The top gauge should have all chrome disabled (chrome=dash, tick marks, title bar, regions, etc.) and should have exactly the same Max/Min settings as the bottom one. Then align the needles. For example, this one is contructed from two gauges placed on top of each other:
See Qlik OEE Analysis demo @ eu-a.demo.qlik.com/QvAJAXZfc/opendoc.htm?document=qvdocs%2FOEE.qvw&host=demo11 (sorry, link edited to avoid moderation. Copy in your browsers address bar.)
Please find attached examples.
In one of gauges I made transparent almost everything.
Check properties carefully. There are loads of options to play around
Hope this helps.