Efficient warehouse logistics with three high-bay warehouses
MINDA's intralogistics solution allows for a wide variety of material flows and routings within the plant. The software strategies adapt to the dynamic changes in daily production. Special emphasis is placed on combining different types of storage: directly after the creation of corrugated boards, the formats are transported to various storage types via an intelligently connected conveyor system. One target for the calculation of the storage capacity was to be able to provide around 5 million square meters of corrugated board for conversion at any time. Redundancy for process reliability was also required. For this reason, two high-bay warehouses, each with three aisles for formats up to 3600 mm in length, as well as up to 4500 mm in length and 2800 mm in width, were connected.
The two warehouses disconnect the production from the conversion of the corrugated board and thus form the backbone of the warehouse logistics in the plant. This ensures high availability for conversion.
To ensure independence between the cycle-based high-bay warehouses and the conversion, an area storage system was installed in front of the converting machines, which provides a stock for the next few hours (frozen zone) for each converting machine.
Transportation from the corrugator to the high-bay warehouse and on to conversion takes place without internal labels on the stacks, as data tracking via the secure MINDA system offers full transparency at all times.
Intelligent conveyor technology and machine connection
To ensure consistent efficiency improvements, all transfer cars in the plant are designed with two conveyors to enable parallel transport of two blocks, thereby significantly increasing the cycle rate.
The converting machines are connected via these transfer cars and buffer zones. Stacks of corrugated board larger than 4500 mm can, for example, be stored separately in a corresponding conveyor storage.
The machines are supplied according to demand and with anticipation so that sufficient material is always available. Another key feature of the project is the fully automated feeding of protective and intermediate sheets from the corrugator up to the fully automated palletizers.
Fully automatic pallet securing lines
In the entire plant the transport is done without pallets. The stacks built of corrugated cardboard are only positioned centrally on pallets in the pallet securing lines. This is done with the MINDA pallet loading stations BoP (block on pallet) where the goods are carefully put on pallets. Due to the high output rate in the final expansion stage and the variety of pallet types, cover plates and cover sheets, this also requires sophisticated logistics and space-saving storage of the necessary carrier pallets. Thus, a further high-bay warehouse with one aisle was planned here, so that the supply of empty pallets is ensured for a long time without having to refill.
A third high-bay warehouse has therefore been specially designed for storing empty pallets of different sizes, capping materials and protective sheets. It offers space for up to 17,500 Euro-pallets and supplies the two BoP loading stations and the capping material robots with the required material fully automatically.
This means that in the entire plant a total of seven storage and retrieval machines are in operation within the three high-bay warehouses.
The highly complex area for pallet securing is provided with protective and capping material, and the stacks are strapped and wrapped. A total of 10 linear robots within the pallet securing system ensure the fully automatic handling of empty pallets and the positioning of protective sheets and capping material.
Since in-house transport takes place without labels, labeling is done fully automatically via the MINDA EMIL system (Economic MINDA Labeling) on up to four sides of the stacks, which ensures that the products are clearly assigned to the respective orders.
Up to 240 pallets are prepared for dispatch every hour.
Real-time transparency - control and visualization with MINDA MoveIT
The MINDA MoveIT control and visualization system represents all processes in the plant in real time. The entire material flow is mapped transparently and consistently, ensuring complete tracking of the stacks without a black box.
Prior to the storage, the blocks are weighed and measured to ensure that they meet the requirements of the respective storage areas. The storage strategy considers the format, weight and subsequent machine allocation. The interplay of data analysis, process intelligence and real-time control imposes the highest demands on system architecture. The intelligent strategies of sequential retrieval increase efficiency throughout the plant - and all this fully automated.
Trendsetting project
MINDA developed an intralogistics system that not only reliably transports and stores the large quantities of products leaving the ultra-modern corrugator at high speeds but also ensures the necessary buffering and supply of the downstream processes. The entire intralogistics system is designed to continuously follow the production output of the corrugator - from the first stack to the finished pallet in the dispatch area.
The variety of formats and materials - including FanFold, protective sheets, intermediate sheets and special pallets - was also considered during the planning process. Automated palletizing and labelling minimize manual intervention and enable optimum dispatch preparation.
The Soenen project in Lanklaar thus impressively demonstrates how modern intralogistics solutions can raise production in the corrugated cardboard industry to a new level. As a full-service provider, MINDA has created a highly complex, fully automated system that sets standards in technical integration, operational efficiency and sustainability. The combination of sophisticated warehouse technology - such as the integration of three high-bay warehouses - high-performance conveyor technology and intelligent control, all from a single source, make this plant a benchmark project for the industry.
