Machine presentation MIKROSA KRONOS S 125
Precision for small workpieces KRONOS S 125
KRONOS S 125 at a glance Overview Working range 0.5-30 mm, plunge cut length up to 120 mm GRANITAN machine bed with benefits such as thermal stability and vibration-reduction Cross-slide system for grinding and regulating wheel Grinding spindle with hybrid roller bearings, max. 120 m/s Reproducible grinding results even for tolerances of ±0.5 µm Designed for multiple production Full enclosure fulfills highest safety and environmental standards
KRONOS S 125 at a glance Available grinding technologies Plunge cut grinding - straight or 15 inclined Plunge cut grinding in single or multiple production Plunge cut grinding of multiple operations simultaneously or consecutively by offsetting the workpiece or the grinding wheel Oscillating plunge cut grinding Throughfeed grinding
KRONOS S 125 at a glance Typical applications Injector needles Valve needles Valves Pump pistons Pistons with tapers Relay valves Rotor shafts Compressor crankshafts Rolling elements Bolts
KRONOS S 125 in detail Regulating wheel Regulating wheel: 250 x 125 x 127 mm Regulating wheel supported by roller bearings on both ends Spindle power 5 kw Maintenance-free life-time lubrication Short dressing time via regulating spindle speed of up to 1,000 min -1 Adjustment of regulation wheel angle by +5 /-5 Change device with integrated upper bearing housing Height adjustment of regulating wheel up to 20 mm (optional)
KRONOS S 125 in detail Grinding wheel Grinding wheel: 400 x 125 x 203.2 mm Grinding spindle with maintenancefree hybrid roller bearings, max. 120 m/s Spindle power 11 kw / 15 kw Automatic balancing unit Quick conversion into a 15 angled plunge cut machine - Improved flexibility of application range - Grinding of diameter and faces in one operation
KRONOS S 125 in detail Silde system Cross-slide-system: 2 X-axes, 2 Z-axes Digital servodrives, use of high precision ball screws Slides on pre-clamped linear bearings Infeed increments of 0.1 µm for X1- and X4-axis (0.01 µm option) Linear scales for X1- and X4-axis as standard Z2 Z3 X4 X1
KRONOS S 125 in detail Control system features SINUMERIK 840D (840D sl) and Simodrive drive technology Absolute drive concept Safety concept Safety Integrated Workpiece-orientated programming (WOP) for centerless grinding Standard cycles for - Plunge cut grinding - Throughfeed grinding - Dressing of grinding and regulating wheel Functions such as production parts counter, profile correction screen, feed calculations and compensation of dresser wear, error diagnosis incl. Windows help functions
KRONOS S 125 in detail Automation Standardized integrated automation Shuttle max. 2.0 m/s Interface to external automation Integrated gantry 2 CNC axes Tailored gripper systems Single or multiple grippers Workpiece changeover time: 3 sec
KRONOS S 125 in detail Dressing system High dressing accuracy due to dressing on the workpiece centre height Flexible dressing system: change from a rotary dresser to dressing blade or single point diamond Rotating dressing tools - Diamond contour roll - Diamond profile discs High-precision dressing with Acoustic Gap Control (optional)
KRONOS S 125 Technical data 3400 Description Grind ing range Grinding diameter, minimum mm 0.5 Grinding diameter, maximum mm 30 Plunge cut lenght, maximum mm 120 Grinding wheel Diamet er, maximum mm 400 Width, maximum mm 125 Bore mm 203.2 Regulating wheel Diamet er, maximum mm 250 Width, maximum mm 125 Bore mm 127 Grinding wheel drive Surface speed standard m/ s 63 Surface speed CBN, maximum m/s 120 Constant power rating kw 11/ 15 Regulating wheel drive Working speed range, inf init ely variable min -1 5...500 Dressing speed min -1 1,0 0 0 Constant power rating kw 5 D imensions of machine Foot Print of machine mm 5,363 x 3,400 Height mm 2,100 Weight kg approx. 6,700 5636 1800 3218
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