Four-Axis Robotic Palletizer (120kg Payload)

Product Description

The SunAura four-axis robotic palletizer is the versatile centerpiece of our range — a purpose-built palletizing arm sized for the mainstream of industrial end-of-line work. Its 120kg payload and 2400mm reach let it handle a wide spread of loads, from cartons and trays to bags, and still cover a full standard pallet from a single mounting position. Because it is a dedicated 4-axis palletizing robot (rather than a general 6-axis manipulator), it is optimized for the pick-place-repeat motion palletizing demands: fast, rigid, and accurate cycle after cycle.

The arm repeats its placement to ±0.5mm, which keeps layer patterns tight and predictable across multi-hour runs. Up to 15 cycles per minute make it suitable for medium-to-high throughput lines. Protection is IP54, so it tolerates dusty and splash-prone industrial environments without needing a sealed clean-room cabinet. The real flexibility comes from the end-of-arm tool: a vacuum gripper for rigid cartons and trays, a mechanical gripper for bags and sacks, or a fork/plate layer tool for picking whole pre-formed layers. Tool changeover is quick, so one cell can run different products on different shifts.

The cell ships on 380V 3-phase power with interlocked safety fencing, infeed conveyor and a touchscreen HMI that stores pallet-pattern recipes. Every unit undergoes a 48-hour continuous run test before shipment and ships CE certified. Send us your product samples, pallet size and hourly output — our engineers will recommend the EOAT and pattern before you place the order.

Technical Specifications

Key Features & Benefits

• Versatile 120kg medium-heavy payload: Handles cartons, bags, trays and containers across a wide weight range — the sweet spot for most general industrial palletizing lines.
• 2400mm reach covers a full standard pallet: One mounting position reaches the corners of a full-size pallet, so you do not need a second cell or extra track.
• Up to 15 cycles per minute: A purpose-built 4-axis palletizing arm delivers fast cycles that keep pace with medium-to-high speed case and bag lines.
• ±0.5mm repeatability: Tight, consistent layer placement shift after shift — no drifting patterns, no overhanging edges on tall pallets.
• Multiple EOAT options: Vacuum for cartons, gripper for bags, fork for layer picking. Swap tools for mixed product without re-buying a cell.
• IP54 protection: Withstands dust and splash in food, chemical and building-material environments — not limited to clean rooms.
• Recipe-driven operation: Store carton/bag dimensions and pallet patterns by product name on the HMI. Operators select and start — no robotic engineer required for changeovers.

Application Industries

Load compatibility: Cartons, trays, bags and rigid containers up to 120kg per pick. For 180kg heavy-duty bags and bulk loads, see our heavy-duty 180kg model.

How the Four-Axis Robotic Palletizer Works

The 4-axis arm follows a repeatable pick-and-place cycle, with the EOAT chosen for your product. The general sequence is:

1. Product arrives on the infeed conveyor. Cases or bags come off the packaging line and are stopped and centered at the pick station by side guides and a photo-eye.
2. EOAT picks the load. Vacuum pads grip a carton top, gripper jaws close on a bag, or the fork tool engages a pre-formed layer — whichever EOAT is installed. A sensor confirms a secure hold.
3. Arm carries the load to the pallet. The 4-axis arm moves in a controlled arc over the work envelope, keeping the load level and avoiding the conveyor and surrounding equipment.
4. Load placed in the taught pattern. The arm lowers to the current layer height and places the item in the next grid position; the HMI advances the pattern and layer count.
5. Repeat until pallet full. The cycle repeats at up to 15 picks per minute. When the pallet reaches its programmed height, the robot parks and signals for a pallet swap (or switches to a second station on dual-station variants).

Is This the Right Palletizer for You?

This 120kg four-axis robot is the right fit if your operation matches all four of the following. If you fall outside any of them, our team can recommend a different SunAura model:

1. Loads between roughly 20 and 120kg: This arm covers the mainstream of cartons, trays and bags. If your loads are light (under 10–20kg) and people work beside the machine, a collaborative cobot is more economical. If you consistently handle 150–180kg heavy bags, step up to the 180kg model.
2. Throughput around 10–15 cycles/min: It suits medium-to-high speed lines. If you need the absolute highest uniform-case throughput (1200+ cases/hour), a high-level layer palletizer will outpace a single robot arm.
3. Mixed product and flexible patterns: The multi-EOAT and recipe library are assets when you run several products. If you run one steady, uniform case format at maximum speed, a layer palletizer may be simpler and faster.
4. Dusty or splash-prone industrial environment: IP54 protection handles typical food, chemical and building-material conditions. For extremely dusty cement-type duty, the IP65 180kg heavy-duty model is the tougher choice.

Troubleshooting Guide — Common Issues & Solutions

A general-purpose robot cell handles many products, so issues often trace back to EOAT setup or pattern teaching. Below are the most common problems we diagnose remotely. Always lock out and tag out energy before entering the fenced cell.

If the issue persists after trying these steps, email photos and a short 10-second video to [email protected] — our engineers usually diagnose the root cause within one business day.

Frequently Asked Questions

Related Palletizers

Heavy-Duty Robotic Palletizer (180kg)

Dual-Station Robotic Palletizer

Automatic Bag Palletizer

High-Level Layer Palletizer

Browse the full range on the palletizers landing page. Also explore our induction sealers and filling machines to build a complete packaging line.