Custom 6061-T6 Aluminum CNC Turned Knurled Parts for OEM Assemblies

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Custom CNC Machined Components

Custom 6061-T6 Aluminum CNC Turned Knurled Parts for OEM Assemblies

Shenzhen Perfect Precision Products Co., Ltd. manufactures drawing-based cylindrical aluminum components for OEM and industrial applications. The reference part features a turned outer profile, a diamond-pattern knurled band, a central opening and end-face mounting features. Final dimensions, tolerances, material condition and finishing requirements are confirmed during engineering review.

CNC turning · Controlled knurling · Secondary drilling and boring · Blasting and anodizing options · Laser marking review · Drawing-based inspection

2026年9月24日 1 (8)

Built Around the Features That Affect Assembly

Cylindrical parts often depend on more than the outside diameter. Bore size, end-face hole position, concentricity, thread fit, edge condition, knurl coverage and surface finish can all affect the final assembly. Our engineering team reviews these relationships together so the manufacturing route, inspection plan and quotation reflect the actual function of your part.

The supplied reference images show an aluminum cylindrical component with a diamond-pattern knurled band and end-face features. The source file identifies 6061-T6 aluminum, turning, knurling, blasting, anodizing and laser engraving. These details remain subject to confirmation against the approved drawing, purchase order and material documentation.

CNC Turning, Knurling and Secondary Features

Controlled Knurled Geometry

The knurled band is treated as a defined functional feature rather than a decorative texture. The drawing should specify pattern, pitch, depth, band width, coverage and the transition to smooth turned surfaces.

CNC Turning for Cylindrical Accuracy

CNC turning establishes the rotational surfaces, end faces and primary diameters. A drawing-based process helps define datum relationships, bore requirements and fit with shafts, housings, fixtures or adjacent circular components.

Secondary End-Face Operations

Drilling, boring, tapping, chamfering or other end-face operations can be added according to the customer drawing. Hole size, depth, position, thread form and geometric relationships are confirmed during review.

Aluminum Finishing and Laser Marking Options

For aluminum components, project-specific finishing may include blasting and anodizing. The required anodize type, color, coating thickness, masking areas and cosmetic acceptance criteria should be stated in the RFQ. Finish selection can affect appearance, dimensional build-up and functional performance, so it is reviewed as part of the complete process route.

Laser engraving can be reviewed for part numbers, logos, orientation marks or traceability information. Please provide the artwork, marking position, orientation, size, contrast requirement and acceptance standard. No marking content is assumed from the reference photographs.

Technical Specifications

Item
Available information
Confirmation status
Part type
Custom cylindrical CNC-machined component with a visible knurled band
Visible in reference images
Material
6061-T6 aluminum identified in the supplied source filename
Confirm with drawing and material certificate
Primary process
CNC turning with visible circumferential diamond knurling
Confirm project route during review
Dimensions
No controlled drawing dimensions were supplied
To be confirmed from drawing
General machining capability
±0.01 mm standard capability; special areas may be reviewed to ±0.005 mm
Part-specific tolerance requires drawing review
Surface roughness capability
Ra 0.1–3.2 listed as a general company capability
Required value to be confirmed
Inspection resources
6 QA/QC inspectors and 5 testing instruments, including CMM and 2D measuring equipment
Inspection plan is project-dependent

Manufacturing and Quality Control Process

01. Drawing Review

Review turning access, workholding, bore depth, hole and thread details, knurl transitions, edge breaks, tolerances, finish masking and marking locations.

02. Material Verification

Confirm the requested 6061-T6 grade and temper. Material certificates or test reports can be discussed when required by the purchase specification.

03. Machining

Machine the cylindrical blank by CNC turning, followed by drilling, boring, tapping, chamfering or other secondary operations as defined by the drawing.

04. Finishing

Coordinate deburring, blasting, anodizing and laser marking according to approved process sequence, masking, artwork and cosmetic requirements.

05. Inspection

Check critical diameters, length, bore, hole position, geometric relationships, knurl coverage and appearance according to the quality plan.

06. Packaging

Protect the anodized surface and knurled band from impact, abrasion and contamination. Export or custom packaging can be quoted to specification.

