China Aluminum CNC Machined Parts Factory

XCM CNC is a China aluminum CNC machining factory serving overseas programs with build-to-print production, batch material control, surface treatment coordination, and repeat supply capability. Brother, Taichung, and Qiaofeng machining centers are matched to the part structure and production plan.

Aluminum is widely used for housings, panels, brackets, and heat dissipation structures because of its thermal conductivity, low weight, machinability, and anodizing compatibility. From sampling, deburring, and inspection records to export packaging, each stage is linked to order requirements so batch aluminum parts stay consistent in appearance, size, and documentation. XCM CNC is certified to ISO 9001, ISO 13485, IATF 16949, and GJB9001C, with MOQ from 1 piece.

Machining Parameters and Tolerances

• Materials: 6061-T6/T651, 7075-T6/T651, 5052-H32, 6063-T5, with temper and stress condition confirmed by drawing
• Tolerance: +/-0.003 mm (+/-0.00012 inch), IT5 or IT6 accuracy, +/-0.01 mm shaft and bore fits, with h6 and H7 available
• Surface Finish: Ra 3.2 um milled, Ra 1.6 um precision milled, Ra 0.8 um turned or bored, Ra 0.4 um ground, Ra 0.2 um polished
• GD&T: Flatness 0.02 mm, parallelism 0.03 mm/1030 mm, perpendicularity 0.02 mm/1000 mm, position 0.015 mm, concentricity 0.012 mm
• Max Size: Milling 3000 x 1600 x 1400 mm, turning diameter 1200 x 2500 mm
• Surface Treatment: Clear anodizing 8-15 um, hard anodizing 25-60 um, bead blasting 80#-220#, brushing, powder coating, with masking and allowance control available
• Thread: Internal M1.4-M220, external M2.0-M220, depth 4xD, NPT/BSP/G/PT, with go and no-go gauge inspection
• Batch Traceability: Material certificate, lot marking, SPC monitoring, full inspection on critical dimensions, and AQL sampling for non-critical dimensions

Large-Size Aluminum Structural Part Capability

XCM CNC three-axis milling reaches 3000 x 1600 x 1400 mm and can machine aluminum structural parts around 2600 mm long, depending on fixturing. Turning up to diameter 1200 mm and length 2500 mm covers large aluminum flanges and shafts. For large aluminum parts above 500 mm, tolerances around +/-0.05 mm should be reviewed with material condition and clamping strategy to control deformation risk.

Thread and Keyway Machining for Industrial Supply

Batch aluminum parts often include threads, keyways, and sealing grooves. Internal threads range from M1.4 to M220, thread depth can reach 4xD, and pipe threads support NPT, BSP, G, and PT standards. Keyways can start from 1.0 mm width, and O-ring grooves can start from 1.0 mm width with 0.01 mm depth tolerance. Thread inspection uses go and no-go gauges or ring gauges, while keyways are confirmed to the drawing standard and fit class.

Batch Inspection and Traceability for Factory Orders

Batch aluminum supply requires a traceable inspection system. Critical dimensions can be checked 100 percent, non-critical dimensions can follow AQL sampling, and SPC can monitor size trends during production. Material certificates, dimensional reports, and surface treatment reports can be supplied by batch, with lot marking and traceability numbers managed to the order requirement.

Multi-Part Fixturing for Batch Efficiency

Batch aluminum plates, brackets, and housings can improve efficiency through multi-part fixturing. One setup can cover parts up to 600 x 1200 x 500 mm in some multi-face jobs, reducing repeated clamping error and tool-setting time. Standardized hole diameters and fewer tool changes can shorten cycle time, but fixture stability and datum consistency should be verified during first article production.

Certified Quality Systems and Imported Equipment

XCM CNC is certified to ISO 9001, ISO 13485, IATF 16949, and GJB9001C, covering quality management requirements for medical, automotive, and military projects. Production uses DMG, Mazak, Matsuura, Brother, and other machining centers, supported by Hexagon CMM and 2.5D vision inspection equipment.

Machining Range from Micro Connectors to Large Structures

XCM CNC covers parts from miniature connectors and sensor housings to large structural components. Three-axis milling travel reaches 3000 x 1600 x 1400 mm, and turning capacity reaches diameter 1250 mm. That range supports parts from small precision connectors to mechanical assemblies longer than 2 meters.

Clear Flow from Quotation to Scheduling

After receiving drawings, we quote according to material, quantity, surface treatment, and lead time, then move the approved job into the production plan. Before scheduling, we check machine loading, aluminum stock, and downstream treatment capacity so the lead time commitment is based on actual production conditions rather than a broad estimate.

Records for Repeat Supply

Process parameters, inspection criteria, and cosmetic samples from the first order are archived for repeat use. Later orders can call that record directly without reconfirming every machining detail. If the drawing changes, the version difference is marked before the record is updated.

Export Packaging Matched to the Part

Export packaging is selected by cosmetic grade and structure rather than using one generic carton method. Anodized cosmetic faces can use PE film and pearl cotton, thin-wall parts can use thermoformed trays, and large parts can use reinforced wooden cases. Once the first batch is approved, the same packaging standard is maintained for repeat deliveries.

Centralized Management of Surface Treatment Suppliers

Anodizing, bead blasting, brushing, and conductive conversion coating are coordinated through the factory, so the customer does not need to manage separate finishing suppliers. Thickness, color, and appearance standards are locked through sample approval, and if a supplier changes, a new sample can be submitted for confirmation.

Responsive Communication for Overseas Projects

For overseas customers, email and message responses are typically handled within 12 hours on working days. Drawing confirmation, quotation updates, and production progress are managed through a fixed contact to reduce information loss across multiple people.