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FEFCO 0352

Asymmetrical Octabin with Self-Locking Caps

This heavy-duty, three-piece bulk container uses an eight-sided geometry to contain heavy outward pressure from flowable goods. Designed with an asymmetrical footprint, it fills the available space on standard rectangular pallets while replacing weak 90-degree corners with stronger 135-degree angles.

Unlike standard octabins that require stitching or taping on every corner, this design features self-assembling caps with 180-degree roll-over locks. You trade the ability to use extremely thick board on the caps for a cleaner, fastener-free closure.

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At a glance

  • Eight-sided geometry resists outward bulging from bulk powders and resins
  • Asymmetrical footprint maximizes cube efficiency on standard rectangular pallets
  • Top and bottom caps lock mechanically without external tape or stitches

Common uses

  • Plastic resins and polymers
  • PET preforms and lightweight parts
  • Agricultural bulk and heavy produce
  • Dry food ingredients and powders

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Bulk containment and heavy-duty staging

Plastic resins, polymers, and powders

Flowable materials exert constant outward pressure that forces flat corrugated walls to bow. The octagonal sleeve distributes this pressure across eight shorter panels, reducing the risk of the container bulging beyond the pallet edge during transit.

PET preforms and lightweight parts

High-volume plastic parts require large internal capacity without the walls buckling under settling weight. The octabin provides a stable vertical column that maximizes pallet cube efficiency.

Agricultural bulk and heavy produce

For dense, shifting loads, the three-piece design allows workers to stage the bottom cap on a pallet, erect the sleeve, and fill the bin completely before dropping the top cap over the load.

Dry food ingredients and powders

When paired with a food-safe poly liner, the fastener-free caps reduce the risk of stray staples or tape entering the bulk food supply during opening and closing.

Plastics, agriculture, and industrial processing

Chemical and resin distributors

Moving granular materials requires packaging that stacks rigidly in warehouses and fits perfectly into sea containers or trucks without wasting pallet space.

Food processing and ingredients

Bulk ingredient suppliers need large-capacity bins that avoid metal contamination risks. Gluing the sleeve joint and using self-locking caps keeps staples out of the packing area.

Injection molding and plastics manufacturing

Facilities moving preforms or caps internally rely on the large volume and reusable nature of the three-piece design to stage materials near production lines.

When to review stitched caps or standard pallet boxes

When using triple-wall board for the caps

The 180-degree roll-over locks on this package will tear or pop open if the board is too thick. If your payload requires triple-wall corrugated for the top and bottom caps, review the FEFCO 0350 octabin. It uses external stitching or tape instead of mechanical locks.

When packing solid, non-flowable goods

If your product does not exert outward hoop stress, a standard rectangular pallet box offers a simpler two-piece assembly and lower manufacturing complexity.

Board thickness, sleeve fastening, and cap assembly

Mixing board grades for the sleeve and caps

Because the sleeve must resist heavy outward pressure and the caps must fold 180 degrees to lock, this package often uses a heavy double-wall or triple-wall board for the sleeve and a lighter single-wall or double-wall board for the caps.

Sleeve joint fastening

The central eight-sided tube requires a manufacturer's joint. Heavy industrial goods typically use metal stitching for maximum burst strength, while food or pharmaceutical applications require gluing to prevent metal contamination.

Manual assembly labor

The self-locking caps provide a clean finish but require workers to manually fold and tuck eight separate roll-over tabs per bin.

Pallet footprint matching

The asymmetrical dimensions should be sized to match your exact shipping pallet. A 1200x800mm Europallet requires different panel ratios than a standard 48x40 US pallet to prevent overhang.

Footprint scaling and telescopic clearance

Asymmetrical scaling for specific pallets

The corner chamfers and panel widths can be adjusted to create a stretched octagon, maximizing the footprint on a 1200x800 Europallet or other rectangular bases.

Telescopic clearance gap

The internal dimensions of the caps must be precisely scaled to slide over the sleeve. Changing the board thickness of the sleeve requires recalculating this gap so the caps do not bind or fall off.

Cap depth adjustment

The vertical walls of the top and bottom caps can be extended. Deeper caps provide more overlap with the sleeve, increasing friction retention during handling.

Board and packing details

Liner bag compatibility

This corrugated shell is designed to be used with a large gusseted poly bag or liner to contain fine powders and protect against moisture.

Flat delivery and storage

The sleeve folds flat at the manufacturer's joint, and the caps are delivered as flat die-cut blanks, minimizing warehouse space before use.

Additional notes

Manual lock insertion and board resistance

The roll-over tabs on the caps require workers to fold the corrugated board back on itself. Stiffer boards will fight this fold, requiring more hand strength and slowing down the packing line compared to a taped cap.

Related heavy-duty and bulk containers

FAQs

Board and material choice

Can we use triple-wall corrugated for the entire package?

Usually, the central sleeve uses triple-wall board to contain heavy bulk pressure, but the top and bottom caps require 180-degree folds to lock. Triple-wall board is typically too thick for these folds and causes the locking tabs to tear. We often mix a heavy sleeve with lighter caps.

Shipping and route

Does this bin require tape or strapping for shipping?

While the top and bottom caps assemble and hold their shape without tape, the entire assembled bin must be strapped or banded to the pallet to secure the caps and stabilize the load during transit.

Production and assembly

How is the central sleeve closed?

The eight-sided sleeve forms a tube using a single manufacturer's joint. Depending on your payload and industry, this joint is secured with heavy-duty metal stitches or industrial adhesive.

Can this be erected by automated machinery?

The multi-axis folding required for the 180-degree roll-over cap locks makes this a manual-assembly package. Workers erect the sleeve and manually fold the caps on site.

Product fit

Why use an asymmetrical octagon instead of a regular one?

An asymmetrical footprint, where the length is greater than the width, allows the octabin to fill the available space on standard rectangular pallets, like a 1200x800mm Europallet, without overhanging the edges.

Is this suitable for direct food contact?

The corrugated shell itself houses a food-safe gusseted poly liner. If used for food ingredients, the sleeve joint must be glued rather than stitched to eliminate the risk of metal contamination.

Production and assembly

How do the top and bottom caps stay together without tape?

The cap blanks feature locking flaps that fold up 90 degrees, then roll over 180 degrees inward. These tabs insert into receiving slots in the octagonal base, trapping the primary walls and forming a rigid tray.

Board and material choice

What happens if we change the board thickness later?

The internal dimensions of the caps must precisely match the outer dimensions of the sleeve. Changing the board thickness requires recalculating the telescopic gap and the fold allowances so the caps do not bind or fall off.

Reviewing your exact bulk payload, target weight, and pallet dimensions helps determine the right board combination for a secure fit.

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