WP-30 Collaborative Palletizing Robot: A Complete Guide to 30 kg End-of-Line Palletizing

Summary

The WP-30 palletizing robot is a 30 kg payload collaborative palletizing robot engineered for automatic end-of-line stacking in food, beverage, snack, and light-industrial packaging plants. With a 1,680 mm arm span, a designed palletizing speed of 8–12 cycles per minute, and native support for 1,200 mm × 1,000 mm pallets, the WP-30 replaces repetitive manual stacking with a compact, guardrail-free robotic cell. It pairs a servo-driven arm with a single vacuum-cup or mechanical gripper end effector and graphical programming that lets an operator learn the system in roughly five minutes. For manufacturers facing rising labour costs, high staff turnover, and inconsistent pallet quality, the WP-30 delivers a short payback period, a small footprint, and the flexibility to handle two carton formats on the same line. As a core building block of a modern automatic packaging line, it integrates cleanly with case packers, carton sealers, checkweighers, and metal detectors. This guide explains what the WP-30 is, why it matters on today's production floor, and how to configure it for your own cartons and pallets.

What Is the WP-30 Collaborative Palletizing Robot?

A collaborative palletizing robot is an automated industrial arm designed to work safely alongside human operators while performing repetitive stacking tasks — lifting cases, bags, or cartons from a conveyor and building a stable, square pallet load. The WP-30 palletizing robot is a floor-mounted, servo-driven unit that turns a manual stacking station into a fully automatic one without the heavy fencing, specialist PLC programming, or long commissioning cycle that traditional gantry palletizers demand.

Physically, the WP-30 is defined by a compact envelope and precise motion parameters. The main unit measures L1,732 mm × W1,200 mm × H2,490 mm and weighs approximately 600 kg, so it can be positioned in tight end-of-line spaces and relocated when a line is reconfigured. Its arm span is customisable across four standard lengths — 1,480, 1,680, 1,880, and 2,080 mm — with the 1,680 mm configuration giving the 30 kg payload shown in the table below. Critically, the payload rating scales inversely with reach: a longer arm span lowers the maximum load, so buyers should match arm length to the true weight of the filled carton plus gripper.

Beyond the raw numbers, the WP-30 is defined by how it is programmed and used. It runs on graphical, icon-based teaching software, stores up to 60 palletizing recipes, and can stack two box types (A and B) in a single cycle. Because the arm is force-limited and its motion path is confined to a defined envelope, the machine needs no safety guardrails, which keeps the footprint small and lets operators approach the cell to change pallets or clear a jam. The WP-30 is a self-contained workcell, not a component engineered from scratch.

Why Choose the WP-30? Solving the Real Pain Points of End-of-Line Labour

Manual palletizing is one of the last stubbornly human tasks on an otherwise automated packaging line. It is also one of the most expensive. A worker who lifts 10–25 kg cases 8–12 times a minute for an entire shift absorbs roughly 2,000–3,000 lifts a day, which drives cumulative back and shoulder injuries, fatigue-related errors, and high turnover. Every new hire must be retrained, output falls when a stacker calls in sick, and pallet quality drifts because human stacking is never perfectly repeatable. The result is a bottleneck positioned right at the point where finished goods leave the plant.

The WP-30 attacks those costs directly, and its value shows up in four ways:

1. True labour substitution with a fast payback. One WP-30 can cover a full shift without breaks, so a plant that previously needed two or three stackers per line can redeploy that labour. Because the system is a complete, self-contained cell rather than a custom-engineered gantry, the capital outlay and commissioning time are both lower, which shortens the payback window considerably.
2. Consistent, damage-free pallet loads. Servo motion repeats the same pick-and-place pattern on every cycle, so every pallet leaves the line square, stable, and within tolerance. Interlocking layer patterns built into the recipe keep loads from leaning during transport — a detail that matters when cartons travel long distances or sit in cold storage.
3. Flexibility without retooling. With up to 60 stored recipes and support for boxes A and B in one programme, the WP-30 adapts to seasonal formats, promotional packs, and short production runs. Switching from one carton size to another is a recipe selection, not a mechanical rebuild — a decisive advantage over fixed-format layer palletizers.
4. Safety and floor-space efficiency. The collaborative design removes guardrail fencing, so the cell occupies little more floor area than the pallet positions themselves. That compactness is what allows the WP-30 to slot into existing lines alongside a high-speed carton palletizer or form the final stage of a turnkey palletizing cell without a plant rebuild.

