Material comparison · Trolley HD ↔ Premium

WL9-3221 vs WL8-3514

Name: WL9-3221 – Hard-shell Trolley PP case WL9-3221: outer 323*243*212mm, inner 300*200*200mm, wall 5mm. OEM custom foam, logo and color from 500-piece MOQ.
Brand: Kexin OEM Case
SKU: WL9-3221
Availability: MadeToOrder
Rating: 4.6 (32 reviews)

Material comparison: WL9-3221 (Engineering PP, 323×243×212mm) vs WL8-3514 (PP, 345×290×135mm). PP offers better chemical resistance and recyclability, ABS delivers higher rigidity and high-gloss finish. Both OEM/ODM from 500 pieces.

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WL9-3221

Trolley HD · PP

Hard-shell Trolley PP case WL9-3221: outer 323*243*212mm, inner 300*200*200mm, wall 5mm. OEM custom foam, logo and color from 500-piece MOQ.

Series	Trolley HD
Material	PP
Outer dimensions	323×243×212mm
Weight	1230g
Lead time	30–45 days
Minimum order quantity	500 pieces

✓ WL9-3221 advantages

Larger internal volume for bulkier gear

View product → WL9-3221

VS

WL8-3514

Premium · PP

Hard-shell Premium PP case WL8-3514: outer 345*290*135mm, inner 315*235*122mm, wall 4.9mm. OEM custom foam, logo and color from 500-piece MOQ.

Series	Premium
Material	PP
Outer dimensions	345×290×135mm
Weight	—
Lead time	30–45 days
Minimum order quantity	500 pieces

✓ WL8-3514 advantages

More compact – easier to carry
PP: high chemical and temperature resistance

View product → WL8-3514

Side-by-side specifications

	WL9-3221	WL8-3514
Series	Trolley HD	Premium
Material	PP	PP
Outer dimensions	323×243×212mm	345×290×135mm
Inner dimensions	300200200mm	315235122mm
Weight	1230g	—
Lead time	30–45 days	30–45 days
Minimum order quantity	500	500
Certificates	CE / RoHS / REACH / ISO 9001 / BSCI	CE / RoHS / REACH / ISO 9001 / BSCI

Summary

This comparison page analyzes WL9-3221 and WL8-3514 from the Kexin range. Both are OEM/ODM protective cases made of PP, manufactured in our Guangdong source factory (12,000 m², BSCI audited, ISO 9001:2015). MOQ from 500 pieces, lead time 30–45 days, EXW Guangdong or FOB Shenzhen/Ningbo. Certificates: CE, RoHS 2/3, REACH, ISO 9001, BSCI. Custom foam insert, Pantone colour and logo from 500 pieces. Kexin is a B2B protective case manufacturer since 2010, exporting to 30+ countries. This comparison helps B2B buyers (importers, wholesalers, brands, industrial OEMs) make the right choice for their application. Contact: [email protected] or +86 135 9055 5309.

Comparison data at a glance

Model A: WL9-3221 (Trolley HD, PP) — 323×243×212mm — 1230g
Model B: WL8-3514 (Premium, PP) — 345×290×135mm — —
Common: MOQ 500, Lead time 30–45 days, CE/RoHS/REACH/ISO 9001/BSCI, EXW Guangdong oder FOB Shenzhen/Ningbo
Customizable: Logo, Pantone colour, foam insert, tooling
B2B service: OEM/ODM 7-Schritte-Prozess, kostenlose DFM-Review, technische Unterstützung DE/EN/ZH/FR

FAQ

WL9-3221 or WL8-3514 – which is more rugged?

Both have wall thickness ≥2mm and CE/RoHS/REACH/ISO 9001 certified. WL9-3221 weighs 1230g, WL8-3514 weighs —. For heavier gear we recommend the model with thicker wall.

Can I order WL9-3221 and WL8-3514 with the same logo?

Yes, both use identical logo processes: silkscreen, hot-stamp, or laser engraving. Pantone colour from 500-piece MOQ for both.

What is the lead time for both models?

30–45 days after artwork approval for OEM/ODM. factory-direct 3–7 day delivery to DE/EU. Sample from factory-direct in 3–5 days.