like shafts and pistons.

Niquelagem

Uma fina camada de níquel galvanizado que melhora a resistência ao desgaste e à corrosão. Proporciona um acabamento brilhante e atrativo para peças funcionais.

Óxido preto

Um tratamento químico que cria uma superfície escura e preta mate nas peças de aço. Oferece uma ligeira resistência à corrosão e reduz o reflexo da luz.

Acabamento polido

Um acabamento liso e brilhante obtido por polimento mecânico. Ideal para peças decorativas que exijam um brilho melhorado e uma rugosidade reduzida.

Acabamento escovado

Uma textura linear e acetinada criada com cintas abrasivas ou escovas. Reduz as pequenas imperfeições e oferece um aspeto limpo e decorativo.

Personalizado

Precisa de um acabamento específico? Envie um pedido de cotação e nós trabalharemos consigo para encontrar uma solução à medida do seu projeto.

Explosão de contas

Cria um acabamento liso e mate através de jato de areia, normalmente com esferas de vidro, oferecendo uma estética melhorada e uma textura de superfície uniforme.

CNC Milling Design Guidelines

These guidelines help ensure machinability, stable tolerances, and predictable surface quality for CNC-milled parts.

Design Feature	Orientação recomendada	Why It Matters
Espessura mínima da parede	Metais: ≥ 0,8-1,0 mm Plásticos: ≥ 1,2-1,5 mm	Prevents vibration, tool chatter, and part deformation.
Raios internos	Radius ≥ 0.5 × tool diameter (Avoid sharp inside corners)	Improves tool access and reduces machining time.
Pocket & Cavity Depth	Depth ≤ 10× tool diameter	Deep pockets reduce accuracy and surface finish.
Roscas e furos roscados	Hole depth: 3× Ø (small) / 4–8× Ø (larger)	Ensures clean threads and tool stability.
Texto e gravação	Min width: 0.5 mm / Min depth: 0.1 mm	Ensures clean, readable engraving for part marking.
Undercuts & Slots	Standard profiles: square, full-radius, dovetail	Improves tool compatibility and reduces cost.
Chamfers & Fillets	Use standard tool sizes; chamfers preferred for deburring	Enhances machinability and safe handling.
Tolerance Considerations	Tight tolerances (±0.001”) require GD&T drawings	Improves accuracy, inspection, and quoting clarity.

Limites de tamanho da fresagem CNC

Our turning centers support a wide range of diameters, lengths, and feature types, ensuring reliable machining for small precision components and larger rotational parts.

Tipo de fresagem	Maximum Size Limits	Ideal Applications	Notas
3-Axis CNC Milling	1000 × 600 × 400 mm	Flat surfaces, pockets, slots, profiles, precision 2.5D geometry	Best balance of speed, accuracy, and cost
4-Axis CNC Milling	Ø 250 mm × 400 mm (L)	Rotary features, angled cuts, spiral milling	Reduces multiple setups, improves concentricity
5-Axis CNC Milling	500 × 500 × 300 mm	Complex contours, deep cavities, multi-angle surfaces	Enables single-setup machining and superior surface finish

Capacidades de garantia de qualidade e inspeção

Our CNC milling quality workflow focuses on dimensional accuracy, surface integritye GD&T-controlled features across prototypes and production parts.

Precisão dimensional

Parts are checked on calibrated equipment, including CMM, digital gauges, and precision metrology tools. We validate: Critical datums, Hole locations, and Feature relationships for GD&T-driven geometries

GD&T e verificação de tolerâncias

All cnc-milled components are inspected per ASME Y14.5 and ISO standards. Common controls verified: Position, Profile, Parallelism and Perpendicularity

Ensaios de superfície e acabamento

Surface and geometric characteristics are measured using roughness testers, granite plates, and runout indicators. Checks include: Ra profiling, Flatness & parallelism and Runout for rotating or mating surfaces

Rastreabilidade e relatórios

Relatórios FAI, certificados de materiais (MTR) e dados CMM disponíveis
Rastreio de lotes para requisitos aeroespaciais, médicos e industriais
Manutenção segura de registos para uma pista de auditoria completa e conformidade de qualidade

Mais sobre nós

Indústrias que servimos

A Yicen Precision serve um vasto espetro de indústrias, abrangendo a indústria aeroespacial, automóvel, eletrónica, médica e muito mais. Somos especializados no fornecimento de peças fiáveis e de alta qualidade, concebidas para responder aos desafios de engenharia únicos de cada indústria.

Indústria aeroespacial

O nosso processo de encomenda simplificado

Carregar o seu desenho

Para começar, carregue facilmente os seus ficheiros CAD através da nossa plataforma online segura.

Personalize os seus requisitos

Escolha o material, o acabamento, as tolerâncias e o prazo de entrega preferido para corresponder às necessidades do seu projeto.

Obter um orçamento imediato

Receba um orçamento em tempo real com base no seu desenho e nas especificações selecionadas, sem atrasos.

Produção e entrega

As suas peças são fabricadas por parceiros de confiança, verificadas quanto à qualidade e entregues à sua porta atempadamente.

Vantagens

Advantages of CNC Milling

CNC milling provides a range of benefits, ensuring efficient, high-quality production.

