Precision CNC turned and milled aluminum flange adapter components
Close-up of precision threaded holes on CNC machined aluminum flange adapter
Precision CNC turned and milled aluminum flange adapter components
Close-up of precision threaded holes on CNC machined aluminum flange adapter

Precision CNC Turned & Milled Aluminum Flange Adapter Components

CNC turned and milled aluminum flange adapters with precision hole patterns, threaded holes and locating bores. +/-0.005mm tolerance, anodized, ISO 9001 certified.
+/-0.01 mmHole position & face tolerance
Turn-millTurning & milling in one setup
6061-T6Standard aluminum alloy
24hQuote with DFM feedback
  • Precision Hole Patterns: Turned and milled in a single setup, each flange holds accurate hole positions, concentric locating bores and flat mating faces for true, reliable assembly.
  • Turn-Mill Complexity: Combining CNC turning with live-tool milling and tapping produces multi-feature adapters - bores, faces, slots and threaded holes - without refixturing error.
  • Controlled Surface Finish: Sandblasting and natural or color anodizing deliver a uniform, corrosion-resistant finish with tight edge break and no sharp burrs.
  • Prototype to Volume: From one-off machined samples to repeat OEM batches, we hold consistent dimensions with FAI, CMM reports and full material traceability.
Tolerance Type Description
Precision Tolerance Parts are manufactured and inspected strictly according to your drawing specifications and GD&T annotations, with a minimum tolerance of ±0.05 mm.
General Tolerance ±0.05 mm
Minimum Feature Size 0.5 mm. The exact minimum feature size may vary depending on the part geometry and selected material.
Threading & Tapped Holes Capable of machining any standard thread sizes, as well as customized thread specifications.
Edge Condition Sharp edges are deburred and chamfered by default.
Surface Finishing Anodizing, Powder Coating, Spray Painting, Laser Engraving, Silk Screen Printing
Minimum Wall Thickness 0.5mm
Minimum End Mill Size 0.5mm
Minimum Drill Hole Size 1mm
Minimum Part Size CNC Milling: 5 × 5 × 5 mm;
CNC Turning: 2 × 2 mm;
Maximum Part Size CNC Milling: 4000 × 1500 × 600 mm

CNC Turning: 200 × 500 mm

What Is This Service

These CNC machined aluminum flange adapter components are precision rotary mounting parts used to align, connect and locate assemblies across optical, industrial and automation equipment. Each part combines a large turned flange face, concentric locating bores and a precisely arranged pattern of through, threaded and dowel-pin holes machined from solid 6061-series aluminum.

Using combined turning and live-tool milling in a single setup, we machine the circular register, bolt-circle holes, threaded holes and lightening windows without refixturing, preserving true position and face perpendicularity. The result is a rigid adapter that seats flat, aligns accurately and assembles without shimming or rework.

Every flange is machined to +/-0.01 mm on critical dimensions and can be sandblasted and natural or color anodized for corrosion resistance and a clean appearance. With FAI, CMM inspection and mill-certified material, we supply custom adapter plates, mounts, couplings and rotary housings from prototype through high-volume OEM production.

Precision Flange Adapter Capabilities

Turn-Mill Hole Patterns — Rejin CNC in-house capability

Turn-Mill Hole Patterns

Turning and live-tool milling in one setup hold precise hole positions, concentricity and flat mating faces across the flange.

Controlled Surface Finishes — Rejin CNC in-house capability

Controlled Surface Finishes

Sandblasting, natural or color anodizing and laser marking deliver a consistent, corrosion-resistant, burr-free finish.

Traceable Quality Systems — Rejin CNC in-house capability

Traceable Quality Systems

Mill certificates, FAI and CMM reports under ISO 9001 / IATF 16949, fully traceable from raw material to shipment.

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

11. DFM ReviewEngineers check design, tolerance and material selection before quoting.
22. QuotationDetailed quote within 24 hours with full cost breakdown.
33. PrototypingCNC machined samples for fit, function and finish approval.
44. ProductionCNC turning and turn-mill machining with in-process inspection at every stage.
55. Surface FinishingAnodizing or coating applied and verified for consistency.
66. QC & ShippingCMM report, material certificate and secure packaging with global shipping.

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.
100%Dimensional inspection on critical features
ISO 9001Certified quality management workflow
CMMCoordinate measuring machine verification
IATF 16949Automotive-grade quality system

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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

What tolerance do you hold on flange hole patterns and faces?
We hold +/-0.01 mm on critical bores, hole positions and mating faces, and verify true position, concentricity and flatness by CMM.
Can you combine turning and milling on one part?
Yes. Our turn-mill machines produce bores, circular registers, bolt holes, threaded holes, slots and windows in a single setup for better alignment.
Which materials and finishes are available for flanges?
6061-T6/6063 aluminum is standard, with steel and stainless on request; sandblasting, natural or color anodizing and laser marking are available.
Do you provide inspection documentation?
Yes, we supply FAI reports, CMM dimension reports and raw-material mill certificates, with full batch traceability to IATF 16949 practice.
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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