Quzhou Aoyin Metal Materials Co.,Ltd
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Inside Our Manufacturing Network
Extrusion, precision CNC machining and anodizing — an integrated production system built for e-rickshaw and e-scooter battery enclosures.
Three Production Stages, One Accountable Partner
From aluminum billet to finished, anodized battery enclosure — every stage of your project is managed under one quality system and one point of contact. All facilities, including our own CNC workshop, are open for your factory audit.
Aluminum Extrusion
Custom profile tooling, 1,800–2,800 UST presses, profiles from 30 mm to 300 mm width. Battery box profiles with snap-fit and screw-boss features extruded to drawing.
Precision CNC Machining
60+ machining centers including 3/4/5-axis. Milling, drilling, tapping and chamfering of battery box end caps, trays and covers. You are welcome to audit our workshop.
Anodizing & Finishing
Type II anodizing (5–25 µm), coloring and sealing for corrosion resistance and brand finish. Every batch tested for film thickness and adhesion.
Watch Our Production Lines Running
Short clips from the shop floor — real machines, real parts. Click any video to play.
All videos click-to-play (lazy loaded) — page speed stays fast on mobile networks.
From Die to Profile
Watch the same battery enclosure profile move through every production stage — from die assembly to final inspection.
Click any step to watch the actual shop-floor clip.
Operator Details on the Shop Floor
Short, focused clips of real operators doing real work — the kind of detail you see during a factory audit.
All clips are filmed on the same production line running your profile.
From Billet to Battery Box
A typical enclosure order moves through five controlled stages, with quality gates between each.
Billet & Tooling
6063/6005A billet inspection, custom die design and nitriding
Extrusion
Profile extrusion, online quenching, straightening, aging
CNC Machining
Cutting to length, milling, drilling, tapping, deburring
Anodizing
Type II anodizing, coloring, sealing, film thickness test
QC & Packing
Dimensional inspection, MTC issue, export-safe packing
Precision CNC Machining Workshop
OUR OWN FACILITY ✓ Audit WelcomeOur own CNC workshop is the heart of AOYIN's machining capability. Send your drawings or sample boxes, and our engineers will map every feature to the right machine and fixture. Third-party audits (SGS, TÜV, Bureau Veritas) and customer inspections are welcome on short notice.
| Equipment | Qty | Travel / Capacity | Typical Part Tolerance |
|---|---|---|---|
| 5-Axis Machining Centers | 6 | A/C rotary table, 5-face machining in one setup | ±0.05 mm (complex multi-face parts) |
| Profile Machining Centers | — | X = 2,500 mm, built for long aluminum profiles | ±0.10 mm (up to 2.5 m length) |
| 3/4-Axis Vertical Machining Centers | 40+ | 850 × 530 × 530 mm | ±0.02 mm (prismatic features) |
| High-Speed Drilling & Tapping Centers | 10 | 24,000 rpm, 48 m/min rapids | ±0.05 mm (hole position) |
| CNC Lathes | — | Ø500 mm swing, 4,000 rpm, 8-station turret | ±0.02 mm (diameter) |
| CMM & Measuring Instruments | — | CMM, height gauge, thread gauges | Verification of all tolerances |
| Typical achievable part tolerances by process; tighter tolerances available on request with CMM-verified inspection reports. | |||
Aluminum Extrusion Lines
✓ Audit WelcomeProfiles are extruded on dedicated production lines under AOYIN's tooling and quality control. Dies are owned by AOYIN, so your profile designs stay locked to your project. Customers regularly visit the extrusion lines that run their profiles — audits and inline inspections are welcome at any production stage.
| Item | Specification |
|---|---|
| Press capacity | 1,800 UST / 2,500 UST / 2,800 UST |
| Profile width range | 30 – 300 mm |
| Alloys | 6063, 6005A, 6061 (T4 / T5 / T6) |
| Annual capacity | 20,000+ tonnes |
| Tooling lead time | 10 – 15 days for new custom dies |
Anodizing & Surface Finishing
✓ Audit WelcomeType II sulfuric anodizing with coloring and sealing, controlled to your spec on film thickness, color consistency and salt-spray performance. Every batch comes with a finishing report. Audit welcome — see the tank line and film-thickness testing for yourself.
| Item | Specification |
|---|---|
| Finish | Type II sulfuric anodizing, 5 – 25 µm |
| Colors | Clear, black, silver, champagne, custom tint |
| Max workpiece length | 6.0 m (can be sectioned to battery box size) |
| Tests | Film thickness, adhesion, CASS / salt spray on request |
Every Batch Checked, Every Order Traceable
ISO-standard quality procedures run across the whole production network — certification upgrade in progress. A Mill Test Certificate (MTC) and dimensional inspection report accompany every shipment.
- ✓Incoming billet inspection
Spectrometer alloy verification before extrusion - ✓First-article inspection (FAI)
Full dimensional report on the first piece of every batch - ✓In-process SPC sampling
Critical dimensions checked every 2 hours on CNC lines - ✓CMM final inspection
Coordinate measuring machine verification on machined features - ✓Anodic film testing
Thickness gauge + adhesion test per finishing batch - ✓Traceability & MTC
Batch numbers link material, die, machine and inspector
Key Equipment at a Glance
| Stage | Core Equipment | Qty | What It Means for You |
|---|---|---|---|
| Extrusion | 1,800–2,800 UST presses, die shop, aging furnaces | 3 lines | Custom profiles in 10–15 days tooling |
| Machining | 3/4/5-axis VMCs, tapping centers | 60+ | Complex features, ±0.02 to ±0.05 mm part tolerance |
| Finishing | Type II anodizing line, thickness testing | 1 line | Corrosion resistance + brand color |
| Inspection | CMM, spectrometer, film thickness gauge | Full lab | MTC + inspection report per batch |
Planning a Battery Enclosure Project?
Send your drawings or sample box. We'll reply with a process plan and quotation within 48 hours.
WhatsApp +86 133 0570 9557 | Email info@aymetals.com | Factory audits welcome by appointment
Email：
Add:No 339-1 shangye village Gouxi Township Kecheng district Quzhou City, zhejiang province,China
Add:No 339-1 shangye village Gouxi Township Kecheng district Quzhou City, zhejiang province,China
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