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High Speed Machines are often perceived as luxury
items, something costly & beyond a common job shop's
justification. VIBRA-FREE JS is introduced to break this
stereotype and bring
the benefits
of High Speed Machining
to American job shops without the typical price
tag. To reflect this vision, we
name this
latest model
JS,
JS
stands
for Job
Shop.
Spindle
From numerous field installation trips, our VIBRA-FREE
team realized one way to keep the overall
HSM cost of ownership
down is to have a more versatile spindle. VIBRA-FREE
JS is equipped with
our time tested 24,000 rpm Swiss made integral motor
spindle. It comes with
ceramic bearing, intelligent
cooling and oil/mist lubrication, keeps thermal growth
in check from one shift to the next.
HSK 63 pre-balanced, double-face-contact tooling accepts
extended
tool holders
with the rigidity to machine
deep cavities. Roughing is no longer a problem with its
40 continuous horsepower spindle offering full torque at
200 RPM.
Bridge
Structure
It
is an well known fact that no serious high speed
milling
can be accomplished on a conventional C-frame vertical
machine. VIBRA-FREE
JS features our time tested bridge structure
which minimizes overhang and allows optimal weight
distribution between base, table and moving ram.
Most weight is allotted to the stationary fixed bridge
frame, keeping the moving structures light, stubby
and
rigid.
Integral Motor
Spindle
Made
to perform on both high speed and low speed end, its
16,000 rpm spindle comes with its own cooling circulation
system that
maintains
thermal stability through entire RPM span.
Automatic
Hi/Lo speed change make it extra versatile. Practical NBT40
tooling
allows
one
to
use existing BT40 tooling,
yet also offers secondary nose contact for
NBT pre-balanced DFC (double-face-contact) tooling.
FANUC
18i Powered by UHSHM Software
UHSHM
software guarantees smooth
motion. Before a VIBRA-FREE JS goes out the door, parameters
are set for a variety of conditions so one can "change
gears" when dealing with different
challenges. The
world-class Fanuc 18i-MB CNC, advanced AI Nano High Precision
contour control (AI Nano HPCC), 1 Gb data server, Ethernet,
and rigid tapping are
all standard.
Ball Screws
and Roller Guides
All ball screws are double end
fixed & pretensioned for rigidity.
X,Y and Z guides use roller bearings, known for their
high rigidity and
excellent
damping. See chart below for the comparison between ball
bearing guide and roller bearing guide. Roller guide provides
the rigidity comparable to that of box square way, yet do
not have
the typical "stick slip" problem associated with
sliding
motion.
VIBRA-FREE JS Specifications
VIBRA-FREE
JS Brochure
(PDF 1.3mb)
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