Non-Standard Aluminum Flange Ring and Multi-Lug Boss Flange with NDA IP Protection and ±0.01mm Tolerance
Custom Lug Boss Flange Ring
,Non-Standard Multi Lug Machining
,Threaded Boss CNC Turning
- ISO 9001:2015 Certified
- 90+ Staff
- Prototype to Mass Production
- 50–60% Exported Since 2008
- NDA / IP Protected
Need a lug boss flange ring that is not a standard pattern? Dongguan Changxinda Precision Technology Co., Ltd. machines fully custom, non-standard multi-lug flange rings to your drawing or 3D model. Since 2008 the factory has built one-off prototypes and scheduled production batches for 200+ customers across ten industries, exporting 50–60% of its output overseas.
We are build-to-print: you define the boss count, thread size, spacing and finish; we return a manufacturability review and a quote, then machine, inspect and ship. Critical features — bolt circle, boss height and thread position — are held to ±0.01 mm and verified on a CMM, whether you order one prototype or a recurring batch.
Custom does not mean uncertain. Our workflow keeps you in control from drawing to delivery:
- Send drawings: 2D PDF, STEP, IGES or SolidWorks — or a physical sample to reverse-engineer.
- DFM review: engineering feedback on boss layout, thread spec, material and cost before you commit.
- Quote in 24h: transparent pricing by drawing and quantity, no tooling charge.
- Program & fixture: dedicated CAM and fixtures for your specific lug-boss geometry.
- CNC machining: turning, milling and thread milling to ±0.01 mm on critical features.
- Finish & inspect: anodizing, passivation or coating, then CMM dimensional report.
- Ship: protected export packing to your schedule.
Non-standard is our normal work. Custom lug boss counts and heights, thread sizes and spacing, keyways, counterbores and reliefs — all machined to print. Tolerances hold at ±0.01 mm on the features that matter, with surface roughness controlled between Ra 0.4 and 1.6 µm. Material choice spans aluminum, stainless steel, brass and titanium, so the ring suits its environment, not just its drawing.
Confidentiality is a condition of the job, not an add-on. We sign an NDA before engineering review, limit drawing access to the assigned programming and machining team, keep your fixtures and programs dedicated to your program, and scrap surplus or reject parts on request. You keep the IP; we keep it that way.
Changxinda is a CNC factory established in 2008 with 90+ staff, multiple turn-mill lathes and 4-axis / 5-axis machining centers, backed by a dedicated QC lab. Capacity is planned per program so repeat orders ship on a predictable cadence: 3–7 days for prototypes, 7–14 days for small batches and 14–30 days for production volumes, with rush support for urgent builds. Supply ability runs to 10,000 pieces per month.
Custom lug boss work for ten industries, all under one roof and one inspection standard:
- Consumer Electronics: phone / tablet / laptop housings, heat sinks, camera brackets, VR/AR headset structural parts, smart wearable shells
- Automation & Industrial Equipment: automation fixtures, jigs, module frames, transmission sliders, motor mounts, sensor housings, assembly line components
- Semiconductor & Vacuum Equipment: vacuum chambers, vacuum fittings, precision bases for semiconductor equipment, thermal and insulating parts, inspection tooling
- Medical Equipment: surgical instrument bases, medical testing instrument housings, endoscope accessories, medical aesthetic device structural parts (medical-grade aluminum / stainless steel)
- Automotive: new-energy motor housings, battery end plates, sensor brackets, headlamp structural parts, modified parts, hydraulic valve blocks
- Aerospace & UAV: aircraft structural parts, drone frames, landing gear accessories, aviation instrument housings (lightweight precision parts)
- Optics & Photonics: optical lens barrels, lens mounts and bases, light source heat sinks, camera module brackets, inspection optical platforms
- Communications: 5G heat dissipation cavities, filter parts, signal adapter structural parts, communication equipment housings
- Robotics: robotic arm joint parts, robot bases, reducer housings, AGV structural parts
- Instruments & Meters: testing equipment housings, precision gauge bases, flow meter parts, laboratory equipment accessories
- Custom boss count, height, thread size and spacing
- ±0.01 mm on bolt circle, boss height and thread position
- NDA and IP protection before engineering review
- Materials: aluminum, stainless steel, brass, titanium
- Surface: black / clear anodizing, passivation, coating
- Dedicated fixtures and programs per customer part
- No tooling charge, MOQ from 1 piece
- Stable scheduled batches for repeat orders
- 200+ served customers, 50–60% exported
- ISO 9001:2015 certified factory
| Product Type | Custom multi-lug boss aluminum flange ring |
|---|---|
| Lug Bosses | Any count / height / spacing to drawing |
| Thread | Metric or imperial, thread-milled |
| Tolerance | ±0.01 mm on critical dimensions |
| Material Options | Aluminum, stainless steel, brass, titanium |
| Surface Treatment | Black / clear anodizing, passivation, coating |
| Confidentiality | NDA / IP protection available |
| Inspection | CMM + full dimensional report |
| MOQ | 1 piece |
Yes — that is our core work. Send a 2D drawing, STEP/IGES/SolidWorks model or a physical sample and we machine the custom boss layout, threads and finish to print.
Yes, routinely. Drawings are limited to the assigned programming and machining team, fixtures and programs stay dedicated to your part, and surplus or reject parts are scrapped on request.
One piece. There is no tooling or setup charge, so single prototypes are practical and mass production runs on the same inspection standard.
Capacity is planned per program. Prototypes ship in 3–7 days, small batches in 7–14 days and production volumes in 14–30 days, with supply ability up to 10,000 pieces per month.
Aluminum, stainless steel, brass and titanium with black or clear anodizing, passivation or custom coatings — matched to your application and environment.
Every part is CMM-inspected against the drawing — bolt circle, boss height, thread position and profile — with a full dimensional report and first-article inspection on new programs.
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