High-density warehouse automation, end to end
Spacemaker delivers pallet shuttle systems for the full range of warehouse environments — ambient, chilled, and deep-freeze down to -40°F. Two-way and four-way shuttles for high-density pallet storage, backed by design, engineering, software, installation, commissioning, and service from one team.
Two-way and four-way pallet shuttles
Spacemaker manufactures two-way and four-way pallet shuttles for ambient and cold-chain warehouse operations. Each system is designed, built, and supported in-house.
DualAxis Pro®
Heavy-duty two-way shuttle for the full cold-chain and ambient range. Rated down to -40°F / -40°C. Available internationally as our flagship two-way shuttle for high-density warehouse automation.
Learn moreQuadAxis Pro®
Four-way shuttle with 2D movement and elevator access across multi-level racking. Scalable, multi-directional automation for complex warehouse operations. Rated -13°F to 113°F (-25°C to 45°C).
Learn moreHow pallet shuttles unlock warehouse density
Pallet shuttle systems solve a specific warehouse automation problem: fitting more pallets into the same footprint without losing throughput. Shuttles move pallets inside deep racking lanes, eliminating the drive aisles that conventional racking requires. The result is dramatically higher storage density and better warehouse efficiency within the existing building envelope.
A shuttle is a low-profile robot that travels inside a rack lane, transporting pallets to and from the lane entry point. Reach trucks, forklifts, AGVs, or stacker cranes handle the aisle face; the shuttle handles everything behind it. Operations run under Spacemaker’s Warehouse Execution System, which coordinates the fleet, monitors battery state, and sequences storage and retrieval commands.
Two-way shuttles (DualAxis Pro, Pallet Mole) travel along a single lane and suit deep-lane, single-direction operations. Four-way shuttles (QuadAxis Pro) traverse both lanes and cross-travel lanes, and integrate with elevators to reach any level of multi-story racking. The right choice depends on throughput requirements, rack geometry, and the degree of multi-directional movement the operation needs.
Spacemaker shuttles operate across the full cold-chain spectrum, from ambient warehouse conditions down to -40°F (-40°C) deep freeze. That range makes them suited to frozen food, fresh produce, dairy, pharmaceutical cold chain, and any operation running cold storage solutions at scale.
Shuttles drop into standard selective and drive-in rack profiles (CHEP, EUR, GMA pallet standards) and integrate with existing WMS and ERP systems through Spacemaker’s software suite. The same shuttle fleet can run in new builds or retrofit into existing warehouse structures.
Where Spacemaker shuttle systems run
Spacemaker pallet shuttle systems run across a range of high-density warehouse environments wherever density, throughput, and reliability matter. Cold storage and deep-freeze facilities make up roughly half of our installed base; the rest spans food and beverage, 3PL, manufacturing, e-commerce, and retail.
Cold storage and refrigerated warehousing
Bulk buffering and deep-lane storage at -40°F deep-freeze, replacing drive-in racking with recoverable automation across the cold chain.
Food and beverage distribution
Inventory buffering and high-throughput staging across dairy, beverage, protein, frozen, and packaged goods production.
Third-party logistics
Shared-use distribution centers where storage density drives cost-per-pallet across mixed-tenant operations.
Manufacturing and industrial
Raw-material and finished-goods staging adjacent to production lines, with automated buffering between process steps.
E-commerce fulfillment
Compressed buffer storage that frees floor space for pick-and-pack lanes and cross-dock operations downstream.
Retail distribution
Regional DC operations consolidating high-density storage to support multi-store replenishment cycles.
From design through service,
under one roof
Spacemaker handles every phase of a pallet shuttle deployment in-house. One contract, one roadmap, one team accountable from specification through long-term support.
Design
Storage study, throughput analysis, system specification, and rack layout for every facility before quoting.
Engineering
Mechanical, electrical, and controls engineering by the same team that owns the deployment to handover.
Software
MGM®, MultiWare Manager®, AnyWare®, and 3DWare® built in-house, plus custom WMS and ERP integrations.
Manufacturing
Shuttle hardware assembled, configured, and tested at the Ocoee facility before delivery to site.
Installation and Commissioning
On-site deployment, WMS handshake, operator training, and handover handled by Spacemaker’s own crews.
