Product Video
Type C Premium Mailer Box | Heavy-Duty E-commerce Shipping
Premium Quality Heavy-Duty Shipping Mailer Box for E-commerce Our Type C Premium Mailer Boxes combine stunning dual-sided printing with durable corrugated construction. The distinctive fold-lock mechanism provides easy, tool-free assembly while showcasing your brand on both inside and outside surfaces. Why Brands Choose Type C Premium Mailer Boxes: ✓ Dual-Sided Printing — Stunning artwork on both inside and outside surfaces ✓ Reinforced Bottom — Quick 10-second assembly, no glue or tape needed ✓ Fold-Flat Shipping — Reduces storage and shipping costs significantly ✓ Versatile Applications — Perfect for e-commerce, subscription boxes, retail, and DTC brands ✓ Custom Logo Printing — Offset and flexo printing with premium finishing options ✓ Flexible MOQ — Low minimums to test designs before scaling Ideal for e-commerce shipping, subscription boxes, retail packaging, and direct-to-consumer brands seeking premium packaging with maximum brand impact.
Versatile dual-sided design appeals to brands seeking premium unboxing experiences, perfect for seasonal promotions and luxury product presentations.
Customized Pricing
FOB China Port ? Price varies by size, material & quantity
Get your quote in 24 hours + Free design consultation
Supply Chain Certification Support
Technical Specifications
| Parameter | Value |
|---|---|
| Material | Corrugated Cardboard (E/B/BE/EE Flute) |
| Face Paper | White/Black/Grey Cardboard |
| Bursting Strength | E Flute: 4-8 kgf/cm2 | B Flute: 6-10 kgf/cm2 | BE Flute: 10-14 kgf/cm2 |
| Edge Crush Test (ECT) | E Flute: 2-4 kN/m | B Flute: 3-5 kN/m | BE/EE Flute: 5-8 kN/m |
| Printing | CMYK Full-color / Pantone Spot Color / Screen Printing (up to 1440dpi) |
| Surface Finishing | Gloss/Matte Lamination, UV Coating, Foil Stamping, Embossing |
| MOQ | 500 pieces |
| Lead Time | Standard: 12-18 business days | Expedited available |
| Weight Capacity | E Flute: 3-5kg | B Flute: 5-8kg | BE Flute: 8-12kg | EE Flute: 6-10kg |
| Packaging | Flat-packed, 25pcs/bundle, 200pcs/carton |
How to Choose the Right Flute: E-flute for premium print quality, B-flute for balanced protection, C-flute for standard shipping, BE-flute for heavy-duty export, EE-flute for extra smooth printing surface.
| Flute Type | Thickness | Best For | Print Quality |
|---|---|---|---|
| E Flute | 1.5-2mm | Electronics, Cosmetics, Jewelry | Excellent |
| B Flute | 2-3mm | E-commerce, Clothing, Accessories | Good |
| C Flute | 3.5-4mm | Standard shipping, General products | Good |
| BE Flute | 5-6mm | Heavy duty, Export, Fragile items | Good |
| EE Flute | 3-4mm | Extra smooth surface, Premium printing | Excellent |
Note: Weight capacity depends on box dimensions and construction. Contact us for specific recommendations.
Quick reference for commonly requested sizes. Custom sizes available upon request.
| Dimensions (L×W×H) | Typical Products | Flute Suggestion |
|---|---|---|
| 200×150×80 mm | Cosmetics, Jewelry, Small Gifts | E Flute |
| 250×180×100 mm | Smartphone Cases, Accessories | E Flute |
| 300×200×120 mm | Tablets, Books, Clothing | B/BE Flute |
| 350×250×150 mm | Electronics, Multiple Items | BE Flute |
| 400×300×180 mm | Heavy Items, Bulk Products | BE/EE Flute |
| 450×350×200 mm | Premium Gifts, Large Items | EE Flute |
Common Mistakes to Avoid
Incorrect Flute Selection
Key Consideration: Using the wrong flute type can cause box collapse or poor print quality.
Tip: Request a sample to verify flute strength before bulk production.
Incorrect Fold Score
Key Consideration: Improper scoring causes cracking or uneven folds.
Tip: Request test folds before bulk production.
Overfilling Assembled Box
Key Consideration: fold-flat boxes have weight limits when assembled.
Tip: Specify product weight for reinforced corner option.
Storage in Humid Conditions
Key Consideration: Flat storage in damp conditions may affect adhesive.
Tip: Store in dry environment, consider moisture-resistant coating.
