2D pallet shuttles are innovative solutions in warehouse logistics, characterised by their versatility and flexibility. Compared to traditional pallet storage and retrieval machines (SRMs) and one-dimensional pallet shuttles, they offer several decisive advantages. Today, we are looking at the main areas of application in which 2D pallet shuttles are particularly effective.
High capacity with less effort
One of the main strengths of 2D pallet shuttles is that a few can handle many pallets, especially in warehouses with few stock-keeping units (SKUs). Although these warehouses only hold a limited number of items, they do so in large quantities. The throughput is manageable, making these shuttles ideal for warehouses with high volumes and a low variety of items.
Small footprint with high-performance
Another advantage of 2D pallet shuttles is their efficiency in a limited space. The system performance does not scale directly via the number of aisles, so high throughput rates can also be realised in small warehouses. By increasing the number of shuttles, the warehouse's performance can be increased to operate compact warehouses with high performance without the need for additional aisles. This is particularly advantageous for companies that need to maximise throughput in existing storage space without compromising performance.
High scaling requirements and flexibility
Another key benefit of 2D pallet shuttles is the ability to scale performance and capacity independently. Adding more shuttles can increase system performance without additional aisles, as would be the case with traditional storage and retrieval systems. This allows for flexible and on-demand adaptation to changing storage needs without increasing unnecessary storage capacity.
Future developments and challenges
The question of where the journey for 2D pallet shuttles is heading is an exciting one. It remains to be seen whether the gap between the various application areas will narrow. However, prices are expected to fall as they become more widespread, even if the parking space price remains high. This could lead to storage and retrieval machines continuing to play a role in the market, while mother-daughter shuttle systems may face greater challenges.
Technical challenges
As with any robot-based storage system, the density of shuttles or robots in a given space is a limiting factor. This is where advanced routing algorithms play a crucial role in maximising the system's efficiency. A good example is the GEBHARDT Omnipallet® solution, which uses an advanced routing system to maximise throughput even in a small area. The warehouse in which 2D pallet shuttles are used is often designed as a channelled warehouse. In warehouses with few aisles and long channels, 2D pallet shuttles are suitable for simple, low throughput-critical applications with a large number of pallets and a few different items. However, in warehouses with shorter lanes or multiple deep storage, a more significant number of shuttles are required to store, retrieve and transfer goods efficiently. Many operations take place simultaneously in the storage cube. This is where the software plays a decisive role in ensuring high process integration and efficiency. Further challenges lie in security technology, the WLAN infrastructure, and the integration of conveyor technology, automated guided vehicles (AGVs), and workstations.
Conclusion
2D pallet shuttles offer numerous advantages in modern warehouse logistics, particularly regarding flexibility, scalability and efficiency in a limited space. Despite some technical challenges, they can potentially complement or even replace traditional warehouse technologies in many application areas. The future of 2D pallet shuttles remains exciting, and how this technology will develop remains to be seen.