Surface Finishing Services for Precision CNC Parts

ISO 9001 & IATF 16949 Certified
Prototype: 1~9 Days | Bulk Leadtime: 7~30 Days
±0.005mm Precision
100+ Metals & Plastics Available

Full-Service CNC Part Surface Finishing & Post-processing

In-house one-stop post-treatment for all CNC machined parts, from deburr/polish to anodize/powder coat/plating. Optimize appearance, anti-corrosion & wear resistance per your drawing requirement.

Finishing Services Capabilities

Surface smoothing: Removes tool marks, burrs, and sharp edges to achieve a uniform, clean surface finish.
Deburring: Applies mechanical or thermal deburring processes for precision parts with complex geometries.
Polishing and buffing: Delivers high-gloss or satin finishes on metals and plastics, enhancing both aesthetics and corrosion resistance.
Abrasive blasting: Uses media such as glass beads, aluminum oxide, or sand to create matte, textured, or pre-paint surface profiles.
Tumbling and mass finishing: Suitable for high-volume parts, providing consistent edge rounding and surface refinement.
Coating and plating compatibility: Prepares surfaces for anodizing, powder coating, painting, or electroplating to ensure adhesion and durability.
Dimensional inspection: Verifies that finished parts meet tolerance requirements after all post-machining processes.
Material versatility: Supports finishing for aluminum, steel, copper, titanium, plastics, and composites.

Finishing Materials

Stainless, Super Alloys
Non-Ferrous – Aluminum
Red Metals – Brass, Bronze
Precious Metals – Gold, Silver, Platinum, Palladium
Refractory Metals – Tungsten, Niobium
Plastics – Acetel, Delrin, Ultem, PEEK, UHMW-PE
Laminants – Epoxy-based fiberglass grades G7,G10, G11; Cloth based (Micarta)
Other – Wood, Tapes

CNC Machining Finishing and Post Processing Options

As machined (standard)

Raw CNC finish with visible tool marks, low-cost option

Bead Blasting

Matte/satin finish via glass bead blast, remove burr & scratch

Polishing

Mirror/Satin polish to Ra0.02~Ra1.6μm glossy surface

Heat Treating

Quench & temper to improve workpiece hardness

Anodizing

Hard/Decorative anodize for aluminum, anti-rust & colorful option

Brushing

Linear wire brush grain finish for aluminum housing

Laser Marking

Custom logo or numbers on component surface

Passivating

Chemical passivation for stainless steel anti-corrosion

Powder Coating

Thick durable colored powder coat, strong scratch resistance

Plating

Nickel/Zinc/Chrome plating for metal anti-rust & decorative

Black Oxide

Low-cost blackening treatment for steel anti-corrosion

Knurling

Mechanical surface texturing process to form diamond/straight patterns on metal parts for anti-slip grip and tactile enhancement

The Case Studies Of Finishing Parts

You have a complex part design, our CNC tapping service can help you turn it into a reality. With the right equipment, strong technical knowledge, and a focus on quality. From tool design to finishing and then on to shipment, Hongwen ensures that every project is completed to a high standard and that your orders are delivered on time, every time.