Aluminum CNC Machining Laser Cutting Service Hard Anodized
Aluminum CNC Machining Laser Cutting Service Hard Anodized

Aluminum CNC Machining & Laser Cutting Service

Rejin CNC provides an integrated aluminum CNC machining, laser cutting and hard anodizing service for OEM buyers. From flat laser-cut plates to complex 5-axis milled enclosures, everything is produced in-house — ±0.005mm tolerance, film thickness and color controlled batch by batch, IATF 16949 certified. Send your drawing and get a quotation with free DFM feedback within 24 hours.
±0.005mmCNC machining tolerance, CMM verified
3-in-1Machining + laser cutting + hard anodizing in-house
200+CNC machines & 2 fiber laser lines
24hQuote with free DFM feedback
  • Machining, laser cutting and hard anodizing all in-house — one supplier, full accountability
  • ±0.005mm tolerance with CMM reports; anodic film thickness tested batch by batch
  • IATF 16949 / ISO 9001 / ISO 13485 certified, 200+ CNC machines
  • Free DFM feedback within 24 hours — NDA protected from first contact
  • 23+ years OEM experience, MOQ from 1 piece to 100k+ annual programs
Capability Specification
Laser Cutting Fiber laser, max thickness 12mm (aluminum) / 20mm (steel), sheet 4000×2000mm, precision ±0.1mm
CNC Milling 3-axis/5-axis, tolerance ±0.005mm
CNC Turning max diameter 200mm, max length 500mm, tolerance ±0.005mm
Materials Aluminum 6061/6063/7075, Stainless Steel, Steel
Surface Finish Type III hard anodizing, Type II anodizing, polishing
Secondary Drilling, tapping, deburring

What Is This Service

Aluminum CNC machining with laser cutting and hard anodizing under one roof is what most buyers piece together from three vendors — we run all three in the same plant in Dongguan.

How your aluminum part is made here: sheet and plate up to 6 m are cut on fiber lasers; blocks and forgings are milled on 3/4/5-axis centers; turned features run on CNC lathes. Then the same facility hard-anodizes (Type III, 25–50 µm), clear or color anodizes, and laser-marks — so anodic film thickness, color match and masking are controlled by one quality system, not three.

Why it matters for your BOM: when machining and anodizing sit under different roofs, tolerance disputes start — hard anodizing grows the part 50% of film build. Our engineers compensate pre-anodizing dimensions in the CAM stage, so mating features still assemble after coating. That single detail eliminates the most common aluminum-part rejection.

Typical parts we run: robot arms and end effectors, drone frames, heat sinks and liquid-cooling plates, audio housings, pneumatic manifolds, and 3C device frames — from 6061/6063/6082/7075 plate and billet.

What you get with every order: ±0.005mm as-machined tolerance (CMM report shipped), film-thickness test reports per batch, ROHS/REACH documentation on request, and IATF 16949-controlled process records for automotive programs.

Why OEM Buyers Choose Rejin CNC

One Roof, No Handoff Risk — Rejin CNC in-house capability

One Roof, No Handoff Risk

Laser cutting, CNC machining and hard anodizing are consecutive in-house steps — no third-party coating delay, no split responsibility when tolerances and coating interact.

Anodizing-Aware Machining — Rejin CNC in-house capability

Anodizing-Aware Machining

CAM compensates for Type III film growth before cutting. Mating threads, bores and sealing faces assemble correctly after hard anodize — verified by film-thickness tests.

From Prototype to 100k/Year — Rejin CNC in-house capability

From Prototype to 100k/Year

The same lines take a 5-piece design-validation run and a 100,000-piece annual frame order, with PPAP-style documentation when your program needs it.

Materials We Machine

From aerospace-grade aluminum to medical-certified engineering plastics, our in-house CNC machining centers work a broad range of metals and plastics under one roof.

Metals

Aluminum alloy raw stock bar for CNC precision machining
Aluminum
6061-T66063-T57075-T6505220246082
High strengthAnodizableLightweight
Stainless steel raw material for precision CNC machined parts
Stainless Steel
303304316 / 316L17-4PH430
Corrosion resistantFood & medical gradeHigh strength
Carbon alloy steel raw stock for CNC precision machining
Carbon & Alloy Steel
1018104512L144140A36
High strengthHeat treatableWear resistant
Brass copper bar stock for CNC turned precision parts
Brass & Copper
C3604C26000C17200 BeCuC11000
ConductiveCorrosion resistantFree machining
Titanium alloy stock for aerospace grade CNC precision machining
Titanium & Exotics
Grade 2Grade 5 (6Al-4V)Inconel 718Monel 400
Aerospace gradeHeat resistantBiocompatible

Engineering Plastics

Engineering plastics POM, ABS and high performance polymers for CNC machining
POM (Delrin)
Low frictionDimensionally stableWear resistant
Nylon (PA66)
ToughAbrasion resistantImpact resistant
PTFE (Teflon)
Chemical resistantHigh temperatureLow friction
PEEK / PEI (Ultem)
High temperatureMedical gradeHigh performance
ABS / PC / PMMA
Impact resistantTransparent optionsFlame retardant

Don’t see your material? Send your drawing for review — we will confirm availability and quote it.

Surface Finish Options

Functional and cosmetic finishes applied in-house or through vetted partners.

Clear anodized aluminum

Clear Anodize

Type II protective anodize, natural silver finish.

Black hard anodized enclosure

Black Hard Anodize

Type III hard coat, wear-resistant black.

