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6/30/2010 -- NIKKEN END MILL HOLDERS NOW 60% OFF!
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HSBalance™ FeaturesAccuracy of balance comes from balancing the full assembly, not just the toolholder itself. Even though their mass is comparatively less than that of the toolholder, unbalanced cutting tools and retention studs may have a relatively high degree of inherent unbalance. Therefore, unbalance will still be created when the cutting tool, the retention knob and a pre-balanced toolholder are assembled. This could easily exceed the maximum acceptable level of unbalance. As the cutting speed increases this becomes more pronounced. Rebalancing the toolholding assembly is definitely necessary for any high-speed spindle. |
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The toolholder is, in most cases, the dominant unbalance source, and the most accessible component for balancing in any assembly. Therefore, toolholders for high-speed machining need to be pre-balanced to a certain specification, and need to be balanceable to compensate for other unbalanced components. 
Patented Balancing MethodLyndex-Nikken's HSBalance™ toolholders employ a series of tapped holes surrounding the holder's centerline. Small set screws and weights are used to achieve balance. The holes are drilled parallel (not perpendicular) to the holder's centerline so the inserted set screws are not depth sensitive. A deeper setting will not affect the weight distribution. Parallel holes offer an additional advantage: setscrews cannot become unscrewed and back out during high-speed operations, so they need not be affixed semi-permanently. HSBalance™ toolholders are easily re-balanced by adding, removing, or relocating the balancing weights, to bring any assembly into the finest level of acceptable unbalance. |
