
Overview
XCM CNC operates as a magnesium CNC machining factory for lightweight housings and structural parts, with ISO 9001 and IATF 16949 aligned systems, MOQ from 1 piece, standard lead time of 10-15 days, and equipment from brands such as DMG and Mazak.
AZ31B and AZ91D orders can be scheduled around material availability, machine matching, and batch consistency. For export projects, we confirm flame-safe machining, corrosion protection, room-temperature reinspection, and moisture-barrier packaging before shipment.

Key Capabilities
Machining Parameters
- Materials: AZ31B, AZ91D, project grades by drawing review
- 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 machined, Ra 0.8 um turned or bored
- GD&T: Coaxiality 0.012 mm, runout 0.01 mm, cylindricity 0.011 mm
- Max Size: Milling 3000 x 1600 x 1400 mm, turning diameter 1250 x 2000 mm
- Surface Treatment: Chromate conversion, micro-arc oxidation, e-coat, spray coating by drawing review
- Thread: M1.4-M220, NPT, BSP, G, PT
- Batch Range: 1 piece to repeat production, standard lead time 10-15 days

Large-Format Milling and Turning Capacity for Factory Orders
XCM CNC factory equipment covers 3000 x 1600 x 1400 mm milling travel and diameter 1250 x 2000 mm turning capacity for magnesium housings, brackets, and cover plates. AZ31B and AZ91D programs are matched to the right machine envelope and fixturing plan, while +/-0.03 mm standard tolerance and Ra 3.2 um milled faces stay within the base machining route.
Thread and Assembly Feature Machining for Repeat Orders
Magnesium batch parts can hold M1.4-M220 thread sizes together with NPT, BSP, G, and PT pipe-thread standards on housings and brackets. For H7 holes and h6 shaft positions, repeat orders follow the same datums and go or no-go gauge standards, while 0.015 mm position tolerance and 0.012 mm coaxiality stay tied to the first-article baseline.
Batch Inspection and Material-Lot Traceability
Magnesium repeat production can use the CMM to verify 0.012 mm coaxiality and 0.01 mm runout across multiple lots. Batch records link the material lot, first-article baseline, and CMM data together so FAI reports and material certificates can follow the order requirement with traceable history.
Export Surface Protection and Moisture Packaging
Magnesium export orders can combine chromate conversion or micro-arc oxidation with moisture-barrier packaging before shipment. After the protection step, we recheck Ra 1.6 um mating faces and 0.015 mm hole positions, then arrange foam plus carton or wooden-case packaging around the shipping route.
Specifications
| Product Name | China Magnesium CNC Machined Parts Factory |
|---|---|
| Manufacturer | XCM CNC |
| Factory Location | Shenzhen, Guangdong, China |
| Quality System | ISO 9001, ISO 13485, IATF 16949, GJB9001C |
| Machining Process | CNC machining |
| Material | Magnesium |
| Material Grade | AZ31B, AZ91D, project grades by drawing review |
| Tolerance | +/-0.03 mm standard CNC machining tolerance |
| Precision Tolerance | +/-0.003 mm for selected critical features by drawing review |
| Surface Roughness | Ra 3.2 um milled, Ra 1.6 um precision, Ra 0.8 um turned or bored |
| Surface Treatment | Chromate conversion, micro-arc oxidation, e-coat, spray coating by drawing review |
| Max Part Size | Milling 3000 x 1600 x 1400 mm / Turning diameter 1250 x 2000 mm |
| Inspection | Hexagon CMM, WanHao VMS-3020G 2.5D video measurement, TRIMOS 600L height gauge, roughness tester, thread gauges |
| Application | RF shield housings, lightweight automotive brackets, optical equipment shells |
| Typical Application | China supply projects with safe magnesium machining |
| Key Features | Ultra-lightweight structure, EMI shielding, flame-safe batch routing, moisture protection |
| Critical QC Requirements | Flame-safe machining control, distortion review, room-temperature reinspection, coating review, moisture protection |
| Batch Range | 1 piece to repeat production lots |
| MOQ | 1 Piece |
| Typical Lead Time | 10-15 business days after drawing review |
| Drawing Formats | STEP, IGS, DWG, PDF, X_T |
| Secondary Process | Deburring, chromate conversion, micro-arc oxidation, e-coat, moisture-protection packaging |
| Material Certificate | Material certificate by order requirements |
| Material Feature | Ultra-lightweight structure, damping behavior, EMI shielding, flame-safe machining review |
| Assembly Features | Thin-wall housings, grounding faces, locating holes, low-inertia structures by drawing review |
Applications
Portable Test Equipment Enclosures and Shielded Covers
Typical Parts: 5G base station heat-dissipation enclosure, RF shielding cavity, portable test equipment chassis
Magnesium is a strong fit for portable housings, shielding covers, and test equipment enclosures when low weight and EMI shielding are both needed. Repeat orders follow the same flame-safe machining route and reinspection baseline, while CMM records track wall thickness and grounding-face dimensions across lots.
