What is a pallet dispenser, and how does it work?

Lies Decock ·

A pallet dispenser, also known as a pallet feeder, automates the supply of empty pallets on a production or packaging line. Instead of having employees manually feed pallets, the dispenser dispenses them one by one at the right time and at the right height. That sounds simple, but proper installation and configuration determine whether the machine runs smoothly or causes constant malfunctions.

In this manual, you’ll go through everything you need to know to properly set up a pallet dispenser, step by step: from preparing and loading pallets to testing the first dispense and troubleshooting common issues. Whether you’re working with a pallet dispenser for the first time or optimizing an existing setup, this guide will help you get started.

What You'll Need Before Installation

Proper preparation prevents problems during installation. Before you begin, check to make sure the location and infrastructure meet the dispenser’s technical requirements. A pallet dispenser is a heavy piece of equipment that must be stable and requires sufficient space for operation and maintenance.

  • Clear floor space: at least the width of the dispenser plus 80 cm on either side for access
  • Flat, load-bearing floor: check the load capacity; a full stack of pallets can weigh quite a bit
  • Power connection: Check the required voltage and fuse rating in the technical data sheet
  • Compressed air connection (if applicable): Some models use pneumatic grippers or lifting mechanisms
  • Pallets of the right type and size: make sure you know which type of pallet (Euro, industrial, plastic) the machine can handle
  • Technical data sheet and installation manual: Keep these on hand throughout the entire procedure

Also check whether the clearance height of the space is sufficient to load stacks of pallets into the dispenser using a forklift or pallet jack. With all the materials and information at hand, you can complete the installation without unnecessary interruptions.

Loading Pallets Correctly into the Dispenser

Loading pallets is a step that many operators underestimate. Improperly placed pallets are the most common cause of malfunctions during pallet dispensing. Follow the steps below carefully to ensure smooth operation.

  1. Stack the pallets neatly on top of each other without letting them tilt. Remove any damaged or broken pallets before loading.
  2. Using a forklift or pallet jack, position the stack so that it is precisely centered in the dispenser's loading opening.
  3. Slowly lower the stack until the bottom pallet rests on the machine's support points or lifting platform.
  4. Remove the conveyor and visually inspect the stack to ensure it is straight and has no protruding boards that could block the grippers or sensors.
  5. Close the loading opening or safety hatch as described in the manual.

After loading, the stack must be stable and not wobble. If the machine sends a sensor signal indicating that the stack has not been detected correctly, check to make sure the pallets are resting completely on the support points and that there is no debris or plastic wrap between the pallets.

Set up the dispenser for your pallet type

Each pallet dispenser has adjustable parameters that determine how the machine grips, lifts, and releases a pallet. The settings vary depending on the pallet type: a Euro pallet machine operates differently than a machine that handles industrial or plastic pallets. Refer to the technical data sheet for the recommended default settings for your pallet type.

Adjust the following parameters using the control panel or the PLC interface:

  • Gripper width or clamping distance: Set it to the exact width of the pallet so that the machine grips it securely without damaging the wood
  • Lifting height or separation height: the height at which the top pallet is separated from the stack
  • Dispensing speed: Adjust this to match the speed of the downstream conveyor belt or production line
  • Sensor thresholds: Set the minimum stack height at which the machine signals that the dispenser needs to be refilled

Save the settings as a named profile if the machine handles multiple pallet types. This allows you to quickly switch between configurations in the future without having to reconfigure the machine. It also helps you determine the correct configuration by providing an overview of the possible pallet-handling applications.

Testing and Verifying the First Pallet Dispatch

With the pallets loaded and the settings configured, it’s time for a test run. Always perform the first dispensing manually and in the presence of an operator, so you can intervene immediately if something goes wrong.

  1. Turn on the machine using the control panel and wait until the system has completed the initialization routine (make sure all status lights are green).
  2. Trigger a manual dispensing using the test button or the manual command in the menu.
  3. Watch as the grippers grasp the bottom pallet and separate it from the stack.
  4. Check to make sure the pallet lands on the output conveyor or platform straight and without tilting.
  5. Perform at least three consecutive issues to confirm that the cycle is running consistently.

After a successful test run, switch to automatic mode and let the machine run a full cycle while connected to the production line. Then check the first ten dispensed pallets for damage to the bottom or misalignment. If everything goes smoothly, the pallet dispenser has been validated and is ready for production.

Troubleshooting Common Problems

Even when installed correctly, problems can occur. Most malfunctions in a palletizer can be traced back to a limited number of causes. Below are the most common problems and how to address them.

The pallet is not being separated properly

Check to make sure the gripper width is set correctly. Pallets that are stuck together due to moisture or dirt can make separation more difficult. Clean the pallets before loading and slightly increase the separation height in the settings.

The machine stops and displays an error message

Check the error code on the control panel and compare it to the error code table in the manual. Common causes include a blocked sensor (check for dust or plastic film), an empty stack, or a pallet that is crooked inside the machine.

Pallets end up on the conveyor belt at an angle

This usually indicates an asymmetrical gripper setting or an uneven stack. Check to make sure all the pallets in the stack are the same size, and readjust the grippers to the centerline of the machine.

The machine is making unusual noises

Creaking or clunking noises may indicate wear on the grippers or insufficient lubrication. Turn off the machine and inspect the moving parts before continuing.

Maintenance for a Long Service Life

A pallet dispenser is a mechanically demanding piece of equipment. Regular maintenance prevents unplanned downtime and significantly extends its service life. Develop a maintenance schedule based on the manufacturer’s recommendations and the intensity of use.

Perform at least the following maintenance tasks:

  • Daily: visually inspect for damage, remove dust from sensors, and check that all safety devices are intact
  • Weekly: Lubricate moving parts (guides, lifting mechanism, grippers) according to the lubrication chart
  • Monthly: Check electrical connections for loose connections; inspect gripping elements for wear
  • Annually: comprehensive technical inspection by a certified technician, including a check of the safety switches and emergency stop function

Document each maintenance service in a logbook. This allows you to detect recurring problems early and identify wear patterns before they lead to a breakdown. A well-maintained service plan is the most cost-effective way to ensure machine availability.

How Logitrans Handling Helps with Pallet Dispensers

At Logitrans Handling, we guide you from your initial inquiry through to the day-to-day operation of your palletizer. Whether you’re planning a new installation or looking to optimize an existing system, we offer practical support at every level:

  • Free workstation analysis: We assess your current situation and recommend the type of pallet dispenser that best suits your pallet type, line speed, and available space
  • Demo facility in Drongen: Test the machine with your own pallets before you make a decision, so you can be sure the solution works in your specific context
  • Installation and Training: We install the machine and train your operators so they can work independently and safely
  • Maintenance Contract: Preventive and corrective maintenance to ensure maximum machine availability and avoid safety risks
  • Semi-automation solutions: If the pallet dispenser is part of a broader automation effort for your production line, we’ll work with you to figure out how to integrate it

Would you like to know which pallet dispenser is best suited to your situation, or do you have a question about an existing installation? Please contact us, and we'll be happy to assist you.

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