KWS Manufacturing

Screw Conveyor Interactive Calculators

HORIZONTAL SCREW CONVEYOR CAPACITY & SPEED CALCULATION:

Visit the online engineering guide for assistance with using this calculator.

View a descriptions of the conveyor flight types.Click on symbol for more information.

DESIGN CONDITIONS 
1. Flowrate(m):    lb/hr
2. Density: View the materials table to select a density value.   
3. Loading (K):    %
SPCL. FLIGHT TYPE – Place an “x” in the appropriate box. (If using standard flighting, leave all selections blank)
4. Cut Flight: View a descriptions of the conveyor flight types.
5. Cut & Folded Flt.: View a descriptions of the conveyor flight types.
6. Ribbon Type: View a descriptions of the conveyor flight types.
7. Paddles per Pitch: View a descriptions of the conveyor flight types. (0 – 4)    
         
FLIGHT PARAMETERS  
8. Flight OD(D): View a descriptions of the conveyor flight types.   in. 
9. Flight ID(d):   in. 
10. Pitch(P) :   in. 
      
CALCULATIONS : 
  Shaftless Mass Flow Factor, C1  = 
  Spcl. Flight Type Factor, CF2  =   
      
Flowrate (v)  = m  =  
      Density      
               
               
Capacity per revolution =  0.7854 ( D² – d² ) P K 60 I C1 =  
      1728 CF2    
               
               
Required Speed, N  =  =  rpm
     

Everything below is hidden on purpose

Calc.:         R =
 
       Selection:    
Cut Flight Capacity Factor, CF2 =  
Cut & Folded Flight Capacity Factor, CF2 =  
Ribbon Capacity Factor, CF2 =  
Mixing Paddle Capacity Factor, CF2 =  
           
  Paddle FactorCF2: 
  CF2 calc        
          
          
          
          
          
(PER CEMA ) 
 

Horsepower

Visit the online engineering guide for assistance with using this calculator.

View a descriptions of the conveyor flight types.Click on symbol for more information.

CONVEYOR   SPECIAL FEATURES  
11. Conveyor Length(L):  Ft  8. Paddles per Pitch : (0 – 4)
2. Conveyor Diameter (D):  in. 9. Flight Type : Standard
3. Conveyor Speed(N) :  rpm Cut Flight
4. Trough Loading (K) :  %   Cut & Folded
       Ribbon
6. Drive Efficiency(e) :  % 
7. Hanger Bearing Type :Place an ‘x’ in the appropriate box    
   Ball, Roller or None Hard Iron, Stellite
   Arguto, Babbit, Bronze, Wood Plastech, Nylon, Teflon,
         UHMW
MATERIAL
12. Material Factor (Fm): View the materials table in our engineering guide.
13a. Conv. Capacity (Cw):  Lb/Hr
   -or-    
13b. Conv. Capacity (Cv): 
14. Density(W):    
           
CALCULATIONS :
  Diameter Factor(Fd)  =     
  Bearing Factor(Fb)  =   
  Paddle Factor(Fp)    =     
  Spcl. Flight Factor(Ff)  =  
           
HPf = L N Fd Fb  =   Fo =  
   1000000            
               
HPm = Cw L Ff Fm Fp           
   1000000            
    -or- Minimum Required Horsepower =   HPt =(HPf + HPm) Fo = HP
= Cv W L Ff Fm Fp    e   
   1000000            
  exact : 2.03303699192
  -1.44625162034
  
   
   
     
       
avg % diff.      
      
       
       

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