High Accuracy: CNC milling machines offer tight tolerances, ensuring high precision and consistency in every part.
Complex Design Creation: With multi-axis movement, CNC milling can craft intricate shapes and complex features that are challenging to achieve manually.
Enhanced Efficiency: Automated processes allow for continuous production, reducing lead times and increasing productivity by minimizing downtime.
Material Flexibility: CNC milling works with various materials, including metals, plastics, and composites, making it adaptable for numerous applications.
Consistent Reproduction: Once a design is programmed, the machine can replicate parts with perfect consistency, reducing human error.
Speed:Though initial setup costs are high, the efficiency and precision of CNC milling reduce overall production costs, particularly for large runs.

Aplicações

Applications of CNC Milling

CNC milling is widely utilized in various industries to produce high-precision parts and components:

Engine Parts:Essential for manufacturing engine blocks, cylinder heads, and pistons, ensuring durability and performance in automotive and aerospace sectors.
Gear Components: Critical for producing gears, splines, and shafts with tight tolerances, widely used in machinery and automotive systems.
Dispositivos médicos:Used to create highly accurate implants, such as hip joints, dental implants, and surgical screws for the healthcare industry.
Electronic Enclosures:Produces housings for electronic devices, offering a secure fit and protection for sensitive circuit boards.
Custom Prototypes: Enables rapid prototyping for design testing and iteration, allowing designers to refine their products before mass production.
Tooling and Dies: Key for manufacturing molds, dies, and cutting tools that are used in various production processes.

Ligar-se a nós

Transformar conceitos em peças de precisão

Somos especialistas em converter as suas ideias em componentes funcionais de alta qualidade, com uma velocidade e precisão sem paralelo. Com tecnologia avançada e perícia artesanal, criamos peças que cumprem as especificações mais complexas.

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Resposta rápida garantida no prazo de 12 horas

Perguntas mais frequentes

Fresagem CNC

How can I reduce CNC milling costs without hurting quality?
To keep machining cost-effective:
- Avoid deep pockets beyond 10× tool diameter
- Use standard radii compatible with tool geometry
- Keep wall thickness above recommended minimums
- Avoid unnecessarily tight tolerances
- Choose common materials (6061, 304, POM, etc.)
- Design for single-setup machining
  These steps reduce cycle time, tool wear, and scrap risk.
Can you support both prototypes and mass production?
Yes.
- Prototyping: Fast iterations, material authenticity
- Low-volume runs: Consistent quality, reduced per-unit cost
- Mass production: Automated setups, multi-machine workflows, stable repeatability
- CNC milling scales well from 1 unit to thousands.
What file formats do you accept?

We accept all industry-standard CAD formats:
STEP, STP, IGES, SLDPRT, Parasolid, DXF, Fusion 360.
STEP is preferred because it preserves precise surfaces and dimensions needed for accurate toolpath generation.
How long does CNC milling take?
Lead times depend on material, geometry, and quantity:
- Prototypes: 1–3 days
- Functional parts: 3–7 days
- Finished/treated parts: 5–10 days
  We also support quick-turn machining for urgent projects.
Why do CNC-milled parts sometimes warp or distort?
Warping usually results from:
- Thin walls (<0.8 mm metal, <1.2 mm plastic)
- Large unsupported spans
- Internal material stress
  Aggressive tool pressure or heat buildup
  We review geometry during DFM and adjust material choice, fixturing, or toolpaths to prevent deformation.
How do you ensure machining accuracy and consistency?
Accuracy is maintained using:
- Inspeção CMM
- Laser and bore measurement tools
- Toolpath simulation
- High-rigidity workholding
- Controlled cutting parameters
- GD&T-based inspection
  Each batch can include FAI, CMM reports, and MTRs for traceability.
What is the difference between 3-axis, 4-axis, and 5-axis CNC milling?
- 3-Axis: Best for pockets, slots, simple contours.
- 4-Axis: Adds rotary motion for machining multiple faces in fewer setups.
- 5-Axis: Ideal for complex surfaces, angled features, deep cavities, aerospace/medical-grade geometries
  Higher axis count = fewer setups, better accuracy, and faster cycle times.
What materials are suitable for CNC milling?
We machine a wide range of engineering-grade materials:
- Metals: Aluminum (6061/7075), Stainless Steel (304/316/17-4), Brass, Copper, Steel, Tool Steel, Titanium
- Plastics: POM (Delrin), Nylon, PC, PEEK, PP, PTFE, PVC, ULTEM
- Material choice affects machinability, dimensional stability, tolerance capability, and surface finish.
What tolerances can you achieve?

Standard CNC milling tolerances are ±0.005″ (±0.127 mm).

For precision-critical features, we can reach ±0.001″ (±0.025 mm) with stable fixturing, optimized toolpaths, and machinable materials.

Flatness/parallelism can be held to ≤ 0.002″ per 6″ depending on part size and rigidity.
What is CNC milling used for?

CNC milling is used to produce precise metal and plastic components with flat surfaces, pockets, contours, and multi-axis geometries. It’s ideal for brackets, housings, enclosures, tooling plates, heat sinks, and structural parts across aerospace, medical, automotive, robotics, and industrial equipment sectors.