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EVF11201

Crash-Lock Folding Cartons with Tuck Top

  • 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

  • Base deploys instantly when the carton is squared
  • Top tuck flap features slit locks for secure closure
  • Strong choice for repeat manual fulfillment lines

About this product

The crash-lock folding carton is built for high-speed manual packing. Delivered flat with the bottom mechanism pre-glued, the base automatically snaps into a rigid, locked floor the moment the carton is squared open. The top closes with a regular tuck flap, secured by slit locks that catch against the internal dust flaps to prevent accidental opening.

Because the base requires multi-point gluing during manufacturing, this style relies on a specific production route compared to a regular snap-lock box. For mature retail, cosmetic, and pharmaceutical programs, the reduction in hand-assembly time often makes this the preferred choice.

Common uses

  • High-volume cosmetics
  • Pharmaceuticals
  • Light consumer electronics
  • Fulfillment center kitting

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.

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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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High-Speed Retail and Fulfillment Packing

High-volume manual kitting and fulfillment

When packing labor is the primary bottleneck, the crash-lock base eliminates the need to manually fold and interlock bottom flaps. Packers simply squeeze the edges, drop the product in, and tuck the top.

Retail presentation for light consumer goods

The pre-glued base provides a clean, flat floor that allows the carton to stand perfectly straight on retail shelves, while the slit-lock top keeps the lid secure without needing clear wafer seals.

Pharmaceutical and supplement packaging

Fast, repeatable assembly helps maintain a steady rhythm for pharmaceutical runs. The auto-bottom ensures every carton forms exactly the same way, reducing the risk of base separation or packing errors.

Fast-moving consumer electronics

For lightweight electronics and accessories, this box provides a premium unboxing experience while keeping fulfillment lines moving quickly.

Industries Relying on Auto-Bottom Cartons

Cosmetics and personal care

These sectors often deal with high unit volumes and lightweight products. The crash-lock format supports premium board grades and finishes while keeping the packing line moving quickly.

Contract packaging and fulfillment centers

Operations that rely on hand assembly benefit from the single-motion erection of the crash-lock base, reducing the time spent handling each individual unit.

Retail pharmacy and health goods

The clean lines and secure base make this a practical choice for over-the-counter health products that need to look sharp on the shelf and assemble quickly in the plant.

When to Consider a Different Base Style

Short runs or prototype testing

Because the crash-lock base requires a multi-point folder-gluer to manufacture, a 1-2-3 snap-lock bottom is often a more practical choice for early trials or low-volume orders, even though it takes longer to pack by hand.

Heavy or dense industrial parts

While the glued base is secure, paperboard has limits. If the product is exceptionally heavy, the base may sag or the glue joints may separate. In these cases, a corrugated shipper or a reinforced base may be necessary.

Direct parcel shipping

This carton is designed for retail display or kitting. It requires an outer corrugated shipper to manage the impacts of parcel or courier networks.

Board Caliper, Production Route, and Layout Choices

Board thickness and fold behavior

Crash-lock mechanisms are sensitive to material thickness. If the board is too thick, the diagonal folds can bind or crack when the carton is knocked down for shipping. Common folding boxboard (FBB) or solid bleached sulfate (SBS) usually performs well.

Production route and order maturity

This carton is an investment in packing efficiency. Discuss your expected order volumes early, as the multi-point gluing process requires a specific production route that makes more sense for mature, repeat programs.

Top closure security

The slit locks on the top tuck flap provide a positive mechanical lock. Decide if this friction is necessary for your product, or if a simpler friction tuck is sufficient.

Layout and sheet yield

For mature programs, this template can be configured in a paired layout. This nests the blanks together on the press sheet, reducing paperboard waste.

Tuning the Closure and Fit

Slit lock friction and depth

The small notches on the top tuck flap can be adjusted. Deeper slits provide a stronger mechanical lock against the dust flaps, while shallower slits make the carton easier for the end user to open.

Dust flap coverage

The height of the internal dust flaps can be modified to ensure they provide adequate support for the top lid without interfering with the product.

Paired layout configuration

The template can be adjusted to generate a paired, interlocking layout, which maximizes material yield during the die-cutting process.

Packing details

Paired layouts for material efficiency

For mature programs, this template can be configured in a paired layout. This nests the blanks together on the press sheet, reducing paperboard waste and improving yield at scale.

Layout Variants for Material Yield

EVF11201#2P (Paired Layout)

A nested version of the regular template designed to interlock on the printed sheet, maximizing material yield during die-cutting.

Additional notes

Top flap slit locks

The top tuck flap includes small side slits that catch the raw edges of the inner dust flaps. This creates a positive mechanical lock that resists opening better than a simple friction tuck.

Related Folding Cartons

EVF11000: Straight Tuck Cartons

Worth comparing for very lightweight items where a simple friction-tuck bottom is sufficient.

FAQs

Does this carton work on automated packing lines?

This specific design is optimized for high-speed manual packing. While the base auto-erects when squeezed, the top lid and dust flaps must be tucked by hand. Fully automated cartoning lines typically use different blank styles.

Do I need tape to seal the bottom?

No. The crash-lock base is permanently glued by the manufacturer. Once the carton is squared open, the bottom interlocks into a secure floor that holds normal retail weights without additional tape.

Why does this style require a specific production route?

The base requires a specialized multi-point folder-gluer to fold and apply adhesive to the diagonal flaps before the carton is shipped to you. This machine routing makes it better suited for mature, repeat runs.

Can this be made from corrugated board?

It is generally not recommended. The complex diagonal folds of the crash lock tend to bind or resist opening if the material is too thick. It performs well with common paperboard grades.

Can I ship this directly in the mail?

No. Like most folding cartons, it is designed for retail display or kitting. It requires an outer corrugated shipper to manage parcel or courier networks.

How does the top closure stay secure?

The top tuck flap includes small side slits that catch the raw edges of the inner dust flaps. This creates a positive mechanical lock that resists opening better than a simple friction tuck.

What happens if the board is too thick?

If the paperboard is too thick, the pre-glued diagonal folds on the bottom can bind, preventing the carton from opening smoothly on the packing line.

How are these delivered to the packing facility?

The cartons are delivered knocked down (KD) and completely flat, with the side seam and bottom flaps already glued. They take up very little space until they are opened for loading.