This aluminium anodizing case study covers a batch of 117 precision-machined aluminium components, completed by Skye Metal Coating in Dubai within 2 days, requiring a consistent red anodized finish across complex geometries, internal profiles and detailed CNC-machined features. The project demonstrates the process control required when anodizing precision components with complex geometries. For more information about our capabilities, see our aluminium anodizing services in Dubai.
Unlike simple aluminium profiles or flat components, precision-machined parts require careful process control during anodizing. Differences in geometry, surface condition and electrical contact can affect the appearance of the finished component.
For this project, our objective was to produce a uniform red anodized finish while retaining the definition of the original machined surfaces.
Project Overview
Process: Type II, Class 2 aluminium anodizing
Finish: Red anodized
Average anodic coating thickness: 15 µm
Material: Machined aluminium components (Grade: 6063)
Component type: Precision CNC-machined parts and housings
Batch size: 117 components
Turnaround time: 2 days
Location: Dubai, UAE
Application: Industrial / engineered components
Service provider: Skye Metal Coating LLC
A production batch of machined aluminium components after red anodizing.
The Challenge
The components included detailed machined housings and smaller precision parts with a combination of:
- Internal and external surfaces
- Deep recesses
- Drilled and threaded holes
- Curved profiles
- Machined edges
- Different component sizes within the same production work
With coloured anodizing, achieving an attractive result is not simply a matter of applying colour to the surface.
The final appearance depends heavily on the aluminium substrate, surface preparation, anodizing conditions and dyeing process. For a batch containing complex machined geometries, process consistency becomes particularly important.
Preparing Aluminium Components for Anodizing
Before anodizing, the aluminium components were prepared to remove contaminants that could interfere with the formation of the anodic oxide layer.
Preparation is particularly important for CNC-machined components because machining oils, handling contamination and differences in the original surface finish can become visible after anodizing.
The parts were therefore processed through the appropriate cleaning and preparation stages before entering the anodizing line.
Aluminium Anodizing Process of Machined Aluminium Components
The prepared components underwent our controlled aluminium anodizing process.
During anodizing, the aluminium itself develops a controlled oxide layer. This distinguishes anodizing from coatings such as paint or powder coating, where a separate coating material is deposited onto the component.
The anodic layer also provides a porous structure that allows suitable dyes to be incorporated before the surface is sealed.
For this project, the components were processed to achieve the required red anodized appearance.
Part positioning and electrical contact were considered carefully because the project contained components with complex geometries rather than simple flat aluminium sections.
Complex CNC-machined geometry finished with decorative red anodizing.
Achieving the Red Anodized Finish
After formation of the anodic layer, the components underwent the colouring stage to develop the required red finish.
The photographs from the completed production batch show the colour across several different geometries — including larger housings, smaller cylindrical components and machined plates.
Maintaining visual consistency across different parts was an important aspect of the project.
The finished components retained the characteristic metallic appearance of anodized aluminium, allowing the underlying machined surfaces and CNC details to remain visible.
Close-up showing the metallic appearance and colour of the finished anodized aluminium.
Inspection and Quality Control
After anodizing, colouring and sealing, the components were visually inspected for overall finish quality and colour consistency.
Particular attention was given to:
- Colour uniformity
- Surface appearance
- Coverage across complex geometry
- Visible defects
- Machined details
- Handling marks
- Overall consistency between components
The completed parts achieved the required decorative red anodized appearance while maintaining the precision-machined character of the aluminium.
Multiple machined aluminium components showing the finished red anodized appearance.
Project Result
The complete batch of 117 components was processed and delivered within a 2-day turnaround, with consistent red colour and anodized finish quality maintained across components with varying geometries and CNC-machined features.
This makes anodizing particularly suitable for applications where both engineering performance and appearance are important.
Red anodized components with different geometries completed as part of the production work.
Other Anodizing Colours and Component Types
In addition to red anodizing, Skye Metal Coating processes aluminium components in a range of anodized finishes depending on the alloy, application and customer specification.
Our recent work includes:
- Black anodized precision components
- Gold anodized machined aluminium
- Green anodized CNC components
- Decorative coloured anodizing
- Industrial aluminium components
- Machined housings and assemblies
- Aluminium profiles and fabricated components
Colour availability and final appearance can depend on the aluminium alloy, surface condition and required anodizing specification.
Aluminium Anodizing Services in Dubai
Skye Metal Coating LLC provides aluminium anodizing services in Dubai for manufacturers, machining companies, fabricators and industrial customers requiring both functional and decorative finishes.
We process individual components as well as production batches and can work with simple aluminium parts through to complex CNC-machined components.
Our anodizing capabilities include decorative anodizing, coloured anodizing and anodizing for industrial aluminium components.
Need Anodizing for Machined Aluminium Parts?
If you manufacture or source aluminium components and require anodizing in Dubai, Skye Metal Coating can review the component material, dimensions, required finish, colour and quantity before processing.
For projects where colour matching or appearance is particularly important, supplying a sample or reference requirement can help establish the expected finish before production. Learn more about our anodizing capabilities for aluminium components, including decorative, coloured and industrial anodizing.