Aluminum Profile CNC Precision Machining

Aluminum profile CNC machining is automated precision machining of aluminum profiles through computer numerical control (CNC) equipment. Compared with traditional machining, CNC machining offers high accuracy, good consistency, and high efficiency, and is especially suitable for machining complex-shaped, mass-produced aluminum parts.

Shanghai Chuangsi Aluminum Co., Ltd. is located in Qingpu, Shanghai. We own a physical factory equipped with a full set of machining equipment including five-axis/three-axis CNC machining centers, CNC lathes, gantry milling machines, automatic precision cutting saws, and automatic tapping machines. From profile extrusion (partner production lines) to CNC deep processing and surface finishing, we provide full-process one-stop delivery (extrusion is on partner production lines), so customers only deal with one supplier. Whether prototype trial production, small-batch sampling, or volume orders, we can take them on, with samples delivered in as fast as 3 days.

Core machining capabilities:

1. CNC milling: Equipped with five-axis/three-axis CNC machining centers, capable of face milling, curved-surface milling, slot milling, and profile milling for complex machining of precision structural parts, irregular-shaped parts, cavities, and other complex aluminum components.

2. CNC turn-mill compound machining: CNC lathes work in conjunction with milling centers to complete turning, milling, drilling, tapping, and multiple other processes in a single setup, reducing secondary setup errors and improving machining accuracy and efficiency.

3. Precision drilling and tapping: Including all types of hole machining such as through holes, countersunk holes, blind holes, and mounting holes, as well as end-face tapping and drill-through tapping, with hole position accuracy ±0.02mm and tapping accuracy grade 6H.

4. Precision cutting: Automatic precision cutting saw cutting accuracy ±0.1mm, with flat, burr-free end faces. Standard profile length is 6.02m, and it can be cut to any length required by the drawings.

5. End-face milling: Before assembly of frame-type products, the profile end faces are milled flat, with end-face perpendicularity ≤0.05mm, to ensure frame assembly accuracy.

Machining capability parameters:

Item	Parameter / Description
Equipment type	Five-axis/three-axis CNC machining centers, CNC lathes, gantry milling machines, automatic precision cutting saws, automatic tapping machines
Machining accuracy	±0.01mm to ±0.05mm
Repeat positioning accuracy	±0.005mm
Maximum machining length	6500mm
Maximum machining width	550mm
Maximum machining height	500mm
Surface roughness	Ra≤0.8μm (high precision can reach Ra≤0.4μm)
Available materials	6061-T6, 6063-T5, 6005-T6, 6082-T6, 7075-T5
Machining method	Custom to drawings, custom to samples
Surface treatment	Anodizing, hard anodizing, sandblasting, brushing, powder coating, conductive oxidation
Executive standard	GB/T 6892-2023 high-precision grade
MOQ	50kg
Sample lead time	3-7 days (depending on complexity)
Batch lead time	7-15 days after sample approval
Production location	Qingpu, Shanghai

Selection reference:

Application scenario	Recommended material	Key machining requirements
Automation equipment frames	6063-T5	End-face milling, drilling and tapping, assembly accuracy
AI server heat sinks	6061-T6 / 1070	High-precision milling, flatness ≤0.02mm
Semiconductor equipment cavities	6061-T6	High-precision cavity milling, ±0.01mm tolerance
Robot bases / connectors	6061-T6 / 7075-T5	High-rigidity, high-precision milling and drilling
5G communication equipment housings	6063-T5	Thin-wall milling, multi-cavity machining
Medical equipment structural parts	6061-T6 / 6063-T5	High precision, high surface finish requirements
New energy battery trays	6061-T6	Large-size milling, batch machining consistency

Typical application scenarios:

• Automation equipment frames and accessories

• Non-standard equipment structural parts

• Robot bases and connectors

• AI server heat sinks and panels

• Semiconductor equipment cavities and precision worktables

• 5G communication equipment housings

• Precision structural parts for medical equipment

• New energy equipment battery trays and heat dissipation modules

FAQ (Frequently Asked Questions)

Q1: What processes are generally included in aluminum profile CNC machining?

A: Aluminum profile CNC machining mainly includes cutting, drilling (through/countersunk/blind/mounting holes), tapping (end-face/drill-through tapping), milling (face/curved surface/groove/profile), end-face milling, and other processes. The specific processes performed are determined according to customer drawing requirements.

Q2: What materials of aluminum profiles can you machine?

A: We can machine various aluminum alloy materials such as 6061-T6, 6063-T5, 6005-T6, 6082-T6, and 7075-T5. Different materials suit different scenarios: 6063-T5 has good formability and is suitable for general industrial structural parts; 6061-T6 has high strength and is suitable for load-bearing structural parts; 7075-T5 has the highest strength and is suitable for heavy-load or extreme working conditions.

Q3: What machining accuracy can be achieved?

A: Conventional machining accuracy is ±0.03mm to ±0.05mm, and high-precision requirements can reach ±0.01mm. Repeat positioning accuracy is ±0.005mm. The specific accuracy needs to be comprehensively evaluated based on workpiece size, structure, and machining processes.

Q4: What is the longest aluminum profile that can be machined?

A: Maximum machining length is 6500mm, maximum machining width 550mm, and maximum machining height 500mm. Precision control of extra-long profiles is one of our technical strengths.

Q5: What is the MOQ? Do you take small batches?

A: The MOQ is 50kg, and we support small-batch sampling and trial production. We can take on R&D sampling and small-to-medium batch orders, with samples delivered in as fast as 3 days.

Q6: Do you provide surface treatment services?

A: Yes. We provide supported surface treatments including anodizing (silver, black, and other colors available), hard anodizing, sandblasting, brushing, powder coating, and conductive oxidation. Everything is completed in one stop from CNC machining to surface finishing, so customers do not need to commission it separately.