Potential Applications and Target Industries

The cylindrical body, knurled band and end-face features may suit custom knobs, handwheels, sleeves, housings, spacers, mounting components, locating parts, fixtures, jigs, test equipment, robotics mechanisms and industrial automation assemblies. These are geometry-supported application categories, not confirmed end uses for the pictured component.

Shenzhen Perfect reports experience serving medical, aerospace, automotive, marine, robotics and automation, agricultural machinery, industrial equipment and electronics industries. Industry-specific documentation, traceability, cleanliness and certification requirements should be agreed before quotation.

From Prototype to Repeat Production

The factory supports prototype, pilot-run and production requirements. A structured engineering review helps identify missing specifications before quotation and supports a controlled transition from initial samples to repeat orders.

Engineering review focus: tolerance allocation, knurl definition, bore and hole relationships, material confirmation, surface treatment, laser-marking requirements, inspection documents and packaging protection.

What to Include in Your RFQ

  1. 2D engineering drawing with datums, dimensions, tolerances and thread call-outs.
  2. 3D CAD file in STEP, IGS, STL, X_T or another available format.
  3. Material grade and temper, including confirmation of 6061-T6 if required.
  4. Prototype, pilot-run and repeat-production quantities.
  5. Knurl pattern, pitch, depth, band width and termination requirements.
  6. Bore, hole, thread, chamfer and mounting specifications.
  7. Blasting appearance, anodize type, color, thickness and masking requirements.
  8. Laser-marking artwork, position, orientation and identification requirements.
  9. Required inspection documents, material certificates, FAIR, CMM report or third-party inspection.
  10. Target delivery date, destination, packaging requirements and preferred Incoterm.

Why Work with Shenzhen Perfect?

OEM/ODM Manufacturing

Engineering, production and quality-control resources are organized around custom manufacturing projects.

Multi-Process Support

Reported capabilities include CNC milling, CNC turning, mill-turn machining, sheet metal, molding, casting, forging, rapid prototyping and finishing coordination.

Quality Resources

The company reports 6 QA/QC inspectors and 5 testing instruments, including CMM and 2D measuring equipment.

International Project Support

The supplied company information reports export experience, support for customers in multiple countries and regions, and confidentiality arrangements available on request.

Frequently Asked Questions

Is this part made from 6061-T6 aluminum?

The supplied source filename identifies 6061-T6 aluminum. The grade and temper should be confirmed through the approved drawing, purchase order and material certificate before production.

Can you manufacture the visible knurled band?

Yes, CNC turning and knurling are supported. The quotation requires the knurl pitch, depth, pattern, width and transition requirements.

Can you machine the bore and end-face holes?

The reference images show a central opening and additional end-face features. The exact process route depends on hole locations, thread requirements, tolerances and the required geometric relationships.

What tolerance can you achieve?

The reported general machining capability is ±0.01 mm, with special areas reviewed to ±0.005 mm. Actual feature tolerances depend on material, size, geometry, datum strategy, process route and inspection requirements.

Can you provide anodizing and laser marking?

Anodizing and laser engraving are identified in the supplied project information. Specify the anodize type, color, thickness, masking, artwork, position and appearance criteria for quotation.

Do you accept prototype and small-batch orders?

Prototype, pilot-run and production requirements are supported. Quantity, sample cost and schedule are confirmed after reviewing the drawing, material, finish and current capacity.

What inspection reports can be supplied?

Available documentation can be discussed according to the quality plan, including dimensional reports, FAIR, material certificates, certificates of conformity, CMM reports or third-party inspection.

What drawing formats can I send?

Common formats include STEP, IGS, STL, X_T, PDF, DWG and DXF. Sending both a 3D model and a dimensioned 2D drawing is recommended when available.

Send Your Drawing for a Technical Review

Whether you need a small prototype or a repeat-production program, our engineering team can review the features that affect fit and appearance: bore geometry, mounting holes, knurl pattern, machining tolerances, anodizing and laser marking.

Send your drawing, CAD file or dimensioned sketch with the required material, quantity, finish and inspection requirements. We will identify missing specifications and prepare a project-based quotation based on the confirmed scope.

Request a Quote

Final specifications, lead time and commercial terms are confirmed after drawing review.

Shenzhen Perfect Precision Products Co., Ltd. · Custom CNC turning and OEM component manufacturing


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