Types of plastic bulk bins: the definitive guide

When someone calls us asking for "bulk bins", there are almost always three questions to ask before quoting a price: what goes inside, how you move it, and how much it has to withstand. Because under the word bulk bin, or Big Box, which is the same thing, there are quite different types of plastic bulk bin: some vent, some are sealed; some are tall, some are low; some can be picked up with a pallet truck from all four sides and others only with a forklift. Choosing wrong will not ruin a season, but it costs you: fruit that overheats, stacks that wobble, wasted cold-store space, or a warehouse full of containers that do not match what you already have.

This guide sorts the types of plastic bulk bin by the criteria that actually decide the purchase, with the measurements we work with in our catalogue. If by the end you know exactly which model to order, it has done its job.

The base format: 1200x1000

Almost all industrial plastic bulk bins used in Spain start from the same footprint: 1200 x 1000 mm. It is the size of the industrial pallet, so the bulk bin fits cleanly into a lorry, a cold store, shelving and most tipping equipment in the fruit and vegetable sector. Our plastic bulk bins catalogue is built entirely on that base.

What changes from one model to another is the height, the wall type and the ground-support system. Those three decisions are independent of each other: you can have a low vented one with skids or a tall solid one with legs. Let's go through it.

Tall and low: 780 or 580 mm

Height determines capacity and, above all, the weight of each stacked column.

• 780 mm-tall Big Box: around 610 litres of capacity and up to 500 kg load. This is the season standard when you are moving a lot of volume and the product can take the weight of its own layers.

• 580 mm-tall Big Box: around 300 litres, with the same maximum permitted load as the taller model. Less product per unit, lighter stacks and easier handling, especially inside a cold store.

The rule of thumb: the 780 tall one wins when the bottleneck is space; the 580 low one wins when the bottleneck is handling or how delicate the product is. If you work with citrus with high cold-store turnover, the 580 handles better and puts less pressure on the bottom layers. If you are filling in the field and transporting to the plant, the 780 saves you trips.

There is a third factor that gets forgotten: the usable height of your cold store and your lorry. If stacking four heights with the 780 model leaves you with half a metre of dead space above, maybe five heights of 580 makes better use of the gap. Measure it before you buy; it is a two-minute calculation that shapes your fleet for years.

Vented and solid: breathing or not dripping

This is the decision most often got wrong, and it is the easiest one to get right.

The vented bulk bin has perforated walls and base. Air circulates through the stack, which prevents condensation, hot spots and rot. It is what you want for fruit, vegetables and produce: living product that keeps breathing after harvest. It is also lighter and somewhat cheaper to move.

The solid bulk bin has closed, sealed walls and base. It does not drip, does not let anything through and can be thoroughly sanitised. It is what you want for meat and by-products, liquids, wet product or anything that must not contaminate what is below it in the stack. In a boning room, a vented one is not an alternative: it is a problem.

Quick rule: if the product needs to breathe, go vented. If the product can release liquid or needs thorough washing between uses, go solid. And if you are unsure because you do both, harvest in summer, industrial use the rest of the year, consider two separate batches rather than one in-between model that does neither job well.

Legs or skids: how you lift it

The base of the bulk bin determines which machine you can pick it up with.

• With legs: three or four supports. It is the lighter, cheaper version, stable when stacked statically, and handled with a forklift.

• With skids: two or three continuous runners. These allow entry with a pallet truck as well as a forklift, and work better on floors with rollers or conveyors.

If your warehouse only has forklifts and the bulk bin gets stacked and left alone, legs are all you need and cost less. If you have pallet trucks, docks with roller lines, or people moving single units by hand, skids pay for themselves in time saved. Watch out: mixing legs and skids in the same fleet complicates cross-stacking, so decide and stay consistent.

Extras that change how it is used

The lid turns the bulk bin into a closed container: it protects against dust, rain and the weather, and adds extra security when stacking outdoors. It makes sense for long-term storage or extended transport, less so for a quick season.

And then there are spare parts. A snapped leg or a broken skid does not retire a bulk bin: in accessories you will find legs, centre and side skids, lids and base plates compatible with the standard 1200x1000 models. Replacing the part costs a fraction of replacing the unit.

Which type of bulk bin to order: decide in five minutes

1. Define the product: does it breathe or drip? That gives you vented or solid.

2. Measure your cold store and your lorry: that gives you 780 or 580.

3. Check your equipment: forklift only, legs; pallet truck or rollers, skids.

4. Check what containers you already have: stacking compatible models is worth more than saving a few euros on an orphan model.

5. Work out your annual usage: if you only need it at the season peak, look at bulk bin rental before buying.

That last point is the one that moves the most money. Buying makes sense when the container works for a good part of the year; if your fleet sits idle for eight months, you are paying storage costs on tied-up containers. And if you already have surplus units from previous seasons, we will buy them from you or they can enter our reuse and recycling circuit.

Each sector leans towards a different model, fruit and vegetables, meat, food, logistics, industry; you can see recommendations by sector or resolve loose questions in the frequently asked questions.

Know your use case but not the model? Tell us what goes inside, how many kilos, and what machinery you move it with, and we will tell you which bulk bin to order and in what condition suits you, new or checked second-hand. Write to us to request a quote or call us.