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ECMA B15.06.00.60

Self-Locking Tray with Closed-Corner Lid

  • 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.
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Product details

Top highlights

  • Unglued mechanical claw-lock assembly
  • Fully enclosed lid with dust flaps and corner tabs
  • Optimized for automated tray-forming machinery

About this product

This unglued folding carton ships flat and forms a clean, single-wall tray with a fully attached lid. The base uses mechanical claw locks that snap into the side walls, while the lid features extended dust flaps and front corner tabs to completely enclose the product.

Because it uses no glue, the carton offers a premium, uninterrupted presentation for bakery goods, confectionery, and lightweight retail items. While it can be assembled by hand, the claw-lock mechanism is well-suited for automated plunger-and-cavity forming equipment.

Common uses

  • Bakery and pastry packaging
  • Confectionery assortments
  • Lightweight cosmetics or retail kits
  • Fast food and takeout

Get a quote

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

Best Price Guarantee

Already have a packaging quote? Let us beat it.

Send us the quote you have. We will beat it for the same specifications, quantity, and delivery requirements.

Upload a competing quote

Free quote review. No obligation.

30+specialist partner plants

We supply through the plant best suited to your price, material, production, and delivery requirements.

Why we can beat a lower quote

30+ plants give us more ways to lower the price.

Each plant has different machinery, material costs, order minimums, and freight rates. Our buying volume helps us secure better pricing. We then quote through the plant that gives you the lowest total price for your requirements.

Send us your current quote. Watch us beat it.

Attach it to the quote form or email it to us. We'll review it free and send you our price.

Upload a competing quoteinfo@herculeindustrial.com
Best Price Guarantee terms

To qualify, send a written supplier quote dated within the past 30 days and addressed to your company. It must cover the same dimensions, construction, material, print, finish, quantity, tooling, freight, delivery date, and delivery location. The guarantee does not cover taxes, expired quotes, liquidation or clearance sales, or obvious pricing errors.

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Retail and Food Presentation

Bakery and Confectionery

The unglued construction keeps the interior free of adhesives, making it a clean choice for pastries, cakes, and sweets. The closed-corner lid prevents dust ingress and keeps the contents secure on the retail shelf.

Lightweight Retail Kits

For cosmetics, apparel accessories, or small gift sets, the flat-shipping design saves warehouse space while providing a premium unboxing experience once assembled.

Fast Food and Takeout

When formed by automated machinery, this tray provides a quick, secure container for takeout meals. The closed corners help retain heat and prevent small items from spilling.

Apparel Accessories

Belts, ties, and scarves benefit from the clean interior and fully enclosed presentation, offering a boutique feel without the need for glued seams.

Packing Operations and Fulfillment

Automated Packing Lines

This carton is built primarily for automated erection. A plunger pushes the flat blank into a forming cavity, snapping all four claw locks into place simultaneously for high-speed packing.

Manual Store-Floor Assembly

While it can be folded by hand for low-volume runs or in-store bakery use, manually seating the four individual claw locks takes more time than popping open a pre-glued crash-lock box.

Flat-Shipped Inventory Storage

Because the carton is entirely unglued, it ships and stores completely flat. This maximizes pallet density and reduces warehouse footprint for high-volume retail operations.

When to Consider Glued or Simpler Trays

High-volume manual packing

If your team is assembling thousands of boxes by hand, the claw locks will slow down fulfillment. Compare this to a glued tray or a crash-lock base that sets up in one motion.

Heavy or stacked products

The four single walls can buckle under heavy top loads. If you are packing dense items or stacking pallets high, consider a double-wall tray or a corrugated shipper.

Board, Fit, and Assembly Choices

Board Thickness and Lock Fit

The claw tabs and receiving slits should be matched to your chosen board thickness. Normal folding boxboard works exceptionally well, but switching to a thicker micro-flute corrugated board often needs redesigning the locks to prevent tearing.

Outer Packaging for Shipping

The friction-tuck lid suits retail display and direct hand-offs. If this carton will be shipped through a parcel network, it usually needs an outer shipping box or secure external taping to prevent it from opening in transit.

Assembly Method

Determine whether the carton will be formed by hand or by machine. Automated forming is efficient, while manual assembly involves folding and seating each of the four claw locks individually.

Print and Finish Surfaces

The flat blank allows for high-quality printing on the entire exterior surface. Consider how the graphics will align across the lid, front flap, and side walls when the carton is closed.

Template Adjustments

Window Additions

A display window can be added to the top lid panel for product visibility, provided it stays clear of the structural creases and corner tabs.

Lock Geometry Tweaks

The size and shape of the claw tabs and receiving slits can be adjusted to accommodate slightly different board grades or to change the tension of the lock.

Dust Flap Length

The side dust flaps on the lid can be extended or shortened depending on the desired level of dust protection and the clearance needed for the product.

Board and packing details

Lid Clearance and Dust Flaps

The lid includes side dust flaps and front corner tabs that fold inward. This creates a tighter seal than a basic tuck lid, but may need slightly more clearance if the product sits flush against the top edge.

Lid and Closure Variants

Standard Tuck-In Lid (B15.06.00.50)

Uses the same claw-lock base but features a simpler tuck-in lid without the full side dust flaps or closed front corners.

Open Corner Lid (B15.06.00.53)

Features a three-winged flap cover but leaves the front corners open, offering a slightly faster closure at the expense of total dust protection.

Additional notes

Automated forming machinery

If you plan to use automated equipment, verify the exact tolerances of your forming cavity and plunger. The die-cut blank should match the machine's footprint to ensure the claw locks snap correctly in one fluid motion.

Related Packaging Options

B20.06.00.60: Double-Wall Claw-Lock Tray

Uses two double walls for increased vertical stacking strength while maintaining the unglued claw-lock system.

FAQs

Assembly and Packing

Can this box be assembled by hand?

It can be folded by hand, but it is slower than using pre-glued boxes. The operator folds the walls and manually snaps the four claw tabs into their receiving slits. It is best suited for automated forming machinery or low-volume manual packing.

Does this carton use any glue?

The entire structure, including the base tray and the attached lid, holds its shape through mechanical friction and interlocking tabs without adhesive.

Material and Fit

Can I use corrugated board for this design?

Thicker corrugated material often crushes during insertion or needs overly wide slits that weaken the lock. The claw locks rely on the flexibility and shear strength of normal folding carton board.

Closure and Security

What makes the lid 'closed-corner'?

The front tuck flap of the lid has two small side tabs. When the lid is closed, these tabs fold inward to block the gaps at the front corners, preventing dust or small items from escaping.

Shipping and Route

Is this carton secure enough for ecommerce shipping?

The friction-tuck lid and single-wall construction suit retail shelves or bakery counters. For courier or postal shipping, it should be placed inside a dedicated corrugated outer mailer.

Material and Fit

Why is board thickness important for this package?

The mechanical claw locks rely on precise geometry. If the board is thicker or thinner than the template specifies, the tabs will either fail to engage securely or tear the receiving slits during assembly.

Assembly and Packing

How does automated assembly work for this tray?

A plunger pushes the flat blank into a forming cavity, which folds the walls upright and snaps all four claw locks into place simultaneously.

Material and Fit

Can the lid accommodate a display window?

A clear window can be added to the top panel to display the product, as long as the cutout stays clear of the structural creases and corner tabs.