Balancing Tools
Profi Tool Balancer PTB 31.2

Profi Tool Balancer PTB 31.2 is solution from Hofmann for balancing of tools or tool holders with standard conical spindle interfaces (SK, HSK, Capto etc.). The tools are precision-clamped in the spindle of the vertical hard-bearing (force measuring) balancing machines using suitable adapters. The available unbalance measuring system convert the measured unbalance into all common practical units for unbalance compensation in one or two planes. In addition the unbalance measuring system MC 10 of the PTB 31.2 supports calculation of the permissible residual unbalance according to DIN 69888.

Balancing tools with Profi Tool Balancer PTB
  • Features
    • - Precision spindle for highest accuracy of measurement and repeatability
    • - Standard high-precision chucks for conical spindle interfaces (SK, HSK, Capto etc.)
    • - Hard-bearing (force measuring) balancing machine with permanent calibration
    • - Measuring system supports all common methods of unbalance measuring system
    • -Line laser module for precise marking of the correction angle position
    • - Calculation of residual unbalance according to DIN 69888 (option MC 10 PTB)
  • Applications
    • - Balancing of tools and tool holders
    • - Balancing in tool holder manufacturing
    • - Balancing in tool maintenance shop
    • - Balancing of tools per DIN 69888
    • - Balancing of rotors without their own shaft journal , e.g. grinding wheels, blower wheels etc.

Technical data
PTB 31.2
Weight including holder, max. kg 30
Diameter, max. mm 400
Height, max. mm 500
Width x depth x height mm 1,190 x 920 x 1,740
Balancing speed, approx. min-1 600 - 1.600
Driving power W 170
Repeatability gmm < 0.5