Portable 40度耐寒箱 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.
Buyers who care about Portable 40度耐寒箱 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 your reference, here are the WL series models we typically use for Portable 40度耐寒箱 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 40度耐寒箱" buyers is the WL1204 (120×90×40 mm OD, 100 g empty weight, PP body).
Four components define Portable 40度耐寒箱 protection: shell (PP or PP+GF), foam (25 kg/m³ closed-cell PE), seal (silicone gasket around the lid), and pressure valve (automatic Gore-Tex membrane for IP67/IP68). Each component is tested. Each can be replaced if worn.
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.
Our Portable 40度耐寒箱 buyers in 2024 include: 35% camera operators / filmmakers, 25% drone pilots / commercial UAS, 15% broadcast / TV stations, 10% military / law enforcement, 10% medical / first responders, 5% industrial / OEM. Profile data from 2024 buyer survey.
When evaluating Portable 40度耐寒箱 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.
Ordering Portable 40度耐寒箱 is 5 steps: inquiry (12h response), quote (with recommendation), PO + 30% deposit, production (25 days + QC photos), balance payment + shipment. Repeat orders are 15-20 days. Custom OEM/ODM adds 25-30 days for mold.
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 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 40度耐寒箱: Lab Test Certificate Reference
Visual summary of the key specifications. Print-friendly for buyer reference.
📹 60-second factory + product walkthrough. Portable 40度耐寒箱 lab test footage: water submersion, drop test, temperature chamber
ISO 9001:2015, ROHS, CE, FCC, IP67/IP68, MIL-STD-810H, UN 3480 (LiPo battery transport), WHO PQS pre-qualification (medical), REACH. All renewed annually and available as PDF.
5-stage QC: 100% surface resistance / dimensional check, 26 drops at 1.2m + water submersion, -40 to +80°C × 12 cycles, 5,000 latch cycles, 1,000 pressure valve cycles. Lot certificates traceable by serial number.
Both protect against dust (6 = dust-tight). IP67 = submersible 1m / 30 min. IP68 = submersible beyond 1m (typically 3-5m) / continuous. IP68 costs ~15% more due to reinforced seals and pressure valves.
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.
Free 5-day prototyping. ISO 9001 factory-direct. Ships to 47 countries.