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f+h Intralogistics 4/2014

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f+h Intralogistics 4/2014

Warehousing 02 The

Warehousing 02 The storage and retrieval of the pallets is done by eight energy efficient storage and retrieval machines, type Exyz ed components at our factory, delivery and installation time was considerably more efficient.” This was another reason why SSI Schaefer was able to hand over the entire project in Vietnam ready-for-use including construction within only 18 months after receiving the order. Within 60 minutes, the storage and retrieval machines move 92 pallets from production into the high-bay warehouse and store them. The rail-guided vehicle system can in parallel transport up to 184 retrieval pallets per hour from the high-bay warehouse into the shipping area – of those, 147 are full pallets and 37 buffered pick pallets or mixed product pallets. The loop of the rail-guided vehicle system transports the retrieval pallets to a double transfer position which is located directly opposite the front side of the high-bay warehouse. From this point, the pallets are forwarded to a conveying system which serves two shuttle cars and one vertical conveyor. Each shuttle car serves eight shipping lanes with a buffer of up to 16 pallets per shipping lane and each lane consisting of gravity fed conveyors. Each lane services a batch which is loaded on the dispatch truck. Optimized compilation of order pallets The vertical conveyor moves the pallets into the second floor above the shipping conveyors. There, the picking locations for the case picking are installed on an area of nearly 1,200 m 2 . The lift transfers the pallets to a conveying system which serves two shuttle cars. They transfer the pallets to the rear of a double-deep picking lane made of gravity roller conveyors. A total of 53 picking lanes are available. The picking is done using twelve electric pallet movers which serve as mobile picking cars. The employees get picking instructions via WLAN on the integrated pick-terminals (Image 03) of the picking cars. The cases are then picked from the front pallet on pick buffer lanes directly onto the shipping pallets. The logistics software „Wamas“ not only cares for route-optimized picking, but also considers restrictions for a stable and volume-optimized compilation of the order pallets. After the case picking is completed, the order pallets are wrapped and labeled. Afterwards they are put on a conveying system that moves them back to the lift. Via the lift, the pallets are returned to the conveying system on the bottom level. According to the specifications of „Wamas“, the prepicked order pallets are forwarded to the transfer positions at the rail-guided vehicle system. Once on the rail-guided vehicle loop, the picked pallets can be sent to the warehouse storage where they are buffered for order consolidation or they can be sent back to the pallet conveyor dispatch lane area. „Wamas“ calculates and controls the sequenced supply according to the order. “With the electric rail-guided vehicle system we can use the same system component for all storages and retrievals,” summarizes Dung. “No cross traffic, but efficient processes.” This is illustrated by the About SSI Schaefer throughput data. Regardless of the complex material flows, 188 pallets per hour can be facilitated in shipping, thereof 147 fullywrapped pallets and 41 pick pallets. The current production volume of around 2,000 pallets per day is turned over in one shift. “The process-optimizing control by the warehouse management system furthermore reduces our throughput times and has nearly reduced our error rate to zero”, explains Dung. “The entire solution excellently supports our growth strategy“. Photos: SSI Schaefer www.ssi-schaefer.com 03 The logistics software „Wamas“ not only cares for route-optimized picking, but also considers restrictions for a stable and volume-optimized compilation of the order pallets The product range of SSI Schaefer/Fritz Schaefer GmbH, Neunkirchen/Germany – at the same time international headquarters of the SSI Schaefer Group – includes the core area of warehouse equipment as well as workshop, plant and office equipment, plus a variety of waste collection and recycling containers. Typical products are storage and transport containers, shelving, pallet racks, cantilever and mobile racking systems, which form the basis of manually operated or fully automated storage systems. Fritz Schaefer founded the company in 1937, and today SSI Schaefer has offices around the world. SSI Schaefer Noell GmbH, Giebelstadt/Germany , complements the service portfolio as a specialist for comprehensive logistics systems. As a general contractor the company has already implemented more than 300 logistics systems worldwide. The range goes from system planning and consulting to the implementation of turn-key systems and customized after-sales services. The portfolio is completed by innovative IT solutions complying with inhouse standards as well as SAP technology standards. SSI Schaefer Peem GmbH, Graz/Austria, specialises in modular order-picking technology. The company designs, develops and produces highly-dynamic small parts conveyor systems and automatic order-picking systems including customized software. As a general contractor, Salomon Automation GmbH, Friesach near Graz/Austria, provides complete, customised solutions for manual and fully automated warehouse systems. The company supports its customers in every aspect, from the solution-finding and software implementation process to the training of the warehouse staff. With the logistics software “Wamas”, Salomon Automation contributes to comprehensive visualisation and optimisation of the customers’ warehouse processes. 34 f+h Intralogistics 4/2014

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