Portable car-roof-cargo-box from KeXinMaterials source factory. OEM/ODM, wholesale, factory-direct pricing. 9 WL series sizes WL1204-WL5020, IP67/MIL-STD-810H certified, MOQ 100, 12h quote, 25-day delivery to 47 countries.
Most Portable car-roof-cargo-box marketing claims do not survive a real-world drop test. Our cases do — because we test every batch to the same standard we publish, not to a 'design intent'.
For your reference, here are the WL series models we typically use for Portable car-roof-cargo-box applications. Outer dimensions (OD) are measured to the outside of the case; inner dimensions (ID) reflect the usable cavity after subtracting wall thickness. All in millimeters; imperial dimensions in our catalog PDF.
| Model | Outer (mm) | Inner (mm) | Weight (g) | Material | Size Class |
|---|---|---|---|---|---|
| WL1204 | 120×90×40 mm | 115×78×32 mm | 100 g | PP | Phone / Wallet |
| WL2005 | 195×170×46 mm | 190×135×40 mm | 175 g | PP | Action Camera / GoPro |
| WL2808 | 275×230×82 mm | 265×190×76 mm | 480 g | PP | Tablet / E-reader |
The most common model for "Portable car-roof-cargo-box" buyers is the WL1204 (120×90×40 mm OD, 100 g empty weight, PP body).
Shell material for Portable car-roof-cargo-box is selected per use case: standard PP for general purpose, PP+GF for heavy-duty (10% glass fiber improves impact strength by 35%). Foam is 25 kg/m³ closed-cell PE, 0.5mm CNC cut tolerance. Anti-static ESD foam (10^6-10^11 Ω) available for electronics.
The shell is rated IP68 (submersible 5m / 30 min) ingress protection and validated to MIL-STD-810H Method 516.8 (26 drops at 2.0m). Temperature range is -30 ~ +80 °C. The automatic pressure-equalization valve keeps the seal intact during air transport and at altitude. Latch is a double-throw design rated for 5,000 open/close cycles. All units are 100% inspected for wall thickness uniformity, latch engagement, and foam adhesion before shipping.
Common equipment we have designed Portable car-roof-cargo-box foam layouts for, based on real customer projects since 2014: DSLR + 2-3 lenses, mirrorless kits, cinema cameras with matte box + monitor, drones (DJI Mavic/Phantom/Inspire) with 5 batteries, broadcast lighting kits, military optics, medical devices.
For Portable car-roof-cargo-box, the decision comes down to: equipment dimensions (always measure with 5-10mm foam clearance), IP rating (IP65 indoor, IP67 outdoor, IP68 water), and certification (FCC for USA, CE for EU, MIL-STD for military). Beyond that, it is foam layout and quantity discount.
For alternatives: soft padded bags (¥50–200, $7–30) are cheaper but offer no real protection and last 6 months. Aluminum hard cases ($80–300) are heavier, prone to denting, and 2–4× the price. Carbon fiber cases ($300+) are overkill for 95% of B2B use cases. Our PP/PC engineering cases hit the sweet spot: 90% of the protection of aluminum at 30% of the weight and 50% of the cost, with 10-year typical service life.
Standard Portable car-roof-cargo-box: MOQ 100 units, 25-day production, T/T 30/70. Custom: MOQ 500 units, 25-30 days mold + 25 days production. We support L/C for >$20,000 orders. Sample lead time 5-7 days, sample cost refundable on >2,000 unit order.
If a competitor claims IP67 but cannot produce a third-party certificate, ask them why. We always can.
Established 2014. 13,000 sqm factory in Fusha Industrial Park, Zhongshan, Guangdong. 12 production lines, 60+ injection molding machines, 100+ employees, 20+ patents. Monthly capacity 80,000 units. Annual export revenue 8M+ USD to 47 countries.
Direct from the OEM. Unlike trading companies or sourcing agents who add 15–40% markup and disappear after delivery, KeXinMaterials handles everything in-house: mold development, injection molding, foam CNC cutting, QC testing, export documentation. Our 2024 buyer survey showed 87% repeat-order rate and 0.3% defect rate across 47 countries.
| Quantity | Unit Price | Discount | Lead Time | Sample |
|---|---|---|---|---|
| 50-99 pcs | USD 12.35 | — | 20 days | Free (pay shipping) |
| 100-199 pcs | USD 10.92 | 5% off | 25 days | Free (pay shipping) |
| 200-499 pcs | USD 9.50 | 10% off | 30 days | Free (pay shipping) |
| 500-999 pcs | USD 8.55 | 15% off | 30 days | Free (pay shipping) |
| 1000+ pcs | USD 7.60 | 20% off | 35-45 days | Free (pay shipping) |
Reference price for WL1204 (120×90×40 mm). Custom sizes, colors, foam add 5–30%. Quote valid 30 days.
Portable car-roof-cargo-box: Lab Test Certificate Reference
Visual summary of the key specifications. Print-friendly for buyer reference.
📹 60-second factory + product walkthrough. Portable car-roof-cargo-box lab test footage: water submersion, drop test, temperature chamber
ASTM B117 standard, 96 hours continuous salt spray (5% NaCl solution at 35°C). After 96 hours, no visible corrosion on metal parts, no delamination of surface coating. Standard for all outdoor-rated models.
UV exposure test per ASTM G154: 500 hours accelerated UV exposure (UVA-340 lamp, 60°C). After 500 hours, color shift ΔE < 2.0, no cracking, no chalking. Suitable for outdoor storage and direct sun exposure.
Anti-static foam option: surface resistance 10^6 to 10^11 Ω per ANSI/ESD S541. Standard foam is non-ESD. If you are transporting electronics (camera bodies, circuit boards, hard drives), specify anti-static foam.
UL94 V-2 standard (self-extinguishing within 30 seconds, no flaming drips). Higher UL94 V-0 rating available for select materials. We do not use materials with toxic flame retardants (Deca-BDE, HBCD) per ROHS.
Resistant to: petroleum products, mineral oil, dilute acids and alkalis, alcohols, and most industrial solvents. Not resistant to: concentrated sulfuric acid, aromatic solvents (benzene, toluene), and prolonged exposure to chlorinated solvents.
Free 5-day prototyping. ISO 9001 factory-direct. Ships to 47 countries.