Service and Support
Spare parts, software updates, and 24/7 technical response under the SOS® care package across the USA and UK.
The stack that runs it
Every Spacemaker shuttle runs under a warehouse automation software stack built by the same team that designs the hardware. MGM® handles mesh networking across the fleet. MultiWare Manager® is the Spacemaker warehouse management system. AnyWare® is the warehouse control system that coordinates shuttles, stacker cranes, AGVs, AMRs, and conveyors in mixed-automation facilities.
Explore the softwareCommon questions about pallet shuttle systems
Category-level answers for buyers evaluating warehouse automation. For product-specific detail, see the individual shuttle pages.
What is a pallet shuttle system?
A pallet shuttle is a low-profile robotic cart that travels inside a rack lane, transporting pallets between the lane face and their storage positions. Pallet shuttle systems combine the shuttle fleet, the rack structure, and a control layer that coordinates storage and retrieval. They replace drive-in racking and block-stack storage with high-density automation that keeps every pallet accessible without losing throughput.
How does a pallet shuttle increase warehouse density?
Conventional racking requires drive aisles between each row of pallets, which can consume 40% or more of the floor plan. Pallet shuttles move inside the rack lanes themselves, so those aisles disappear. Lanes 30 to 50+ pallets deep become practical, and the same building envelope holds substantially more pallets. That’s the core warehouse density gain, and it’s why shuttle systems exist.
What is the difference between a 2-way and 4-way pallet shuttle?
Two-way shuttles travel along a single lane. They are the workhorse of high-density pallet storage and suit deep-lane, single-direction operations — cold storage bulk buffering, food and beverage staging, 3PL facilities. Four-way shuttles travel both along lanes and across lanes, and pair with elevators to access multi-level racking. They fit operations that need multi-directional movement across a large three-dimensional storage volume.
What temperatures can Spacemaker shuttles operate in?
Spacemaker pallet shuttles operate from standard ambient warehouse conditions (up to 122°F / 50°C) down to -40°F (-40°C) deep freeze. DualAxis Pro and Pallet Mole are rated across the full range. QuadAxis Pro is rated from -13°F (-25°C) upward and is best suited to chilled and ambient operations. For true deep-freeze cold storage warehouses, DualAxis Pro is the right choice.
How deep can a pallet shuttle lane go?
Typical installations run 30 to 50 pallet positions deep, with some projects extending beyond. The practical limit depends on battery runtime, rack tolerances, and throughput targets. We size each lane to the operation: short, fast lanes for high pick rates; long lanes where density matters more than cycle time.
Can pallet shuttles replace drive-in racking?
Yes. Shuttle systems deliver the density of drive-in racking while keeping every pallet recoverable, and they remove the forklift risk and product damage that drive-in operations accept as a cost of density. Shuttles also open up four-way and multi-level configurations that drive-in racking cannot support.
Does Spacemaker provide the software as well as the shuttle?
Yes. Spacemaker builds the full software stack in-house: MGM® for mesh networking, MultiWare Manager® for warehouse management, AnyWare® for warehouse control, and 3DWare® for visualization. Shuttles, network, and software are engineered by the same team. See the Software Solutions page for detail.
Can pallet shuttles integrate with existing racking and WMS systems?
Yes. Spacemaker shuttles drop into standard selective and drive-in rack profiles (CHEP, EUR, GMA pallet standards) and integrate with existing WMS and ERP environments through REST and message-queue interfaces. Retrofits into existing racking and new-build designs are both common deployment paths.
Does Spacemaker handle installation and ongoing service?
Yes. Design, engineering, software, manufacturing, installation, commissioning, and ongoing service are all in-house. Every project runs under one contract and one point of accountability, with service support operating from both Ocoee, Florida and Nuneaton, UK.
What industries use pallet shuttle systems?
Cold storage and refrigerated warehousing are the largest segment. Food and beverage distribution, 3PL and logistics providers, manufacturing and industrial warehousing, e-commerce fulfillment, and retail distribution all deploy shuttle systems for high-density pallet storage and warehouse efficiency gains.
Let’s talk warehouse automation
Tell us about your storage challenge and operational goals. We’ll walk you through the shuttle system that fits, from specification through service.
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