Technical Information

TECHNICAL CALCULATIONS

FRONT MOUNT DUMP BODY CYLINDER FORCE AND STROKE CALCULATIONS

Two Easy Steps for Front Mount Dump Body Cylinder Force and Stroke Calculations

Unit of measure = inches
A = Center of load to dump body
hinge (in inches)

B = Length in inches, cylinder base 
pin to body hinge pin

C = Stroke		D = Dump angle

E = Center of load

F = Hinge
  1. Determine cylinder force needed.

    This is the initial force needed to lift a load.

    Approx. initial      =        Load (LBS.) x “A”     
    cylinder force                            “B”

    Example:

    45,000# x 80″     =     22,500# of force
           160″                       to start the lift.

    NOTE:     For a good design, the pressure on the first ram at the start of the lift should not exceed 800 P.S.I.

  2. Determine cylinder stroke needed.

    The tables and formula below will give you the required cylinder stroke for a dump angle. 

    Approx. Stroke = “B” x “D”

    Example: 160″ (B) x .845 (D) = 135″ stroke

Dump Angle

“D”

42°

.715

43°

.733

44°

.750

45°

.765

46°

.780

47°

.797

48°

.813

49°

.830

Dump Angle

“D”

50°

.845

51°

.861

52°

.877

53°

.892

54°

.903

55°

.923

56°

.939

57°

.954

Normal minimum dump angle is 45°. Normal maximum dump angle is 57°