Detailed specs for Medium un3373-case Wholesale from KeXinMaterials source factory. Outer/inner dimensions in mm/inch, weight, material, foam options. Compare WL2305 series. MOQ 30. 12h quote, 35-day delivery.
Medium un3373-case Wholesale buyers usually start with two questions: what fits, and how much does it weigh empty. Then comes the third: is the case actually IP67, or is that printed on the box? We answer all three with data.
Below is the catalog data for Medium un3373-case Wholesale. 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 |
|---|---|---|---|---|---|
| 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 "Medium un3373-case Wholesale" buyers is the WL2305 (230×180×45 mm OD, 240 g empty weight, PP+PC body).
Four components define Medium un3373-case Wholesale 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 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.
Common equipment we have designed Medium un3373-case Wholesale 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.
When evaluating Medium un3373-case Wholesale 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 Medium un3373-case Wholesale 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.
Most suppliers list dimensions in a single unit. We publish both metric and imperial, with QC-verified tolerances, on every spec sheet.
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.
Medium un3373-case Wholesale: WL Series Specs Comparison
Visual summary of the key specifications. Print-friendly for buyer reference.
📹 60-second factory + product walkthrough. Medium un3373-case Wholesale dimension comparison, foam cutting precision, factory QC line
We use a stainless steel pin hinge (3mm diameter for small, 5mm for large) rated for 10,000 open/close cycles. Hinge caps are molded into the case body, not screwed on. The hinge pin is removable for foam service.
Standard foam set is 25mm base + 10mm convoluted lid foam, CNC-cut to 0.5mm tolerance. Total foam thickness 35mm. Custom foam thickness available: 15-50mm base, with or without anti-static (ESD) treatment.
Standard: IP67 (submersible 1m / 30 min). Premium: IP68 (submersible 5m / 30 min) available for select models with reinforced seals and pressure valve. All IP tests performed by SGS, TUV, or Intertek at our lab in Zhongshan.
Engineering-grade polypropylene (PP) for standard, PP + glass fiber (PP+GF) for heavy-duty. We also offer ABS, PC+GF, and PA66+GF30 for specific applications. Material certification included with every shipment.
Standard: -40°C to +80°C. Validated by 12-cycle temperature chamber test per MIL-STD-810H Method 501.7 (high) and 502.7 (low). Some specialty materials extend to +120°C for industrial use.
Free 5-day prototyping. ISO 9001 factory-direct. Ships to 47 countries.