b'enough to stick to the tool. dont need a torque arm. We dontITS NEVER TOO High speeds are key but chal- need the spindle on. We just needLATE TOlenging to achieve. A machine run- the coolant on to run through our ning at or near its maximum rpmball piston motor, creating veryREDUCE YOUR can have balance and runout is- high rpm with very little reciprocat- PART COSTS!sues,generatefriction-causeding weight for very smooth, vibra-thermal expansion that burns outtion-free machining.bearings and gears and potentiallyHaving good concentricity is im- Get started!distort tools during operation. portant when running at high spin-Spindle speeder suppliers, how- dle speeds, Johnson said.ever, have developed methods toAnytime you add another ele-overcome many of these problems.ment between the cutting tool and For example, when Bryan made histhe machine spindle, theres the spindle speeder turbine system,possibility to have a greater amount one of his must-haves was a shortof runout, he said. The spindle distance between a spindle andspeeders that we produce have workpiece. a high accuracy between the ma-The further you get away fromchine spindle taper and the output the machine spindle, he said, thespindle of the speeder. The maxi-more vibration you get. mum runout allowance is just 1 m, Eltools speeders are poweredor 0.000039". Often the resulting by high-pressure coolant as op- runout is significantly less.posed to running a machine toolSpeeder Types - 38%with a spinning spindle that has ad-ditional components installed, suchSpindlespeedersandhigh-as a torque arm. speed attachments come in various In our case, Young said, wetypes and styles, as well as power vma-werbeagentur.deVRT spindle speeders have a built-in regulator that adjusts pressure to provide the right amount of power.PRODUCTIVITYSTARTBROACHINGWITH SCHWANOGDOWNLOAD APP NOW:SCHWANOG PRODUCTIVITYNow on Available on the PRECISE, QUICK = EFFICIENT!www.schwanog.comSchwanog LLC Elgin | Illinois [email protected] Machine Servicectemag.com/cteguide.com47Micromachining.indd 47 4/16/20 6:03 PM'