Custom Online CNC Machining Services

Get instant quotes and fast-turn production for precision metal and plastic parts. Yicen delivers high-accuracy components through advanced 3-axis, 4-axis, and 5-axis CNC machining, achieving tolerances down to ±0.001 in (±0.025 mm) with consistent, repeatable quality across prototypes and production runs.

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ISO 9001:2015 | AS9100D | ISO 13485 | ITAR Compliant

Yicenprecision Instant Quoting Engine is covered by U.S. Pat. Nos. 11,086,292, 11,347,201, 11,693,388, 11,698,623, 12,099,341, and 12,189,361. Other patents pending.

Why Choose Yicen Precision to CNC Machining?

Yicen provides high-quality and tight-tolerance machining that is backed by elaborate equipment, engineering skills and approved quality control. All components are manufactured with precision, consistent lead times and dependable worldwide supply.

Unmatched Accuracy

Multi-axis machining to within +-0.001 in (+-0.025 mm) and consistent GD&T compliance on both metals and plastics.

DFAM Support ( by engineering).

Your CAD is evaluated by senior engineers, geometry is optimized, and better-performing and less expensive materials and toolpaths are suggested.

Quick TT and Mass Production.

Machining centers with high capacity allow quick prototyping, low volume production, and any scale of production without delays.

80+ Certified Materials

Aluminum, steel, stainless, brass, copper, titanium, engineering plastics, high-temp polymers, and demand sourcing.

Qualified Quality Assurance.

CMM inspection, ISO compatible workflows, dimensional reports and aerospace, medical and industrial traceability.

Consistent Customer Service

Transparency with projects, safety in file management, and uninterrupted global shipping with engineering support at all levels.

CNC Machining Capabilities for Custom Precision Parts

With our developed manufacturing capacity, we will be able to produce high-precision metal and plastic parts, which produce the same level of consistency in the quality of prototypes, tooling, and full production. Having started with multi-axis milling, Yicen Precision has ensured reliability in the results even with most complex geometries, in terms of turning and development of the fixtures.

Grinding Type Typical Tolerance Range (mm) Surface Finish (Ra, µm) Application Examples
Surface Grinding ±0.002 to ±0.01 0.1 – 0.8 Die plates, flat tooling components, fixture bases
Cylindrical Grinding (OD/ID) ±0.001 to ±0.005 0.2 – 0.6 Shafts, bushings, hydraulic spools
Centerless Grinding ±0.001 to ±0.005 0.1 – 0.4 High-volume pins, rods, tubes
Form Grinding ±0.002 to ±0.01 0.2 – 0.6 Gear profiles, punch dies, custom contours
Jig Grinding ±0.001 to ±0.003 0.1 – 0.3 Precision holes, mold cavities, aerospace parts
Flat Lapping / Honing ±0.0005 to ±0.003 0.05 – 0.2 Optical components, sealing surfaces

Surface Finishing for Precision Grinding

At Yicen Precision, precision grinding delivers exceptionally flat, smooth surfaces with tight dimensional tolerances, ideal for components requiring high accuracy and superior finish quality.

Deburring
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Removes sharp edges and burrs created during cutting to improve safety and provide a clean, finished look.

Bead Blasting
cnc aluminum anodizing

 Uses high-pressure blasting with fine media to create a smooth, matte surface. Ideal for achieving a uniform finish and removing minor imperfections.

Chemical Cleaning (Pickling)
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Removes oxidation, scale, and surface contaminants to restore and prepare metal surfaces after cutting.

Brushing
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 Applies a uniform, subtle texture using abrasive brushes for an attractive and tactile surface.

Polishing
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Mechanically smooths surfaces to achieve a high-gloss, reflective finish—ideal for decorative or consumer-facing parts.

Tumbling
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Smooths and rounds edges of small parts by vibrating them with abrasive media, improving finish and handling safety.

Powder Coating
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Applies a durable, protective coating that improves corrosion resistance and allows for various color options. Perfect for functional and aesthetic applications.

Anodizing
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 Adds a corrosion-resistant oxide layer to aluminum parts and enables a range of color options for both protection and aesthetics.

