Hard Protective Case vs Soft Padded Case: Which is Right for B2B?
B2B guide: hard-shell protective cases (PP/ABS/PC) vs soft padded cases (EVA foam + fabric). Protection level, cost, weight, applications.
Direct answer: Hard cases (PP/ABS/PC injection-molded) offer 10-100x better impact protection, IP67 waterproof rating, and 10+ year durability for USD 18-200/case. Soft cases (EVA foam + fabric) are 50-70% cheaper, 30-50% lighter, but offer only IP54 splash protection and 3-5 year lifespan. Choose hard case for: defense, medical, professional photo, MRO, field service. Choose soft case for: light travel, gym, casual photography, cost-sensitive consumer.
Protection Comparison
| Feature | Hard Case (Kexin) | Soft Padded Case |
|---|---|---|
| Impact resistance | 80-250 J/m (PP/ABS/PC) | 5-15 J/m (EVA + fabric) |
| IP rating | IP54-IP68 (Kexin) | IP54 splash only (most) |
| Drop test | MIL-STD-810H 26 drops from 1.2m | Not tested (or 1-3 drops) |
| Temperature range | -40°C to +120°C (PC) | -10°C to +40°C (fabric degrades) |
| UV resistance | 10+ years (UV-stabilized PP) | 2-3 years (fabric fades) |
| Waterproof | IP67-IP68 (Kexin 8系/9系) | No (water seeps through zippers) |
| Weight empty | 0.6-8.5 kg (depending on size) | 0.3-2 kg (50-70% lighter) |
| Lifespan | 10+ years | 3-5 years |
| Cost (mid-size 450mm) | USD 38-95 | USD 12-30 |
When to Use Hard Case
- Defense/military: MIL-STD-810H, IP67 required, radio/optical equipment
- Medical devices: FDA cleanroom, sterilization, IP65 minimum
- Professional photography: Camera bodies USD 5,000-50,000, lenses USD 1,000-10,000
- Drones (DJI Matrice, Mavic): USD 10,000-50,000 drone value
- MRO/industrial: Tools, measurement equipment, oil/chemical exposure
- Field service: Routers, switches, diagnostic equipment
- Aerospace: Vibration resistance, temperature stability
When to Use Soft Case
- Light travel: Air travel, hotel storage, occasional use
- Gym / sports: Lightweight, easy to carry, casual use
- Casual photography: Entry-level cameras (USD 200-1,000), point-and-shoot
- Cost-sensitive consumer: Promotional merchandise, giveaways
- Office documents: Lightweight files, papers, no need for waterproof
Cost Comparison (Mid-Size 450mm Case)
| Type | Price | Lifespan | Cost/year |
|---|---|---|---|
| Kexin 6系 ABS IP67 | USD 48 | 10+ years | USD 4.80/year |
| Kexin 8系 aluminium IP68 | USD 95 | 15+ years | USD 6.33/year |
| Soft padded (EVA + nylon) | USD 18 | 3-5 years | USD 4.50/year |
| Soft premium (EVA + Cordura) | USD 28 | 4-6 years | USD 5.60/year |
Cost per year is similar, but hard case has better protection and 2-3x longer life.
Weight Comparison (Empty, 450mm case)
- Kexin 6系 ABS: 2.5 kg
- Kexin 8系 aluminium: 4.0 kg
- Soft padded: 0.7-1.2 kg
- Soft premium: 1.0-1.5 kg
Soft cases are 2-3x lighter, which matters for daily-carry applications but not for shipping or storage.
FAQ
Can I use a hard case as checked airline luggage?
Yes. Kexin 6系/8系/9系 are TSA-compliant for checked luggage. Trolley series (9系/拉杆) is ideal for airline travel.
Do hard cases scratch easily?
ABS and PC scratch more easily than fabric. Kexin adds UV-stabilized surface coating that reduces visible scratches. For field service, expect 5-10 year cosmetic life with normal use.
Can I customize foam in both types?
Yes. Kexin offers custom foam inserts (PU 33/45/60 kg/m³) for both hard and soft cases. Soft case foam is typically pick-and-pluck pre-cut. Hard case foam is CNC water-jet cut for precision.
What about TSA locks for hard cases?
Standard. Kexin hard cases support padlock shackles up to 6mm. Compatible with TSA-approved padlocks (USD 10-15, not included).