Product Video
Corrugated Mailer Envelope
Ship smarter, not heavier. Our Corrugated Mailer Envelope delivers professional protection at a fraction of the cost—perfect for documents, samples, and small items that don't need bulky boxes. The self-adhesive closure means faster packing and fewer headaches.
Cut shipping costs by up to 40% without sacrificing quality or presentation.
$0.20 - $1.00 / pc
FOB China Port · Price varies by size, material & quantity
Quote within 24 hours · Free design consultation
Supply Chain Certification Support
Get Your Sample Service Today!
Plain samples FREE (shipping only) · Custom printed samples $50-150, 100% refundable on bulk order
Request Sample ServiceTechnical Specifications
| Parameter | Value |
|---|---|
| Material | Corrugated Cardboard (E/B Flute) |
| Face Paper | White/Kraft Cardboard (120-200gsm) |
| Bursting Strength | E Flute: 4-6 kgf/cm² | B Flute: 6-8 kgf/cm² |
| Edge Crush Test (ECT) | E Flute: 2-3 kN/m | B Flute: 3-4 kN/m |
| Closure Type | Self-Adhesive Strip (Peel & Seal) |
| Printing | CMYK Full-color / Pantone Spot Color / Flexographic |
| Surface Finishing | Gloss/Matte Lamination, UV Coating |
| MOQ | 500 pieces |
| Lead Time | Standard: 7-12 business days | Rush: 5-7 days (+15% surcharge) |
| Weight Capacity | E Flute: 1-3kg | B Flute: 2-5kg |
| Packaging | Flat-packed, 50pcs/bundle, 500pcs/carton |
How to Choose the Right Flute: E-flute for lightweight items and better print quality, B-flute for slightly heavier items and better cushioning.
| Flute Type | Thickness | Best For | Print Quality |
|---|---|---|---|
| E Flute | 1.5-2mm | Documents, Photos, Small Accessories | Excellent |
| B Flute | 2-3mm | Small Products, Samples, Parts | Good |
Note: Weight capacity depends on envelope dimensions. Contact us for specific recommendations.
Quick reference for commonly requested envelope sizes. Custom sizes available upon request.
| Dimensions (L×W×H) | Typical Products | Flute Suggestion |
|---|---|---|
| 180×120×30 mm | Documents, Photos, Cards | E Flute |
| 220×160×40 mm | Small Electronics, Accessories | E Flute |
| 260×180×50 mm | Books, Catalogs, Samples | E/B Flute |
| 300×220×60 mm | Multiple Items, Small Products | B Flute |
| 350×250×70 mm | Larger Documents, Product Samples | B Flute |
| 400×300×80 mm | Large Format Items, Bulk Samples | B Flute |
Common Mistakes to Avoid
Wrong Size Selection
Key Consideration: Ordering envelopes too small for products.
Tip: Add 10-15mm buffer on each side for easy insertion and protection.
Overloading Capacity
Key Consideration: Exceeding weight limit causes envelope failure.
Tip: Stay within 1-3kg for E-flute, 2-5kg for B-flute envelopes.
Ignoring Adhesive Quality
Key Consideration: Cheap adhesive leads to packages popping open.
Tip: Our premium adhesive strip is tested to 500g peel force—request a sample to test.
Skipping Protective Inserts
Key Consideration: Fragile items get damaged during transit.
Tip: Add bubble wrap or foam inserts for delicate products—we can source these for you.
Proven ROI Impact
Data source: Packaging industry studies + EcoPacki customer feedback
Lightweight design means lower dimensional weight charges—especially for air freight.
Self-adhesive closure eliminates taping—peel, seal, done. No tape guns needed.
Flat-pack design maximizes warehouse space—500 envelopes fit in one compact carton.
Professional appearance and secure delivery mean happier customers and fewer returns.
Product Gallery
Product Details
Material Quality
Material Quality
Finishing Options
Custom Inserts
Production Process
Factory Production Video
Shipping & Packaging
200 units per carton. Reinforced packaging ensures safe international delivery.
500 units per carton. Flat-packed for efficient storage and shipping.
Supply Chain Capabilities
Daily Capacity
80,000+ pieces/day — High-volume production means your large orders ship on time, every time.
Clients Served
500+ B2B clients — From startups to Fortune 500 companies, we scale with your business.
Global Export
80+ countries — We handle customs documentation and ship to any port worldwide.
24/7 Support
24-hour response — Dedicated account manager for your account, not a call center.
Why Choose EcoPacki
See how EcoPacki stands out from other packaging suppliers.
| Feature | EcoPacki | Others |
|---|---|---|
| Self-Adhesive Closure | Premium Strip | Basic or none |
| Free Plain Samples | Yes (shipping applies) | Charge for samples |
| Sample Refund | 100% refundable | Often not refundable |
| Response Time | Within 24 hours | 2-5 business days |
| Design Consultation | Free expert advice | Extra charge or none |
| Quality Assurance | Quality Assured | Varies significantly |
| MOQ Flexibility | From 500 pcs | Often 1000+ pcs |
| Global Shipping | 80+ countries | Limited regions |
Perfect For
Professional presentation that protects what matters—without the weight or cost of traditional boxes.
FAQ
✅ Free dieline templates — We provide accurate files for your designer
✅ Free design consultation — Material selection, printing advice, structural tips
✅ Free artwork review — We check bleed, resolution, color mode before production
For custom structural design (new shapes, special features), a fee of $100-300 applies — fully refundable when you confirm your bulk order.
✅ Report within 7 days — Send photos/videos of the issue
✅ Our guarantee — Production errors? We replace or refund, no questions
✅ Prevention — We send inspection photos before shipping and can arrange third-party inspection (SGS, Intertek)
Our defect rate is under 1%, but if something slips through, we make it right.
B-flute (2-3mm) – Better cushioning for items 2-5kg. Ideal for products needing extra protection.
Contact us for recommendations based on your product.
🎁 New Customer Offer
First-time customers get exclusive benefits:
Sample Service
Plain sample + shipping applies
5% Off
First bulk order discount
Free Design Help
Dieline + Artwork review
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
Adhesive Test
Seal strength, peel force, consistency
Final Packaging
Bundle count, carton protection, labeling
How to Order
From inquiry to delivery — your complete ordering timeline
Inquiry & Quote
Submit specs → Quote within 24h
Design Confirm
Artwork review & dieline approval
Sample
Pre-production sample (3-5 days)
Production
30% deposit → 7-12 days production
QC & Ship
Inspection photos → 70% balance → Ship
Total timeline: ~3-6 weeks (inquiry to delivery, sea freight) | ~2-3 weeks (air freight)