CNC Machining Services
CNC Machining Services
CNC Machining Services
CNC Machining Services

Quality Assurance & Inspection Capabilities

Each CNC machined unit in Yicen Precision undergoes a verified inspection procedure complying with ISO 9001:2015, AS9100D and ISO 13485 standards.

Our metrology staff takes every part with prototype through to full production assurance to the defined GD&T and surface finish standards; traceable and acceptable.

Dimensional Accuracy

CMM, digital micrometers, and optical measurement system are used to check all the critical features with precision at the micron level.

GD&T & Tolerance Verification

Components pass ISO 2768-mK and ASME Y14.5 standards, providing batches with accurate form, position and profile.

Surface & Finish Testing

Surface roughness (Ra 3.2-0.8 mm) and coating thickness are checked to ensure the performance and the appearance.

Traceability & Reporting

Every order consists of material certificates (MTRs), FAI reports, and CMM data sheets to ensure full transparency of the processes.

Materials for Precision Grinding

Engineers and leading manufacturers trust Yicen Precision for fast iterations and durable, high-performance parts. Whether for prototyping or full-scale production, our extensive material selection ensures precision, strength, and reliability for any CNC machining project.

Steel
Cast Iron
Tool Steel

Aluminum
Brass
Copper

Carbide
Ceramics

Austenitic Stainless Steel
Martensitic Stainless Steel

Inconel
Hastelloy
Monel

PEEK
PTFE
UHMW
Nylon

Precision Grinding Equipment

What is Precision Grinding?

Precision grinding is a high-accuracy machining technique used to achieve extremely tight tolerances and smooth finishes on metal components. Our precision grinding services are designed for critical parts that demand precise dimensions, superior finishes, and consistent quality such as shafts, bearing surfaces, and tooling components. Whether handling small or large-volume projects, we use advanced equipment to ensure reliable, repeatable results for every part.

Industries We Serve

Yicen Precision is serving a broad spectrum of industries, covering aerospace, automotive, electronics, medical, and more. We specialize in providing high-quality, reliable parts tailored to meet the unique engineering challenges of each industry.

Our Streamlined Ordering Process

Upload Your Design

Easily upload your CAD files through our secure online platform to get started.

Customize Your Requirements

Choose your material, finish, tolerances, and preferred lead time to match your project needs.

Get an Instant Quote

Receive a real-time quote based on your design and selected specifications, no delays.

Production & Delivery

Your parts are manufactured by trusted partners, quality-checked, and delivered to your door on time.

Yicen Machining Solutions

Whether you’re creating a small batch of custom parts or scaling up for high-volume production, Yicen machining services offer the flexibility you need.
CNC Machining Services
Rapid Prototyping

CNC rapid prototype machining is perfect for creating engineering or production prototypes that closely resemble the final product in both appearance and functionality. At Yicen, we offer instant quotes and fast delivery, providing you with precise, high-quality CNC machined prototypes for your needs.

CNC Machining Services
Low Volume Manufacturing

Low volume CNC machining often acts as a bridge between prototyping and mass production for new and emerging production. With Yicen, this process becomes easier, more efficient, and cost-effective, allowing you to scale production quickly while maintaining high-quality standards.

CNC Machining Services
End-use Production

CNC production machining is the best solution for producing a thousand parts or more efficiently. Leveraging a diverse selection of materials and automation and multi-axis capabilities, Yicen delivers high-volume production with tight tolerances, superior dimensional accuracy, high reliability and fast turnaround times.

Applications of CNC Machining

Whether you’re creating a small batch of custom parts or scaling up for high-volume production, Yicen machining services offer the flexibility you need.CNC machining involves the manufacture of high precision, functional parts in a wide variety of industries. The most prevalent types of applications customers search and anticipate are given below.

Housings & Enclosures

Electronics, robotics, sensor, industrial assemblies, and other electronics enclosures that demand strict dimensional control.

Mounting Components

Rigid brackets, supports, linkages and mounting frames applied in automotive, aerospace, and automation systems.

