CNC Machined Precision Parts Anodized Aluminum

Your Leading CNC Machined Precision Parts Anodized Aluminum Supplier

S PIERSON MACHINERY SDN.BHD. is a professional manufacturer specializing in the CNC machining of high-precision small parts. We supply precision components made from metal and engineering plastics, widely used in motors, medical equipment, food machinery, textile machinery, and light industrial applications, serving long-term customers in Europe, America, and Southeast Asia.

 

 
 
Why Choose Us

Wide Range of Machinable Materials

Our capabilities include stainless steel, alloy steel, aluminum alloy, copper, and engineering plastics, allowing buyers to source multiple materials from one supplier.

 

Advanced Manufacturing Equipment

We operate over 40 sets of processing equipment, including four-axis machining centers, centering machines, and turning-milling composite machines to meet diverse order requirements.

Reliable Quality and Delivery

Our product qualification rate and on-time delivery rate reach 98%, helping buyers reduce supply risk and maintain stable production schedules.

International Market Coverage

Our business network in Southeast Asia, Europe, and the Americas enables us to efficiently serve customers across multiple regions.

 

Specifications of CNC Machined Precision Parts Anodized Aluminum

Base Materials

Aluminum 6061 / 5052 / 7075

Material Hardness

70–150 HB

Tensile Strength

200–560 MPa

Density

~2.70 g/cm³

Machinability Rating

80–95%

Cutting Speed (Milling)

300–1200 m/min

Cutting Speed (Turning)

600–1500 m/min

Feed Rate (Rough)

500–3500 mm/min

Feed Rate (Finish)

800–1800 mm/min

Depth of Cut (Rough)

0.5–3 mm

Depth of Cut (Finish)

0.1–0.5 mm

Tolerance Capability

±0.01–±0.05 mm

Surface Finish Before Anodizing (Ra)

0.8–3.2 μm

Anodizing Type

Clear / Black / Colored

Anodized Layer Thickness

5–25 μm

Hardness After Anodizing

350–700 HV

Corrosion Resistance

Significantly Improved

Color Stability

Excellent

Common Processes

CNC Milling / Turning / Drilling / Tapping

Secondary Operations

Deburring / Polishing / Inspection

 

need something done?
Material Composition Customizable
Size Customizable
Tolerances Customizable
Packaging Customizable
MOQ Customizable

 

CNC Machined Precision Parts Anodized Aluminum
Advantages of CNC Machined Precision Parts Anodized Aluminum

Advanced Corrosion Resistance
When precision machined aluminum parts are anodized, the oxide layer forms a lasting barrier to protect parts from corrosion. This makes anodized parts suitable for use in outdoor environments, critical applications, and in areas where they may be exposed to chemicals.

Improved Surface Hardness and Wear Resistance
The oxide layer produced by the anodizing process creates a durable, high-quality surface finish that's harder than untreated aluminum, making it more resistant to wear, abrasion, and minor impacts. Additionally, as the oxide layer is chemically bonded to the aluminum, it won't chip or peel.

Better Adhesion for Paints and Coatings
The oxide layer created in anodizing is porous, and that texture provides an excellent base for primers, paints, and adhesives, which bond far better to porous surfaces than smooth ones.

Reduced Electrical Conductivity
Though bare aluminum is an excellent electrical conductor, when aluminum is anodized, the oxide layer acts as a dielectric insulator, preventing conductivity. This allows aluminum parts to be used in applications where electrical isolation is needed to prevent short circuits or interference with sensitive components.

Environmental and Chemical Resistance
In addition to protection from corrosion, because the anodized layer is chemically stable and non-reactive, it helps prevent degradation caused by exposure to UV rays, as well as many solvents, chemicals, and industrial cleaners.

Lightweight Protection
While coatings and plating can also protect parts from harsh environmental conditions, they typically add more weight and thickness than anodizing. Not only does this make a part heavier, but it can also bring it out of tolerance.

Aesthetic Enhancement and Color Options
Beyond its protective properties, anodized finishes are also an excellent way to enhance a part's aesthetics. Anodizing parts creates a uniform, attractive finish, and with the Type II anodizing process, parts can be dyed in a variety of colors while retaining a metallic appearance.

 

 
Ordering Process
 
01/

Define Requirements
Provide detailed specifications including part drawings, materials, tolerances, quantity, and delivery schedule.

02/

Quotation & Proposal
Receive a clear, competitive quotation based on your requirements and optional suggestions for optimization.

03/

Sign Contract
Confirm order terms, lead time, and quality standards through a formal contract to ensure both parties' commitments.

04/

Sample Approval (Optional)
Evaluate prototype or sample parts to verify dimensions, materials, and surface finish before full production.

05/

Production
CNC machining is carried out with strict quality control at every stage to ensure precision and consistency.

