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Kronos dual |
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Kronos dual - Between centres and centreless
The Mikrosa Kronos dual gives the combination of two grinding
processes in one clamping: "Grinding between centres“ and
"Centreless grinding“
Thanks to the combination of centreless grinding and grinding
between centres, the Kronos dual provides a number of processing
benefits. The technological highlight is the retention of the
workpiece centre in centreless grinding. Since the workpiece
centre is not lost, nothing is left to chance anymore. Its field
of application is to be seen whenever previous or successive work
steps require processing from the centres.
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The Kronos dual guarantees
shorter processing times through higher stock removal performance
with the combination of grinding between centres and centreless
grinding. By means of the innovative expansion to grinding between
centres, a first-rate economical solution has been found, based on
the machine concept of the tried and true
Kronos L 660, with all of its benefits and features. A
tailstock on the control side and a workpiece spindle stock with
synchronisation drive behind the workpiece support bracket are
provided for accepting between centres work.
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First-rate economical solution
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Combination of centreless
grinding and grinding between centres
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The workpiece centre is not
lost
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Shorter processing times
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Grinding Area |
Metric |
Imperial |
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Min. workpiece diameter: |
15 mm |
0.590" |
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Max. workpiece diameter: |
100 mm |
3.937" |
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Max. workpiece length: |
300 mm - 630 mm |
11.8" - 24.8" |
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Grinding Wheel |
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Max. diameter: |
660 mm |
26" |
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Max. width: |
660 mm |
26" |
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Bore dia.: |
304.8 mm |
12" |
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Regulating Wheel |
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Max. diameter: |
400 mm |
15.75" |
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Max. width: |
660 mm |
26" |
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Bore dia.: |
203.2 mm |
8" |
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Grinding Wheel Drive |
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Circumferential speed constant: |
yes |
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Circumferential speed m/sec: |
63 |
m/sec |
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CBN grinding circumferential
speed†: |
90 / 120 |
m/sec † |
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Drive output: |
60 kW / 100 kW |
80 hp / 134 hp |
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Regulating Wheel Drive |
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Speed range, infinite: |
5 - 300 |
rpm |
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Dressing speed: |
700 |
rpm |
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Drive output: |
12 kW |
16 hp |
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Dimensions |
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Set-up area required,
(foundation): |
3210 mm x 1460 mm |
10.5' x 4.8' |
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Total area (including switch
cabinet): |
6850 mm x 3300 mm |
22.5' x 10.8' |
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Maximum height: |
2320 mm |
7.6' |
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Machine weight: |
19,000 |
kg |
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† = option |
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Grinding between centres |
Cantering points release the workpiece |
Centreless grinding |
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 Characteristics:
- Considerably shorter machining times with higher
accuracies compared with
grinding between centres because the workpieces do not bow.
- Grinding and regulating wheel widths up to 660 mm
- New drive technology for the grinding wheel and
regulating wheel spindle, in
particular for application of high speed
technology with CBN grinding wheels
(circumferential speed up to 120 m/s)
- Max. 100 kW drive output enables high removal rates
- Extreme system rigidity, high thermal stability
- Full enclosure of the working area for a safe and
environmentally friendly operation
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Click Here to view or download the
Kronos machine range brochure
(in PDF format) |
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