Cold-resistant un3373-case from KeXinMaterials source factory. OEM/ODM, wholesale, factory-direct pricing. 9 WL series sizes WL1204-WL5020, IP67/MIL-STD-810H certified, MOQ 30, 12h quote, 35-day delivery to 47 countries.
Buyers who care about Cold-resistant un3373-case certifications usually do so for a reason: their end customer requires it, or their insurance demands it, or their industry standard mandates it. We have shipped to all three.
For Cold-resistant un3373-case, the WL series splits into Small (WL1204-1504), Medium (WL1905-2808), and Large (WL3812-5020). Within each tier, 2-3 models vary in width and depth. We help you choose during the 12h quote consultation, but the table below is the reference.
| Model | Outer (mm) | Inner (mm) | Weight (g) | Material | Size Class |
|---|---|---|---|---|---|
| WL2305 | 230×180×45 mm | 225×150×40 mm | 240 g | PP+PC | First Aid Kit |
| WL3812 | 380×320×120 mm | 365×280×110 mm | 1100 g | PP+PC | Vaccine Carrier |
| WL6030-O | 600×450×300 mm | 575×420×280 mm | 4200 g | PP+PC+VIP | Organ Transport |
The most common model for "Cold-resistant un3373-case" buyers is the WL2305 (230×180×45 mm OD, 240 g empty weight, PP+PC body).
Cheap protective cases use 15 kg/m³ foam that bottoms out after 6 months. Our Cold-resistant un3373-case uses 25 kg/m³ foam rated for 5+ year use. The difference is in the cell structure: 25 kg/m³ cells rebound after compression, 15 kg/m³ cells do not. We have tested both. The cheaper foam fails.
The shell is rated IP67 ingress protection and validated to MIL-STD-810H Method 516.8 (26 drops at 1.5m). Temperature range is -80 ~ +50 (depending on PCM/VIP configuration) °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.
We maintain 200+ foam-cut reference designs for Cold-resistant un3373-case, covering camera bodies, drone kits, broadcast gear, military equipment, medical devices, and industrial tools. Send us your equipment list, we will match to the closest reference or draft a new layout free within 24 hours.
When evaluating Cold-resistant un3373-case options, focus on three metrics: (1) Foam density — cheap cases use 15 kg/m³ foam that bottoms out; ours is 25 kg/m³, 5+ year use. (2) Latch cycle rating — cheap plastic latches break after 200 cycles; ours is metal-reinforced, 5,000 cycles. (3) IP certification — every batch ships with serialized IP test certificates.
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.
After Cold-resistant un3373-case ships: (1) We send QC photos before shipment. (2) Lot certificate with serial numbers. (3) 90-day defect replacement. (4) Foam re-cut service for equipment changes. (5) 5-year case body warranty. (6) Tooling stored 3 years for easy reorder.
Our cases pass MIL-STD-810H Method 516.8 with 26 drops at 1.2m. We can show you the test rig and the post-test inspection photos.
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 15.08 | — | 20 days | Free (pay shipping) |
| 100-199 pcs | USD 13.34 | 5% off | 25 days | Free (pay shipping) |
| 200-499 pcs | USD 11.60 | 10% off | 30 days | Free (pay shipping) |
| 500-999 pcs | USD 10.44 | 15% off | 30 days | Free (pay shipping) |
| 1000+ pcs | USD 9.28 | 20% off | 35-45 days | Free (pay shipping) |
Reference price for WL2305 (230×180×45 mm). Custom sizes, colors, foam add 5–30%. Quote valid 30 days.
Cold-resistant un3373-case: Lab Test Certificate Reference
Visual summary of the key specifications. Print-friendly for buyer reference.
📹 60-second factory + product walkthrough. Cold-resistant un3373-case lab test footage: water submersion, drop test, temperature chamber
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.
Standard PP case: density 0.91 g/cm³, so yes, all our cases float. Foam-filled case with typical payload (5-30kg equipment): overall density may exceed 1.0, may not float. Specify float requirement and we adjust foam density.
Free 5-day prototyping. ISO 9001 factory-direct. Ships to 47 countries.