| 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 |
These CNC machined aluminum camera lens adapter rings are precision optical mounting components that connect a lens to a camera body - or extend lens spacing - while preserving accurate flange focal distance. Turned from solid 6061-series aluminum bar on precision CNC lathes, each ring combines a smooth concentric bore, accurate internal threads and a precisely machined mount interface in one rigid part.
The outer barrel is diamond-knurled for a secure, non-slip grip during tool-free mounting, while a contrasting red anodized ring over the matte black body gives a distinctive premium finish. Critical seating faces, thread shoulders and internal stops are machined in a single setup to minimize runout, so the adapter mounts squarely, focuses smoothly and reaches correct infinity focus without light leaks or play.
Every ring is machined to +/-0.01 mm on critical dimensions and protected by hard-wearing anodizing in black, red or custom colors, with deburred edges and verified thread fit. Whether you need lens mount adapters, extension tubes, filter rings or custom optical barrels for photography, cinematography and machine-vision systems, we support prototypes through high-volume production with full inspection reports.
Single-setup CNC turning and turn-mill work hold tight runout on bores, internal threads and mount seats for an accurate, play-free lens fit.
Matte black with a contrasting red ring - multi-step anodizing, sandblasting and knurling create a durable, premium camera finish.
6061 aluminum with mill certificates, CMM inspection and ISO 9001 / IATF 16949 traceability on every production batch.
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.
Don’t see your material? Send your drawing for review — we will confirm availability and quote it.
Functional and cosmetic finishes applied in-house or through vetted partners.
Type II protective anodize, natural silver finish.
Type III hard coat, wear-resistant black.
Blue, red, gold, green dye for audio and 3C.
Uniform matte texture, hides machining marks.
Durable corrosion-resistant RAL colors.
Removes free iron, boosts stainless corrosion.
Zinc, nickel, chrome, tin for connectors.
Permanent non-contact logos and serials.
Precision recorder shell CNC machined from 6061-T6 aluminum. ±0.005mm tolerance with black anodized finish for electronic devices.
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Custom CNC machined aluminum power bank enclosure with thin-walled anodized housing. Tight tolerance, lightweight and premium surface finish.
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CNC machined aluminum enclosure housings with internal bosses, threaded holes and precision cutouts for electronics, robotics and instrumentation.
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High-efficiency VMCs for prototype, mid-volume and large-batch metal parts production.
Integrated drilling, tapping and milling shortens lead time for aluminum enclosures.
Combined drilling-milling lines support both small batches and volume OEM orders.
Well-organized production zones support everything from one-off parts to mass programs.
Systematic line layout raises machining efficiency and guarantees on-time delivery.
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.
Fully certified quality management system. Every batch ships with material certificates and inspection reports you can trust.
Our engineers review every drawing upfront — flagging tolerances, undercuts and cost drivers before a single chip is cut.
Custom foam, wooden crates and FBA-ready packaging. Door-to-door freight to 60+ countries with full tracking.
Your message lands directly with our senior engineers — instantly acknowledged.
We study your requirements and propose a workable solution with material & process options.
Detailed quotation with specs, options and lead time — no hidden fees.
Approve the sample, then we mass-produce with full QC and on-time shipping.
WhatsApp: +86 13790500374
Email: info@rejincnc.com
Your CAD files are kept strictly confidential. Quotation within 24 hours.