Custom Powder Coating Services

YuanYi provides powder coating for metal parts in black, white, gray, red, blue and standard RAL colors, with matte, satin, gloss and textured finishes for CNC machined parts.

Powder Coating for CNC Machined Parts

YuanYi provides custom powder coating services for aluminum, carbon steel and stainless steel CNC parts. We support standard RAL colors, matte, satin, gloss and textured finishes, with masking available for threads, holes, mating surfaces and other critical areas.

Our service covers prototypes, small batches and repeat production, with machining, coating and inspection coordinated under one project.

01 RAL Colors

02 Custom Masking

03 Multiple Finishes

04 Prototype to Production

Powder Coating Options and Capabilities

Our powder coating services support multiple colors, surface preparation methods and inspection requirements for CNC machined and custom metal parts.

Feature	Specification
Color Range	Extensive range of powder coating colors, including standard RAL colors and custom color matching
Finish Options	Matte, satin, gloss and textured finishes
Compatible Materials	Aluminum, carbon steel, stainless steel and other suitable metals
Surface Preparation	Blasting, cleaning and pre-treatment as required for proper coating adhesion
Masking Options	Threads, holes, bores, mating surfaces and other critical areas can be masked as required
Coating Thickness	Controlled according to the selected powder, part geometry and project requirements
Lead Time	Typically 3–7 business days depending on part size, quantity and coating requirements
Quality Checks	Adhesion testing, coating thickness measurement, impact testing and corrosion-resistance checks as required

Powder Coating Colors and Finish Options

Choose from standard powder coating colors, including black,white, gray, red, blue and RAL powder coating colors.Matte, satin, gloss and textured finishes are available to match functional and cosmetic requirements.

Matte Black

A low-gloss finish with a clean industrial appearance for housings, brackets and functional components.

Satin Gray

A balanced sheen between matte and gloss for equipment housings, panels and industrial parts.

Gloss White

A smooth, reflective finish suitable for clean cosmetic surfaces and visible equipment components.

RAL Blue

Standard RAL color options help maintain consistent appearance across prototypes and repeat production.

RAL Red

Suitable for custom machinery, branded components and applications requiring a distinctive color finish.

Textured Black

A textured surface that provides an industrial look and helps reduce the visibility of minor surface marks.

Materials Suitable for Powder Coating

Our powder coating services are suitable for aluminum,steel, stainless steel and other conductive metal substrates, with surface preparation selected according to the material and coating requirements.

Aluminum Powder Coating

Common for CNC-machined housings, brackets, panels and lightweight components requiring color, surface protection or a uniform cosmetic finish.

Steel Powder Coating

Suitable for brackets, frames, machine components and structural parts where added surface protection and a durable finish are required.

Stainless Steel Powder Coating

Used when stainless steel parts require a specific color, texture or additional surface protection for industrial applications.

Metal materials suitable for powder coating

Other Suitable Metals

Other conductive metal substrates may also be powder coated depending on material condition, part geometry and surface preparation requirements.

How Our Powder Coating Process Works

powder coating process covers part review, surface preparation,masking, powder application, curing and final inspection to help maintain consistent coating quality and protect critical features.

Part Review

Review material, geometry, cosmetic surfaces, masking requirements and drawing notes before processing.

Cleaning & Degreasing

Remove oil, dust and machining residues from the part surface before further preparation.

Surface Preparation

Use blasting or suitable pre-treatment methods to improve surface condition and coating adhesion.

Masking & Plugging

Protect threads, holes, bores, mating surfaces and other areas that must remain uncoated.

Powder Application

Apply powder electrostatically to achieve even coverage across visible and functional surfaces.

Curing

Heat the coated parts under controlled conditions so the powder flows, bonds and forms a continuous finish.

Cooling & Unmasking

Allow parts to cool, remove masking materials and check protected features before final inspection.

Final Inspection & Packing

Check appearance, coverage, coating thickness and critical areas before parts are packed for shipment.

