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軸、4軸、5軸CNCフライス加工 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｜ISO13485｜ITAR準拠

お見積もり

新しいCNC見積もりを始める

ISO 9001:2015｜AS9100D｜ISO13485｜ITAR準拠

第11,086,292号、第11,347,201号、第11,693,388号、第11,698,623号、第12,099,341号、第12,189,361号。その他特許出願中。

What Is CNC Milling?

CNC milling is a subtractive machining process that uses multi-axis motion control, rotary cutting toolsそして 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
最大部品サイズ	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
一般公差	±0.10 mm	±0.08 mm	±0.05 mm
Achievable Tolerances	±0.02 mm	±0.01 mm	±0.005 mm

Materials for CNC Milling Service Parts

Yicen Precisionは、迅速な試作と耐久性のある高性能部品を提供し、エンジニアや大手メーカーから信頼を得ています。プロトタイピングであれ、本格的な生産であれ、当社の豊富な材料セレクションは、あらゆるCNC機械加工プロジェクトの精度、強度、信頼性を保証します。

アルミニウム合金	説明	仕上げオプション	アプリケーション
6061	Versatile, structural alloy	Anodizing, Polishing	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	Powder Coating, Polishing	Window Frames
7050	Stress corrosion resistance	Anodizing, Cladding	High-stress Aerospace
1100	Commercially pure aluminum	Polishing, Anodizing	食品加工

Brass Type	説明	仕上げオプション	アプリケーション
C360	Free-cutting, high machinability	Polishing, Lacquering	Plumbing, Fittings
C464	Naval brass, seawater resistant	Bead Blasting, Polishing	Marine Hardware
C260	Cartridge brass, highly ductile	Polishing, Coating	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	説明	仕上げオプション	アプリケーション
C101	Oxygen-free, max conductivity	Polishing, Plating	Electrical Components
C110	Electrolytic tough pitch	Bead Blasting, Polishing	Power Connectors
C172	Beryllium copper, high strength	Coating, Polishing	Precision Springs
C145	Tellurium copper, fast cutting	Deburring, Polishing	Nozzles, Tips
C510	Phosphor bronze, fatigue resistant	Sanding, Polishing	Bearing Sleeves
C122	Phosphorus-deoxidized copper	Polishing, Coating	Refrigerator Tubes
C182	Chromium copper, heat stable	Bead Blasting, Coating	Resistance Welding
C706	Copper-nickel, subsea stable	Polishing, Sanding	Marine Piping

Stainless Type	説明	仕上げオプション	アプリケーション
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	Coating, Polishing	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	精密研削	Ball Bearings

合金鋼	説明	仕上げオプション	アプリケーション
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	説明	仕上げオプション	アプリケーション
Grade 5	Ti-6Al-4V, aerospace standard	Polishing, Blasting	タービンブレード
グレード2	Pure titanium, acid stable	Blasting, Passivation	Chemical Processing
Grade 23	High purity medical grade	Deburring, Polishing	Surgical Implants
9年生	Mid-strength for hydraulics	Anodizing, Polishing	Hydraulic Tubing
グレード1	Softest, most ductile grade	Polishing, Sanding	Heat Exchangers
グレード7	Palladium-enhanced titanium	Deburring, Blasting	Specialty Valves
12年生	Superior heat resistance	Polishing, Coating	Industrial Tanks
Beta-C	Flexible for high-end springs	Anodizing, Buffing	Racing Car Springs

プラスチック素材	Key Description	仕上げオプション	主な用途
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
ポリカーボネート（PC）	High impact strength and optical clarity.	Vapor Polishing, Sanding	Safety Shields, Lenses
POM（デルリン）	High stiffness and very low friction.	As-machined, Deburring	Precision Gears, Fasteners
覗き見	High-performance plastic with heat resistance.	Polishing, Bead Blasting	Aerospace, Medical Implants
PTFE（テフロン）	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
高密度ポリエチレン	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

エキスパート precision cnc milling services, where accuracy meets performance at every stage. From intricate prototypes to production-ready components, our custom cnc milling services deliver high-accuracy parts. Every cut, every contour, crafted with exceptional quality, consistency, and attention to detail.

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.

アズ・ミル

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.

硬質クロムメッキ

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.

ニッケルめっき

耐摩耗性と耐食性を高める薄い電気めっきニッケル層。機能部品に明るく魅力的な仕上げを提供します。

ブラックオキサイド

スチール部品の表面を黒くつや消しの黒色にする化学処理。穏やかな耐食性を提供し、光の反射を抑える。

ポリッシュ仕上げ

機械的バフ研磨により、滑らかで光沢のある仕上がりが得られます。光沢が必要な装飾部品に最適。

ブラッシュ仕上げ

研磨ベルトやブラシを使った、直線的でサテンのようなテクスチャー。細かな凹凸を減らし、きれいで装飾的な外観に仕上げる。

カスタム

特定の仕上げが必要ですか？RFQをご提出いただければ、お客様のプロジェクトに合わせたソリューションをご提案いたします。

ビーズブラスト

通常ガラスビーズを使用するメディアブラストにより、滑らかでマットな仕上がりを実現。

CNC Milling Design Guidelines

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

Design Feature	Recommended Guideline	なぜ重要なのか
最小肉厚	Metals: ≥ 0.8–1.0 mm Plastics: ≥ 1.2–1.5 mm	Prevents vibration, tool chatter, and part deformation.
Internal Radii	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.
Threads & Tapped Holes	Hole depth: 3× Ø (small) / 4–8× Ø (larger)	Ensures clean threads and tool stability.
Text & Engraving	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.

CNC Milling Size Limits

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

Milling Type	Maximum Size Limits	理想的なアプリケーション	備考
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

Quality Assurance & Inspection Capabilities

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

寸法精度

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 & Tolerance Verification

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

Surface & Finish Testing

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

Traceability & Reporting

FAI reports, material certificates (MTRs), and CMM data available
Lot tracking for aerospace, medical, and industrial requirements
Secure record-keeping for full audit trail and quality compliance

会社概要

対象業界

Yicen Precisionは、航空宇宙、自動車、エレクトロニクス、医療など、幅広い業界にサービスを提供しています。私たちは、各業界のユニークなエンジニアリングの課題を満たすために調整された高品質で信頼性の高い部品を提供することを専門としています。

合理化された注文プロセス

デザインのアップロード

当社の安全なオンラインプラットフォームからCADファイルを簡単にアップロードして、作業を開始できます。

要件をカスタマイズする

お客様のプロジェクトのニーズに合わせて、材料、仕上げ、公差、ご希望のリードタイムをお選びください。

お見積もり

お客様のデザインと選択された仕様に基づき、リアルタイムでお見積もりをお出しします。

生産と配送

お客様の部品は、信頼できるパートナーによって製造され、品質検査が行われた後、納期通りにお客様のお手元に届けられます。

Advantages

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.
スピードだ：Though initial setup costs are high, the efficiency and precision of CNC milling reduce overall production costs, particularly for large runs.

アプリケーション

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.
医療機器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.

私たちとつながる

コンセプトを精密部品に変える

私たちは、お客様のアイデアを比類のないスピードと精度で、高品質で機能的な部品に変換することを専門としています。高度な技術と熟練した職人技で、最も複雑な仕様を満たす部品を作り出します。

お見積もり

お問い合わせ

12時間以内の迅速な対応を保証

よくある質問

CNCフライス加工

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:
- CMM検査
- 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.