OPEX® Perfect Pick


Your inventory at your fingertips

The Perfect Pick® is an energy-efficient automated solution for goods-to-person picking and stocking. Using proven iBOT™ technology to retrieve and putaway goods, Perfect Pick is also the fastest in-aisle picking solution in the industry today, running at up to 1000 picks per hour.

Perfect Pick has a simple, flexible design allowing for complete scalability in both speed and size. The self-contained, standalone system can be easily expanded by adding modules or more aisles, and additional iBOTs can be quickly introduced or removed from the system in a matter of minutes. The Perfect Pick HD provides even more benefits with twice the storage capacity. The Perfect Pick system is an ideal solution for fast, flexible, and scalable order fulfillment that adapts to ever-changing business demands and cycles.

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See Perfect Pick at work





How Perfect Pick works

Items are placed into designated totes by an operator at the workstation. The totes are then transported by an iBOT into the system for storage until the items within are needed to fill an order. When items are needed, an iBOT retrieves the designated tote and delivers it back to the workstation, where the operator picks the item specified and places it into the order box for shipping. 

The iBOTs are multidirectional wireless vehicles contained within the system that can pick and store totes and trays on either side of the aisle simultaneously. This eliminates the need for elevators/lifts, conveyors, or transfers. iBOTs travel along tracks integrated within the storage racks. They are powered by ultracapacitors and capture regenerated energy as they descend through the storage racks. iBOTs bring totes or trays directly to the pickers and tilt and adjust to their height for ergonomic picking. iBOTs can provide system throughput rates of up to 1000 dual-cycles per hour.



Perfect Pick

  • Load weight capacity: 80 lbs (including tote)
  • Rack length: Scalable up to 204.9' (62.45 m)
  • Rack height: Scalable up to 32.5' (9.90 m)
  • Rack width: 9’ (2.74 m)
  • Tote dimensions: 20" x 30” x 8/10/12/14" H (50.8 cm x 76.2 cm x
    20.32/25.4/30.48/35.56 cm H)
  • Storage locations: 4,274 (with 12" high totes)
  • Cubic feet of storage: 14,573 ft3
  • Square feet required: 2,459 ft2
  • Tote presentation: Up to 500/hr per workstation
  • up to 20 iBOTs


Perfect Pick HD

  • Load weight capacity: 80 lbs (including tote)
  • Rack length: Scalable up to 204.9' (62.45 m)
  • Rack height: Scalable up to 32.5' (9.90 m)
  • Rack width: 14’ (4.27 m)
  • Tote dimensions: 20" x 30” x 8/10/12/14" H (50.8 cm x 76.2 cm x
    20.32/25.4/30.48/35.56 cm H)
  • Storage locations: 8,548 (with 12" high totes)
  • Cubic feet of storage: 29,145 ft3
  • Square feet required: 2,869 ft2
  • Up to 500/hr per workstation
  • up to 22 iBOTs


  • Substantial storage density and superior throughput
  • Competitively priced entry point creates a justifiable ROI
  • Ability to control the speed of iBOTs
  • Expandable over time by adding racking modules or additional iBOTs
  • Ergonomic workstations at one or both ends of the system
  • Small footprint
  • Energy efficient ultracapacitor powered iBOTs
  • Configurable software platform that easily interfaces with workers


Why use an Ultra High Capacitor bank rather than a battery? The Ultra High Capacitor bank can withstand many more cycle than a battery, it is lighter in weight overall, and it doesn’t degrade or have a memory like a battery.  They are also quick to charge, making them perfect for regenerative braking.

What initiates the switching gates to be repositioned for an iBOT to continue horizontal or move vertically? The system is “self-gating” which means each iBOT initiates the gate switching locally. This is a simpler and a more reliable method.

Can I put multiple sized corrugated cartons on an iBOT tray? Yes, provided you stay within the weight and cube dimensional requirements.

Can I put an operator workstation anywhere around the perimeter of the Perfect Pick racking system? Perfect Pick can have integrated workstations at the front and rear of each aisle.

Are the totes custom and what is the availability?They are currently custom because the iBOT has an extractor that pulls the tote in from the cantilever shelf.

What would expected down-time be if there is a failure relative to an obstruction? Worst case would be approximately 10 minutes for a technician to correct the issue.

How are cycle counts conducted within the Perfect Pick? They can be programmed in by many methods: highest velocity, highest value, just before a replenishment occurs, etc. They physically occur at the bump out (workstation).

Do replenishment and picking operations happen at the same end of the Perfect Pick? Also, do these functions happen in tandem? They can occur in parallel or replenishment can occur during a different shift.

What makes the Perfect Pick HD different from the regular Perfect Pick? The Perfect Pick HD offers double the storage capacity by storing bins two-deep on either side of the aisle, instead of single bins. Additionally, the Perfect Pick HD includes an Over-Height Detect system, which prevents overflowing totes that may lead to jams. 



  • Knipper case study perfect pick HD goods to person order fulfillment conveyor
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  • Knipper-Case-Study-perfect-pick-HD-iBOT-thumb
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