Design Considerations for Powder-Coated Parts

Powder coating adds a measurable layer to the part surface, so coating requirements should be considered before machining and finishing. Critical dimensions, threaded features and mating surfaces may require masking or additional allowance.

Design considerations for powder coated CNC parts

Coating Thickness and Fit

Powder coating thickness can affect tight fits, slots, bores and assembly interfaces. Critical dimensions should be identified before coating.

Threads and Holes

Threads, tapped holes and precision bores are commonly protected with powder coating masking to prevent buildup from affecting assembly.

Mating and Sealing Surfaces

Bearing seats, gasket faces, electrical contact areas and other functional surfaces may need to remain uncoated.

Hanging and Contact Points

Parts normally require hanging or fixturing during coating, so contact locations should be selected away from important cosmetic surfaces where possible.

Edges and Recessed Areas

Sharp edges, deep pockets and recessed features can affect coating coverage and should be reviewed where appearance is important.

Drawing Requirements

Color, finish, masking areas and cosmetic surfaces should be clearly identified on drawings or finishing specifications before production.

Powder Coating Applications

Our industrial powder coating services are used for CNC machined and fabricated metal parts that require a durable, consistent and decorative finish.

Automation Equipment

Brackets, panels, frames and machine housings used in automated production systems.

Robotics

Protective covers, mounting brackets and structural components requiring consistent appearance and surface protection.

Automotive

Brackets, enclosures, mounting parts and other custom metal components used in vehicle and equipment applications.

Industrial powder coating for machine components

Industrial Machinery

Machine covers, control housings, frames and structural components used in industrial environments.

Quality Checks for Powder-Coated Parts

Powder-coated parts are checked for appearance, coating coverage, thickness and critical functional areas before shipment. Inspection requirements can be coordinated according to your drawings and project needs.

Visual Inspection

Check color consistency, surface coverage and visible coating defects.

Coating Thickness

Coating thickness can be measured according to project requirements.

Masking & Critical Features

Threads, holes, bores and mating surfaces are checked after coating.

Dimensional Inspection

Critical dimensions are inspected where coating buildup may affect fit or assembly.

View Our Quality Assurance

Quality inspection of powder coated CNC parts

Need Custom Powder-Coated Parts?

Upload your drawings and tell us the material, color, finish, masking requirements and quantity.

Frequently Asked Questions

1. Can you match a specific RAL color or customer color?

Yes. Standard RAL colors are available, and custom color matching can be coordinated based on your project requirements. For repeat production, please provide the required color reference or specification when requesting a quote.

2. Will powder coating affect tight tolerances or assembly fit?

Yes, coating adds material to the part surface, so tight fits, bores, slots and mating features should be reviewed before coating. Critical dimensions can be identified on the drawing so masking or dimensional allowance can be planned where required.

3. Can threads, holes and mating surfaces remain uncoated?

Yes. Threads, tapped holes, bores, bearing seats, mating surfaces and other critical areas can be protected with powder coating masking or plugging according to drawing requirements.

4. How do you control coating quality and appearance?

Powder-coated parts can be checked for color consistency, coating coverage, visible defects, coating thickness and critical masked areas. Additional inspection requirements can be specified before production.

5. Do you support prototypes and small quantities?

Yes. YuanYi supports prototypes, small batches and repeat production for custom powder-coated CNC parts, so you do not need to start with a large production quantity.

6. How long does powder coating usually take?

Typical powder coating lead time is about 3–7 business days, depending on part size, quantity, color, masking requirements and finishing complexity.

7. Can you provide CNC machining and powder coating together?

Yes. CNC machining, inspection and powder coating can be coordinated within the same project, helping reduce supplier handoffs and simplify communication for custom parts.

8. What should I provide for a powder coating quote?

Please send your drawing or 3D model together with the material, quantity, required color, finish, masking areas and any cosmetic or inspection requirements. This helps us review both machining and coating requirements before quoting.