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EVC11102P

Auto-Bottom Tuck-Top Box (Paired Layout) EVC11102P

Available in a wide range of custom configurations & material selection.
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Product details

Top highlights

Pre-glued crash-lock base for instant manual assembly
Regular tuck top with slit locks for secure closure
Paired production layout reduces material usage

About this product

This corrugated box combines an auto-erecting crash-lock base with a clean regular tuck top, making it a strong choice for fast-paced manual packing lines. The paired designation means the template is nested 2-up during production, interlocking two blanks to reduce material waste on large repeat orders.

While the production layout is optimized for the die-cutter, the boxes are delivered as individual knocked-down flats. When squeezed, the pre-glued bottom snaps into place, eliminating manual base folding and keeping the packing rhythm fast and predictable.

Common uses

Fast-paced kitting lines
Retail and consumer goods packaging
Secondary packaging for lightweight items

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Large-Scale Manual Packing Jobs

Fast-paced kitting and fulfillment

The auto-bottom base removes the most time-consuming step of manual box assembly. Packers push the edges together, load the product, and tuck the top, making it a practical fit for fast-paced kitting lines where labor time is the primary constraint.

Retail and consumer goods

The regular tuck top provides a clean, presentation-ready closure. The slit locks engage the side dust flaps to keep the lid secure on the shelf without requiring external seals.

Lightweight secondary packaging

When packing smaller retail cartons or loose items into a master shipper, the crash-lock base supports the load without requiring tape, provided the total weight remains within the limits of the pre-glued flaps.

Hand-loaded subscription boxes

For subscription programs where presentation matters, the regular tuck top provides a clean opening experience, while the auto-bottom base keeps fulfillment moving quickly.

Retail, Kitting, and Secondary Packaging

Large-scale repeat programs

The paired layout is specifically designed to reduce blank sprawl on the die-cutter. By interlocking two blanks, this layout minimizes corrugated waste, making it a practical choice for large-scale, ongoing production.

Fast-paced fulfillment centers

When labor time is the primary bottleneck, the pop-open base removes the need to fold and tape bottom flaps, allowing packers to focus entirely on loading the product.

Retail shelf display

The regular tuck top keeps the front panel clean and unbroken, making it a strong fit for products that will be stacked or displayed directly on store shelves.

When to Consider Snap-Lock or Standard Bases

Heavy or bulky products

While the crash-lock base is strong, very heavy items may require a fully overlapping base or a taped bottom. If the product weight exceeds the capacity of the pre-glued flaps, a standard RSC or a heavy-duty tray may be a safer choice.

Direct parcel shipping

The tuck top is designed for retail shelves and master shippers, not the rough handling of parcel networks. If shipping directly to consumers, the top closure should be evaluated for tape, or a dedicated mailer style should be compared.

Board, Flute, and Production Route Choices

Flute thickness and folder-gluer limits

Crash-lock bases require precise folding and gluing on a multi-point folder-gluer. Heavy flutes can cause the auto-erect mechanism to bind or tear. E-flute or B-flute is generally recommended for smooth assembly.

Production route and layout choice

The paired layout requires specific die-cutting preparation and blank separation before gluing. This setup makes the most sense for repeat programs where material efficiency is the priority. For short trials or prototypes, a single-up layout is often easier to manage.

Top closure security

The regular tuck top relies on friction from the slit locks. If the box will be shipped directly through parcel networks, an external seal or tape should be evaluated to prevent the lid from popping open.

Base strength and product weight

While the crash-lock base is fast to assemble, it relies on pre-glued flaps to hold the product. Heavy or dense items may require a fully overlapping base or a taped bottom for safe transit.

Flap and Lock Adjustments

Slit lock depth and angle

The notches on the tuck flap can be adjusted to increase or decrease the friction against the dust flaps, balancing closure security with ease of opening for the end user.

Dust flap chamfers

The edges of the dust flaps in the paired layout are specifically profiled to prevent interference when the two blanks are nested on the sheet.

Tuck flap length

The length of the main tuck flap can be extended to provide more friction and a deeper seat behind the front panel, increasing closure security.

Packing details

Delivery and storage

Despite the paired production layout, the boxes are separated during converting and delivered as individual knocked-down flats, ready for immediate use on the packing line.

Package Variants

Single-up layout (EVC11102)

The exact same box structure, but produced as a single blank. Useful for smaller orders or when the specific machine envelope does not support the paired layout.

Additional notes

Folder-gluer requirements

The crash-lock base requires the converter to use a multi-point folder-gluer to apply adhesive to the bottom flaps and the side seam in a single pass.

FAQs

How much faster is a crash-lock base than a standard box?

A crash-lock base pops open when the flat is squeezed, eliminating the need to fold and tape four bottom flaps. This reduces assembly time on manual packing lines.

What does paired layout mean for my order?

It means the production layout nests two interlocking boxes together to save corrugated board. You still receive normal, individual flat boxes. It is a manufacturing optimization that improves material efficiency on large orders.

Can I use thick corrugated board for this box?

Thick board, such as double-wall, is usually not recommended for crash-lock bases because the complex folds can bind or tear in the folder-gluer. E-flute or B-flute provides the best balance of protection and smooth auto-erecting behavior.

Is this box suitable for shipping via courier?

The tuck top can pop open during rough transit. If used as a standalone parcel shipper, the top closure may need an outer seal or tape to handle parcel networks.

How does the top stay closed without tape?

The tuck flap features small notches (slit locks) that catch on the edges of the folded side dust flaps, creating a friction lock that holds the lid in place for retail or kitting environments.

Does the paired layout change how the boxes are packed on pallets?

No. The paired layout only applies to the flat corrugated sheet during cutting. The boxes are separated and glued before delivery, arriving as standard knocked-down flats.

Can I use custom inserts with a crash-lock base?

Yes. The interior floor is relatively flat once the base is locked, allowing die-cut inserts or dividers to sit evenly and hold products securely.

Does the paired layout affect how my artwork is printed?

Because the two blanks are nested and rotated 180 degrees relative to each other on the sheet, the artwork must be oriented correctly for each blank. This is managed during the prepress stage.