Specification
The STL-series is Horizontal type BTA boring machine designed for deep-hole
boring of rotating workpieces, such as cylinders, spindles, etc..
Powerful main spindle motor ensures heavy duty cutting at high speed and various
boring methods such as solid boring, counter boring and trepanning are available.
In the machining of asymmetric workpieces or eccentric holes, the machine works
with a rotating drill and a non-rotating workpiece, since the workpiece can
not rotate at sufficient speed. When the hole must meet high straightness requirements,
both the drill and the workpiece rotate.
The direction of rotation of the drill is then opposite to that of the workpiece.
With honing attachment, the machining of hollow bar for hydraulic and pneumatic
cylinders is available.