Robotic Cube Storage System

The ASRS Robotic Cube Storage System is a high-density, automated goods-to-person storage solution for distribution centers. By utilizing a modular aluminum grid framework, autonomous top-of-grid robots vertically stack and retrieve standard storage bins, maximizing vertical storage capacity by up to 400% compared to conventional selective pallet racking.

The system operates across three functional tiers:
Grid Structure: A self-supporting structural aluminum grid anchored to the floor, housing columns of interlocking bins.
Top-of-Grid Robots: Battery-powered autonomous mobile robots traversing dual-axis rails. Equipped with lifting mechanisms, they excavate target bins by temporarily shifting overlying bins.
Workstation Ports: Robots transport retrieved bins horizontally to edge-of-grid ports where operators or robotic arms complete picking, replenishment, or packing tasks.

Volumetric Utilization: Eliminates internal service aisles, achieving up to 85% volumetric utilization of building clear height up to 12 meters.
Throughput Scalability: Throughput is decoupled from storage density. Adding robots increases pick rates (picks per hour per port), while adding grid cells increases storage volume.
Port Performance: A single standard pick port handles 250 to 450 lines per hour based on SKU velocity and bin-to-item ratios.
Fleet Redundancy: Decentralized task allocation ensures that if a robot encounters a fault, adjacent units reroute dynamically with zero system downtime.

Seismic Integrity: Grid structural calculations comply with local seismic zone requirements (Zone 2A to Zone 4).
Braking Systems: Dual-independent electromagnetic brakes on all lifting and drive axes prevent load drops during sudden power loss.
Collision Avoidance: Integration of onboard LiDAR, ultrasonic proximity sensors, and hardware-level bumper kill-switches.
Safety Interlocks: Edge ports feature optical light curtains and physical safety gates conforming to ISO 13849-1 (Ple / Cat 3).

WMS/WCS Compatibility: Integrates with existing Warehouse Management Systems via standardized RESTful APIs and TCP/IP socket protocols.
Database Synchronization: Real-time dual-database synchronization monitors bin locations, inventory levels, battery status, and maintenance cycles.
Simulation Modeling: Digital twin software models layout designs, peak order profiles, and bottleneck analysis prior to physical installation.

E-Commerce Fulfillment: Processing high-frequency, fragmented order lines for apparel, cosmetics, and electronics.
Industrial Spare Parts: Dense storage of slow-to-medium-moving hardware, automotive components, and electrical assemblies.
Cold Chain Logistics: Fully operational inside temperature-controlled freezers down to -25°C for food and pharmaceutical cold storage.
Line-Side Manufacturing Buffer: Storing work-in-progress components adjacent to assembly lines to minimize shop-floor footprint.

Custom Grid Footprint: Tailored grid layouts engineered around existing structural pillars, uneven ceilings, and irregular column spans.
Bin Variations: Choice of multiple bin heights (220 mm, 330 mm, 425 mm) with internal customizable dividers and ESD-safe material options.
Port Configurations: Customizable pick-port layouts including ergonomic tilt-bins, pick-to-light indicators, conveyor handoffs, and robotic arm integration.

Site Assessment: Laser verification of concrete floor flatness, load-bearing capacities, and utility routes.
Grid Assembly: Bolted mechanical assembly of aluminum profiles and column uprights performed by certified installation teams.
Electrical Infrastructure: Installation of busbar power distribution, private wireless network access points, and edge server integration.
Commissioning & Testing: Execution of stress tests, empty/loaded run cycles, and fault-recovery drills prior to final handoff.

Production Facility: 45,000 square meter automated production plant equipped with CNC profile machining centers, robotic welding cells, and automated powder coating lines.
In-House Quality Control: 100% load testing of robot drive assemblies, thermal aging tests for electronic control boards, and dimensional CMM checks on grid components.
Certifications: ISO 9001, ISO 14001, CE Machinery Directive compliance, and UL/CSA electrical compliance pathways available for North American markets.