Unigrip 3.0– fast access for metal wholesalers

by Hans Diederichs

The increased demand in the cut-to-size sheet segment was really making storage space tight at AMCO Metall Service GmbH’s premises, so the Bremen-based company was searching for a new storage solution – and KASTO came to the rescue. The specialist company from Achern in Baden, Germany installed a Unigrip 3.0 long goods storage system. Since then, AMCO has enjoyed increased productivity and fast access to materials and finished parts.

In 1980, a group of experts founded AMCO Metall Service GmbH with the aim of reliably supplying commercial customers with semi-finished products made of non-ferrous (NF) metals. Today, the company has 270 employees and an annual turnover of around €100 million. Each year, AMCO supplies 25,000 tons of non-ferrous metals to customers in the mechanical & plant engineering, metal processing & construction and transportation & shipbuilding sectors.

7,000 tons of materials made of brass, copper, aluminium and bronze are permanently stored on an area of 55,000 m². The company’s business is based on the NF metal trade, cast sheet production and CNC (Computerized Numerical Control) machining. Bars, profiles, plates, and sheets are cut to size in the Service Centre in accordance with customer requirements. Low-stress cast sheets which are challenging to handle are produced in various thicknesses and dimensions. AMCO has a modern machine park with various sawing centres, as well as 3- and 5-axis machining centres, and the company also offers CAD/CAM-supported finishing.

Space had become scarce

The positive business development in the parts pre-cutting and order picking segments presented AMCO with a new challenge: “We needed additional storage space to expand this growth segment. We also needed to renew our shelving technology,” says Jan Hendrik Schmidt, Managing Director of AMCO. The requirements were clearly defined: The new solution had to ensure high availability and make efficient use of the available space. Processing and picking also had to be linked to the system. Material damage caused by handling and storage had to be avoided and the AMCO decision makers also wanted to reduce the unit picking costs per order item. The Bremen-based company found a suitable project partner some 600 kilometres further south in Germany.

1,365 new storage cassettes

After the contract was awarded in October 2016, the steel structure was delivered and assembled in June 2017 – and five months later, AMCO accepted the storage facility. KASTO built its Unigrip 3.0 in Bremen with a length, width, and height of 68, 21+ and 6.7 metres, respectively. Five cassette types are available with lengths from 6.5 to 6.7 metres and a width of 1.6 metres. The load per cassette is three tons. AMCO now has a total of 1,365 new storage locations. The storage and retrieval machine (SRM) has a particularly streamlined design and travels longitudinally at speeds of between 2 and 120 metres per minute. It has laser measuring systems for precise position detection. Contour controls ensure that no goods protrude, which would hinder a smooth process.

The KASTOlogic control concept is based on consistent decentralisation. The linking of all the components such as drive controllers, manual control units and weighing electronics is carried out via the standard Profibus DP fieldbus. AMCO can create or change article data quickly and easily and receives reliable information on inventories and cassette availability. Storage zones can be managed accordingly, to optimise the SRM’s travel routes, for instance. Incoming orders are automatically assigned to the relevant processing stations. The Unigrip storage facility is used for equipping saws with sheets and remnants in accordance with the cutting plans and also for storing pre-cut parts and remnants after sawing. For the picking of customer orders, the storage system then makes sheets and cut-to-size parts available on an order-related basis. For fast fault diagnosis and help with operating problems, the KASTO Service Centre has access to the storage facility at all times via KASTO Remote Assistance. The Centre uses the Remote Desktop Protocol to remotely control all functions of the KASTOlogic. Changes to the program or parameters can be carried out cost-effectively, without the need for KASTO staff on site.

Source and photo: KASTO

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