5-Axis Milled Aluminum Part
Complex pockets, compound angles and precision faces for OEM mechanical assemblies.
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CNC Machining Services
Precision CNC Machining Services for OEM Metal Parts
CNC machined parts should not arrive as expensive mystery objects. MSTFAB reviews drawings, material, tolerance, finish, inspection and packing before quoting, so buyers know what will actually be manufactured.
23+years OEM metal manufacturing experience
Drawingproject-specific tolerance and inspection review
3/5axis milling and turning support
RFQmaterial, quantity and revision checked before quote
Buyer Confidence
What professional buyers need from a CNC machining supplier.
A cheap CNC quote is not helpful if the material is vague, the tolerance is assumed, or the finish shows up looking like it lost a fight with the carton. We make the quote easier to trust by defining the manufacturing route up front.
Drawing-based reviewSTEP, STP, PDF and critical dimensions are checked before production assumptions become expensive.
Material confirmationAluminum, stainless, steel and brass grades are clarified before price and lead time are promised.
Inspection planFAI, CMM, thread checks and surface checks can be defined for buyer-critical features.
Export packingSmall machined parts, shafts and cosmetic surfaces are packed for overseas transport, not just a short ride across town.
Capabilities Matrix
CNC machining scope for real OEM production.
Final capability depends on material, geometry, datum structure, surface finish, batch size and inspection requirement. The point is not to promise magic; it is to quote a part that can actually be made and repeated.
Milling
3-axis and 5-axis CNC milling
Complex blocks, housings, plates, brackets, slots and pockets for aluminum, stainless steel and other metals.
Turning
Shafts, bushings and fittings
Round parts with threads, grooves, bores and concentric features produced on CNC lathes.
Materials
Aluminum, stainless, steel and brass
Material grade and heat treatment are confirmed before machining strategy and quote approval.
Tolerance
Critical dimensions called out clearly
Tight tolerances are focused on fit and function, not sprinkled across the drawing like expensive confetti.
Finish
Anodizing, passivation and polishing support
Surface finish is planned around appearance, corrosion, masking, threads and assembly fit.
Batch Support
Prototype to repeat production
Small validation runs and repeat OEM batches are supported with clear revision and inspection control.
Factory control
CNC parts that fit your sheet metal assembly.
A small machined part can determine whether a finished enclosure assembles cleanly. Our team reviews the mating features in your files before the machining route, inspection points and finishing requirements are agreed.
Fit-critical details reviewed early
Datums, hole patterns, threads and clearances are checked against the enclosure interface, so the RFQ captures what matters to assembly.
Inspection scope agreed for each order
The drawing package and order requirements define critical dimensions, first-article checks and protection of finished faces.
2001MSTFAB established
3 + 5Axis milling scope
2D / 3DDrawing inputs reviewed
FAIWhen agreed for the order
Trust Table
How we reduce CNC sourcing risk before the PO.
A serious CNC quote should tell you what is included, what is assumed and where inspection happens. If the quote is just a number, congratulations: you bought a guessing game.
| Buyer concern | What MSTFAB checks | Why it matters |
|---|---|---|
| Material substitution | Grade, certificate need and finish compatibility. | Prevents cheaper material quietly becoming your quality problem. |
| Tolerance drift | Critical dimensions, datums, inspection method and sample approval. | Protects fit, function and repeatability across batches. |
| Finish mismatch | Anodizing, polishing, brushing, passivation or plating notes. | Controls appearance, corrosion and masking risk. |
| Assembly failure | Thread depth, hole position, mating faces and burr control. | Stops small features from causing big rework. |
| Export damage | Tray, bag, foam, carton and crate plan by part geometry. | Protects shafts, edges and cosmetic parts during shipping. |
Process
A clean CNC machining workflow for buyer drawings.
The workflow is simple on purpose: clarify the drawing, machine the right features, inspect the risky dimensions, protect the parts, then ship them like they matter.
1
RFQ review
We check drawings, material, quantity, tolerances, finish, threads and inspection notes.
2
Machining plan
CAM setup, tooling, fixtures and datum strategy are prepared for the part geometry.
3
Inspection
First article and critical dimensions are checked before batch release.
4
Finish and packing
Parts move to finishing, cleaning, labeling and export packing as required.
CNC Parts Gallery
Typical CNC machined metal parts we support.
These are custom parts and manufacturing components, not finished products. Send your drawing package and we will quote the machining scope clearly.
CNC Turned Stainless Shaft
Round parts with grooves, shoulders, threads and stable concentric dimensions.
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Black Anodized Aluminum Part
Cosmetic aluminum machining with anodized finish and controlled visible surfaces.
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Stainless Manifold Block
Milled ports, threaded holes and sealing faces for industrial fluid or equipment use.
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Precision Stainless Steel Shaft
Turned shaft geometry for repeatable fit in buyer assemblies.
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Aluminum Heat Sink
Machined fins, flatness and mounting features for thermal management parts.
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Titanium Mounting Bracket
Lightweight metal bracket geometry for high-strength mounting requirements.
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CNC Milling Production
Machine setup and cutting route reviewed before batch production starts.
Get Quote →RFQ Package
Send enough detail once. Avoid five rounds of quote ping-pong.
For an accurate quote, send your 3D model, 2D drawing, material grade, quantity, surface finish, tolerance notes and any inspection or packing requirements. If a feature is critical, mark it. If it is cosmetic, say that too.
Reviewed by MSTFAB Manufacturing Engineering TeamGuangzhou source factoryLast updated: July 2026
What helps us quote faster?
- STEP/STP model plus 2D PDF drawing
- Material grade and heat treatment if required
- Quantity, annual demand and delivery target
- Critical dimensions, datum notes and thread requirements
- Surface finish, cosmetic zones and packaging requirements
FAQ
CNC machining questions buyers ask before RFQ.
Short answers, because nobody needs a novel before sending a STEP file.
What CNC machining services does MSTFAB support?
CNC milling, CNC turning, multi-axis machining, drilling, tapping, deburring, finishing coordination and dimensional inspection for custom metal parts.
Do you make finished equipment?
No. MSTFAB supplies custom machined parts and metal fabrication parts. We do not supply finished machines, electronics, proprietary equipment or complete consumer products.
What files should I send for quotation?
Send STEP or STP files, 2D PDF drawings with critical dimensions, material grade, quantity, finish, tolerance notes and inspection requirements.
How can I reduce CNC machining cost?
Loosen non-critical tolerances, avoid unnecessary cosmetic finishes, choose standard material, mark only true critical dimensions and consolidate order volume where possible.
CNC machining buyer checks
Make the drawing, inspection and delivery scope visible.
For machined parts that must fit a sheet-metal enclosure or assembly, the approved drawing should lead every decision. These checks help buyers define the RFQ scope and the evidence to request.
01Drawing revision and assembly fit
Send a STEP/STP model and controlled 2D PDF drawing. Mark datums, mating faces, hole patterns, threads and fit-critical dimensions. DXF/DWG files can support profile details when needed.
02Machining route and material
Confirm the material grade and features that need milling or turning. Ambiguous notes, inaccessible features and proposed substitutions should be resolved against the actual drawing before quotation.
03Agreed inspection evidence
Identify the dimensions, threads and mating features that need checking. Agree on any sample, first-article record or fit check in the order requirements; inspection scope is project-specific.
04Finish and packing handoff
Specify cosmetic faces, finish and areas to protect. Selected finishing may be completed by a long-term partner; MSTFAB coordinates the approved requirements and protective packing scope.
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