Interactive 3D

1 / 3

EVF41002

Unglued Tongue-Lock Retail Tray

Available in a wide range of custom configurations & material selection.
Order 1 sample. Or order 100K+ units. Or anything in between.
Affordable delivery across North America.
Design support, warehousing, testing, assembly available.
Widest machinery capability in America via 30+ specialist partner plants.

Get pricing

Free white-glove consultations. Blazing-fast response time. Fast quotes.

Product details

Top highlights

Assembles by hand without adhesive
Clean interior rim with hidden corner flaps
Delivered flat to maximize storage density

About this product

The EVF41002 is a folding carton tray that locks together through friction and paperboard tabs, avoiding the need for adhesive. Designed for clean retail presentation, the end walls fold over to trap the corners, snapping semi-circular tongue tabs into receiving slots on the side walls.

Because it relies on a multi-step manual fold, this tray is often chosen for hand-packing stations, lightweight kitting, and retail environments where a clean, glue-free interior is prioritized over high-speed automated assembly.

Common uses

Retail apparel
Bakery
Lightweight kitting
Cosmetics

Get a quote

Share what you know. We'll take it from there. Or email us at info@herculeindustrial.com

Describe your project *

Approximate quantity *

Size if known

Files or competing quote (optional)Drag files here or choose filesAdd drawings, photos, dielines, quotes, specs, or other useful files.Max 5 files, 25 MB total.

Name *

Email *

Phone

Optional

More details

You can skip this whole part, or open a section and answer only what you know.

Size and quantity

Detailed dimensions

Units US customary (inches)Metric

What do your dimensions describe?

Length

Width

Height

Size notes

Quantity notes

Materials and print

Paperboard preference

Add details for paperboard preference

Paperboard details

Print and artwork

Add details for print and artwork

Print, finish, or artwork details

Shipping or storage context

Custom changes or unusual needs

How will this tray be used?

Will this tray be shipped inside another box?

Do you need custom inserts to hold items in place?

Current box or specs

Do you have a current box, spec, or target sample?

Add details for do you have a current box, spec, or target sample?

Current box, known specs, or current problem

Destination ZIP or region

Company

Any deadline or timing constraint?

Retail and Presentation Packing

Apparel and lightweight retail goods

The unglued construction leaves a clean interior without visible adhesive seams. The inner end walls fold over to form a smooth rim, making it a strong choice for presenting clothing, accessories, or soft goods where the unboxing experience matters.

In-plant kitting and assembly

Because the tray is delivered flat and assembles without machinery, it works well for manual kitting lines. Packers can fold and lock the trays on demand, keeping the packing station clear of bulky pre-glued boxes.

Bakery and confectionery presentation

The lack of glue seams and the smooth folded edges provide a clean presentation surface for baked goods or wrapped confections, especially when paired with a food-safe board.

Cosmetic and personal care gift sets

When used with custom inserts, the rigid double-wall ends and clean interior make this tray a practical base for lightweight cosmetic kits and promotional bundles.

Fulfillment and Store-Floor Setup

Hand-packing operations

This tray relies on manual assembly. The packer folds the side walls, tucks the dust flaps, folds the end walls over, and snaps the tongue tabs into their slots. It is useful for low-to-medium volume runs where hand packing is already part of the workflow.

Retail store-floor setup

For retail environments with limited back-room space, these trays arrive flat and can be assembled by store staff as needed for displays or gift wrapping.

Promotional and trial runs

Because it avoids the setup time associated with folder-gluer lines, this unglued tray can be a practical choice for short-run promotional packaging or market testing.

When to Consider Glued or Roll-End Trays

High-volume automated packing

If your packing line uses automated tray erectors or folder-gluers, this manual tongue-lock tray may slow down production. Compare it to a common four-corner glued tray, which can be erected quickly by machine.

Heavy or dense products

The single-ply side walls and friction locks are designed for lightweight goods. If the tray will hold heavy components that might cause the side walls to bow and release the tabs, a glued double-wall tray or a corrugated tray is often a safer choice.

Board Choice and Packing Route

Board thickness and fold memory

The inner end walls fold 180 degrees to trap the corners and engage the locks. Heavy or rigid boards may crack along this fold or resist staying flat, putting tension on the tongue tabs. Folding boxboard (FBB) usually provides a good balance of clean folding and locking strength.

Interior printing

Because the inner end walls fold over from the outside, a single-sided print run will display graphics on both the exterior of the tray and the interior end-wall rims. This allows for creative branding without the cost of two-sided printing.

Packing line speed versus setup

Evaluate the trade-off between the flat-delivery convenience of an unglued tray and the labor time required to fold and lock each unit by hand. For larger programs, a pre-glued tray might reduce overall packing costs.

Outer shipping requirements

This is an open presentation tray, not a shipping carton. For parcel or courier delivery, the loaded tray usually needs to be placed inside a master shipper, a mailer box, or a protective sleeve to keep the contents secure and the locks engaged.

Locking Tab and Slot Adjustments

Tab and slot clearance

The semi-circular tongue tabs and their receiving slots are matched to the board thickness. If you change the material grade after prototyping, the template and cutting profile should be adjusted to ensure the tabs snap in securely without tearing the side walls.

Wall height and proportion

The height of the side and end walls can be adjusted to fit the product, but very shallow trays may leave too little room for the locking tabs to engage effectively.

Dust flap chamfers

The angles on the corner dust flaps can be modified to prevent binding when the end walls fold over them, ensuring a clean, square corner.

Packing details

Prototyping the lock

Always test a physical sample with the exact board grade intended for production. This confirms that the tongue tabs hold securely and that the 180-degree fold does not crack the material.

Additional notes

Tab tear resistance

The entire tray relies on the semi-circular tabs staying seated in their slots. If the board is too thin or the product is packed too tightly, outward pressure can tear the tabs or cause the tray to splay open.

FAQs

Does this tray need adhesive to stay together?

The tray uses a mechanical tongue-and-slot system instead of adhesive. The end walls fold over the corner flaps, and paperboard tabs snap into cutouts on the side walls to lock the shape in place.

Can this tray be erected by automated machinery?

The multi-step folding sequence and the precise insertion of the locking tabs are designed for manual handling. It is generally used at hand-packing stations rather than on automated tray erectors.

What board types work well for this tray?

Folding boxboard (FBB) is often a good fit. The board should be pliable enough to handle a 180-degree fold on the end walls without cracking, while remaining stiff enough to keep the locking tabs securely in their slots.

Will the inside of the tray be blank if I only print one side?

The base and side walls will show the unprinted side of the board. However, because the end walls fold over from the outside, your exterior graphics will be visible on the interior end-wall rims.

Can I ship this tray directly in the mail?

It is an open-top presentation tray. To ship it through a courier network, it typically needs to be packed inside a corrugated mailer or a master shipping box.

Why is a physical sample important for this tray?

A sample confirms that the tongue tabs fit securely into the side-wall slots using your chosen board material. It also allows your packing team to test the manual assembly time before committing to a full production run.

How does board thickness affect the locking tabs?

The size of the receiving slots and the tongue tabs are calculated based on the board thickness. If the board is too thick, the tabs may not fit; if it is too thin, the locks may slip out.

Can I use this tray for heavy industrial parts?

This tray is generally intended for lightweight retail goods. Heavy items can cause the single-ply side walls to bow outward, which may pull the locking slots away from the tabs and cause the tray to open.