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    All rights reserved © 2012-2015 The Cement Grinding Office  
      BOND POWER FORMULA CALCULATOR          
      (For monochamber mill)          
                    85  
      Date           86  
      Company/Plant         87  
      Mill N°           88  
                    89  
      Mill diameter m         90  
      Lining average thickness  mm         91  
      Internal diameter m         92  
      Useful length m No       93  
      Length/Diameter ratio   Yes       94  
      Speed rpm         95  
      Critical speed rpm         96  
      % of the critical speed %         97  
      Volume load (Filling degree) %         98  
                    99  
      Gross power by ton of ball kW         100  
                       
      Outlet diaphragm?
               
      Maximum ball size mm          
      Ball size factor            
                       
      Gross power by ton of ball corrected kW            
                       
      Bulk density of ball charge t/m3            
      Tons of balls t            
                       
      Absorbed power at shaft kW            
                       
      Transmission efficiency
    %            
      Motor efficiency
    %            
                        
      Absorbed power at terminals kW            
                       
    www.thecementgrindingoffice.com  
      BOND POWER FORMULA CALCULATOR          
      (For 2 chambers mill)          
                       
      Date              
      Company/Plant            
      Mill N°              
                       
      Mill diameter m            
      Speed rpm            
      Critical speed rpm            
      % of the critical speed %            
      Chamber 1:                
      Lining average thickness  mm            
      Internal diameter m            
      Useful length chamber 1 m            
      Volume load (Filling degree) %            
      Gross power by ton of ball kW             
      Maximum ball size mm          
      Ball size factor              
      Gross power by ton of ball corrected kW            
      Bulk density of ball charge t/m3            
      Tons of balls chamber 1 t            
      Absorbed power at shaft kW for chamber 1            
                       
      Chamber 2:                
      Lining average thickness  mm            
      Internal diameter m            
      Useful length chamber 2 m            
      Volume load (Filling degree) %            
      Gross power by ton of ball kW            
      Maximum ball size mm          
      Ball size factor            
      Gross power by ton of ball corrected kW            
      Bulk density of ball charge t/m3            
      Tons of balls chamber 2 t            
      Absorbed power at shaft kW for chamber 2            
      Absorbed power at shaft kW for mill            
      Transmission efficiency
    %            
      Motor efficiency
    %            
      Absorbed power at terminals kW for mill            
    www.thecementgrindingoffice.com  
      BOND POWER FORMULA CALCULATOR          
      (For 3 chambers mill)          
                       
      Date              
      Company/Plant            
      Mill N°              
                       
      Mill diameter m            
      Speed rpm            
      Critical speed rpm            
      % of the critical speed %            
                       
      Chamber 1:                
      Lining average thickness  mm            
      Internal diameter m            
      Useful length chamber 1 m            
      Volume load (Filling degree) %            
      Gross power by ton of ball kW             
      Maximum ball size mm          
      Ball size factor              
      Gross power by ton of ball corrected kW            
      Bulk density of ball charge t/m3            
      Tons of balls chamber 1 t            
      Absorbed power at shaft kW for chamber 1            
                       
      Chamber 2:                
      Lining average thickness  mm            
      Internal diameter m            
      Useful length chamber 2 m            
      Volume load (Filling degree) %            
      Gross power by ton of ball kW            
      Maximum ball size mm          
      Ball size factor            
      Gross power by ton of ball corrected kW            
      Bulk density of ball charge t/m3            
      Tons of balls chamber 2 t            
      Absorbed power at shaft kW for chamber 2            
                       
      Chamber 3:                
      Lining average thickness  mm            
      Internal diameter m            
      Useful length chamber 3 m            
      Volume load (Filling degree) %            
      Gross power by ton of ball kW            
      Maximum ball size mm          
      Ball size factor            
      Gross power by ton of ball corrected kW            
      Bulk density of ball charge t/m3            
      Tons of balls chamber 3 t            
      Absorbed power at shaft kW for chamber 3            
      Absorbed power at shaft kW for mill            
      Transmission efficiency
    %            
      Motor efficiency
    %            
      Absorbed power at terminals kW for mill            
    www.thecementgrindingoffice.com  
    All rights reserved © 2012-2015 The Cement Grinding Office