Duosys Mini Load

Optimize storage & increase space efficiency

Daifuku’s DUOSYS is an incredibly fast and efficient mini load automated storage and retrieval system (ASRS) that acts as a highly-efficient sortation system. Therefore, the DUOSYS is not just an automated storage system, it also effectively sorts and groups items in less floor space and with fewer personnel than is possible with traditional sorters and other horizontal sorting systems.

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How DUOSYS Mini Load AS/RS works

The DUOSYS is laid out in two levels in order to produce a maximum storage and retrieval throughput of up to 2,200 cases per hour. Two Storage Retrieval Machines (SRM)s operate within each level. They navigate around each other without interference to perform storage and retrieval operations. The combination of two levels allows four SRM's to operate on the same rack performing up to four picks simultaneously.

Specifications for DUOSYS Mini Load AS/RS

  • Maximum throughput speed 2,200 totes or cases per hour
  • Maximum horizontal speed: 350m/min. (1,148 ft./min.)
  • Maximum vertical acceleration rates: 50m/min. (164 ft./min.)
  • Maximum load transfer speed: 1.5 seconds

The above specs may vary depending upon individual system configuration.

Features of DUOSYS Mini Load AS/RS

High throughput - The maximum throughput of up to 2,200 cases per hour is six times higher than a conventional system with the same footprint.

Lower power consumption - Because of their lightweight design, DUOSYS SRM's consume less power than older models performing similar tasks. Also, the system controls direct the movements and speed of each SRM in the most efficient manner, requesting that the closest available machine perform a storage or retrieval task at the most optimized speed. Plus the system transfers regenerative power produced by one slowing SRM to the other SRM's.

Non-stop operation - DUOSYS supports the independent operations of its four separate SRM's and the concept of zero idle time.

High maintainability - The system remains in operation while maintenance is performed on one or more of the SRM's.

Industries and Uses of DUOSYS Mini Load AS/RS

Floor Space

  • Facility at capacity; no additional storage space
  • Plans for a new facility
  • Congestion; product stored in aisle and hallways


  • Bottlenecks in material flow and production
  • Limited capacity in storage and production areas
  • Orders are becoming smaller and more frequent
  • Pick cycle times are too long


  • Frequent lost stock
  • Inventory Spoilage / Damage
  • No real-time material control
  • Poor product accessibility
  • Lack of FIFO control


  • Workers walking long distances
  • Excessive noise levels from material handling equipment
  • Safety hazards
  • Labor-intensive processes

Disjointed Operations

  • Product in the wrong storage medium
  • Multiple staging areas
  • Product is often moved from one staging area to another


  • High employee turnover
  • High labor costs
  • High training costs
  • Small labor pool

DUOSYS Mini Load AS/RS product photos


Interested in DUOSYS Mini Load AS/RS or want to know more?