YXT Surface Finishing

Surface Finishing Services for CNC Parts

One production route for CNC machining, preparation, masking, finishing, inspection, and delivery. YXT produces metal and plastic components with functional protection and consistent cosmetic results, with selected programs shipping in as fast as 7 days.

Competitive production pricing

Fast turnaround from 7 days

Machining tolerance to ±0.005 mm

Documented global delivery

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Send the drawing, material, quantity, finish specification, color reference, and protected areas for a practical review.

Finish Library

Surface Finishing Capabilities

Compare 14 production-ready finishes by material compatibility, appearance, performance, and typical use. Select a process to review its full specification panel.

As Machined Smooth Machining Polishing Bead Blasting Tumbled Anodizing II (Matte)Anodizing II (Glossy)Hardcoat Anodizing Powder Coated Black Oxide Chromate (Alodine)Plating DLC Coating PVD Coating

Finish 01

As Machined (Ra 3.2μm / Ra 126μin)

Parts leave the machine after deburring and cleaning, with fine directional tool paths still visible. With no coating or abrasive post-process, critical dimensions remain closest to the drawing and the production route stays fast.

Choose this condition for internal brackets, fixture components, and hidden structural parts where function matters more than cosmetics. A finer machined roughness can be assigned only to sealing, sliding, or mating faces when required.

As Machined example on a precision component

Materials

All CNC machinable metals and plastics

Appearance

Natural material color with visible tool paths

Key feature

Shortest route with maximum dimensional control

Applications

Internal brackets, fixtures, and structural parts

Finish 02

Smooth Machining (Ra 1.6μm / Ra 63μin)

Smooth machining uses controlled finishing passes, sharp tooling, and lower feed rates to reduce roughness while keeping the component entirely in a machined state. Surfaces look more uniform and feel noticeably cleaner than a standard finish.

It is a practical option for gasket seats, O-ring lands, precision fits, and fluid components. YXT can specify roughness by face so additional machining time is applied only where the assembly needs it.

Smooth Machining example on a precision component

Materials

All CNC machinable metals and plastics

Appearance

Uniform machined sheen with fine tool paths

Key feature

Controlled mating and sealing surfaces

Applications

Gasket faces, precision fits, and fluid components

Finish 03

Polishing (Ra 0.8μm or better)

Polishing progressively refines the surface with abrasives and buffing until machining lines and small scratches are greatly reduced. Depending on alloy and geometry, the result can range from a clean satin sheen to a mirror-like reflection.

Lower friction and easier cleaning make this finish useful for medical hardware, optical components, decorative trim, and premium consumer parts. Critical edges, threads, and dimensional features are protected during processing.

Polishing example on a precision component

Materials

Metals and selected engineering plastics

Appearance

Satin through mirror finish, geometry dependent

Key feature

Low friction and a high-end cosmetic surface

Applications

Medical hardware, reflectors, trim, and display parts

Finish 04

Bead Blasting

Bead blasting projects fine media at a controlled pressure to soften machining lines and create a consistent, non-directional satin texture. The matte surface reduces glare and gives separate machined faces a more unified appearance.

YXT selects media size and pressure around the alloy, wall thickness, and cosmetic standard. The process is widely used for enclosures, handles, interior automotive details, and other parts that need a clean tactile finish.

Bead Blasting example on a precision component

Materials

Aluminum, stainless steel, steel, and brass

Appearance

Uniform satin or matte texture

Key feature

Consistent anti-glare cosmetic surface

Applications

Enclosures, handles, panels, and visible hardware

Finish 05

Tumbled / Vibratory Finished

Tumbling places components in a vibratory bowl with selected media and compound. Continuous contact breaks sharp edges, removes light burrs, and blends machining marks into a soft, non-directional texture.

The batch process is efficient for large quantities of small, robust parts. It is commonly specified for fasteners, simple hardware, spacers, and internal components where safe edges and repeatable handling matter most.

Tumbled example on a precision component

Materials

Most metals and durable engineering plastics

Appearance

Soft, blended, non-directional surface

Key feature

Batch deburring and controlled edge breaking

Applications

Fasteners, spacers, small hardware, and volume parts

Finish 06

Bead Blasted + Type II Anodizing (Matte)

A controlled bead blast first diffuses reflections and reduces the visibility of tool paths. Type II anodizing then converts the aluminum surface into a corrosion-resistant oxide layer that can be dyed in a range of colors.

This combination produces the restrained matte appearance often used on electronics, robotics, and aerospace housings. Color samples, masking zones, and cosmetic acceptance areas can be agreed before production.

Anodizing II (Matte) example on a precision component

Materials

Aluminum alloys

Appearance

Clear, black, blue, red, gold, or matched colors

Key feature

Corrosion protection with a premium matte look

Applications

Electronics housings, robotics, and aerospace parts

Finish 07

Bright + Type II Anodizing (Glossy)

For a brighter finish, the aluminum is polished or chemically brightened before Type II anodizing. The transparent oxide layer retains more of the metal reflection while adding color stability and everyday corrosion resistance.

Glossy anodizing works well on decorative panels, premium controls, automotive trim, and consumer products. Alloy selection and surface preparation are reviewed carefully because they strongly influence the final brightness.

