Moisture-proof business-trolley-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.
There is a difference between 'IP-rated' and 'IP-tested'. The first is a marketing claim. The second is a third-party certificate. Our Moisture-proof business-trolley-case is the second one.
Below is the catalog data for Moisture-proof business-trolley-case. Each model has outer dimensions (in mm), inner cavity (mm), empty weight (g), and material specification. Material is engineering PP or PP+GF for impact resistance. Foam set is included: 25mm base + 10mm lid convoluted.
| Model | Outer (mm) | Inner (mm) | Weight (g) | Material | Size Class |
|---|---|---|---|---|---|
| WL3812-T | 380×320×120 mm | 365×280×110 mm | 1400 g | PP+Aluminum Frame | Sales Rep Kit |
| WL5020-T | 500×400×200 mm | 480×360×185 mm | 3100 g | PP+Aluminum Frame | Trade Show Case |
| WL8040-T | 800×500×400 mm | 770×470×370 mm | 8500 g | PP+Aluminum Frame | Mobile Conference Kit |
The most common model for "Moisture-proof business-trolley-case" buyers is the WL3812-T (380×320×120 mm OD, 1400 g empty weight, PP+Aluminum Frame body).
Moisture-proof business-trolley-case shells are rated -40°C to +80°C per MIL-STD-810H Method 501.7 (high) and 502.7 (low). Chemically resistant to petroleum, mineral oil, dilute acids, alcohols, and most industrial solvents. Not resistant to concentrated sulfuric acid, aromatic, or chlorinated solvents.
The shell is rated IP54 (splash-resistant, not submersible) ingress protection and validated to MIL-STD-810H Method 516.8 (26 drops at 1.2m). Temperature range is -40 ~ +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 Moisture-proof business-trolley-case 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.
Top 5 mistakes we see in 2024: (1) Over-specifying size — buying WL5020 when WL3812 fits. (2) Choosing by price alone. (3) Skipping IP certification. (4) Ignoring latch type. (5) Not requesting lot certificates. All five add up to a 2-3x higher TCO over 5 years.
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 Moisture-proof business-trolley-case: MOQ 30 units, 35-day production, T/T 30/70. Custom: MOQ 500 units, 25-30 days mold + 35 days production. We support L/C for >$20,000 orders. Sample lead time 5-7 days, sample cost refundable on >2,000 unit order.
Every certificate we publish is dated and serialized. We do not stock certificates — we issue them per batch.
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 37.70 | — | 20 days | Free (pay shipping) |
| 100-199 pcs | USD 33.35 | 5% off | 25 days | Free (pay shipping) |
| 200-499 pcs | USD 29.00 | 10% off | 30 days | Free (pay shipping) |
| 500-999 pcs | USD 26.10 | 15% off | 30 days | Free (pay shipping) |
| 1000+ pcs | USD 23.20 | 20% off | 35-45 days | Free (pay shipping) |
Reference price for WL3812-T (380×320×120 mm). Custom sizes, colors, foam add 5–30%. Quote valid 30 days.
Moisture-proof business-trolley-case: Lab Test Certificate Reference
Visual summary of the key specifications. Print-friendly for buyer reference.
📹 60-second factory + product walkthrough. Moisture-proof business-trolley-case lab test footage: water submersion, drop test, temperature chamber
PP and PP+GF cases are 100% recyclable. We have a take-back program for end-of-life cases from large customers (1,000+ units / year): we collect, shred, and reuse the regrind in non-critical components.
All IP ratings are third-party tested by SGS, TUV, or Intertek at our lab in Zhongshan, Guangdong. We test every new mold design to IP67 and select models to IP68. Test certificates are dated and serialized.
MIL-STD-810H is the US Department of Defense test standard. Our cases pass Method 501.7 (high +70°C), 502.7 (low -40°C), 514.8 (vibration), 516.8 (26 drops at 1.2m), 506.6 (rain / water penetration). Used by armed forces in 30+ countries.
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.
Free 5-day prototyping. ISO 9001 factory-direct. Ships to 47 countries.