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Calculate a bucket elevator's head pulley RPM by entering your information into the online calculator below. Pulley Diameters & Belt Speeds This table is provided as a general reference only and does not mean all products will properly discharge over the entire speed range. Elevator calculations Capacity in kg per hour (Q) Q = a x V x sg x v x 3600 sec. Q = capacity in kg per hour a = buckets per meter V = bucket volume in liters sg = specifi c weight of the material (see table) v = belt speed in m per sec (see above equation) Elevator calculations Power in Kw (P) Q x H x 9,81 COMPUTING BUCKET ELEVATOR CAPACITY Note: Traditional formulas for computing elevator capacity are based on the bucket manufacturer’s published gross bucket capacity. Tapco recommends using water FEET PER MINUTE FORMULA: Belt or chain speed can be determined if the head pulley or sprocket diameter and R.P.M. of the head shaft is known. The following calculation factors are important for project planning of bucket elevator gear units: Service factor F S The service factor F S = 1.5...1.8 takes into account the load impacts generated by the The above formulas will help calculate bucket elevator capacity. However, should assistance be needed to help fill in some blanks T.O.P.S. Inc. has provided a couple formulas for the most common questions. Bucket Capacity x Spacing x Number of x FPM x Minutes ÷ cu.in./bu. = bu./hr. x +10% = bu./hr.Capacity of my bucket elevator in CubicFeet The above formula will result in the theoretical horsepower necessary. It is recommended that an additional 25% minimum be added for drive losses and up to 15% for elevator friction and cup digging through the boot. CAPACITY of the bucket at water level (Cubic Inches) NUMBER OF BUCKETS per foot (12 ÷ spacing in Inches) NUMBER OF ROWS of
Bucket Elevator Calculators, Quick Reference Guides, & more
Elevator calculations Bechtel GmbH
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(PDF) Bucket Elevator Capacity Formulas Vc Medina
Engineering(55-68) PDF Version (Page 55)