4D Pallet Shuttle
The autonomous vehicle carrying up to 2,000 kg. Equipped with two independent wheel sets — 8 for lane direction, 4 for main aisle.

The Rainbow Dynamics 4D Shuttle is a fully autonomous AS/RS that moves across lanes, aisles, and levels, handling loads up to 2,000 kg with exceptional speed, precision, and storage efficiency.

The 4D shuttle AS/RS is a collection of independent parts. It is a purpose-engineered ecosystem where each component is designed to work in unison.
The autonomous vehicle carrying up to 2,000 kg. Equipped with two independent wheel sets — 8 for lane direction, 4 for main aisle.
A rack-integrated lift handling loads up to 2,000 kg with 13.2 kW installed power and energy recuperation.
Pallet shuttle racking system with customized rail profiles. No height loss from main rails or crossing profiles.
Proprietary warehouse management and control software with a Digital Twin simulator, machine learning path optimization.
Shuttles travel along deep storage lanes, across main aisles, and between rack levels via integrated lift — without any manual intervention or re-positioning.
Deep-lane storage with no aisle space wasted on forklift access. The compact racking structure eliminates height loss from rail crossings, maximizing every cubic meter.
Electromechanical spindle-lifting, energy recuperation on the integrated lift, and opportunistic on-line charging ensure peak performance with a fraction of the power consumption.
At every rack crossing, the shuttle's independent wheel sets swap orientation in 3 seconds. No turntables, no lifts between directions — just continuous flow.
Operational from -25°C cold-store environments through to +40°C ambient conditions. The same shuttle hardware serves both requirements without modification.
The proprietary WMS and WCS software stack connects via standard interface to any existing ERP or warehouse management system, eliminating costly rip-and-replace migrations.
Most pallet shuttle systems require different hardware for cold store, ambient, and everything in between. The 4D shuttle AS/RS is engineered to operate across the entire storage spectrum.
Full performance guaranteed across a 65°C span
Same hardware, same software, same performance — regardless of operating temperature.
Essential coverage for lower-intensity operations.
24/7 support with warranty protection included.
Full-spectrum protection for mission-critical warehouses.
High-level design and commercial framework
LOI signed, Digital Twin simulation runs
Final purchase order and production release
Racks, shuttles, 72-hr test before shipment
Provisional and final sign-off with your team
Software triggers the shuttle's self-recovery routine. The vehicle drives autonomously to the nearest maintenance point without operator intervention.
If automatic recovery cannot complete, an operator approaches with a WiFi remote and manually drives the shuttle to the maintenance area — no physical entry into the rack zone required.
In the rare worst-case scenario, only the affected zone is paused. All other shuttles reroute around the blocked area. A technician extracts the unit manually with a spare shuttle deployed immediately.
Everything you need to know about warehouse automation, robotics integration, and deploying intelligent Rainbow Dynamics automation systems.
The 4D Shuttle is engineered to handle heavy loads efficiently, carrying up to 2,000 kg per shuttle. For palletized loads, the shuttle works in tandem with the integrated rack lift, delivering the same capacity into dense storage lanes without slowing down operations. Rainbow Dynamics designs these systems to maintain precision and safety even under maximum load conditions, ensuring that warehouses can optimize high-density storage and achieve faster throughput without compromising equipment performance or inventory integrity.
Yes. The 4D Shuttle operates across a temperature range from -25°C in cold storage to +40°C ambient conditions. Its hardware and software remain consistent across this range, and Lithium Iron Phosphate batteries function reliably without degradation in cold environments. Rainbow Dynamics configures these systems to maintain performance and safety, allowing warehouses to use the same automation hardware for both temperature-sensitive and ambient storage areas.
Unlike traditional pallet shuttles, which often require manual repositioning or separate lifts, the 4D Shuttle moves autonomously across rack levels, storage lanes, and crossing points. It can reverse direction at rack crossings in just three seconds, allowing continuous, fluid movement without human intervention. This design significantly increases throughput and minimizes idle time compared to standard systems. Rainbow Dynamics implements these advanced movement patterns to ensure efficient storage utilization and faster order fulfillment, even in warehouses with complex layouts or mixed pallet sizes. The shuttle’s precision control also reduces collision risks and ensures smooth integration with conveyors, lifts, and other automation systems within the facility.
Yes. The 4D Shuttle’s proprietary WMS and WCS platforms are designed for seamless integration with any existing warehouse management system or ERP. This eliminates the need for costly system replacements or upgrades. Rainbow Dynamics ensures that the shuttle system communicates in real time with your current software, maintaining accurate inventory, tracking movements, and coordinating order fulfillment across the warehouse.
Automatic self-recovery to the closest maintenance point, for operations that require manual control assistance, use WiFi, and in rare cases, partial zone shutdown followed by manual extraction is employed, such that other shuttles divert around the affected zone. Rainbow Dynamics designs these systems with robust fault-tolerance and redundancy, ensuring minimal impact on throughput and maintaining continuous warehouse operations even in the event of an unexpected shuttle malfunction.
Tell us your storage density challenge, throughput target, or temperature requirement.