06/

Quality Inspection
Final inspection of all parts using advanced measurement tools to ensure compliance with specifications.

07/

Packaging & Logistics
Parts are securely packaged for shipment, and delivery schedules are coordinated according to agreed terms.

08/

Delivery & After-Sales Support
Goods are delivered on time, and technical or service support is provided as needed to ensure smooth use.

 

CNC Machined Precision Parts Anodized Aluminum - THE ANODOZING PROCESS
 

Pre-Treatment: Cleaning is done in a non-etching, alkaline detergent heated to approximately 145 degrees Fahrenheit. This process removes accumulated contaminants and light oils.

 

Rinsing: Multiple rinses, some using strictly de-ionized water, follow each process step.

 

Etching (Chemical Milling): Etching in caustic soda (sodium hydroxide) prepares the aluminum for anodizing by chemically removing a thin layer of aluminum. This alkaline bath gives the aluminum surface a matte appearance.

 

Desmutting: Rinsing in an acidic solution removes unwanted surface alloy constituent particles not removed by the etching process.

 

Anodizing: Aluminum is immersed in a tank containing an electrolyte having a 15% sulfuric acid concentration. Electric current is passed through the electrolyte and the aluminum is made the anode in this electrolytic cell; the tank is the cathode. Voltage applied across the anode and cathode causes negatively charged anions to migrate to the anode where the oxygen in the anions combines with the aluminum to form aluminum oxide (Al2O3).

 

Coloring: Anodic films are well suited to a variety of coloring methods including absorptive dyeing, both organic and inorganic dyestuffs, and electrolytic coloring.

 

Sealing: In all the anodizing process, the proper sealing of the porous oxide coating is absolutely essential to the satisfactory performance of the coating. The pores must be rendered nonabsorbent to provide maximum resistance to corrosion and stains. This is accomplished through a hydrothermal treatment in proprietary chemical baths or by capping the pores via the precipitation of metal salts in the pore openings.

 

CNC Machined Precision Parts Anodized Aluminum: Coloring Methods
 

Electrolytic Coloring

Electrolytic coloring has been employed to achieve vibrant colors for anodized aluminum parts. Following the anodization process, the aluminum is immersed in a solution containing metallic salts to initiate coloring. Current is supplied to the anodized aluminum with pores, causing the metallic salts to fill the base of the pores on the coating.
The resulting coloration and tone are determined by the specific metallic salts used. For instance, copper salts yield a reddish color. This method is often employed due to its resistance to ultraviolet rays and its long-lasting effects.

Dip Coloring

Dip coloring offers a diverse range of colors. The freshly anodized aluminum part is initially immersed in a liquid solution containing inorganic or organic dyes. After the porous layer absorbs the dye, the surface is rinsed in water to prevent further reaction. While providing more color options, the dip coloring method is not UV-resistant. The eventual result may fade quickly over time.

 

Packing of CNC Machined Precision Parts Anodized Aluminum

 

Packaging details:
Customized wooden case can protect products from bumps during transportation.

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Shipping & Payment

Shipping

By logistics; by automobile; by train; by shipping; by air.

Payment

L/C; T/T; Paypal; West Union; MoneyGram etc;

 

 

FAQ

 

Q: How does anodizing affect surface finish of CNC machined precision parts anodized aluminum?

A: Anodizing enhances surface hardness and allows colored finishes while preserving the precise surface quality achieved in machining.

Q: Can CNC machined precision parts anodized aluminum withstand wear better?

A: Yes, the anodized layer on CNC machined precision parts anodized aluminum increases surface hardness, improving wear resistance in assembly environments.

Q: Is color customization possible for CNC machined precision parts anodized aluminum?

A: Yes, CNC machined precision parts anodized aluminum can be dyed into a range of colors while maintaining tight tolerances and surface quality.

Q: What industries benefit from CNC machined precision parts anodized aluminum?

A: Aerospace, automotive, electronics, and equipment manufacturing use CNC machined precision parts anodized aluminum for durable, lightweight components.

Q: How consistent are dimensions after CNC machined precision parts anodized aluminum processing?

A: CNC machined precision parts anodized aluminum maintain high dimensional consistency, with tight tolerances supported even after anodizing.

Q: Does anodizing affect mechanical properties of CNC machined precision parts anodized aluminum?

A: Anodizing increases surface hardness and corrosion resistance of CNC machined precision parts anodized aluminum without altering core mechanical strength.

Q: What surface finishes are typical for CNC machined precision parts anodized aluminum?

A: CNC machined precision parts anodized aluminum typically achieve smooth finishes before anodizing, often improved by polishing and precision grinding.

We're well-known as one of the leading CNC machined precision parts anodized aluminum manufacturers and suppliers. If you're going to wholesale cheap CNC machined precision parts anodized aluminum made in Malaysia, welcome to get free sample from our factory.

cnc machined precision parts anodized aluminum