| System Configuration | Single-deep, multi-deep, goods-to-person, or buffer storage | Shuttles move totes horizontally on storage levels, while lifts or conveyors transfer totes between levels and workstations. | Improves storage density and reduces unnecessary travel by operators. | E-commerce fulfillment, spare-parts storage, retail distribution, and manufacturing supermarkets. | Is the system intended for storage, order picking, sequencing, buffering, or a combination of these tasks? |
| Storage Tote Compatibility | Common tote footprints include approximately 400 × 300 mm, 600 × 400 mm, and other application-specific sizes. | The shuttle, rails, lift, conveyor, and rack structure are designed around the selected tote dimensions. | Ensures stable transport, correct positioning, and efficient use of available storage volume. | Standard plastic totes, carton containers, reusable bins, and selected trays. | What are the tote outside dimensions, usable internal dimensions, material, condition, and bottom design? |
| Load Capacity | Often about 30–50 kg per tote for light-duty systems; heavier designs may support higher loads. | The shuttle carries the tote on powered wheels or a platform and places it into a storage location. | Allows the system to handle a broad range of inventory weights when properly engineered. | Consumer goods, electronics, cosmetics, packaged food, and industrial components. | What are the average, maximum, and peak tote weights, and how frequently will maximum loads occur? |
| Storage Height | Usually selected according to building height, fire protection, rack design, lift stroke, and tote handling requirements. | Vertical lifts move totes between storage levels and input or output conveyors. | Uses vertical building space and can provide high storage density in a compact footprint. | Facilities with high ceilings or limited floor area. | What clear height, floor loading, sprinkler arrangement, maintenance access, and emergency access are available? |
| Throughput Requirement | Measured in totes per hour, orders per hour, or order lines per hour; actual capacity depends on layout and workload. | Multiple shuttles, lifts, conveyors, workstations, and control software are balanced to meet the required flow. | Supports scalable handling capacity and helps reduce manual travel. | High-volume e-commerce, omnichannel distribution, and fast-moving spare-parts operations. | What are the average and peak receipts, replenishment tasks, picks, dispatches, and required service windows? |
| Shuttle Operating Mode | One shuttle per level, multiple shuttles per level, or shuttle fleets with coordinated traffic control. | Vehicles receive missions from a warehouse control system and travel to assigned storage or retrieval locations. | Multiple shuttles can increase availability and throughput when the system is correctly zoned. | Operations requiring high availability, short response times, or future expansion. | How will traffic conflicts, charging, vehicle replacement, and peak-period mission allocation be managed? |
| Power and Charging | Rail-based power, battery-powered operation, or automatic charging zones, depending on system architecture. | Power is supplied continuously or batteries are recharged during planned operating intervals. | Supports continuous operation while allowing different maintenance and layout strategies. | Single-shift, multi-shift, and extended operating schedules. | What operating hours, battery life, charging time, spare-battery policy, and electrical standards apply? |
| Control Software | Warehouse control system, warehouse management system interface, inventory tracking, and equipment monitoring. | Software assigns storage locations, creates transport missions, records inventory status, and coordinates equipment. | Improves traceability, inventory accuracy, and workload balancing. | Facilities requiring batch picking, FIFO or FEFO rules, lot tracking, or integration with enterprise systems. | Which communication protocols, APIs, host systems, reporting functions, and cybersecurity controls are supported? |
| Picking Strategy | Person-to-goods, goods-to-person, batch picking, zone picking, or put-wall-supported picking. | Stored totes are delivered to operators or replenishment stations according to order priorities. | Can reduce walking distance and improve ergonomic conditions at picking stations. | Online retail orders, healthcare supplies, apparel accessories, and small-item distribution. | What are the SKU count, order profile, units per order, picking accuracy target, and station ergonomics? |
| Inventory Characteristics | Small and medium-sized items with relatively stable tote dimensions and controlled handling requirements. | Items are stored in totes and retrieved according to location, order, batch, or product rotation rules. | Provides organized access to high-SKU inventory and supports controlled replenishment. | Small parts, pharmaceuticals subject to applicable regulations, cosmetics, electronics, and consumer products. | Are products fragile, temperature-sensitive, hazardous, dusty, liquid, irregularly shaped, or subject to expiry control? |
| Integration Equipment | Conveyors, lifts, barcode scanners, weighing stations, labeling equipment, robotic arms, and packing stations. | Peripheral equipment connects storage levels with receiving, picking, packing, and shipping processes. | Creates a continuous material flow and reduces manual handling between process steps. | Automated distribution centers and production logistics areas. | Which processes should be automated first, and where are accumulation, inspection, exception, or manual intervention points needed? |
| Safety Features | Guarding, access doors, emergency stops, light curtains, safety scanners, interlocks, and controlled access zones. | Safety systems prevent or limit access to moving equipment and stop operation when unsafe conditions are detected. | Supports safer operation and helps meet applicable workplace and machinery requirements. | All tote shuttle installations, especially systems integrated with personnel workstations. | Which local machinery, electrical, fire, occupational safety, and risk-assessment requirements apply? |
| Reliability and Maintenance | Designed around duty cycle, component service intervals, spare parts availability, and preventive maintenance procedures. | Monitoring functions identify equipment status, faults, and maintenance needs before major interruptions occur. | Helps control downtime and supports predictable operating costs. | Continuous or high-utilization warehouses where system availability is critical. | What are the response time, remote support, local service coverage, spare-parts lead time, and preventive maintenance requirements? |
| Scalability | Expandable by adding storage levels, shuttle vehicles, workstations, lifts, conveyors, or software capacity. | The initial design reserves suitable interfaces, space, controls, and structural capacity for later expansion. | Allows capacity to grow with order volume and inventory requirements. | Growing businesses, seasonal operations, and multi-stage automation projects. | Can future equipment be added without shutting down the entire system or rebuilding the rack structure? |
| Application Match | High-SKU storage, order buffering, sequencing, rapid picking, or line-side replenishment. | The system is configured around the required combination of storage density, access frequency, and material flow. | Improves the likelihood that automation delivers measurable operational value. | Distribution centers, manufacturing plants, spare-parts hubs, and omnichannel fulfillment facilities. | Does the proposed design match the actual demand pattern rather than only the maximum theoretical capacity? |