Precision Turned Aluminum 6061-T6 Optical Lens Mount 1.035-40 Thread Black Anodized 40mm Outer Diameter

This optical lens mount is machined from Aluminum 6061-T6 (6061-T6) to ±0.01mm in the critical dimensions, then finished by Matte black hard anodized 25μm. It is produced on CNC turning centres that are dedicated to small and medium volume precision work, so every dimension on the drawing is generated by the machine rather than by hand fitting. Typical users are engineers who have already been let down by a supplier that quoted a tolerance it could not hold, and who need the part to fit the first time without sorting or rework on the assembly line.

• Thread Fit Repeatability: 1.035-40 threads are single point turned and gauge verified so optics index to the same angular position every time
• Low Reflectance Coating: Type III matte black anodize measures under 3% reflectance at 550nm to suppress stray light
• Concentricity Held To 0.01mm: Bore and thread are cut in one setup on a turn-mill center, holding 0.01mm TIR between register face and thread axis
• Thermal Stability: 6061-T6 keeps dimensional drift predictable across a 10 to 40 degree C lab swing
• Cosmetic Standard: No tool marks or anodize blotching on any visible surface, checked against a customer approved boundary sample

The process route is fixed before metal is cut. Bar stock is verified against the purchase specification and the heat number is logged, then a first article is turned and measured in full. Only after the first article is signed off does the lot run. Critical features on this optical lens mount are controlled to ±0.01mm with a process capability target of Cpk 1.33 or better, and the operator checks the feature at a defined frequency with the gauge stated on the control plan. Where the drawing calls for Matte black hard anodized 25μm, the finishing step is carried out in house and the result is measured, not assumed. Sample parts go to the CMM for full dimensional verification, and the recorded results ship with the lot as a first article inspection report in PPAP level 3 format when a customer program requires it.

Questions are handled by engineers rather than by sales staff. Our team reviews each drawing for manufacturability, flags features that would drive cost without adding function, and proposes the tolerance band that actually matters for the assembly. That review is free and is returned within 24 hours together with a quotation. When a part fails in the field, we ask for the sample back, section it if needed and report what the failure mechanism was, because a supplier that cannot explain a failure cannot prevent the next one.

• Machines: 50+ CNC units including Swiss type lathes, 3, 4 and 5 axis machining centres and turn-mill centres from Citizen, Star, Doosan and Mazak.
• Quality lab: CMM, 2D vision measurement, roughness tester, hardness tester, salt spray chamber and spectral analyser for material verification.
• Team: 15+ mechanical engineers covering DFM review, process design, fixture design and failure analysis.
• Capacity: 500,000+ precision turned parts per month with stable output and on time delivery tracking.
• Quality system: ISO 9001:2015 certified, SGS audited, material traceability from mill heat to finished part.
• Export experience: parts shipped to 30+ countries across North America, Europe, Japan, Korea and Southeast Asia.

Laser optics assemblies, machine vision lens barrels, spectroscopy instruments, camera modules and laboratory beam steering mounts.

Parts are degreased, dried and packed so that the surface finish specified above arrives intact. Standard packing is VCI paper or individual PE bag, a partitioned foam tray for form features, and an export grade corrugated carton on a pallet, with the lot number and heat number marked on the outside. Parts are warranted against material and workmanship defects for 12 months from delivery. If a part is found outside the drawing, we replace it at our cost and we pay the return freight for the defective lot. Third party inspection by SGS, BV or TUV can be arranged before shipment at your request, and we work under NDA where drawings are confidential.

Q: Do you gauge the 1.035-40 thread or just mike it? A: Both. Pitch diameter is checked with a thread gauge and the functional fit is proven with a customer supplied mating ring. Each lot ships with the gauge readings recorded.

Q: Will anodizing change my thread fit? A: Type III anodize grows the surface about half the coating thickness per side. We cut the thread with a pre-plate allowance and re-check the fit after coating, so the final assembly torque stays inside your window.

Q: Can you hold the cosmetic standard of an optical grade part? A: Yes. Parts are handled with lint free gloves, inspected under diffuse light at 45 degrees, and packed individually in foam lined trays.

Q: What drawing formats do you accept? A: PDF, DWG, DXF, STEP and IGES. GD&T callouts are read directly and repeated on our first article inspection report.

Q: How do you confirm the Aluminum 6061-T6 material before it is machined? A: Every bar is checked against its mill certificate with an optical emission spectrometer before it goes to a machine. If the chemistry does not match the grade, the bar is rejected and returned. The certificate for your lot is filed under the heat number and can be sent with the shipment or on request.

Q: What happens if a delivered part measures outside the ±0.01mm tolerance? A: Send the measurement and the lot number. We check the recorded values for that lot, replace the parts at our cost and cover the return freight. Because each critical feature is recorded during production, we can trace the deviation to a tool wear step, a fixture shift or a gauge issue and correct the process before the next lot runs.

Send a 2D drawing, a STEP file or a sample and you will have a manufacturability review and a firm quotation within 24 hours. Trial orders from a single piece are accepted, so the tolerance claim can be checked on your own assembly before a production order is placed.