Dustproof sample-case Wholesale 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.
Long-tail Dustproof sample-case Wholesale is the kind of search that finds exactly what you need. This page covers the niche specs, the unusual sizes, the specific certifications that head terms miss.
For your reference, here are the WL series models we typically use for Dustproof sample-case Wholesale 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 |
|---|---|---|---|---|---|
| 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 |
| WL6030-T | 600×450×300 mm | 575×420×280 mm | 4900 g | PP+Aluminum Frame | Exhibition Display |
The most common model for "Dustproof sample-case Wholesale" buyers is the WL3812-T (380×320×120 mm OD, 1400 g empty weight, PP+Aluminum Frame body).
Four components define Dustproof sample-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 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.
Our Dustproof sample-case Wholesale 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.
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.
Ordering Dustproof sample-case Wholesale is 5 steps: inquiry (12h response), quote (with recommendation), PO + 30% deposit, production (35 days + QC photos), balance payment + shipment. Repeat orders are 15-20 days. Custom OEM/ODM adds 25-30 days for mold.
Our engineers have seen 10,000+ spec sheets. Yours will not surprise us.
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.
Dustproof sample-case Wholesale: Compatible Equipment Reference
Visual summary of the key specifications. Print-friendly for buyer reference.
📹 60-second factory + product walkthrough. Dustproof sample-case Wholesale foam cutting process, equipment fitting test, customization showcase
UV-resistant: UV-stabilized PP compound, ASTM G154 500-hour tested, ΔE < 2.0 after exposure. Fire-retardant: UL94 V-0 rated material, no toxic flame retardants. Both add $1-3 per unit, 5-day additional lead time.
Standard: 3.0-3.5mm. Thinnest: 2.0mm (with reduced drop rating). Thickest: 5.0mm (with reinforced ribbing). Wall thickness <2.0mm requires special tooling. We optimize wall thickness per use case during the DFM review.
Standard foam: 3-axis CNC, 0.5mm tolerance, ±0.2mm cut precision. 5-axis foam: 0.3mm tolerance, for complex cavities (lenses, irregular shapes, multiple small items). Adds 3-5 days lead time, $5-15 per foam set premium.
Stock modifications: 15-20 days. New mold: 25-30 days after design approval, plus 5-7 days for sample. Full process: 30-40 days from spec confirmation to first production batch. We expedite (10-15 days) for orders >5,000 units with surcharge.
Yes. Logo options: molded-in (5,000+ unit order, $500 mold fee, 30-day lead time), printed (any order, $0.50/unit setup, 5-day lead time), or laser-etched (any order, $1/unit setup, 5-day lead time). Logo file: vector PDF, AI, or EPS.
Free 5-day prototyping. ISO 9001 factory-direct. Ships to 47 countries.