are multi-spindle CNC transfer machines fed by non-rotating bars, ideally
suited for the machining of turned parts on both directions and/or transversally
in one single chucking; without costly secondary operations. Although these
machines are quickly re-tooled like a two-spindle CNC lathe, they offer
higher productivity than a multi-spindle screw machine, and even allow the
complete processing of those parts that cannot be finished on lathes by
re-chucking; either to complete second end, or transversal machining operations.
is a family of horizontal axis transfer machines designed and built
specifically for high efficiency, productivity, precision and complete
processing of turned parts from bar. The wide range of quick-change
accessories that can be installed allows production batches of a few
thousand parts, with tool change over times of 30-60 minutes on average.
For 30 years BUFFOLI has been the world leader
in producing CNC bar transfer machines. Hundreds of machines of this
type are installed all over the world.
basic elements have been custom engineered specifically for
the production of precision parts from round or profiled bar.
Parts may be turned and finished on the front, on the back side
and transversally (with rotating tools simultaneously machining
in two, three or more directions).The TRANS-BAR machines are
produced in 4 bar size ranges,
and in standard or special
versions (up to 16 machining stations). The versions marked
with the symbol“+” can be equipped
with multi-axis multi-tool CNC machining heads.
The machines with bar size 32 or 45 mm are also produced in double production versions
and can reach 4 times the productivity of a multi-spindle lathe (up
to over 10,000 nuts/hour). They minimize labor and part manufacturing
All TRANS-BAR machines are extremely flexible, allowing
tool change over times in a range of from 15 minutes to only 2 hours
maximum (some customers of ours also change over the machine 3 times
per day, processing batches of 1,000-5,000 parts).