04/19/202302:55:04

LOEFFLER ENGINEERING GROUP20511 Highland Lake Drive, Lago Vista, Texas 78645

512-267-8700

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ESTIMATOR/ENGINEER Frank LoefflerDATECLIENTPROJECTPROJECT NUMBERFEEDER NUMBERLOAD CASE FullDISC FILE NAME h:/REVISION 0 FEEDER PROFILE

VOLUMETRIC DATABELT WIDTH INCHES BELT SPEED FT/MIN MAT'L DEPTH

CAPACITY (TPH)MATERIAL 24 0.500 0 12 6MATERIAL DENSITY (PCF) 50 30 1.125 0 18 9ANGLE REPOSE (DEG) 37 36 2.000 0 24 12ANGLE SURCHARGE (DEG) 27 42 3.125 0 30 15MAXIMUM LUMP SIZE 48 6.000 0 36 24MOISTURE CONTENT (%) 54 6.125 0 42 21TROUGH ANGLE (DEG) 20 60 8.000 0 48 24BELT WIDTH (INCHES) 66 10.125 0 54 27BELT SPEED (FPM) 72 12.500 0 60 30SHEAR FACTOR 0.75 84 18.000 0 72 36

96 24.500 0 84 42108 32.000 0 96 48

NOTE: 1. Shaded areas are required input data. The above table shows the required belt speed based on capacity, density & 2. Values shown in shaded areas are the most common input. These values should be overidden if actual requirements differ. Select the belt width and speed. 3. Values shown in non-shaded areas are Typical belt speeds range from 50 to 150 fpm. program calculated, or standard values but they may also be overidden. The maximum lump size should be 1/5 skirtboard spacing or 1/3 the material depth.

The above table is based on using picking and feeder idlers.

CROSS SECTION AREA FT 2

SKBD SPCG INCHES

cross sectional area. The values shown are NOT recommended belt speeds.

LOEFFLER ENGINEERING GROUPBELT FEEDER DESIGN SOFTWARE

VERSION 1.0

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ESTIMATOR/ENGINEER Frank Loeffler TYPICAL VALVES OF CsDATE 0 BAUXITE = .19 GRAVEL =.12CLIENT 0 CEMENT = .21 IRON ORE = .28PROJECT 0 COAL = .08 LIMESTONE = .13PROJECT NUMBER 0 COKE = .05 WOOD CHIPS = .01FEEDER NUMBER 0 GRAIN = .04

PHYSICAL DATA GEOMETRY DATAHORIZONTAL FEEDER LENGTH (FEET) TAILFEEDER NET LIFT (FEET) TAKE UP LOCATION XFEEDER LENGTH ALONG BELT (FEET) 0.0DESIGN TEMPERATURE (DEG -F) 32 SCREW GRAVITYBELT SAG (%) 2 TAKE UP TYPE XFEEDER SLOPE (DEGREES) #DIV/0! DRIVE WRAP ANGLE 180 180

DRIVE WRAP FACTOR CW 0.8 0.5ACCESSORIESSKIRTBOARD LENGTH (ONE SIDE) FT. 0.0DEPTH OF MAT'L ON SKIRTBOARD (INCH) #N/ANUMBER OF BELT CLEANERS 2NUMBER OF V-PLOWS 1NUMBER OF PULLEYS 2 MISCELLANEOUS FRICTIONSDRIVE LOSS MULTIPLIER 1.08 BELT CLEANER FRICTION (#/IN) 5INCOMING MAT'L VELOCITY (FPM) 0 PLOW CLEANER FRICTION (#/IN) 2MAT'L ON SKIRTS FACTOR Cs 0.13

SHEAR PLANE#N/A NOTES:

#N/A 1. Input Actual slot Dimensions.LOAD ON SHEAR PLANE (LBS) #N/A 2. For tapered slots use the maximum width.SHEAR FORCE (LBS) #N/A 3. Additional Ky & Kx for headload weight on shesr plane

#N/A Kx only considers bearing (.00068) not idler seal.

Kt only applied to Kx term.

