2026-09-21 · KeXinMaterials 编辑团队

DJI 无人机箱 B2B 批发指南：Mavic 3 / Matrice 30 / Phantom 4 Pro / Air 3 定制泡棉

DJI 无人机箱是 B2B 批发中出货量最大的防护箱品类。一台 DJI Mavic 3 Pro + 3 块电池 + 遥控器 + 充电器需要 28-35 L 内部容积。DJI Matrice 30 (M30) 因载重能力需要 60-90 L。B&W 卖 Type 1000/3000/6000 预切泡棉。KeXinMaterials（box-beeaa.com）为任意 DJI 机型提供定制 CNC 切泡棉，9 大产品线 148 个 SKU，IP67/IP68，30-45 天生产，FOB 深圳/宁波。2026 B2B 批发指南。

DJI Model Internal Volume Requirements

Every DJI model has a different footprint. Foam insert must match drone body + gimbal + controller + batteries + charger + ND filter set. Below are verified internal volume requirements per model.

DJI Mavic 3 Pro: folded 245 x 118 x 134 mm. With 3 batteries (each 233 x 74 x 70 mm folded) + RC Pro controller + ND filter set. Required internal volume: 32-38 L. Recommended case: 400 x 350 x 250 mm internal (36 L).

DJI Mavic 3 Classic: folded 245 x 118 x 134 mm (same chassis as Pro). Same volume requirement: 32-38 L.

DJI Air 3: folded 171 x 101 x 165 mm. With 2 batteries + RC 2 controller. Required internal volume: 22-26 L. Recommended case: 330 x 280 x 200 mm internal (18.5 L) with 2-layer foam.

DJI Phantom 4 Pro: 350 x 350 x 180 mm with props. Required internal volume: 42-50 L. Recommended case: 475 x 350 x 200 mm internal (33.3 L) — matches B&W Type 6000 footprint.

DJI Matrice 30 (M30): 470 x 585 x 215 mm with props (largest consumer/pro DJI). Required internal volume: 85-120 L. Recommended case: 620 x 520 x 350 mm internal. Nanuk 965 holds 119.7 L — the industry benchmark.

DJI Matrice 30T (thermal): same chassis as M30 with thermal payload. Same 85-120 L requirement.

DJI Mini 4 Pro: 165 x 100 x 70 mm folded. Required internal volume: 12-16 L. Recommended case: 250 x 200 x 150 mm internal (7.5 L) with single-layer foam.

DJI Inspire 3: 820 x 620 x 620 mm (full cinema gimbal). Required internal volume: 200-280 L. Two-case solution typical (body case + gimbal case).

Common packing list per drone: 1x drone body, 2-4x intelligent flight batteries, 1x remote controller (+ 1x RC Pro for Pro models), 1x charger, 1x power adapter, 4-8x propeller pairs, 1x ND filter set (Pro models), 1x gimbal protector, 1x shoulder bag.

B2B relevance: Correct internal volume is the #1 procurement mistake. Under-sizing forces buyer to remove batteries from the case (violates UN 38.3 shipping requirement). Over-sizing wastes freight cost. Volume calculation must include 15-20% foam allowance.

Foam Density + Cut Type Selection

Closed-cell polyethylene (PE) foam is standard for drone cases. Density 25-35 lb/ft3 for structural protection, 15-20 lb/ft3 for delicate gimbal. Pick-and-pluck vs CNC-cut vs layered.

PE closed-cell foam (cross-linked polyethylene): standard for drone cases. Density 25-35 lb/ft3 (0.42-0.59 g/cm3) provides structural protection against 1-2m drops. Water-resistant (IP67 compatible). Non-toxic.

PU (polyurethane) foam: density 15-20 lb/ft3 for gimbal + camera protection. Softer cushioning for delicate sensors. Open-cell (absorbs water — NOT suitable for waterproof cases).

EVA foam: density 30-45 lb/ft3. Lightweight + shock absorbing. Common in low-cost cases. Less durable than PE.

Pick-and-pluck (P&P) foam: user cuts layers to fit. Cheap + flexible. Downside: irregular cuts reduce protection precision. Best for low-MOQ prototypes (10-50 units).

CNC-cut / laser-cut foam: precision cutouts for exact drone + accessory footprint. Higher tooling cost (USD 200-500 per design) but best protection. Best for 100+ MOQ production runs.

Layered / stepped foam: 2-3 layers of different density. Top layer (lid) softer for gimbal, bottom layer denser for batteries + body. Best practice for M30 + Phantom 4 Pro.

EVA + PE hybrid: PE structural shell + EVA cushioning layer. Best for high-value cinema drones (Inspire 3).

Foam thickness: 25-30 mm for 15-20 lb/ft3 PU. 40-50 mm for 25-35 lb/ft3 PE. Total foam layer consumes internal volume — must be accounted for in case sizing.

Flame retardancy: PE foam typically FMVSS 302 / CA TB 117 compliant. Requirement for airline cabin carry-on (ATA 300 Cat I).

B2B recommendation: For 100+ MOQ, CNC-cut PE foam (density 30 lb/ft3) with layered PU lid insert. Provides best protection per unit cost. For 10-50 MOQ prototype, pick-and-pluck PE.

IP67 / IP68 + Waterproof Case Requirements

Drone cases for field operations (surveying + inspection + agriculture) must be IP67 minimum. Coastal + marine applications need IP68. KeXinMaterials offers both.

IP67 (IEC 60529): dust-tight (6) + temporary immersion 1m for 30 min (7). Standard for outdoor survey + inspection drone cases. Salt spray + rain + dust resistant.

IP68: dust-tight (6) + continuous immersion per manufacturer spec (8), typically 3m for 2+ hours. Required for marine survey + underwater ROV operations + coastal drone deployment.

