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FEFCO 0436.1a

Machine-Erected Stackable 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.
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Product details

Top highlights

Requires automated hot-melt tray erecting machinery
Interlocking tabs and top flanges support heavy pallet stacking
Open top provides ventilation and immediate retail visibility

About this product

This heavy-duty corrugated tray is built for high-volume packing lines equipped with automated hot-melt tray erectors. It features wide top flanges that bear vertical weight and upward-pointing tabs that interlock with the tray above, creating a stable, self-supporting pallet load.

By replacing manual folding locks with simple 90-degree glue flaps, this design uses less corrugated board and allows for rapid machine assembly. It fits automated agricultural, bakery, and industrial distribution where manual packing is too slow.

Common uses

Field-to-shelf agricultural produce
Commercial bakery and confectionery transport
Heavy industrial parts staging
Direct-to-floor retail display

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High-Volume Palletized Distribution

High-speed produce and agricultural packing

The open top allows field heat to escape, while the interlocking tabs keep dense pallets of fruit or vegetables from shifting during transit. Because it is machine-erected, it keeps up with high-throughput sorting lines.

Commercial bakery and confectionery transport

The rigid top flanges prevent the tray above from crushing delicate baked goods. Trays can be moved directly from the delivery truck to the retail floor without unpacking.

Heavy industrial parts staging

The glued corners and flanged walls contain heavy components securely. The open top allows assembly workers to access parts quickly without opening flaps or cutting tape.

Direct-to-floor retail display

Club stores and bulk grocery locations often move unitized pallets straight from the truck to the aisle. The open top provides immediate product visibility for shoppers.

Agriculture, Commercial Bakery, and Industrial Parts

High-throughput packing facilities

Operations that process thousands of units a day cannot afford the labor of manually folding complex trays. This design shifts the work to a machine, trading a capital equipment requirement for massive labor savings and lower per-unit board usage.

Cold chain and grocery distribution

When manufactured with moisture-resistant board, the tray maintains its stacking strength in refrigerated environments. The interlocking tabs ensure the pallet remains stable even if individual trays soften slightly from humidity.

Automated fulfillment centers

Facilities equipped with hot-melt tray formers use this design to standardize their outbound pallet loads. The consistent tab placement allows robotic palletizers to stack the trays accurately.

When to Consider Manual or Closed Packaging

Hand-packing operations without tray erectors

If you do not have automated hot-melt machinery, this tray cannot be assembled efficiently. Compare the base FEFCO 0436 or FEFCO 0432, which use 180-degree roll-over walls to lock together manually without glue.

Single-parcel courier shipping

The open top leaves contents exposed. If you are shipping directly to a consumer through a parcel network, compare a fully enclosed mailer or plan to place this tray inside a master carton.

Close variants and lookalike dielines

The closest library neighbors include 0436.1, EVC30021_1, 0436.2. 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, Machine Clearances, and Pallet Fit

Tray erector compatibility

The exact placement of the corner glue flaps must match your machine's forming mandrel and plow clearances. Sharing your equipment model early ensures the flat blank will run without jamming.

Board grade and tab clearance

Moving to a thicker double-wall board increases vertical crush resistance, but it also changes how the tabs fit into the receiving slots. The die-cut slots must be widened to accommodate the thicker material, or the trays will fail to interlock.

Pallet pattern alignment

The length and width of the tray must be sized to fit your specific pallet dimensions without overhang. Overhanging trays lose the structural support of the interlocking tabs.

Moisture and humidity exposure

If the tray will move through cold-chain environments or carry damp produce, the board should be treated to resist moisture. Standard kraft board will absorb humidity and lose the rigidity required for the interlocking tabs to function.

Adjusting Flanges, Tabs, and Ventilation

Flange width and stacking surface

The width of the top shoulder can be adjusted. A wider flange provides a larger resting surface for the tray above, increasing stability, but it reduces the open area available for product loading and display.

Ventilation and hand holes

The end panels naturally accommodate die-cut hand holes for easier lifting. Additional ventilation cutouts can be added to the side walls for produce, though this slightly reduces the overall vertical compression strength.

Tab and slot profiles

The height and width of the alignment tabs can be modified to match specific palletizing equipment or to provide deeper interlock for loads with a high risk of lateral shift.

Board and packing details

Managing internal stripping waste

The interlocking base slots create small pieces of scrap board during die-cutting. For high-volume runs, the converter must aggressively manage this internal stripping to prevent press jams and ensure clean slots for palletizing.

Glued vs. Manual Tray Variants

FEFCO 0436.2 (Lidded Glued Tray)

Adds crossed interior top flaps and a front tuck tab over the glued base, providing a closed top for environments that require overhead protection.

Additional notes

Hot-melt glue specifications

The speed of your packing line dictates the required hot-melt adhesive. The glue must set fast enough to hold the corners square immediately after the tray leaves the forming cavity.

FAQs

Assembly and Machinery

Can this tray be assembled by hand?

No. While it is physically possible to fold and glue the corners manually, the 90-degree flaps are specifically designed for the speed and compression plates of an automated hot-melt tray erector. Hand assembly will be slow and likely result in out-of-square trays that fail to stack.

Stacking and Palletizing

How do the interlocking tabs work?

The short end walls feature upward-pointing tabs that protrude above the tray. The bottom of every tray has corresponding die-cut slots. When stacked, the tabs of the lower tray lock into the slots of the upper tray, preventing the pallet load from shifting laterally.

Shipping and Route

Can I ship this tray through a parcel network?

Because the top is open and the contents are exposed, single-parcel courier routes require placing this tray inside a fully enclosed master carton to keep contents secure.

Board and Fit

Can we use heavy double-wall board for more strength?

Double-wall board provides excellent vertical compression strength for heavy loads. However, the die-cut slots and fold allowances must be precisely recalculated to handle the extra thickness, otherwise the interlocking tabs will bind or crush during stacking.

Customization

Can we change the size of the top flanges?

The top flanges can be widened to create a larger resting ledge for the tray above, or narrowed to increase the open display area. This decision balances your need for stacking stability against the size of the product being loaded.

Production Path

Does this tray require a cutting die?

The specific alignment tabs, receiving slots, and top flanges require flatbed or rotary die-cutting. It cannot be produced on a standard box-making slotter without a cutting die.

Print and Branding

What surfaces are available for printing?

The flat blank allows standard flexographic or lithographic printing on the outer side and end walls before the machine erects the tray.

Prototyping

How do we test the tab interlock before a full production run?

Digital cut prototypes can verify the tab and slot clearances with your specific board grade, ensuring the trays will stack correctly before committing to a full run.