NEWS NEWS NEWSREPROCESSING IS THE FIRST PRODUCTION STEPERDWICH PRESENTS FULLY AUTOMATED SOLUTION FOR MATERIAL RECOVERYDriven by the high development pressure onautomobile manufacturers and suppliers,lightweight construction has been gainingmore and more importance in this industryfor several years now. Aluminium isregarded as one of the most importantmaterials for achieving the desired weightreduction. Even before the trend towards e-mobility, the proportion of aluminium percar increased rapidly, so that an average ofaround 140 kg is currently used per vehicle,and the trend is rising. In order to be able toproduce as economically and resourceefficiently as possible, the recycling of scrapparts and casting residues is becomingincreasingly important for the foundryindustry. The recycling experts at ERDWICHZerkleinerungs-Systeme GmbH will bepresenting the RM 1350/2 twin-shaft ripperand the M600/1 single-shaft shredder at thisyear's EUROGUSS in Düsseldorf, twosystems from their portfolio that can beintegrated into complete production lines asfully automated solutions. The recycling ofscrap parts thus becomes the first step in thefoundry's production cycle.Even in modern production-optimizedfoundries, it is almost impossible tocompletely avoid faulty castings, castingresidues or punching waste in themanufacturing process. Not only e-mobility,but also the general trend towardslightweight construction in the automotivesector has led to a sharp increase in thedemand for aluminium in recent years, andthe quantity of scrap material has increasedaccordingly. Whereas previously spruesystems and faulty castings were normallycollected in containers, until a sufficientquantity was available for recycling and resmelting,more efficient measures are nowrequired. In view of rising raw materialprices, it is also in the interest of foundries toreturn scrap material to the productionprocess as quickly and efficiently as possible.In order to enable energy-efficient resmelting,the parts must be shreddedbeforehand.Faulty castings of gearbox housings orentire engine blocks as well as axle bearings,battery housings and sprue spiders are justsome of the challenges that a reprocessingplant has to face. ERDWICH Zerkleinerungs-Systeme GmbH offers, with the RM1350/2twin-shaft ripper and the M600/1 singleshaftshredder, solutions that meet therespective requirements. Both systems can beretrofitted into existing production lines topick up and shred the rejects directly wherethey are produced. The handy sizedaluminium parts can then be transporteddirectly back to the furnace systems viaconveyor belts or collected in containers. Thevolume of cast parts is reduced by 50 to 60percent. This eliminates the need for spaceconsumingand expensive intermediatestorage of the scrap material. In particular theRM 1350/2 is equipped to meet allchallenges, thanks to its variable cutting unitsize, with a width of 1,350 mm and a lengthof 1,500, 2,000 or 2,500 mm. The knives of thecutting unit are made of low-wear specialsteel and can be inserted individually toenable different cutter sequences dependingon the material to be shredded. This methodenables the knives to be prepared orsharpened as required without having toremove the entire shaft. Depending on theapplication, drive loads from 45 kW to 132kW can be selected to achieve a throughputof 1.5 to 5 tonnes per hour. The machinecontrol also allows alternating forward andreverse motion of the shafts to increasethroughput for bulky parts. The speciallydeveloped PLC control, with automaticreversing and switch-off, protects themachine from damage caused by overloadshould bulky components jam in the ripper.For an optimal integration of theshredding plants into existing productionlines, the experts from ERDWICH offer anon-site visit to get an overview of the spatialconditions. Based on this, a constructivesolution is worked out which makesoptimum use of the available space whilstproviding for the necessary plant size. Themachine is integrated into completeproduction lines as a fully automatedsolution in order to ensure that the shreddedmaterials are returned to the productionprocess as quickly as possible. The return ofthe metal parts is carried out either viaconveyor belts or by collecting them incontainers and are then melted down again.The shredding also means that the energyconsumption of the melting furnaces can bereduced, as the small parts can be melteddown more easily and quicker. Thereprocessing of the scrap parts thus becomesthe first production step in an energyefficientand cost-saving production cycle.At EUROGUSS 2020 in Nuremberg,ERDWICH will present both the M600/1 anda cutting unit of the RM 1350/2. ManagingDirector Harald Erdwich and his colleagueswill be available for initial discussions andconcrete enquiries in Hall 9, Stand 9-315.www.erdwich.com20 Manufacturing Machinery World, February 2020
SUPPLIERS OF QUALITY USED MACHINE TOOLSCINCINNATI V 750 VMC C/WFANUCHARDINGE CONQUEST T 42XYZ VM 3500 CNC MILLBRIDGEPORT VMC 800 30COLCHESTER TRIUMPH 2000LATHE C/W DRO SYSTEMMAZAK QT 30 CNC LATHEHARDINGE VMC 600C/W FANUC CONTROLJONES & SHIPMAN 540 GRINDERS( 5 )AJAX 330 BM BANDSAWMATSUURAMC-1000VGXJONES & SHIPMAN 1300 COLCHESTER TRIUMPH 2000REFURBISHED LATHEWANTED SURPLUS MACHINESHAAS MINIMILL 2012 MACHINEKELLENBERGER KEL-VARIA RS175 – 1000 CNC GRINDERC/W HEIDENHAIN CONTROLHARDINGE TALENT 6/45 CNCLATHE C/W FANUC CONTROLJAKOBSEN 1832 SURFACEGRINDER