Tool Holder Balancers

Typical tool holders today are standard sizes CAT-30, 35, 40, 50, as well as HSK. Historically, tool holder balancers have had difficulty achieving ISO balance grade G-2.5, and as machining center spindle speeds have continued to increase the task has become even harder. Customers are now requesting the ability of balancing to ISO G-1.0. Tighter balance grades equate to faster speeds and feeds, and therefore less machining time. BTI manufactures balancing equipment capable of balancing tool holders to this lower level.

In the past tool holders were balanced by placing them into a mating conical adapter or directly in the shaft of the spindle, with or without a drawbar mechanism. There are numerous disadvantages to this method including the cost of a precision spindle, limits to the accuracy of centering the tool holder because of conical surface misalignment, and the added weight of the suspended balance spindle.

The BTI tool holder balancer eliminates the typical problems associated with balancers employing a spindle. Our design allows the tool holder to rest in a nest of roller assemblies contacting the holder at the upper and lower end of the conical surface. This breakthrough eliminates the problems caused by eccentricity that exists between the tool holder and typical tooling. Likewise, there is no spindle unbalance to compensate for. In addition to a superior measuring system, BTI offers the most advanced user friendly computer controls available in today’s market. By utilizing an industrial NEMA rated PC our displays offer superior reliability, speed, and graphics. Our user friendly displays can be customized to show only the information you need. Because our computers speak the same language as yours, guesswork is removed from your project.

Overall, the BTI tool holder balancer is among the most accurate and repeatable balancers available today, for any application.