Compact Instrument Boxes and Lightweight Brackets
Typical Parts: Collaborative robot end-effector housing, vision inspection stage bracket, lightweight robotic arm link
Ultra-lightweight magnesium can reduce structural load on robot end-effectors, portable devices, and compact instruments while keeping assembly stiffness. H7 insert holes and 0.015 mm positional features follow the first-article baseline, and thin-wall plates stay on the same fixturing and inspection datum through repeat lots.
Action-Camera Gimbal Mounts and Low-Inertia Frames
Typical Parts: Low-inertia bracket, quick-release frame, gimbal mount
Low inertia and damping behavior make magnesium useful for dynamic parts in drones and action-camera gimbals. Weight-reduction pockets and pivot holes can be repeated with the same toolpath parameters, while Ra 0.8 um functional faces and thread sizes are controlled by batch inspection.
Vehicle Interior Lightweight Brackets and Installation Parts
Typical Parts: Instrument panel carrier, center console bracket, battery-pack lightweight cover plate
For interior lightweight structures, magnesium can reduce inertia and installed weight as long as the service condition avoids aggressive corrosive exposure. Mounting points and rib dimensions stay traceable by batch record, while the chosen protection route and moisture packaging are completed before shipment.
Why Choose Us
Qualified Systems and Equipment Coverage
XCM CNC organizes magnesium projects under ISO 9001, ISO 13485, IATF 16949, and GJB9001C aligned quality systems, while using equipment from brands such as DMG, Mazak, Matsuura, and Brother to cover housings, brackets, and lightweight structural components. For AZ31B and AZ91D programs, we review flame-safe machining, thin-wall fixturing, and surface protection requirements during the drawing review stage.
Broad Size Range for Lightweight Magnesium Parts
We support magnesium machining from small connector-scale parts to larger structural components, including thin-wall housings, brackets, shielding covers, larger control boxes, and lightweight plates. Three-axis travel reaches 3000 x 1600 x 1400 mm and turning capacity reaches diameter 1250 x 2000 mm, while the final process plan still follows fixturing, flame-safe machining, and surface-protection needs.
Tiered Equipment Strategy for Cost and Quality
XCM CNC uses a four-level CNC equipment mix from mainland China, Taiwan, Japan, and Europe or the US. Standard faces on magnesium repeat lots can run on domestic or Taiwan machines, while precision fits and critical holes move to imported machines such as DMG and Mazak. That balances cost without sacrificing the dimensions that control assembly.
Batch Scheduling and Flame-Safe Magnesium Processing
Magnesium repeat lots are scheduled by flame-safe process route, chip-management method, and fixture order so different grades or protection requirements are not mixed into the same production window. Repeat orders keep the first-article process route and inspection baseline, while lot changes trigger a targeted review of the critical features.
Export Protection and Moisture-Barrier Packaging
After micro-arc oxidation, chromate conversion, or e-coat is complete, magnesium parts can be packed with foam plus carton or wooden-case protection for DHL, FedEx, UPS, or sea freight routes. NDA support is available, and both the protection method and packaging level are confirmed before the order is released.
FAQ
What safety measures are used when machining magnesium parts?
Magnesium parts are planned around flame-safe machining, chip control, and the required surface-protection route instead of using the same process rhythm as standard aluminum jobs. The exact method, such as dry cutting or minimum-quantity lubrication, is selected from the grade, geometry, and project environment during review.
What is the typical lead time for magnesium CNC parts from your factory?
Standard lead time is usually 10-15 days, while sample lead time is often 3-7 days depending on part complexity and order quantity. Repeat orders can often move faster because they follow the first-article process route and existing inspection baseline.
How do you maintain batch consistency for repeat magnesium production?
Repeat orders follow the first-article fixturing plan, toolpath parameters, and inspection datums, while CMM records track critical dimensions from lot to lot. When the material lot changes, we also recheck the heat number, material certificate, and protection route so the batch history stays traceable.
What payment and shipping options do you support for magnesium part orders?
Payment can be arranged by T/T, PayPal, or Western Union. Shipping can use DHL, FedEx, UPS, or sea freight, and export magnesium orders are packed with foam plus carton or wooden-case protection according to part size and customer requirements.
How do you organize safe machining, surface treatment, and export packing for magnesium orders?
For magnesium orders, flame-safe machining, surface treatment, and moisture-barrier packaging are planned as one delivery sequence. The process controls are locked during scheduling, the protection route is confirmed before machining, and the packaging level is selected from the shipping method and appearance requirements.
Can your factory schedule thin-wall magnesium lots without mixing protection requirements?
Yes. Thin-wall magnesium orders can be scheduled by grade, lot, and protection route so parts with different handling requirements do not enter the same batch by default. Larger housings or shielding parts should still define the key surfaces and reinspection scope before the order is released.
Request a CNC Machining Quote from XCM CNC
Send us your drawings. Our team will review the file and reply with a machining quote. MOQ: 1 piece, with competitive low-cost pricing.
Email: [email protected] | WhatsApp: +8618638951317