Shafts and Rotational Parts

Rigid brackets, supports, linkages and mounting frames applied in automotive, aerospace, and automation systems.

Thermal Components

Aluminum or copper heat management parts in fine geometries of fin and optimized surface areas.

Gears and Motion Mechanisms

Elements of the drive that have a high degree of alignment and smoothness of operation and engagement.

Mechanical Parts Prototypes.

Engineering validation and testing Prototypes that replicate the performance of production level.

Tooling Components

Locator blocks, base plates, inserts, soft jaws and production tooling used in machining and assembling environment.

Aerospace and Medical Components.

Components must contain rigid GD&T, material traceability, and high reliability performance.

Precision Grinding for Exacting Tolerances and Superior Finishes

We provide precision grinding services for components requiring precise dimensions and exceptional surface quality. Using state-of-the-art grinding machines, we achieve micron-level tolerances on various metals. This service is perfect for creating molds, dies, and components used in industries such as aerospace, healthcare, and manufacturing. Every grind ensures consistency, repeatability, and flawless surface finishes.

Precision Grinding Setup

What is the Process of Precision Grinding?

The precision grinding process involves the use of an abrasive wheel to remove small amounts of material from a workpiece to achieve extremely tight tolerances and smooth finishes. Here’s an overview of the key steps involved:

Material Preparation
The choice of workpiece material depends on its intended use and required characteristics. Typical materials used include stainless steel, aluminum, and tool steel. Once selected, the material is securely placed on the machine for the grinding process.

Grinding Wheel Selection

A suitable grinding wheel is chosen based on the material of the workpiece and the finish required. As the grinding wheel spins, the abrasive particles slowly wear away material from the workpiece surface.

Machine Setup

The workpiece is carefully positioned on the grinding machine, and the grinding wheel is aligned to the desired grinding angle and speed. CNC machines are commonly employed to guarantee accuracy and consistent results in every operation.

Grinding Process

The grinding wheel makes contact with the workpiece, rotating at high speeds to gradually remove small amounts of material. This process smooths and shapes the surface, repeating until the required dimensions and finish are met.

Cooling

Friction between the grinding wheel and the workpiece can cause heat buildup during the grinding process. Coolant or lubrication is applied to reduce heat and prevent damage to the part.

Final Touches

Depending on the application, the workpiece may undergo additional steps like polishing, deburring, or coating to enhance surface quality and performance.

What Are The Perks of Using Precision Grinding?

Precision grinding provides exceptional accuracy, smooth finishes, and reliable results, making it ideal for producing high-quality components across a variety of industries.

Achieving Tight Tolerances

Precision grinding allows manufacturers to achieve extremely tight tolerances, often within ±0.01 mm or better, which is essential for parts that require exact measurements and high functionality. This level of precision is crucial in industries like aerospace, medical devices, and automotive components.

Superior Surface Finish

Precision grinding produces an exceptionally smooth surface, often required for parts that need both aesthetic appeal and functional performance. This surface quality reduces friction, improving the longevity and reliability of components.

High Efficiency for Complex Shapes

Traditional machining methods may struggle with intricate or detailed shapes, precision grinding excels in producing complex geometries with high accuracy. This efficiency is beneficial for intricate designs or tight spaces within components.

Consistency and Repeatability

Precision grinding ensures that each part produced is consistent and identical, even in high-volume production. CNC-controlled grinding machines allow manufacturers to consistently produce high-quality results across large production runs

Versatility in Applications

Whether for prototype development or full-scale production, precision grinding is used across industries such as aerospace, automotive, medical devices, and tooling, making it a versatile and reliable process for various applications.

Insights & Articles

Explore Machining services blog for expert insights on CNC machining, industry trends, manufacturing tips, and technology updates—designed to keep you informed, inspired, and ahead in precision engineering.

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Transform Concepts into Precision Parts

We specialize in converting your ideas into high-quality, functional components with unparalleled speed and accuracy. With advanced technology and expert craftsmanship, we create parts that meet the most complex specifications.

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Get In Touch With Us!
Prompt response guaranteed within 12 hours
🔐 All uploads are secure and confidential