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.