LENGTH OF OPENING (FEET) NOTE: 1WIDTH OF OPENING (FEET) NOTES:1& 2

HEADLOAD FRICTION (LBS) NOTE: 3

LOEFFLER ENGINEERING GROUPBELT FEEDER DESIGN SOFTWARE

VERSION 1.0

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ESTIMATOR/ENGINEER Frank Loeffler

DATE 0CLIENT 0PROJECT 0PROJECT NUMBER 0FEEDER NUMBER 0

IDLER DATAWEIGHT OF MATERIAL (#/FT) #DIV/0!WEIGHT OF BELT (#/FT) #N/AWT .MAT'L + WT. BELT (#/FT) #DIV/0!IDLER ROLL DIAMETER (IN) 6CEMA IDLER SERIES C TROUGHING IDLER SPEG (FT) 1 STANDARD LOAD RATINGS (35 Degree Trough) RETURN IDLER SPEG (FT) 10 BELT CEMA CEMA CEMA CEMA

IDLER AI FACTOR 1.5 WIDTH B C D EIDLER LOAD # #DIV/0! 18 410 900

24 410 900 120030 410 900 1200

APPROXIMATE BELT WEIGHT 36 410 837 1200 1800

BELT DENSITY 42 363 791 1200 1800WIDTH 30 - 74 75 - 130 130-200 48 353 744 1200 1800

18 5.3 6 6.7 54 698 1116 180024 6.8 8.3 9 60 650 1070 180030 9 10.5 12 72 977 180036 13.5 15 18 42 16.5 18 21 IDLER Ai FACTORS * For V-Returns increase Ai by 5%48 21 22.5 25 CEMA ROLL Ai * For belt speed >1000 fpm consult factory

54 24 25.5 28.5 SERIES DIA. 60 27 30 31 B&C 4 2.372 30 36 39 B,C,&D 5 1.884 37 45 49.5 C&D 6 1.596 45 52 57 E 6 2.8

E 7 2.4

LOEFFLER ENGINEERING GROUPBELT FEEDER DESIGN SOFTWARE

VERSION 1.0

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ESTIMATOR/ENGINEER Frank Loeffler DATE 0

CLIENT 0

PROJECT 0

PROJECT NUMBER 0

FEEDER NUMBER 0

CONDITIONFRICTION FACTORS

IDLER KX #DIV/0! #N/A #DIV/0! #DIV/0! #DIV/0!

FLEXURE KY 0.035 0.035 0.023 0.035 0.035

TEMPERATURE KT 1.0 1.0 1.00 1.0 1.0

BREAKAWAY MULTIPLIER 2 2

DRIVE WRAP FACTOR CW 0.80 0.80 0.80 2.00 0.80

DRIVE LOSS MULTIPLIER 1.08 1.08 1.00 1.08 1.08

HORSEPOWER & FRICTION TE TE HP TE HP TE HP TE HP TE HP

TROUGH FRICTION Kx #DIV/0! #DIV/0! #N/A #N/A #DIV/0! #DIV/0! #DIV/0! #DIV/0! #N/A #N/A

TROUGH FRICTION Ky #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A

RETURN FRICTION #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A

LIFT LOAD #DIV/0! #DIV/0! 0 0.0 #DIV/0! #DIV/0! #DIV/0! #DIV/0! 0 0.0

LOAD ACCELERATE 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0

BELT CLEANER 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0

V-PLOW 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0

MAT'L ON SKIRTS + RUBBER #N/A #N/A 0 0.0 0 0.0 #N/A #N/A 0 0.0

PULLEY FRICTION 350 0.0 350 0.0 233 0.0 700 0.0 700 0.0

MATERIAL SHEAR #N/A #N/A 0 0.0 #N/A #N/A #N/A #N/A 0 0.0

TOTAL TE & HP #DIV/0! #DIV/0! #N/A #N/A #DIV/0! #DIV/0! #DIV/0! #DIV/0! #N/A #N/A

T2 SAGTENSIONS REQ T2T1 #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0!

T2 #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0!

TAIL TENSION #DIV/0! #DIV/0!

TAKE-UP TENSION #DIV/0! #DIV/0!

SAG TENSION #DIV/0! #N/A #DIV/0! #DIV/0! #N/A

TRACTION TENSION #DIV/0! #N/A #DIV/0! ACTUALPIW #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0!

ACTUAL

NORMAL FRICTION FULL LOAD

NORMAL FRICTION EMPTY

REDUCED FRICTION FULL LOAD

BREAKAWAY FULL LOAD

BREAKAWAY EMPTY