Self-Locking Tray Box — Instant Auto-Lock Bottom for Fast Assembly and Secure Display

Qingdao Bejan Giant New Packaging Science & Technology Co., Ltd. is a professional manufacturer specializing in custom cardboard displays and retail packaging solutions for global brands. We provide factory-direct OEM and ODM services with flexible customization, premium printing, rigorous quality control, and reliable international export.

Manufactured from high-quality corrugated cardboard with a precision-engineered self-locking bottom mechanism and a flat tray structure, our Self-Locking Tray Boxes are widely used for retail product tray displays, point-of-purchase display stands, cosmetics and personal care merchandising, food and beverage product trays, and promotional gift sets. Every box features an auto-lock bottom — fold the tabs and they interlock automatically, forming a secure tray in seconds with no glue, tape, or extra steps. The flat tray top provides a stable platform for product placement, making it ideal for retail display, gift packaging, and product presentation. The self-locking bottom also allows the box to be pre-assembled at the factory and shipped flat or pre-locked, saving assembly time at the point of use.

Whether you need a display tray for a product launch or a self-locking package for retail-ready presentation, our experienced team can help you create boxes that lock together instantly and display products with confidence.

How Self-Locking Tray Boxes differ from other display box types: Tray Display Boxes use standard bottom construction that requires gluing or tucking. Slanted Surface Insert-Bottom and other display stands use fixed single-piece or inserted-bottom assembly. The Self-Locking Tray Box uses an automatic interlocking bottom mechanism — folding tabs lock into pre-scored slots when the bottom is pressed closed — forming a secure tray instantly without any adhesive or tools. This is distinct from the Buckle-Bottom Display Boxes (which require manually snapping a separate buckle) and from standard folding cartons (which are not designed for retail display). Choose Self-Locking Tray Boxes when you need the fastest assembly time, a display-grade flat tray platform, and a box that ships or stores flat and locks open automatically.

Why Choose Our Self-Locking Tray Boxes

Self-Locking Bottom — Instant Auto-Lock, No Adhesive Required

The defining feature is the precision-engineered interlocking bottom tabs.

Our design ensures:

• Folding tabs lock into pre-scored interlocking slots automatically

• No glue, tape, staples, or tools required

• Assembly in 1–2 seconds — fold and press

• Secure lock holds under normal product load

• Can be pre-locked at factory or assembled on-site

The result is a tray box that assembles faster than any glued or taped alternative — and locks as firmly.

Flat Tray Structure — Stable Platform for Product Display

The flat tray body provides a stable horizontal surface for product placement.

Our design ensures:

• Flat tray base for stable product placement

• Open top for easy product loading and display

• Available with or without dividers for product separation

• Multiple depth options for different product heights

• Reinforced walls for display-grade rigidity

The result is a tray display that holds products securely and presents them clearly.

Fast Assembly — Pre-Lock at Factory or On-Site

Designed for maximum assembly speed and flexibility.

Our engineering ensures:

• Ships flat for maximum efficiency — flat-pack shipping

• Pre-locking available at factory before shipment

• On-site assembly in 1–2 seconds per unit

• No skilled labor required — anyone can assemble

• High-volume assembly lines supported

The result is a tray box that eliminates assembly bottlenecks at your fulfillment center.

Premium Full-Body Branding

Every visible face — sides, front, and optional header — is a brand canvas.

Our printing ensures:

• CMYK full-color printing — up to 10 colors

• Pantone color matching for exact brand reproduction

• Full-surface coverage on all visible faces

• High-resolution brand imagery and messaging

• Custom header card or top label option

The result is a tray display that carries your complete brand identity.

Custom Tray Dimensions and Configurations

Every tray is engineered for your specific products.

Our customization ensures:

• Custom tray length, width, and depth

• Custom divider or compartment layout

• Custom material and flute type

• Custom printing and finishing

• Custom header card or display riser

Reinforced Construction for Display Durability

Built to perform on the retail floor.

Our construction ensures:

• 3-ply corrugated cardboard for strength

• Optional double-wall construction for heavier products

• Reinforced corners for stacking and display

• Self-locking bottom rated for product load

• Flat-pack shipping for cost efficiency

Eco-Friendly and Recyclable

Corrugated trays are a sustainable packaging solution.

Our sustainability ensures:

• 100% recyclable corrugated cardboard construction

• FSC-certified board upon request

• Biodegradable and compostable materials

• Eco-friendly printing and water-based inks

• No adhesive waste — cleaner assembly process

Fully Customized Design

Every Self-Locking Tray Box is manufactured according to your exact specifications.

Customization includes:

• Custom tray dimensions (length, width, depth)

• Custom self-locking bottom configuration

• Custom divider or compartment layout

• Custom paper material and flute type

• Custom printing and branding (up to 10 colors)

• Custom surface finishing

• Custom header card or top display riser

Custom Self-Locking Tray Box Options

Tray Configurations

Define the tray structure for your product.

Available configurations include:

• Standard Flat Tray (single compartment)

• Divided Tray (multiple product compartments)

• Deep Tray (taller sides for larger products)

• Wide Tray (large-format display tray)

• Nested Tray Set (multiple interlocking trays)

Self-Locking Bottom Types

Configure the interlocking bottom mechanism.

Available options include:

• Standard Auto-Lock (fold tabs into slots)

• Reinforced Auto-Lock (extra tab strength for heavier loads)

• Double-Wall Auto-Lock (for maximum strength)

• Anti-Slip Lock (enhanced grip to prevent accidental opening)

Corrugated Materials

Select the board type for your requirements.

Available materials include:

• E-Flute Corrugated (3mm, smooth surface, premium printing)

• B-Flute Corrugated (4.7mm, standard strength)

• C-Flute Corrugated (3.5mm, medium strength)

• Double-Wall Corrugated (for heavier products)

Paper Colors

Choose the base material color.

Available colors include:

• Natural Kraft (warm, rustic, eco-friendly)

• White (clean, premium, high-contrast print)

• Black (bold, modern, luxury feel)

• Custom Color (per your specification)

Printing Options

Advanced printing delivers exceptional brand impact.

Printing options include:

• CMYK Full-Color Printing (up to 10 colors)

• Pantone Color Matching

• Full-Surface Coverage (sides, front, bottom)

• High-Resolution Brand Imagery

• Variable Data Printing

Surface Finishing

Create a tray box with premium retail presence.

Available finishing techniques include:

• Gloss Lamination

• Matte Lamination

• Soft Touch Coating

• Spot UV

• Varnish

Self-Locking Tray Box Applications

Retail Product Tray Displays

Self-locking trays are ideal for retail product presentation.