It is worth comparing the WP-30 against its larger sibling before specifying. The WP-50 collaborative palletizing robot carries a heavier 45–50 kg load and a taller 2,450 mm stacking height on a 1,200 mm × 1,100 mm pallet, at a slightly slower 6–8 cycles per minute. If your cases are light and your priority is throughput, the WP-30 is the sharper tool; if you handle dense bagged or canned goods, the WP-50 earns its place. Either way, both machines belong to the same modular robot palletizing system family, which means the teaching interface, spare parts, and service model are shared across the range — a detail that simplifies maintenance and operator training across a multi-line plant.

How the WP-30 Works in a Real Production Line

Follow a typical installation end to end. Filled and sealed cartons arrive on an infeed conveyor after the case packer, sealer, and coding station. A sensor confirms the carton's presence, and the controller — running a pre-taught recipe — sends the arm to the pick point. The end effector, usually a single vacuum cup for cartons or a mechanical gripper for bags, lifts the product and lowers it onto the pallet in the exact position dictated by the layer pattern. When a layer is complete the arm reaches the next programmed height, until the full stack is built. A sensor confirms completion, the forklift removes the finished pallet, and an operator places an empty pallet on the opposite side. Because the WP-30 accepts a pallet on both the left and the right, the cell keeps running while one side is unloaded — continuous flow, minimal downtime.

Real-world palletizing is rarely a single SKU. Consider a European food manufacturer running two carton formats down one line — internal codes K3 and K4. The two products differ in carton size, boxes per layer, and stack height, yet both must be palletised onto the same standard European pallet. The table below shows the exact specification this project had to satisfy:

This is exactly the scenario the WP-30 was built for. Both carton formats sit comfortably inside the 30 kg payload, the 1,200 × 1,000 mm pallet envelope, and the 1,200 × 800 mm EPAL pallet. The 2,200 mm total stack height stays below the WP-30's 2,350 mm maximum palletizing height, leaving headroom if production expands. Both formats use the same single vacuum cup — no tooling changeover — and the two recipes simply live in the controller's library of up to 60 programmes, so switching between K3 and K4 is one selection on the graphical interface.

The engineering subtlety lies in the layer pattern and pick frequency. Format K4 stacks 12 cartons per layer over 19 layers, while K3 stacks 15 per layer over 20 layers, so the recipes use different interlocking patterns to keep each pallet square. The stated line speeds of 4 and 5 cartons per minute sit comfortably inside the WP-30's 8–12 times per minute rated speed, so the robot is never the constraint and retains surplus capacity to absorb upstream surges.

Finally, the WP-30 rarely works alone; it is usually the last station in a chain of filling, sealing, case packing, checkweighing, and metal detection. Where a plant wants a single accountable scope, Waylead supplies the whole line as an end-of-line palletizing solution covering infeed, palletizing, and stretch-wrapping. Where an existing line needs only the final robot, the WP-30 drops straight in as a standalone reliable robot palletizing system. That modularity keeps integration risk low and commissioning measured in days, not months.

Frequently Asked Questions

Conclusion

The WP-30 collaborative palletizing robot turns a costly, injury-prone manual stacking station into a compact, guardrail-free automatic cell. With a 30 kg payload, an 8–12 times per minute palletizing speed, a 1,200 mm × 1,000 mm pallet envelope, and the flexibility to run multiple carton formats from a library of up to 60 recipes, it delivers consistent, damage-free pallets and a fast return on investment. As shown by the two-format food project above, it handles real production mixes — different carton sizes, layer counts, and stack heights — on one standard pallet, without tooling changes.

Ready to automate your end of line? Send us the dimensions and weights of the cartons or bags you want to palletize, your target pallet size, and your required throughput, and our engineers will recommend the right WP-30 configuration and return a quotation, a layout drawing, and a full product catalogue. Contact us today to book a free palletizing feasibility assessment and see how quickly the WP-30 can pay for itself on your line.