Stackable checkup-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.
IP67, MIL-STD-810H, ROHS, CE — the alphabet soup on Stackable checkup-case marketing pages can be overwhelming. This page cuts through the noise. We publish every test result and every certificate we hold.
For your reference, here are the WL series models we typically use for Stackable checkup-case 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 |
|---|---|---|---|---|---|
| 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 |
| WL5020-D | 500×400×200 mm | 480×360×185 mm | 2400 g | PP+PC+VIP | Cold Chain 96h (2-8°C) |
The most common model for "Stackable checkup-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 Stackable checkup-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.
Here are 3 real Stackable checkup-case foam layouts from 2024-2026: (A) Sony A7 IV + 24-70mm + 70-200mm + 3 filters + 2 batteries — fits WL2808. (B) DJI Mavic 3 + RC + 4 batteries + charger — fits WL2005. (C) RED Komodo + 2 lenses + monitor + cables — fits WL5020. We share these at the 12h quote stage.
Cheap Stackable checkup-case: $3-8/unit, 6-month lifespan, 200-cycle latch, 15 kg/m³ foam. Our Stackable checkup-case: $5-15/unit, 10-year lifespan, 5,000-cycle latch, 25 kg/m³ foam. Over 5 years, our case is 4-5x cheaper per year of use. Total cost of ownership wins.
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 Stackable checkup-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 quality management is ISO 9001:2015 certified. Our factory has been audited by SGS, TUV, and Bureau Veritas. Audit reports available on request.
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.
Stackable checkup-case: Lab Test Certificate Reference
Visual summary of the key specifications. Print-friendly for buyer reference.
📹 60-second factory + product walkthrough. Stackable checkup-case lab test footage: water submersion, drop test, temperature chamber
ROHS 3 (EU 2015/863): compliant for all 10 restricted substances (Pb, Hg, Cd, Cr6+, PBB, PBDE, DEHP, BBP, DBP, DIBP). Third-party test report issued per batch, available as PDF on request.
5-year warranty on case body and latch (covers manufacturing defects, not normal wear). 1-year warranty on foam set (covers material degradation, not mechanical damage). Warranty does not cover misuse, modifications, or cosmetic damage.
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.
Free 5-day prototyping. ISO 9001 factory-direct. Ships to 47 countries.