NSK ASTRO-E 400Z User Manual

22
20    
（1）Thepropersurfacespeedforvitrifiedgrindstonesis600-1800m/min.
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（2）Do not exceed 13mm overhang for mounted grindstones.  In case overhang must exceed 13㎜
reducethemotorspeedinaccordancewithFig.34andTable5.
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（3）Donotusetoolswithbentorbrokenshanks,cracksorexcessiverunout.
（4）Dressthegrindstonepriortouse.
（5）Forgrindingthemaximumdepthofcutshouldnotexceed0.01㎜radiallyoraxially.Reciprocatethe
toolseveraltimesaftereachinfeedstep.
（6）Always operate tools within the tool manufacturer
,
s recommended speed limits.  Use of a tool
outsideofthemanufacturer
,
srecommendedspeedlimitscouldcausedamagetothespindleand
injurytotheoperator.
（7）Keepthetoolshankandcolletclean.Ifcontaminantsareleftinthecollet,theycancauseexcessive
runoutanddamagethetoolandspindle.
（8）Donotdroporhitspindle.
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Overhang（㎜） 
20
25
50
Max.OperatingSpeed（min
− １
） 
Ｎ×0.5
Ｎ×0.3
Ｎ×0.1
Table5.OverhangandSpeed
※N=Max.operatingspeedat13㎜overhang.

         
！
 !"
1000
SurfaceSpeed（m/min）＝
3.14×Diamete（㎜）×rotationspeed（min
− 1
）


NSK ASTRO-E 400Z Specifications

General

Brand	NSK
Model	ASTRO-E 400Z
Category	Control Unit
Language	English