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.

During our numerous field trips, one recurring observation we have with High Speed Machining is that HSM defines its applications strictly. Certain applications fit the machine precisely and amazing results are produced (see our photo gallery), on the other hand, a common everyday part, which often needs low end torque more than high end RPM, may be unfit for high speed machines.

This might be no issue for a big or specialty shop that has enough high speed work and machines for it, but for many job shops or small mold shops, dedicating machines is simply not justifiable. For them, the ability of High Speed Machining can not come at the price of losing low end functions to make chips before and after their high speed work is done.

With this observation in mind, our VIBRA-FREE team realized, in order to keep the overall HSM cost of ownership down, the JS not only needs to carry a lower price tag, it also need to be more versatile. In a perfect world, one might want a 50,000RPM spindle which also delivers 300 lb.ft torque for ultimate versatility, but that is cost prohibit in reality. VIBRA-FREE JS comes with a 16,000RPM motor spindle, features automatic Hi/Lo Speed change, and delivers excellent balance between speed and power.

In the test cut video below, the motor spindle easily produces a 32µin surface finish with a 1/8" ball end mill at top RPM (a typical high speed hard milling application), yet is completely comfortable of roughing with a 3" shell mill at low speed (a common everyday job).

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)