Non-Standard Custom Robot Arm Linkage and Robot Joint Part Machined to ±0.01mm Tolerance with NDA Protected Build to Drawing Service
Custom Robot Arm Linkage
,Non-Standard Joint Machining
,OEM Aluminum Linkage Part
Need a robot arm linkage that is not a standard design? Dongguan Changxinda Precision Technology Co., Ltd. machines fully custom, non-standard robot linkages, joints and connecting arms 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 linkage geometry, bores, cavity and material, we return a manufacturability review and a quote, then machine, inspect and ship. Critical features — bearing bores, linkage fit and cavity — are held to ±0.01 mm and verified on a CMM whether you order one prototype or a recurring batch.
ISO 9001:2015 • 90+ staff • Prototype to mass production • Exporting 50–60% overseas since 2008
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 linkage geometry, cavity, bore fit, material and cost before you commit.
- Quote in 24h: transparent pricing by drawing and quantity, no tooling charge.
- Program & fixture: dedicated 5-axis CAM and fixtures for your linkage.
- CNC machining: 5-axis milling, turning and fitting to ±0.01 mm on critical features.
- Finish & inspect: hard anodizing, passivation or coating, then CMM dimensional report.
- Ship: protected export packing to your schedule.
Non-standard is our normal work. Custom linkage lengths, yoke and fork shapes, bearing bore sizes, internal cavities and mounting patterns — 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 5-axis machining centers and turn-mill lathes backed by a dedicated QC lab.
Custom robot linkage 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 robot linkages, joints and connecting arms
- ±0.01 mm on bearing bores, linkage fit and cavity
- NDA and IP protection before engineering review
- Materials: aluminum, stainless steel, brass, titanium
- Surface: hard anodizing, passivation, coating
- Dedicated 5-axis 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 robot arm linkage / joint (OEM / ODM) |
|---|---|
| Machining | 5-axis milling & turning, build to drawing |
| Tolerance | ±0.01 mm on critical features |
| Material Options | Aluminum, stainless steel, brass, titanium |
| Surface Treatment | Hard 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 linkage, cavity, bores 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 hard anodizing, passivation or custom coatings — matched to your load and environment.
Every part is CMM-inspected against the drawing — bores, faces, cavity and linkage geometry — with a full dimensional report and first-article inspection on new programs.
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