Pricing
Packaging Collections
Material Selection Guide
Choose the right materials for your packaging needs
📦Base Board (9 Options)
| Category | Available Materials |
|---|---|
| Paperboard | Corrugated Board / Greyboard / White Board / Black Board / Kraft Board / White-lined Chipboard / White-top Chipboard / Honeycomb Board / MDF Board |
🎨Surface Paper (15 Options)
| Category | Available Materials |
|---|---|
| Paper | Coated Paper / Offset Paper / Kraft Paper / Metallic Paper (Gold/Silver) / Pearl Paper / Touch Paper / Leatherette Paper / Art Paper / Cotton Rag Paper / Recycled Paper / Aluminum Foil Paper / Tracing Paper / Copy Paper / Glassine Paper / Holographic Paper |
🧵Surface Material (15 Options)
| Category | Available Materials |
|---|---|
| Fabric & Leather | Flannel / Leather / PU Leather / Genuine Leather / Vegan Leather / Linen / Canvas / Cotton Cloth / Silk / Non-woven Fabric / Oxford Cloth / Nylon / Polyester / Suede |
🛡️Interior Lining & Cushioning (25 Options)
| Category | Available Materials |
|---|---|
| Foam & Plastic | EVA Foam / Sponge / Pearl Cotton (EPE) / EPS Foam / XPS Foam / PU Foam / Molded Pulp / Blister Packaging (PVC / PET) / Plastic Tray |
| Paper-based | Greyboard Insert / Cardstock Insert / Folded Paper Insert / Corrugated Divider / Corrugated Roll / Honeycomb Board Insert |
| Fabric | Velvet Lining / Flannel Lining / Non-woven Bag |
| Bags & Fillers | OPP Bag / PE Bag / Cotton Bag / Linen Bag / Air Bubble Film / Air Column / Inflatable Bag / Paper Crinkle Fill |
💡 Need help customizing?
Need help customizing the material combinations for your specific product? Just share your product type and use case — I'll recommend the best pairing.
Finishing Options
Production Process
Factory Production Video
Shipping & Packaging
200 units per carton. Reinforced packaging ensures safe international delivery.
Supply Chain Capabilities
Daily Capacity
50,000+ pieces per day. Scale production to meet your demands.
Clients Served
500+ B2B clients worldwide. Trusted by global brands.
Global Export
Exported to 80+ countries. Reliable international shipping.
24/7 Support
2-hour response guaranteed. Dedicated account manager.
Why Choose EcoPacki
See how EcoPacki stands out from other packaging suppliers.
| Feature | EcoPacki | Others |
|---|---|---|
| fold-flat Design | Yes (Space Saving) | Fixed shape only |
| Free Plain Samples | Yes (shipping applies) | Charge for samples |
| Sample Refund | 100% refundable | Often not refundable |
| Response Time | 24 hours | 2-5 business days |
| Design Consultation | Free expert advice | Extra charge or none |
| Quality Assurance | Quality Assured | Varies significantly |
| MOQ Flexibility | From 200+ pcs | Often 1000+ pcs |
| Global Shipping | 80+ countries | Limited regions |
Perfect For
FAQ
✅ Free Dieline Templates: We provide accurate dieline files for your designer to work with
✅ Design Consultation: Our team can advise on structural design, material selection, and printing techniques
✅ Artwork Review: We check your files for potential issues before production (bleed, resolution, color mode)
For custom structural design, a design fee of $100-300 may apply, which is refundable upon bulk order confirmation. Contact us to discuss your design needs!
✅ Report within 7 days: Contact us immediately with photos/videos of the issue
✅ Our guarantee: If the issue is due to our production error, we will replace the defective products at our cost, OR provide a full or partial refund
✅ Quality documentation: We provide inspection reports and can arrange third-party inspection (SGS, Intertek) before shipment
✅ Prevention: We send photos of finished products and conduct final inspections before shipping
For minor issues that don't affect functionality, we offer discount compensation. Our less than 1% defect rate reflects our commitment to quality.
🎁 New Customer Offer
First-time customers get exclusive benefits:
Sample Available
Contact for details
Bulk Discount
Special pricing for first order
Free Dieline
+ Design artwork suggestions
Quality Control Process
Every order goes through our rigorous 5-step quality inspection
Raw Material Test
Paper weight, thickness, burst strength
Printing Check
Color accuracy, registration, coverage
Die-Cut Inspection
Dimensions, clean cuts, proper scoring
Assembly Test
Easy fold, secure closure, structural integrity
Final Packaging
Bundle count, carton protection, labeling
From inquiry to delivery — your complete ordering timeline
→ Quote within 24h
& dieline approval
sample (3-5 days)
15-20 working days
Balance & ship
Total timeline: ~4-7 weeks (sea freight) | ~3-4 weeks (air freight)