KeXinMaterials IP67 + IP68 cases: O-ring sealed + automatic pressure equalization valve. EPDM gasket. Operating temp -40 to +120°C.

Pressure equalization valve critical for drones: aircraft cargo hold pressure differential can crack seals + implode cases. Both KeXinMaterials + Pelican + Nanuk + SKB include automatic valves.

Battery condensation: LiPo batteries outgassing during storage. Case must include desiccant packet + vent valve that allows gas out but not water in. KeXinMaterials includes desiccant bag option.

Salt spray (ASTM B117): coastal operations. 96h+ salt fog exposure tested cases recommended. KeXinMaterials project-specific testing available.

UV exposure: outdoor drone cases exposed to direct sun for 200+ hours. Material must be UV-stable. PP + ABS blend standard. Avoid PVC (chalking + cracking under UV).

B2B recommendation: For survey + inspection + agriculture, IP67 + EPDM gasket + pressure valve + desiccant. For marine + coastal, IP68 + stainless steel hardware + salt fog tested.

UN 38.3 Battery Transport + ATA 300 Air Travel

LiPo batteries are the #1 constraint in drone case design. UN 38.3 governs air transport. ATA 300 Category I governs airline check-in acceptance.

UN 38.3 (UN Recommendations on the Transport of Dangerous Goods, Section 38.3): governs lithium battery transport. Tests T1-T8: altitude simulation, thermal cycling, vibration, shock, external short circuit, impact, overcharge, forced discharge.

UN 38.3 case design requirement: case must prevent (1) short circuit via battery terminal contact, (2) impact damage, (3) thermal runaway propagation, (4) water ingress. Non-conductive interior + terminal protection + impact-resistant shell + ventilation.

IATA DGR (Dangerous Goods Regulations): air transport of lithium batteries. Drone case with 2-4x LiPo batteries typically exceeds 100 Wh total — requires "state of charge restriction" (30% SOC for air transport since 2016 IATA rules).

IATA 30% SOC rule: for air transport, LiPo batteries must be at 30% charge or less (since Jan 2017 for passenger aircraft). Drone case design should include a documented SOC discharge procedure card.

ATA 300 Category I: airline check-in acceptance standard for photographic + electronic equipment cases. 100+ airlines accept ATA 300 cases. Requires (1) TSA-approved lock, (2) pressure equalization valve, (3) internal foam, (4) exterior dimensions within airline limits.

TSA-approved lock: Required for ATA 300 Cat I cases accepted by US TSA for airline check-in. TSA-approved lock models: TSA000 series. KeXinMaterials offers TSA lock option on request.

Cabin carry-on limit: Most airlines limit cabin baggage to 56 x 36 x 23 cm (22 x 14 x 9 in). DJI Mavic 3 case (400 x 350 x 250 mm) EXCEEDS cabin limit — must be checked. DJI Air 3 case (330 x 280 x 200 mm) FITS cabin limit. Important differentiator for buyer.

IATA lithium battery marking: Cases containing lithium batteries must display UN 3480 / UN 3481 labels depending on battery type (packed with equipment vs contained in equipment). Drone batteries shipped contained in drone = UN 3481.

B2B relevance: For B2B drone case procurement, buyer must verify (1) case prevents short circuit, (2) battery terminals protected, (3) documentation for IATA + UN 38.3 compliance, (4) ATA 300 Cat I for airline acceptance. KeXinMaterials provides UN 38.3 + IATA DGR compliant battery transport cases.

Custom Foam Design Workflow + B2B Pricing

Custom foam design workflow: buyer provides drone + accessory list, KeXinMaterials measures, CNC cuts, ships sample, buyer approves, production run. 7-15 days foam lead time, 30-45 days total production.

Step 1 — Specification: buyer provides DJI model + accessory list (drone body, battery count, controller type, charger, ND filters, prop count) + target case internal dimensions.

Step 2 — CAD / 3D scan: KeXinMaterials creates CNC foam cut path from buyer spec or 3D scan of physical drone. Standard layout: bottom layer holds drone body + batteries, lid layer holds controller + charger + ND filters + spare props.

Step 3 — Sample: KeXinMaterials produces 1-2 sample cases with custom foam (7-15 days). Buyer tests fit. Adjustments free within 2 rounds.

Step 4 — Approval + tooling: buyer signs off. CNC cutting path is finalized (no tooling cost for CNC laser / waterjet cutting).

Step 5 — Production: 30-45 days for 100+ MOQ. Includes case molding + foam CNC + assembly + QC.

Step 6 — QC: 100% fit check on first 10 units. AQL sampling per ISO 2859-1. Drop test verification per MIL-STD-810 reference.

B2B pricing (2026, FOB Shenzhen/Ningbo, 100+ MOQ): Standard IP67 case with pick-and-pluck foam USD 18-35/unit. IP67 case with CNC-cut layered foam USD 28-55/unit. IP68 stainless hardware case with CNC foam USD 45-85/unit. Wheeled variants (M30 + Inspire 3) add USD 12-25/unit.

MOQ: 100 units per model per foam design. Below 100, pick-and-pluck foam recommended (no CNC tooling).

Lead time breakdown: case molding 15-20 days + foam CNC 7-10 days + assembly + QC 5-8 days = 30-45 days total.

Payment: T/T 30% deposit + 70% before shipment. EXW Shenzhen / FOB Shenzhen / FOB Ningbo only (no DDP).

Brand compliance: KeXinMaterials (Guangdong) Co., Ltd. — source factory established 2014, 13,000 m2, 60+ machines, 20+ patents, 148 SKUs across 9 product lines. B2B export only, no retail.

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