From 1 piece
OUJI offers 3-axis, 3+2 indexed and simultaneous 5-axis milling in metals and engineering plastics, from 1 piece, with typical ±0.01 mm tolerances after drawing and process review.
One-piece aluminum alloy shroud, machined from solid stock using simultaneous 5-axis milling.
OUJI selects the milling route around your part's geometry, tool access, workholding and inspection requirements. Send your drawing; you do not need to choose the machine first.
Faces, pockets and holes reachable from the selected setup.
The tool cuts in three linear axes from a fixed orientation.
Additional faces may require re-clamping; OUJI reviews the setup count and datum transfer before choosing the route.
Related features on several faces or at fixed angles, where the fixture permits access.
Two rotary axes position the part and remain stationary during each cut.
Indexing can reduce repeated re-clamping for accessible faces; rotary clearance, workholding and datum relationships still require review.
Contoured surfaces or tool-access requirements that cannot be met from fixed cutting orientations.
Linear and rotary axes move together so tool orientation can change during a cut.
OUJI confirms the machine, toolpath and collision clearance after drawing and process review; the geometry must justify the added motion planning.
| Milling process | Installed equipment | Part size and review conditions |
|---|---|---|
| 3-axis CNC milling | 21 3-axis milling machines | Part size is confirmed at engineering review; largest recorded 3-axis X × Y travel: 1300 × 700 mm. |
| 3+2 indexed / simultaneous 5-axis milling | 9 5-axis machining centers | Part size is confirmed after drawing and process review; rotary clearance, fixtures and tool access determine the usable multi-axis envelope. Machine limits include Ø520 × H350 mm (Matsuura MX-520; manufacturer-specified maximum workpiece size) and 500 × 700 × 800 mm (Qiaohong; recorded travel) on different machines. These limits cannot be combined. |
OUJI's 9 5-axis machines include Litz, Matsuura, Shuaike, Qiaohong.
OUJI's 21 3-axis machines include Feeler, Brother, Shenyang, Guosheng, FANUC, Qiaofeng.
Positioning accuracy and machine accuracy are equipment-record indicators, not achievable part tolerances. Finished-part dimensions and tolerances are confirmed after drawing, material, setup and inspection review.
| Machine / brand | Origin | Quantity | X × Y travel | Spindle speed | Machine positioning accuracy | Listed machine accuracy | Finished-part tolerance |
|---|---|---|---|---|---|---|---|
| Feeler 650 | China | 4 | 600 × 500 mm | 12,000 rpm | 0.01 mm | 0.02 mm | Confirmed after drawing and process review |
| Feeler 850 | China | 2 | 800 × 500 mm | 10,000 rpm | 0.01 mm | 0.02 mm | Confirmed after drawing and process review |
| Shenyang VC560 | China | 3 | 600 × 500 mm | 16,000 rpm | 0.01 mm | 0.02 mm | Confirmed after drawing and process review |
| Shenyang | China | 1 | 1000 × 600 mm | 10,000 rpm | 0.01 mm | 0.02 mm | Confirmed after drawing and process review |
| Qiaofeng V13 | China | 1 | 1300 × 700 mm | 8,000 rpm | 0.01 mm | 0.02 mm | Confirmed after drawing and process review |
| Guosheng | China | 2 | 800 × 500 mm | 8,000 rpm | 0.005 mm | 0.02 mm | Confirmed after drawing and process review |
| FANUC | Japan | 2 | 500 × 400 mm | 24,000 rpm | 0.005 mm | 0.01 mm | Confirmed after drawing and process review |
| Brother | Japan | 6 | 500 × 400 mm | 16,000 rpm | 0.005 mm | 0.01 mm | Confirmed after drawing and process review |
| Machine / brand | Origin | Quantity | Recorded travel / workpiece specification | Machine positioning accuracy | Listed machine accuracy | Finished-part tolerance |
|---|---|---|---|---|---|---|
| Qiaohong | China | 1 | 500 × 700 × 800 mm | 0.005 mm | 0.01 mm | Confirmed after drawing and process review |
Litz
| Taiwan, China | 4 | 500 × 400 mm | 0.005 mm | 0.005 mm | Confirmed after drawing and process review |
Matsuura MX-520
| Japan | 2 | Ø520 × H350 mm (manufacturer-specified maximum workpiece size) | 0.005 mm | 0.005 mm | Confirmed after drawing and process review |
Shuaike RV420
| China | 2 | Ø400 mm (recorded diameter) | 0.006 mm | 0.01 mm | Confirmed after drawing and process review |
Recorded travel, diameter, length and machine accuracy are not a guarantee that those limits can be achieved together on a finished part. Tool access, fixtures, material and inspection determine feasibility.
REAL CNC PROJECTS
OUJI’s 6082 aluminum and 304 stainless steel cases document multi-face datum control with 3+2 indexed milling. The published evidence distinguishes drawing requirements, order quantities and inspection results.
View all case studies
A real EN AW-6082 aluminum case using datum-led dovetail fixturing and 3+2 indexed machining to control a drawing-specified ⌀0.02 mm position requirement across multiple faces.
Published evidence and limits Production confirmation reports the critical dimensions as OK, but the public case does not include measured values, inspection footage, cycle time or material temper.
For this order of 50 parts in 304 stainless steel, OUJI combined material preparation, solution heat treatment and controlled workholding with Qiaohong (乔鸿) 3+2 indexed machining.
