Precisely! - Makino Europe

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SUCCESS STORYSTEELED FOR SUCCESSUNDER PRESSUREIn the globalised world of manufacturing it is hard to find a companywith a genuine USP. HAWE Hydraulik, a leading manufacturerof high-quality, technologically advanced hydraulic componentsand systems, is an exception to this rule. What makesHAWE so different is that this Munich-based company is theonly major manufacturer in the hydraulics industry to use nothingbut steel for all pressurised components. No aluminium,no cast iron, just top-quality steel.Makino spindle: successfully machining a steel workpiece with a modular drill70 cm in diameterSolutions for a world underpressureHAWE’s exclusive commitment tosteel in pressurised components andclear focus on hydraulics bring application-orientedbenefits. First, HAWEcomponents can withstand very highpressures of up to 700 bar. Second,steel makes compact designs possibleand minimises installation sizes.Third, leak-free really means what itsays at HAWE thanks to the com -pany’s technological leadership inhigh-pressure hydraulics. Last butnot least, HAWE’s portfolio is basedon a modular concept that allows in -dividual products to be combined tocreate customised solutions and systems– in line with the corporateslogan “Solutions for a world underpressure”. HAWE products – pumpsand power units, directional valves,check valves, metering valves, cylinders,accessories and electronics –are now deployed in more than 70 differentindustries, including machinetools, forklift trucks, mobile cranes,construction machinery, forestry,material handling, shipbuilding, plantconstruction, wind energy and offshoretechnology. This steely commitmentto clear technological ideas anda consistent concentration on the corecompetency in hydraulics have beencrowned with success, e.g. salesgrowth from €110 m in 2002 to€238 m in 2007.This rapid growth has increased thepressure on HAWE’s production facilities.The reliability of HAWE’s horizontalmachining centres (HMC), forexample, had to be raised since thehigh productivity levels achieved inother production lines were not beingmatched in horizontal machining.Before investing in new HMC, HAWE12
PRECISELY FEBRUARY 2009laid down the requirements: threesidedmachining of cubic workpiecesper fixture; complete machining ofworkpieces on a single machine;short setup time; fast tool changes;great precision; high availability; andshort delivery time.Convincing spindle powerMakino was first contacted in 2006.After carefully comparing the performanceand specifications of Makinohorizontal machining centres at customerinstallations, HAWE decidedto invest in Makino a51s and a61s.The features that convinced HAWEwere the space-saving 219-tool ma -trix magazine, spacious working areafor flexible chucking systems, compactfootprint, very rigid machine construction,high acceleration (0-14,000rpm in 1.4 sec) and fast tool changetime, which “brings up to 12% timesavings with eight tools” (as HAWEnow knows). The machining centreswere equipped with a 14,000-rpm,201-Nm HSK-A63 or SK-40 spindle.The spindle’s high torque, compactdesign and load monitoring functionwere decisive arguments in favour ofthe Makino machine. HAWE tested thespindle by machining a steel workpiecewith a modular drill (Ø70 mm).The HAWE staff were rather surprised(and pleased) to see the drill cutthrough the steel like a knife throughbutter. HAWE chose the Makinomachining centres although they wereinitially sceptical about the Fanuc custommacro programming software.Working on a Makino horizontal machining centre at HAWE's Dorfen plantThe machine operators had previ -ously been used to Siemens softwareand thought the Fanuc software wasmore difficult to use than Siemens. Butas Christian Haupt, the productionplanning manager at HAWE’s Dorfenplant reports, “we are now very satisfiedwith the Fanuc software. It isreliable and offers more variables”.Eleven Makino a51s and a61s are nowoperating at all five HAWE productionplants in Germany. The a51’sX-, Y- and Z-axis travels of 560 mm x560 mm x 600 mm allow for workpiecesizes up to 630 mm x 900 mm (Ø x H)and 400 kg; the comparable figuresfor the a61 are 730 mm x 650 mm x730 mm, 800 mm x 1000 mm and 500or 700 kg. Two of the a61s operate intandem at HAWE’s Dorfen plant in theproduction of hydraulic units for forklifttrucks. The first and third machiningoperation is carried out on the onemachine, the second on the other –an efficient solution in a plant thatworks a four-shift system from Mondaysto Saturdays to cope with thedemand for these hydraulic units. TheMakino machines installed at the fiveHAWE plants have performed so welland run so reliably that a further sixa51s and a61s were ordered in 2008.Five were delivered before the end ofthe year, the sixth in January 2009.HAWE Hydraulik companybackgroundHAWE Hydraulik is a leading manufacturerof technologically advanced,high-quality hydraulic componentsand systems. Over 1,800 employeescontribute to the company's successat the headquarters in Munich, at fiveother plants in Germany, and inan international sales network withthirteen subsidiaries in Europe,America and the Asia-Pacific region.www.hawe.eu13
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Precisely! - Makino Europe

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