HENGYA STAMPING / PRODUCTS / PRECISION ALUMINUM DEEP DRAWING
Precision Aluminum
Deep Drawing
From EV battery cases to luxury cosmetic caps — we specialize in high-end aluminum deep drawing with ultra-small R-angle control, zero-scratch surface protection, and in-house anodizing, sandblasting, and silk-screening.
Why Engineers Specify Hengya for Aluminum Deep Drawing
Ultra-Small R-Angle Control
Zero-gap fit for hydraulic ferrules, precision enclosures, and telescoping assemblies. Our tooling achieves radii that standard stamping cannot — eliminating leak paths and misalignment.
Zero-Scratch Surface Protection
Every part exits the press wrapped in protective film. Seamless drawn walls with anodize-ready surface finish — no orange peel, no draw lines visible after Type II/III anodizing.
Alloy Expertise: 1060 · 3003 · 6061
1060 for maximum ductility (25–28% elongation), 3003 for food-grade corrosion resistance, 6061 for structural strength. We recommend the optimal alloy for your geometry and application.
High-End Aluminum Deep Drawing: Full Spectrum
From EV energy storage to luxury cosmetics — the same ultra-small R-angle technology serves four distinct markets with uncompromising surface quality.
EV & Energy Storage Cases
Square and cylindrical deep-drawn aluminum battery cases for EV modules and energy storage systems. Consistent 1.2 mm wall thickness, zero-leakage bottom with R ≤ 0.8 mm corner radius. Proven for high-volume EV supply chains.
Luxury Cosmetic Caps & Shells
Lipstick tubes, perfume caps, and cream jar bodies in premium anodized finishes. Five standard luxury colors: Champagne Gold, Matte Silver, Deep Black, Rose Gold, Pearl White. Flawless surface — zero scratch lines, zero orange peel.
Precision Deep-Drawn Shielding Housings
3003 aluminum shielding housings deep-drawn from 1.2 mm sheet — seamless vertical walls, zero weld lines. CNC side-milling adds precision connector ports and slots with razor-sharp edges. Satin or Type II anodized finish. One-stop: deep draw + CNC, no second supplier.
High Aspect-Ratio Industrial Canisters
Deep-drawn aluminum canisters where height exceeds diameter by 4:1 or more. Perfectly smooth vertical walls — zero stretch marks, zero thinning bands. Available from 25 mm to 200 mm height. Ideal for industrial gas cartridges, medical vials, and precision packaging.
Send Us Your Drawing. We Confirm the Alloy.
You know your application. We know which alloy survives it. Upload your 2D/3D drawing and our DFM engineers will confirm alloy selection, flag wall-thickness risks, and validate draw ratio feasibility — free, within 12 hours.
Maximum Formability
We've drawn 1060 Al to R ≤ 0.3 mm corner radii and 10:1 depth-to-diameter ratios without cracking. Proven on EV battery cases and hydraulic ferrules in active production.
Corrosion & Food-Grade
Active production: seamless tea caddies for Xiaoguan Tea — 0.15–0.3 mm wall, high-saturation anodized finish, <0.1% defect rate across 200,000+ units/year. FDA-compliant for food and beverage contact.
Structural + CNC Ready
Deep-drawn 6061-T6 housings with post-draw CNC threading (M2–M12) and precision slots. Type II/III anodizing in-house. Ideal for optical instruments and aerospace brackets requiring secondary machining.
Your drawing is on our engineer's desk within 12 hours.
We review R-angle requirements, alloy selection, wall thickness uniformity, and surface finish compatibility — and return a written DFM report flagging any risks before tooling is cut. No charge, no commitment.
One Supplier: Deep Drawing + Finishing
All surface treatments are performed in-house — no outsourcing, no quality hand-offs. From anodizing to silk-screening, every process is under our QC system.
Anodizing (Type II & Type III)
Standard colors: Natural, Black, Gold, Red, Blue, Rose Gold. Custom color matching available. Type III hard-coat for wear resistance up to HV 400.
Sandblasting
Uniform matte texture (Ra 0.8–3.2 μm) applied before anodizing for a premium frosted appearance. Eliminates draw lines and micro-scratches.
Silk-Screen Printing
Logo, text, and pattern printing directly on anodized or raw aluminum surfaces. Up to 4 colors. Suitable for cosmetic packaging and consumer electronics.
CNC Threading & Precision Machining
Post-draw CNC operations: M2–M12 threading, precision slots, and port drilling. Tolerance ±0.01 mm on critical dimensions.
PVD Coating
Physical Vapor Deposition for gold, rose gold, and gunmetal finishes. Hardness HV 1500+. Scratch-resistant for premium packaging and luxury goods.
Full Capability Summary
Got a Complex Aluminum Geometry?
Upload your drawing. Our engineers will analyze your R-angle requirements, alloy selection, and surface finish needs — and provide a free DFM report within 12 hours.