Polishing Services

Improve the surface quality of your parts with our precision polishing services. We deliver smooth finishes, reduced roughness, and enhanced appearance for both functional and aesthetic applications.

Service Overview

At CMS, we provide professional polishing services for both metal and plastic parts, ensuring smooth, reflective, and defect-free surfaces.
Our polishing techniques are designed to remove machining marks, burrs, and surface irregularities, creating a refined finish that enhances both aesthetic appeal and functional performance.

✅ Precision surface roughness up to Ra 0.1 μm
✅ Supports both manual and mechanical polishing
✅ Available for small or large batches
✅ Ideal for cosmetic and sealing applications

What Is Polishing?

Polishing is a surface finishing process that uses abrasives, compounds, and polishing tools to smooth a workpiece surface by removing small amounts of material.
This process reduces surface roughness and can produce a matte, semi-gloss, or mirror finish, depending on requirements.

Common polishing methods include:

  • Mechanical polishing: abrasive wheels and compounds

  • Electropolishing: electrochemical surface refinement

  • Buffing: soft wheel polishing for mirror effects

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Advantages of Polishing

Polishing Capabilities & Process

Our polishing workshop is equipped with automatic polishing machines, ultra-fine grinding tools, and experienced technicians capable of handling complex geometries.

Available finishes include:

  • Mirror Polishing (Ra ≤ 0.1μm)

  • Satin / Brushed Finish

  • High Gloss Finish

  • Optical Surface Finish

Materials for Anodizing

We polish a wide range of metals and plastics, including:

Metals: Aluminum, Stainless Steel, Brass, Copper, Steel, Titanium
Plastics: ABS, Acrylic, PC (Polycarbonate), POM, Nylon, PEEK

Each material requires different polishing tools and compounds — our engineers select the optimal method to ensure ideal results.

Applications

Our polishing services are widely used in:

  • Consumer electronics housings (mobile phones, laptops, cameras)

  • Automotive parts (trim, decorative, and engine components)

  • Medical equipment and instruments

  • Aerospace parts requiring ultra-smooth surfaces

  • Optical and lighting components

  • Robotics and industrial automation

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CMS ISO9001 certificate

Quality Assurance

Quality is our top priority. Every polished component undergoes:

  • Visual inspection for surface uniformity

  • Surface roughness testing (Ra measurement)

  • Dimensional verification with CMM if needed

  • Cleanroom packaging for optical or electronic components

We follow ISO9001, IATF16949, and ISO13485 standards to ensure consistency and repeatability for every order.

Case Studies

Frequently  Questions

If you have any questions in the process of product design and manufacturing, you can contact us to obtain expert support and provide the best solution for your product. Get support now !

Polishing is a mechanical finishing process that smooths the surface of a part using abrasives, producing a glossy, reflective, or finely smooth finish.

Polishing is suitable for aluminum, stainless steel, brass, copper, and some plastics like acrylic (PMMA) and PC.

Yes. Polishing reduces or eliminates tool marks and provides a much smoother, more uniform surface.

Yes. Polishing is ideal for components requiring a premium, shiny, or decorative appearance, such as consumer products, medical tools, and display components.

Slightly. Polishing removes a small amount of material (microns), but CMS takes this into account for critical dimensions.

Yes. Pre-polishing improves the smoothness and uniformity of surfaces before anodizing or electroplating, resulting in a cleaner final appearance.

Polished surfaces can reach Ra ≤ 0.2–0.4 μm, depending on material and polishing level.

Yes, but polishing complex shapes may require more labor. CMS supports both small batches and high-volume orders with standardized polishing processes.

Light scratches can be removed; deep dents may require additional machining or sanding before polishing.

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Get an Instant Polishing Quote Today

Whether you need mirror polishing for appearance or fine polishing for functionality, we have the expertise to deliver perfection.