Anodizing II (Glossy) example on a precision component

Materials

Aluminum alloys suited to decorative anodizing

Appearance

Clear, black, or custom bright colors

Key feature

Reflective color with an integral oxide layer

Applications

Premium enclosures, controls, trim, and display parts

Finish 08

Type III Hardcoat Anodizing

Type III anodizing runs at lower bath temperatures and higher current density to form a thicker, denser oxide layer. The resulting ceramic-like surface improves abrasion resistance and electrical insulation under demanding service conditions.

Because coating thickness changes finished dimensions, YXT reviews allowances, threaded features, fits, and masking before release. Natural gray, bronze, and black are common outcomes depending on the alloy and specification.

Hardcoat Anodizing example on a precision component

Materials

Aluminum alloys

Appearance

Natural gray, bronze, black, or specification dependent

Key feature

High wear resistance and electrical insulation

Applications

Pistons, valves, gears, fixtures, and machine parts

Finish 09

Powder Coating

Powder coating applies an electrostatically charged dry powder and cures it in an oven to form a continuous protective film. The coating is thicker than wet paint and offers strong resistance to impact, moisture, chemicals, and outdoor exposure.

A broad range of RAL colors, gloss levels, and textures can be specified. YXT coordinates pre-treatment, grounding points, masking, and coating thickness for frames, equipment panels, enclosures, and architectural hardware.

Powder Coated example on a precision component

Materials

Aluminum, steel, stainless steel, and other metals

Appearance

RAL and custom colors in matte, gloss, or textured grades

Key feature

Durable color and environmental protection

Applications

Frames, equipment, outdoor hardware, and enclosures

Finish 10

Black Oxide

Black oxide is a chemical conversion treatment for ferrous materials that creates a dark magnetite surface with negligible dimensional build-up. It reduces reflection and preserves the geometry of close-tolerance features.

An oil, wax, or seal is commonly added to improve short-term corrosion resistance. The finish is suitable for tools, fasteners, gears, fixtures, and mechanical components where a restrained black appearance is required.

Black Oxide example on a precision component

Materials

Carbon steel, alloy steel, and selected stainless grades

Appearance

Deep black with oil, wax, or dry seal options

Key feature

Minimal dimensional change and low reflectivity

Applications

Tools, fasteners, gears, fixtures, and mechanisms

Finish 11

Chromate Conversion (Alodine / Chem Film)

Chromate conversion chemically passivates aluminum with a very thin protective layer. Unlike anodizing, the finish retains useful electrical conductivity while improving corrosion resistance and paint adhesion.

Clear and yellow-gold options are common for electronic chassis, heat sinks, aerospace brackets, and parts that need reliable grounding. YXT controls cleaning, contact areas, masking, and specification requirements through the finishing route.

Chromate (Alodine) example on a precision component

Materials

Aluminum alloys

Appearance

Clear or yellow-gold conversion film

Key feature

Conductive corrosion protection and paint preparation

Applications

Chassis, heat sinks, brackets, and grounded assemblies

Finish 12

Metal Plating (Nickel, Zinc, Gold, Tin, and Chrome)

Electrolytic and electroless plating deposit a controlled metal layer onto the substrate. The selected deposit can improve corrosion resistance, conductivity, solderability, hardness, wear life, or decorative appearance.

YXT reviews coating type, thickness, masking, rack locations, and post-treatment against the part function. Typical programs include zinc-protected hardware, nickel wear surfaces, gold electrical contacts, and decorative chrome components.

Plating example on a precision component

Materials

Metals and prepared non-metal substrates

Appearance

Nickel, zinc, gold, tin, chrome, and custom systems

Key feature

Functional performance combined with decorative options

Applications

Connectors, automotive hardware, contacts, and wear parts

Finish 13

DLC (Diamond-Like Carbon) Coating

DLC is a carbon-based vacuum coating engineered for very high hardness and a low coefficient of friction. Its thin dark gray to black layer helps sliding components resist wear without adding a heavy coating build-up.

Substrate preparation, hardness, edge condition, and operating load are reviewed before coating. DLC is frequently selected for engine parts, medical tooling, precision molds, valve components, and premium mechanisms.

DLC Coating example on a precision component

Materials

Steel, stainless steel, titanium, carbide, and compatible alloys

Appearance

Dark gray to black technical coating

Key feature

Low friction with exceptional surface hardness

Applications

Engine parts, medical tools, molds, and mechanisms

Finish 14

PVD (Physical Vapor Deposition) Coating

PVD vaporizes a solid coating material in a vacuum and condenses it onto the part as a thin, strongly bonded film. The process produces high hardness, good wear resistance, and metallic colors without the thick build of paint or powder.

Gold, rose gold, bronze, blue, black, and multi-color effects are available with the appropriate coating chemistry. YXT matches substrate, preparation, masking, and service temperature for tools, fixtures, medical instruments, and decorative parts.

PVD Coating example on a precision component

Materials

Stainless steel, titanium, tool steel, and compatible substrates

Appearance

Gold, bronze, rose, blue, black, or multi-color metallic tones

Key feature

Hard decorative color with a thin bonded film

Applications

Cutting tools, instruments, fixtures, trim, and watches

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Share your CAD files, quantities, material, finish callouts, color samples, and inspection requirements. YXT will review the complete manufacturing route and return practical feedback for quotation.

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