Cobot Palletizing: A Practical Getting-Started Guide

Stacking boxes onto a pallet is one of the most repetitive, back-straining jobs on any production floor, which is exactly why cobot palletizing has become one of the fastest routes to a first automation win. A collaborative robot can build neat, stable pallets shift after shift without fatigue, and because it is designed to work safely alongside people, you can often deploy it without rebuilding half your warehouse. This guide walks through when cobot palletizing pays off, how to size the robot, and the practical decisions that make the difference between a smooth project and a frustrating one.

At Fairino and TMC Robotics we see palletizing come up again and again as the application manufacturers ask about first, so it is worth getting the fundamentals right before you buy anything.

When does cobot palletizing pay off?

Cobot palletizing is not the answer to every end-of-line problem, but it fits a surprisingly wide band of real production. It tends to make sense when:

• You are palletizing by hand today and the task is repetitive, heavy, or hard to staff.
• Your throughput is moderate rather than extreme high speed, roughly a handful of cases per minute rather than dozens.
• You run a high mix of products or pallet patterns and need to switch between them quickly.
• Floor space is tight and a fully fenced industrial palletizing cell would be overkill.

If you are moving thousands of identical cases per hour at high speed, a dedicated high-speed palletizer may still win. But for small and medium batch runs, seasonal peaks, or lines that change products often, a cobot gives you flexibility that fixed automation cannot match.

Sizing the cobot: reach and payload for palletizing

Getting the size right is the single most important decision in a cobot palletizing project, and it is where most first-timers slip up. Two numbers drive everything: payload and reach.

Charge utile

Your payload budget is not just the weight of the box. It is the box plus the gripper, plus any adapter plate and cabling. A vacuum head or a clamp gripper can easily add several kilograms, so a 5 kg case might really need a 10 kg or larger cobot once tooling is included. Always add the tool weight before you choose a model, and leave headroom so the robot is not running at its absolute limit all day.

Portée

Reach decides how tall and how wide a pallet you can build. A full Euro pallet stacked to shoulder height needs meaningful vertical reach, and if you want to serve two pallets from one position you need horizontal reach too. This is why palletizing cobots are usually the larger models in a range. Across the Fairino line the higher-payload arms such as the FR10, FR16 and FR20 are the natural palletizing candidates, while smaller arms suit lighter cases and lower stacks. You can compare payload, reach and footprint side by side on the products page.

Give the cobot more height: pedestals and a 7th axis

Even a long-reach cobot has a limited vertical envelope, and a common mistake is mounting the robot flat on the floor and then discovering it cannot reach the top layers of a full pallet. Two fixes solve this:

• A pedestal or riser lifts the robot base so its working envelope covers the whole pallet height. A well-chosen pedestal is often the cheapest way to unlock a taller stack. See the cobot pedestal for a ready-made option.
• A 7th axis or lift column moves the robot up and down on a rail, extending vertical reach dramatically and letting one cobot serve taller pallets or several pallet positions.

For most starter projects a fixed pedestal is enough. Reach for a lift column only when pallet height or multi-pallet serving genuinely demands it.

Choosing the gripper: vacuum versus mechanical

The end-of-arm tool makes or breaks palletizing reliability. The two main families are vacuum and mechanical, and the right choice depends on your product.

Vacuum grippers

Vacuum heads are the workhorse of case palletizing. They pick smooth, flat-topped cartons quickly and handle a range of sizes with the same tool. They do need a clean, non-porous top surface and a reliable compressed-air or vacuum-pump supply, and very dusty or shrink-wrapped products can be tricky.

Mechanical grippers

Clamp or fork-style mechanical grippers grab a case from the sides or underneath. They shine with heavy, irregular, or open-top containers, bags, and products where suction is unreliable. They are typically slower to index and more product-specific, but far more secure on awkward loads.

Many palletizing cells end up with a vacuum head as the default and a mechanical option in reserve for the odd product. If you are still weighing this up, our guide on vacuum versus mechanical grippers goes deeper, and the products page lists the gripper options we stock.

Pattern software and part presentation

A palletizer is only as good as the pattern it builds and the way parts arrive. Modern cobot palletizing software lets you define layer patterns visually, set interlocking arrangements for stability, and add slip sheets between layers, all without hand-coding every position. Fairino cobots use a straightforward teach-and-set workflow, so building a new pattern is a matter of minutes rather than days.

Just as important is part presentation. The cobot needs each case to arrive in a known position and orientation, so a simple infeed conveyor with a stop or an alignment guide pays for itself immediately. Consistent presentation removes the need for vision on most jobs and keeps cycle times predictable.

Safety: collaborative does not always mean fenceless

A cobot is built to work near people, but a palletizing application still needs a proper risk assessment. Heavy loads, moving pallets, and the pinch points around a growing stack all matter. Depending on payload and speed you may run in a power-and-force-limited mode, add an area or laser scanner to slow the robot when someone approaches, or guard the pallet exchange zone. The robot being collaborative lowers the barrier, but the application is what gets assessed. If you want a plain-language primer, read our article on whether cobots still need a safety fence.

A simple deployment checklist

• Confirm case weight and add the gripper and adapter weight before choosing a model.
• Measure your tallest and widest finished pallet, then size reach and pedestal to match.
• Pick a gripper for your product surface and back it up for odd cases.
• Fix part presentation with a stop or guide so cases always arrive the same way.
• Run a proper risk assessment and plan how full pallets are removed safely.
• Start with one product and pattern, prove it, then add variants.

Nail these six points and a cobot palletizing cell can be running productive layers within days, not months.

Foire aux questions

What is cobot palletizing?
Cobot palletizing is using a collaborative robot to stack products, cases, or bags onto a pallet in a defined pattern. Because the robot is designed to work safely near people, it can often be deployed with a smaller footprint and less guarding than a traditional fenced palletizer.

What size cobot do I need for palletizing?
Add your case weight to the gripper and adapter weight to set the payload, then measure your tallest pallet to set the reach. Higher-payload arms like the Fairino FR10, FR16 or FR20, usually on a pedestal, are the typical palletizing choice.

Do I need a vacuum or a mechanical gripper?
Vacuum heads suit smooth, flat-topped cartons and are the common default. Mechanical clamp grippers are better for heavy, irregular, open-top, or bagged products where suction is unreliable.

Is a cobot palletizer safe without a fence?
Sometimes, but never assume it. A risk assessment of the whole application, including load weight, speed, and pallet handling, decides whether you can run power-and-force-limited, add a scanner, or need guarding.

Ready to see whether cobot palletizing fits your line? Tell us your case weight, pallet height, and throughput and we will help you size the right system. Request a quote or get in touch with the TMC Robotics team, and browse real deployments on our cases page.