Non-Standard Custom Adapter Sleeve and Bushing with ±0.01mm Tolerance and NDA Protected CNC Turn-Mill Machining
Custom Adapter Sleeve
,Non-Standard Sleeve Machining
,OEM Aluminum Bushing Part
Need an adapter sleeve or bushing that is not a standard part? Dongguan Changxinda Precision Technology Co., Ltd. machines fully custom, non-standard sleeves and bushings 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 steps, bore, slots and material; we return a manufacturability review and a quote, then machine, inspect and ship. Critical features — bore fit, step diameters and slot 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:
- 1Send drawings: 2D PDF, STEP, IGES or SolidWorks — or a physical sample to reverse-engineer.
- 2DFM review: engineering feedback on steps, bore fit, slot, material and cost before you commit.
- 3Quote in 24h: transparent pricing by drawing and quantity, no tooling charge.
- 4Program & fixture: dedicated turn-mill CAM and fixtures for your sleeve.
- 5CNC machining: turning and milling to ±0.01 mm on critical features.
- 6Finish & inspect: anodizing, passivation or coating, then CMM dimensional report.
- 7Ship: protected export packing to your schedule.
Non-standard is our normal work. Custom step sequences, bore sizes, slot and keyway profiles, threads and wall thickness — all machined to print.
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 2008-established CNC factory with 90+ staff, multiple turn-mill lathes and 4-axis / 5-axis machining centers backed by a dedicated QC lab.
Custom sleeve and bushing work for ten industries, all under one roof and one inspection standard:
- Consumer ElectronicsPhone / tablet / laptop housings, heat sinks, camera brackets, VR/AR headset structural parts, smart wearable shells.
- Automation & Industrial EquipmentAutomation fixtures, jigs, module frames, transmission sliders, motor mounts, sensor housings, assembly line components.
- Semiconductor & Vacuum EquipmentVacuum chambers, vacuum fittings, precision bases for semiconductor equipment, thermal and insulating parts, inspection tooling.
- Medical EquipmentSurgical instrument bases, medical testing instrument housings, endoscope accessories, medical aesthetic device structural parts (medical-grade aluminum / stainless steel).
- AutomotiveNew-energy motor housings, battery end plates, sensor brackets, headlamp structural parts, modified parts, hydraulic valve blocks.
- Aerospace & UAVAircraft structural parts, drone frames, landing gear accessories, aviation instrument housings (lightweight precision parts).
- Optics & PhotonicsOptical lens barrels, lens mounts and bases, light source heat sinks, camera module brackets, inspection optical platforms.
- Communications5G heat dissipation cavities, filter parts, signal adapter structural parts, communication equipment housings.
- RoboticsRobotic arm joint parts, robot bases, reducer housings, AGV structural parts.
- Instruments & MetersTesting equipment housings, precision gauge bases, flow meter parts, laboratory equipment accessories.
- ✓100% custom adapter sleeves and bushings built to drawing
- ✓±0.01 mm on bore fit, step diameters and slot position
- ✓NDA and IP protection before engineering review
- ✓Materials: aluminum, stainless steel, brass, titanium
- ✓Surface: black / clear anodizing, passivation, coating
- ✓Dedicated turn-mill 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 adapter sleeve / bushing (OEM / ODM) |
|---|---|
| Machining | Turn-mill composite, build to drawing |
| Tolerance | ±0.01 mm on critical features |
| Material Options | Aluminum, stainless steel, brass, titanium |
| Surface Treatment | Black / clear anodizing, passivation, coating |
| Customization | Non-standard, build to drawing / 3D CAD |
| 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 steps, bore, slots 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 fit and environment.
Every part is CMM-inspected against the drawing — bore fit, step diameters, slot and profile — with a full dimensional report and first-article inspection on new programs.
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