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FEFCO 0722

Double Crash-Lock Box

  • 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

  • One crash-lock end can remain open for loading
  • Second end closes after the product is inserted
  • Strictly limited to thinner boards to prevent the folding mechanisms from binding

About this product

This single-piece corrugated tube has crash-lock structures on both ends. One end can be erected while the other remains open for loading.

After the product is loaded through the open end, the second crash-lock end is closed. The loading sequence should be tested with the intended board and product.

Common uses

  • Flat screens
  • Picture frames
  • Glass panels
  • Empty structural columns for master shippers

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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Cross-wrap packing and structural void fill

Capturing flat rigid products

Screens, glass panels, and framed artwork fit this design. The packer squeezes the flat tube into an oval, slides the item inside, and pushes the corners square. Both ends snap shut around the product in one motion.

Instant structural void fill

Empty space inside large master cartons requires rigid support to prevent crushing. This tube erects instantly into a sealed column that blocks and braces the primary payload.

Edge protection for shallow panels

When shipping wide, thin materials, the dual crash-lock acts as a protective bumper. The enclosed ends keep the panel suspended away from the outer edges of a larger shipper.

Rapid kitting for flat components

Packing manuals, flat brackets, or shallow trays alongside main products. The slide-in loading method allows operators to group flat items quickly before the final squaring motion locks them in place.

Fulfillment, master packing, and electronics shipping

High-speed assembly lines

The double crash-lock eliminates flap folding and taping. It serves a narrow role on the packing floor but drastically reduces handling time for specific flat profiles.

Master carton packing

Operations shipping heavy industrial goods use these empty sealed tubes to fill gaps. They deploy faster than folding complex corrugated inserts.

Electronics and display shipping

Monitors and framed screens require packaging that wraps the edges without applying pressure to the center face. The cross-wrap motion achieves this without secondary tape.

When to choose a standard top-loading base

Top-loading standard products

If the packing team drops multiple items into a box, adds loose void fill, or includes paperwork, the simultaneous closure of this tube blocks them. Compare a standard crash-lock base (FEFCO 0700).

Retail presentation with reclosable lids

The 0722 locks permanently upon erection. If the end user needs to open and reclose the package, compare an auto-bottom with a friction tuck top (FEFCO 0713).

Close variants and lookalike dielines

The closest library neighbors include EVC11121, EVC11102#2P, EVC11102P. Use this as a variant check if a buyer brings an old code, sample, or dieline that looks close. The deciding details are usually the lock, slot, closure, wall build, part count, or fold sequence.

Board thickness, loading workflow, and route planning

Board thickness and flute choice

This mechanism relies on eight separate flaps swinging and interlocking at the exact same time. Heavy single-wall or double-wall boards create too much friction, causing the box to bind. Specify fine flutes, such as E or F flute.

Loading workflow compatibility

Packers cannot load this box vertically. They must slide the product into the partially opened tube before pushing it square. Test this specific motion with physical samples to confirm it actually saves time on the bench.

Production routing and order maturity

Manufacturing this box requires a flatbed die-cutter and a multi-point folder-gluer capable of handling leading and trailing crash-locks simultaneously. This specialized routing makes the package better suited for established repeat programs rather than early prototypes.

Outer sealing for parcel transit

While the ends lock mechanically, severe drops in a courier network can cause the tabs to slip and the ends to open. Physical drop testing determines if the package requires an outer seal or a master shipper.

Clearance, print placement, and sizing

Locking tab clearance

The hooks and notches on both ends tie directly to the exact thickness of the corrugated board. Changing the board grade later requires recalculating the dieline, or the dual locks will jam.

Print placement around diagonal scores

The diagonal creases on the top and bottom flaps do heavy mechanical work during assembly. Heavy, continuous ink coverage directly over these folds can crack under tension.

Length-to-width ratios

The flat tube must be comfortable for one operator to squeeze open. Extreme lengths or widths can make the initial oval-forming step ergonomically difficult on the pack bench.

Board and packing details

Packing trial with the real product

A sample or short packing trial helps check product fit, board behavior, closure feel, insert clearance, and how the package sits at the packing station before repeat ordering.

Additional notes

Reopening the locked ends

The crash-lock tabs are designed for permanent closure upon erection. Reopening the box usually requires tearing the board or destroying the locks, making it unsuitable for products that need to be accessed and re-closed.

Related auto-bottom packaging

EVC11121: Edge Lock - Crash Lock

EngView neighbor that can look close in CAD. Review it if a sample or dieline seems similar, then verify closure style, slots, wall build, and assembly before treating it as a substitute.

EVC11102#2P: Regular Tuck Lock - Crash Lock Paired

EngView neighbor that can look close in CAD. Review it if a sample or dieline seems similar, then verify closure style, slots, wall build, and assembly before treating it as a substitute.

FAQs

Packing and Assembly

How do you put a product inside if both ends close automatically?

The packer squeezes the flat tube slightly to form an oval, slides the product in, and then pushes the corners to a full 90-degree square. The ends snap shut around the item in one motion.

Material and Board

Can we use heavy double-wall board for extra protection?

No. The simultaneous movement of the top and bottom crash-locks creates significant friction. Heavy boards cause the mechanism to bind, making the box nearly impossible to square up by hand.

Shipping and Route

Does this box require tape for shipping?

The ends lock mechanically, but severe shocks in a mixed-carrier network can cause the tabs to slip. Standalone parcel shipping usually requires drop testing to see if an outer seal is necessary.

Comparison

How does this differ from a standard auto-bottom box?

A standard auto-bottom (like the 0700) leaves the top open for vertical loading. The 0722 mirrors the crash-lock mechanism on the top, sealing both ends the moment the box is squared.

Packing and Assembly

Can the customer open and reclose the package?

The crash-lock tabs are designed for permanent closure. Reopening the box usually requires tearing the board or destroying the locks, making it unsuitable for reclosable retail use.

Samples and Testing

What should we test before ordering a full run?

Request unprinted structural samples in the exact production board grade. Have the packing team test the physical pop-up force and the slide-in loading workflow.

Packing and Assembly

Why is this package used for void fill?

When shipped flat, it takes up minimal space. On the packing floor, it erects instantly into a rigid, sealed empty column that can block and brace heavy items inside a larger master carton.

Design and Print

Are there restrictions on artwork placement?

Keep heavy ink coverage away from the 45-degree diagonal creases on the end flaps. These folds undergo high tension when the box snaps open, which can crack thick layers of ink.