Custom CNC Machined Aluminum Block with One-piece Integral Milling, ±0.01mm

Many ordinary custom aluminum parts face common problems such as poor flatness, assembly gaps, surface burrs, oxidation discoloration and structural deformation after long-term operation, which affect the stability of automated production equipment.

Our CNC machined aluminum block adopts one-piece integral milling technology without welding, splicing or secondary assembly. This processing method eliminates internal stress and effectively avoids deformation and flatness deviation during long-term equipment operation.

All positioning holes, threaded holes, stepped grooves and internal cavities are completed in one clamping process to ensure consistent precision and perfect assembly matching. Every aluminum block is fully deburred and manually cleaned to remove machining dust, tool marks and sharp edges, reaching clean industrial assembly standards.

Made of high-purity industrial aluminum alloy, this product features lightweight structure, excellent thermal conductivity and strong oxidation resistance. It is widely used as fixture base, positioning bracket and fixed support component for precision automation machinery. We support full customization of size, hole position, thread standard and surface finish according to customer 2D/3D drawings.

Available Materials

Aluminum Material

2024, 5052, 5083, 6061, 6061-T6, 6063, 6082, 7075, etc.

Tolerance: +/-0.01~0.005mm

Surface treatment: oxidation, electrophoresis, sandblasting, electroplating, chemical treatment, painting, hard anodizing, heat treatment, etc.

Stainless Steel/Steel Material

SUS303, SUS304, SS316, SS316L, 420, 430, 17-4PH, 1214L/1215/4140/SCM440/40CrMo, etc.

Tolerance: +/-0.01~0.005mm

Surface treatment: electroplating, galvanizing, spraying, oxidation, polishing, spray grinding, passivation, heat treatment, pickling, shot peening, etc.

Brass/Copper/Bronze Material

HPb63, HPb62, HPb61, HPb59, H59, H62, H63, H65, H68, H70, H80, H90, C110, C120, C220, C260, C280, C360 etc.

Tolerance: +/-0.01~0.005mm

Surface treatment: electroplating, tin plating, spraying, oxidation, polishing, spray grinding, heat treatment, pickling, shot peening, etc.

Plastic Material

Acetal/POM/PA/Nylon/PC/PMMA/PP/PVC/PU/HDPE/PVDF/Acrylic/ABS/PTFE/PEEK etc.

Tolerance: +/-0.01-0.005mm

Surface treatment: spraying, sandblasting, painting, pickling, alkali cleaning, anodizing, ion implantation, thermal transfer printing, engraving, etc.

Surface Treatment Options

Anodizing (various colors), hard anodizing, electrolytic polishing, chrome/nickel/zinc plating, PVD vacuum coating, wire drawing, sandblasting, laser engraving, screen printing, polishing, powder coating

• One-piece solid milling structure, no splicing gap, long-term use without deformation
• Ultra-tight tolerance control within ±0.01mm~±0.03mm, no on-site modification needed
• Double manual deburring and dust removal, smooth and burr-free assembly surface
• Excellent heat dissipation performance to reduce thermal deformation during continuous machine operation
• Multiple customizable surface treatments for anti-corrosion and wear-resistant requirements
• Flexible production for prototype trial and mass bulk orders, shorten customer R&D cycle

We implement strict full-process quality control for all custom CNC aluminum parts to guarantee stable precision and reliable quality:

1. Raw material inspection for aluminum purity and hardness to avoid recycled inferior materials
2. Fixed CNC processing parameters to ensure consistent precision from sample to bulk production
3. 100% manual deburring and surface dust cleaning for assembly-grade clean finish
4. Double inspection of key dimensions, flatness and hole position before shipment
5. Anti-scratch and shockproof export packaging to avoid damage during international logistics

Packing & Shipping

All CNC‑machined aluminum components are carefully packed to prevent scratches, dents and corrosion during transit.
Each machined part is individually wrapped with anti‑static plastic film, then placed into custom foam inserts to fix the position and avoid friction collision. Products are loaded into sturdy carton boxes, with extra bubble filling for gaps. For bulk orders, goods will be packed on standard export pallets for safe ocean or air freight.

We support multiple shipment options: DHL, FedEx, UPS for express small‑batch orders; sea freight and air freight for mass production. Shipping method can be selected according to your order volume and delivery schedule. All packages come with packing list for customs clearance.

Lead‑time depends on drawing confirmation, material availability and order quantity. We will advise estimated delivery date before order confirmation.

• Aerospace
• Medical Equipment
• Automation & Robotics
• Automotive
• Semiconductor & Electronics Parts
• Hydraulic & Pneumatic Components
• Optical Instrument
• New Energy Equipment