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Negative-PUT Order Picking

Improving full case picking productivity with a world's first picking solution

 Negative-PUT l DEMATIC

The new Negative-PUT process optimizes case picking productivity by pairing suitable orders and fulfilling them through a high rate, integrated goods to the man pick module.

 

Taking advantage of a practice sometimes used by experienced pickers, the Negative-PUT process helps to reduce their workload by completing two orders with one pick. This systematic approach identifies all negative pick opportunities creating substantial productivity gains.

 

Dematic’s patented Negative-PUT software uses a number of complex algorithms to re-sequence orders to generate the highest quantity of negative pick opportunities and the optimum order fulfillment sequence for any batch of orders.  

 

The Negative-PUT process is fulfilled through ergonomically designed goods to the man pick modules. Bringing stock to the picker and ‘putting’ the stock to orders, instead of transporting orders past stock eliminates the time wasted travelling between picks, further optimizing productivity and throughput.

Case Study: Coca-Cola Amatil

 
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Negative-PUT: How it works

The Negative-PUT software interfaces with the customers WMS, requesting stock for the orders, and notifying the WMS when an order has been completed and is ready for further processing or dispatch. 

 

Full and empty pallets required for the Negative-PUT pick modules are loaded by forklift onto integrated pallet conveyors.

 

Each time a new order is to be picked, the conveyors automatically deliver two full pallets of stock (donor pallets) and two empty pallets (put pallets). 

 

Large screen workstations provide clear visual instructions for the pick module operators, with Dematic’s Negative-PUT software directing the picker to take a quantity of cases from the first ‘donor’ pallet and place it onto the first ‘put’ pallet. They may then be asked to take a further quantity of stock and place it onto the second ‘put’ pallet. They may then be instructed to remove a quantity of cases from the second ‘donor’ pallet and place them to the first and second ‘put’ pallets. 

 

In the above example, the Negative-PUT process has completed four work orders with the minimum possible number of case movements. 

 

The stock quantity on the two ‘donor’ pallets now matches that required to fulfill two orders, while the cases on the ‘put’ pallets form the base pallets to which any remaining items required for the two orders will be picked conventionally. 

 

Check-weighers confirm the operator has picked the correct number of cartons, and the integrated conveyor system transports the pallets to the outfeed station.

 
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