This is a demo tutorial. While there is no step-by-step commentary available (yet), the live demo below is fully functional. Feel free to open it for full source code.
Normally, an axis on a GaugeChart will place labels at convenient intervals - so they are not too crammed and not too sparse. It will depend on actual chart size. However, in some case you might want to place labels at exact values, no matter what. This demo will show how you can disable axis labels altogether and place axis range labels at precisely the values you need them to appear at.
See the Pen amCharts 4: Using axis ranges to place axis labels at arbitrary values on GaugeChart by amCharts team (@amcharts) on CodePen.24419