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Auto lock mailer boxes feature a smart self-locking base design that automatically snaps into place during assembly. Combined with F/E/B/EE/BE flute corrugated construction and 200-350gsm laminated paper surface, these boxes offer exceptional protection with a premium look. Perfect for e-commerce, subscription boxes, and retail shipping.
Space-saving fold-flat design reduces storage and shipping costs by up to 60%.
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
Structure
F/E/B/EE/BE flute corrugated + laminated surface. Auto-lock mechanism provides secure closure without tape or glue.
Surface Material
200-350gsm White/Grey/Black/Kraft/Coated. Custom surface materials available for brand-specific requirements.
Closure
Auto-lock base + tuck-in flap. No adhesive required - saves packaging time and reduces material costs.
Folded Profile
Customized based on flute type. Space-efficient design for storage and shipping.
Load Capacity
Customized based on flute type and box size. Consult with our team for load recommendations.
Printing
CMYK, Pantone, Screen (200 LPI). Full-color branding with vibrant color reproduction. Custom print area available - discuss your branding needs.
Finishing
Gloss/Matte Lamination, Gold/Silver Foil, Spot UV, Soft-Touch. Enhances visual appeal and provides extra protection.
MOQ
500-1000 pieces per design. Sample orders of 10-50 pieces available for quality verification before bulk production.
Lead Time
Customized based on order quantity. Rush service available upon request.
Packaging
Flat-packed for shipping efficiency. Customized per order. Sea freight recommended for cost savings on large orders.
Gloss Lamination
High-shine reflective finish for vibrant colors and premium look.
Matte Lamination
Soft-touch elegant finish with anti-scratch properties.
Foil Stamping
Gold, silver, or metallic foil for luxury branding effects.
Spot UV
Highlight specific areas with glossy UV coating contrast.
Soft-Touch
Velvety texture for ultra-premium unboxing experience.
Quick reference for commonly requested sizes. Custom sizes available upon request.
Customized
Cosmetics, Accessories, Small Gifts
Customized
Clothing, Apparel, Small Electronics
Customized
Shoes, Books, Larger Products
Customized
Subscription Boxes, Multiple Items
Customized
Heavy Items, Bulk Products
Customized
Premium Retail, Large Items
Common Mistakes to Avoid
Wrong Flute Selection
Key Consideration: F flute is thinnest (0.8mm) for lightweight items; E flute (1.2mm) offers balance; B flute (2.5mm) provides maximum strength.
Tip: F/E for cosmetics and accessories, B for clothing and heavier products, EE/EB for industrial applications.
Insufficient Surface Weight
Key Consideration: 200gsm may be too thin for large boxes; 350gsm adds cost unnecessarily for small boxes.
Tip: Match surface weight to box size: small boxes 200-250gsm, medium 250-300gsm, large 300-350gsm.
Ignoring Humidity Resistance
Key Consideration: Corrugated boxes absorb moisture, losing rigidity in humid conditions.
Tip: Request moisture-resistant coating or laminated surface for marine/humid destinations.
Underestimating Stack Load
Key Consideration: Auto-lock boxes have weight limits when stacked in transit.
Tip: Specify maximum stack height and weight; consider reinforced auto-lock or double-wall construction.
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
Customized packaging based on order size. Reinforced packaging ensures safe international delivery.
Supply Chain Capabilities
Daily Capacity
Customized production capacity. 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 |
|---|---|---|
| Flute Options | F/E/B/EE/BE + combinations | Single flute 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 500-1000 pcs | Often 1000+ pcs |
| Global Shipping | 80+ countries | Limited regions |
Perfect For
Frequently Asked Questions
What materials are used for auto lock mailer boxes?
Auto lock mailer boxes are made from F/E/B/EE/BE flute corrugated cardboard with a surface layer of 200-350gsm laminated paper (white card, grey board, black card, kraft, or coated paper). The auto-lock base uses interlocking tabs for tool-free assembly.
What is the difference between B, E, and F flute?
B flute (approx. 3mm) offers excellent compression strength, ideal for heavy products. E flute (approx. 1.5mm) is thinner with a premium flat surface, perfect for lightweight items. F flute (approx. 0.8mm) is micro-flute for ultra-premium surface quality. E+B or B+F combinations offer heavy-duty protection with good surface quality.
What is the weight capacity of auto lock mailer boxes?
Load capacity varies by flute type: F flute (thinnest) supports up to 3kg, E flute up to 5kg, B flute up to 10kg, and EE/BE double-wall up to 15kg. For heavy items, we recommend B flute or E+B construction with reinforced auto-lock corners.
How does the auto-lock mechanism work?
The auto-lock base features interlocking tabs and slots pre-cut into the corrugated board. When you fold the sides inward, the tabs automatically snap into locking slots, creating a secure base without tape or glue. The top closure uses a standard tuck-in flap design.
What printing and finishing options are available?
We offer offset printing, flexographic printing, embossing/debossing, foil stamping (gold/silver), spot UV, soft-touch lamination, and matte/gloss lamination on the surface paper layer for premium appearance.
What is the minimum order quantity?
MOQ is 500-1000 pieces for standard sizes. For custom flute/material combinations, MOQ starts at 1,000 pieces. Sample orders of 5-10 pieces are available for quality assessment.
Can auto lock mailer boxes be customized with logos?
Yes, we offer custom logo printing via offset or flexographic printing. The laminated surface provides excellent printability for sharp, vibrant branding. Embossing, debossing, and foil stamping are available for premium effects.
What industries use auto lock mailer boxes?
Auto lock mailer boxes are popular for e-commerce, subscription services, apparel, footwear, cosmetics, electronics accessories, books, gourmet food, and Premium Retail packaging.
Are auto lock mailer boxes eco-friendly?
Yes, corrugated cardboard and paper are recyclable. We use water-based inks and offer FSC-compliant materials upon request. Biodegradable and compostable surface options are available.
What is the production lead time?
Production lead time varies by order quantity. Contact us for specific timelines. Expedited service available upon request.
New Customer Offer
First-time customers get exclusive benefits:
Sample Discount
Contact for pricing
Bulk Discount
First bulk order discount
Free Dieline
Free artwork assistance