XILILAI / PRECISION MACHINING
Milling, turning and Swiss-type machining for housings, shafts and precision interfaces. The drawing determines the setup, the finishing sequence and what we measure.
EQUIPMENT & PROCESS SELECTION
The equipment counts below are from the 2025 register for the former Dongguan site. Current Shenzhen equipment availability, part suitability and any tolerance are confirmed during project review.
Housings, pockets & mounting faces
For accessible faces, bores and milled features. Review tool access, pocket depth and the datums needed to locate the part between setups.
EXPLORE CAPABILITY
Angled features & multi-face geometry
For features approached from several directions. Engineering confirms the fixture, clearance and machining sequence for the actual part.
EXPLORE CAPABILITY
Slender shafts, pins & intricate details
For small turned components where support near the cut matters. The register includes STAR SB-20R typeG and Tsugami S205A / BO208 / S206A.
EXPLORE CAPABILITYThe register also lists fixed-head CNC turning, automatic lathes and precision engraving. Five-axis engraving equipment is excluded from the 60-machine CNC figure above.
VIEW THE EQUIPMENT REGISTER ↗WHERE THE DETAIL MATTERS
Our machining notes show how wall support, datum relationships and surface treatment affect the route. Each requirement belongs to its drawing.
READ THE MACHINING NOTES ↗HOUSINGS / FORM CONTROL
Clamping and the measurement condition matter as much as the nominal diameter. A documented housing drawing specifies 0.02 mm cylindricity on its designated feature.
Wall support & coating considerations ↗7075 ALUMINUM / MATING FEATURES
A 7075 carrier drawing calls for selected finish turning after anodizing. The treated surfaces and the final mating features require different handling.
Machining after anodizing ↗6061 ALUMINUM / EDGES & CONTACT FACES
A retaining-ring drawing combines a black-anodized finish with deburring and edge-breaking requirements. Local callouts take precedence over general chamfers.
Retaining-ring drawing notes ↗These are drawing-based process examples, not inspection results or general tolerance claims.
MATERIAL → MACHINING → FINISH
Material condition, coating allowance and the surfaces used for location belong in the same process review. A finish can change a fit that was correct before treatment.
Specify the product form, alloy, temper or heat-treatment condition, and any material certification or traceability requirements. Our documented aluminum examples include 6061 and 7075.
Aluminum machining ↗Identify fits, datum features, threads, sealing faces and surface-roughness callouts. Distinguish functional requirements from general drawing tolerances.
Design-for-manufacture review ↗Define the treatment specification and any thickness requirements, appearance, masking, contact points and post-treatment machining. Identify dimensions to be accepted after treatment. Specialist partner operations are identified in the agreed manufacturing scope.
Coordinated manufacturing ↗
DIMENSIONAL VERIFICATION
For material-specific planning, see 6061 aluminum machining, 7075 aluminum machining and 316L stainless steel machining. For surface requirements, use the machined surface roughness guide to prepare the inspection discussion.
The metrology register lists a coordinate measuring machine, vision and 2D instruments, surface-roughness meters and gauges. Confirm current instrument availability, calibration status and the inspection method for each drawing requirement during project review.
BEFORE PRODUCTION
Share the model and controlled drawing together. Engineering can then review the geometry, the inspection requirements and the requested quantities against one part revision.
3D model, 2D drawing, material grade, threads, fits and critical-to-function features.
Prototype quantity, repeat demand and target delivery. Capacity and timing are confirmed with the route.
Surface requirements, inspection records, cleanliness and handling requirements where applicable, protective packaging, and the condition in which parts will be accepted.
There is no single tolerance that applies to every part. Geometry, material, setup, treatment and measurement method all matter. Send the marked features for engineering review; equipment-register accuracy is not a finished-part guarantee.
We confirm the working envelope against the selected machine, fixture and tool access. Include overall dimensions and the 3D model so engineering can assess the setup; a machine model alone does not establish a usable part envelope.
Yes, the scope can include coordinated specialist operations. XILILAI machining and partner-supplied operations are distinguished during review, including any final machining or inspection required after treatment.
Use these points to prepare the engineering discussion. Dimensions and acceptance criteria are agreed for your component.
A rotating end mill cannot leave a perfectly square internal pocket corner. A larger permitted radius can allow a more rigid cutter; a deep pocket with a small radius forces a different tooling discussion. Where a square mating component must seat, consider a local relief or another operation rather than making every corner exceptionally small.
On the drawingIdentify the mating envelope and the largest internal radius the assembly allows.
A housing may be easy to cut but difficult to locate consistently on its second face. Explain which mounting face, bore or axis locates the component in use. A drawing that controls a hole from an unrelated outer edge can force extra work without improving assembly. Five-axis access can reduce some repositioning, but fixture clearance and inspection still matter.
On the drawingMark functional datums and keep dimensions between mating features explicit.
An alloy name alone does not define a purchase. Product form and temper or heat treatment affect the route. A coating can change a fit, and aggressive deburring can soften a sealing edge. For a metal housing, agree which dimensions apply before finishing and which must be met on the delivered part.
On the drawingList grade, condition, finish, masked areas and the final acceptance state.
A close bearing fit, seal land and cosmetic outside wall rarely need the same control. Blanket tight tolerances increase setup, measurement and rejection exposure across features that may not affect function. For XILILAI’s review, provide the mating part or explain the fit; this is more useful than asking for the best possible accuracy everywhere.
On the drawingSeparate critical dimensions, general tolerances and appearance requirements.
Compare the complete manufacturing route, including tooling, secondary operations and the purpose of the part.
| Route | Worth considering for | What to resolve |
|---|---|---|
| 3-axis milling | Accessible pockets and faces | Check tool reach and datum transfer between setups. |
| 5-axis machining | Angled features and multi-face access | Review fixture clearance and the value of fewer setups. |
| Turning / Swiss machining | Features organized around an axis | Compare length, support and cross-feature requirements. |
A drawing defines the geometry. The inspection plan defines how acceptance will be demonstrated.
No. Use it when access or setup reduction benefits the component. A simpler geometry may be more economical on a three-axis machine.
A model starts the review. Threads, tolerances, surface requirements and inspection records need an agreed specification before manufacture.
XILILAI’s equipment register supports CNC milling and turning. The machining route, inspection scope and available capacity are reviewed against each drawing.
Discuss cnc machining