XQ7190A is a graphite fiber taper with U-shaped heated graphite filament as heat source which is designed independently by OSCOM Technology.It mainly used for manufacturing ultra high power optical combiner and it can taper low melting point fiber,quartz fiber,special fiber,glass tube,quartz rod,etc.XQ7190A is equipped with automatic fiber tapering system,the automatic tapering and cone area scan will be accomplished after inputting fiber and tapering diameters which greatly improve the success rate of tapering.