Color anodized aluminum parts

Color Anodize

Blue, red, gold, green dye for audio and 3C.

Bead blasted aluminum surface

Bead Blast

Uniform matte texture, hides machining marks.

Black powder coated enclosure

Powder Coating

Durable corrosion-resistant RAL colors.

Passivated stainless flanges

Passivation

Removes free iron, boosts stainless corrosion.

Nickel plated hardware

Plating

Zinc, nickel, chrome, tin for connectors.

Laser engraved logo

Laser Marking

Permanent non-contact logos and serials.

From Drawing to Delivery

1Send drawingSTEP/IGS/DXF/PDF — plate, tube or billet parts
2DFM & quote24h: coating-stack tolerance review included
3Laser cut / CNC machineFiber laser to 6 m; 3/4/5-axis machining ±0.005mm
4Hard anodize & finishType III 25–50 µm, masking per drawing, color match
5Inspect & reportCMM, film thickness, adhesion & salt-spray on request
6Pack & shipFilm-interleaved packing, global DHL/FedEx/UPS

Quality You Can Verify

CMM coordinate measuring machine for 3D precision inspection
01CMM 3D Precision MeasurementDedicated CMM lab verifies critical dimensions, hole positions and GD&T callouts per IATF 16949 practice; 3D scanning avoids assembly issues on complex parts.
Height gauge inspection equipment for in-process dimensional verification
02In-Process Dimensional VerificationContinuous on-line checks with precision gauges catch deviations early and minimize scrap risk during volume OEM runs.
Stereo microscope inspection for surface finish and visual quality checks
03Surface Finish & Visual InspectionSurface roughness, scratches, burrs and coating defects are checked against appearance standards before packing.
First article inspection report verification
04First-Article Inspection (FAI)Standardized FAI before every production run, with a formal report to guarantee dimensional consistency across the batch.
Raw material traceability management with mill certificates
05Material TraceabilityComplete material certifications and batch records — every machined part is traceable to its original mill, per IATF 16949.
Final functional performance checks before shipment
06Final Functional ChecksFull final inspection catches hidden defects dimensional tests can miss, so parts perform reliably in your assembly.
Film thicknessEvery anodized batch measured & documented (µm)
CMM reportsDimensional reports shipped with each order
Salt-spray testedCorrosion validation per ASTM B117 on request
IATF 16949Automotive-grade process control & traceability

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Inside Our Factory — 200+ Machines Under One Roof

Vertical machining center workshop — Rejin CNC factory

Vertical Machining Centers

High-efficiency VMCs for prototype, mid-volume and large-batch metal parts production.

Drill-machining center workshop — Rejin CNC factory

Drill & Tap Machining Centers

Integrated drilling, tapping and milling shortens lead time for aluminum enclosures.

Multi-function CNC machining workshop — Rejin CNC factory

Multi-Function Machining Shop

Combined drilling-milling lines support both small batches and volume OEM orders.

CNC production workshop with organized work areas

CNC Production Workshop

Well-organized production zones support everything from one-off parts to mass programs.

Standard CNC turning and milling production line

Standard CNC Lines

Systematic line layout raises machining efficiency and guarantees on-time delivery.

Full set of CNC milling equipment running continuously

5-Axis Machining Equipment

Complete CNC equipment set enables stable continuous running for OEM volumes.

Dongguan, China · 200+ CNC machines · In-house anodizing & laser cutting · Visitors and third-party inspections welcome.

Quality, Engineering & Logistics — Built for Global Buyers

IATF 16949 & ISO 9001 Certified

IATF 16949 & ISO 9001 Certified

Fully certified quality management system. Every batch ships with material certificates and inspection reports you can trust.

Free DFM Engineering Support

Free DFM Engineering Support

Our engineers review every drawing upfront — flagging tolerances, undercuts and cost drivers before a single chip is cut.

Secure Packaging & Global Shipping

Secure Packaging & Global Shipping

Custom foam, wooden crates and FBA-ready packaging. Door-to-door freight to 60+ countries with full tracking.

Frequently Asked Questions

Can you hold tolerances after hard anodizing?
Yes — Type III anodizing grows dimensions by about half the film thickness. We compensate critical dimensions in machining and verify final size on CMM after coating, so mating parts still fit. Tell us which faces are functional and we quote the coating stack accordingly.
What aluminum grades and forms can you process?
6061, 6063, 6082, 7075 and 5052 in plate, billet, tube and sheet. Laser cutting handles sheet up to 6 m long; machining takes billet up to 2,000 mm. If your alloy is not listed, send the spec — our mill partners cover most exotics.
Is there a minimum order quantity?
No hard MOQ. Prototypes from 1 piece and annual programs above 100,000 parts run on the same equipment. Volume pricing improves at 50+ pieces for machined parts and 100+ for laser-cut plates.
How do you protect color consistency across batches?
Color anodize is matched per approved sample and checked batch-by-batch under D65 lighting. For programs spanning months, we keep your dye-bath parameters on file so reorder batches match the original.
SIMPLE PROCESS

What Happens After You Click Send?

1
Inquiry Received

Your message lands directly with our senior engineers — instantly acknowledged.

2
Engineer Review

We study your requirements and propose a workable solution with material & process options.

3
Quote Within 24h

Detailed quotation with specs, options and lead time — no hidden fees.

4
Sample & Production

Approve the sample, then we mass-produce with full QC and on-time shipping.

WhatsApp: +86 13790500374

Email: info@rejincnc.com

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