Published evidence and limits The order quantity is 50 parts. The published measurements cover the two displayed CMM evaluations. Engineering reviewed and approved the B → C to C → B datum-order change. The ISO-referenced drawing and the ASME Y14.5 program setting are documented separately; the comparison is to the programmed limits. The excerpt does not establish batch-wide acceptance or a sampling plan.
Find material and grade examples for your CNC milling project. OUJI confirms grade, condition and machining suitability during quotation.
| Material | Example grades | Confirm for quotation |
|---|---|---|
| Aluminum | 6061-T6 · 6082-T6 · 7075-T6 · 2024-T3 · 5083-H111 | Specify material condition, thread requirements and anodized appearance requirements. |
| Stainless Steel | 303 · 304 / 304L · 316 / 316L · 17-4 PH · 420 | Specify corrosion exposure and whether passivation is required. |
| Carbon & Alloy Steel | 1018 · 1045 · A36 · 4140 · 4340 | Specify material condition, heat treatment and protective finish. |
| Tool Steel | A2 · D2 · O1 · H13 · S7 | Specify hardness, heat-treatment condition and any grinding requirements. |
Specify the required heat treatment, surface finish and final dimensional or appearance requirements on your drawing.
Common options include anodizing, hard anodizing, passivation, plating, black oxide, powder coating, brushing, polishing and bead blasting. Compatibility depends on the base material.
Surface finishing servicesOUJI selects measurement methods for your drawing, datums and tolerances. Inspection scope, final-part requirements and reports are agreed during quotation and engineering review.
Pin and thread gauges, micrometers, height gauges and calipers are selected around each feature and tolerance.
Bore checks can use incremental pin gauges, Go/No-Go gauges, Mitutoyo three-point internal micrometers or CMM, according to the project requirements.
For hole positions, flatness, parallelism and multi-face relationships, OUJI reviews the drawing datums and repeated setups, then selects suitable height-gauge, surface-plate or CMM verification.
Surface roughness, burrs, appearance and dimensions affected by heat treatment or finishing are checked against the agreed final-part requirements. Roughness measurement is used when specified.
OUJI records measured values for customer-marked critical dimensions and dimensions with a total tolerance band of 0.02 mm or less (upper limit minus lower limit).
Wider-tolerance dimensions are also inspected and marked OK or NG on the inspection drawing. NG results include the measured value.
Every new-part project has a first-article inspection record. Customer-specific report formats and delivery requirements are agreed before production.
Dimensional reports, CMM and first-article reports, and material certificates can be provided under the agreed project requirements.
Initial parts are checked for setup accuracy, datum relationships, critical dimensions, appearance, and process stability before production continues.
Critical dimensions and process risks are monitored to detect tool wear, deformation, setup movement, or accumulated error before completion.
Finished parts, quantity, appearance, required dimensions, documents, and packaging are reviewed before shipment approval.
CMM inspection, First Article Inspection, and dimensional reports can be arranged according to drawing requirements, project risk, and the agreed inspection scope. Additional inspection and third-party testing may affect cost and lead time.
OUJI's inspection equipment includes 2 ZEISS CMMs; 4 height gauges from Mahr, Trimos and TESA; Runxing vision measurement; Mitutoyo roughness testing; microscopes and hardness testing.
Material certificates can be provided when requested and confirmed during quotation. Please specify the required material standard, certificate type, batch traceability, and whether material substitution is prohibited.
Material certificates and traceabilityISO 286 fits and ISO 2768 general tolerances apply only when the drawing and agreed requirements specify the relevant standard and class; individually specified tolerances take priority.
OUJI is not currently ISO 9001 certified. Projects are managed through drawing review, in-house process planning, production follow-up, inspection coordination, documentation review, and corrective action. Project-specific reports and certificates should be confirmed before production.
Quality AssuranceYou do not need to choose the machining route yourself. OUJI reviews your part and works through the production details with you.
Tell us about your part and what you need help with.
Discuss Your ProjectReady for a quote? Send your drawingsYour OUJI contact coordinates technical questions, production updates, inspection requirements and delivery follow-up.
OUJI reviews your part and machining options, then explains any proposed changes for your approval.
New parts and prototypes receive drawing review and process planning, even for a single-part order.
We reference the approved drawing revision, material, process, finish and inspection requirements. Changes are reviewed before the next order is released.
Send a 3D STEP, STP or X_T file for geometry. Add a PDF or DWG drawing when the part has tolerances, threads, GD&T, finish, material or inspection requirements.
Use the current drawing and model revision.
Specify the material grade, applicable standard, condition and order quantity, including any material certificate or substitution requirements.
Mark critical tolerances and cosmetic faces. Include heat treatment, final surface requirements, inspection documents and your target delivery date.
OUJI offers lead times from 3 business days for simple CNC parts after drawing review, with drawing approval, technical confirmation and payment arrangement required. Other milling schedules are confirmed after drawing and process review.
Lead time begins after the drawing, technical requirements, quotation and order details are approved and the required material is available.
Yes. OUJI plans machining and finishing together to meet the specified final dimensions after drawing and process review. Depending on the part, we use masking plugs, CNC machining of selected features after finishing with a planned allowance, or hand-applied masking compound for complex areas. The choice considers appearance, re-clamping accuracy and access for a second cut. Racking contact points and complex cosmetic requirements are confirmed with you before finishing.