NUMERICAL VALUES

• Mixing time of vertical mixer

  15-30 mins
• Speed requirement for chain conveyors in feed milling plant

  20-30 m/min
• Usual storage period for mixed feed

  2-7 days
• Approximate rpm of a batch type feed mixer

  25 rpm
• Standard size of pallet for 25 kg bag feeds

  120cm x 80cm
• Standard size of pallet for 50 kg bag feeds

  120cm x 160cm
• Recommended minimum slope of gravity conveyors for dry grains

  35
• Recommended minimum slope of gravity conveyors for meal and light ingredients

  60
• Approximate density of pig and poultry feeds

  450 kg/m³
• Recommended size of scalper for paddy

  0.2-0.25 m²/ton
• Recommended initial moisture content of material when drying paddy in low-temperature-deep-bed dryer

  18% and below
• Range of efficiency of ordinary cyclone (%)

  18-90
• Particle Size of Corn Grit No. 10

  1.80-2.00 mm
• Particle Size of Corn Grit No. 12

  1.50-1.70 mm
• Particle Size of Corn Grit No. 14

  1.20-1.40 mm
• Particle Size of Corn Grit No. 16

  1.10-1.19 mm
• Particle Size of Corn Grit No. 18

  0.86-1.09 mm
• Particle Size of Corn Grit No. 20

  0.70-0.85 mm
• Maximum percentage of milling recovery for rice mills

  69 %
• Minimum hulling efficiency requirement for rice mill

  90 %
• Percent speed difference between rubber rollers


  25 %
• Husking ratio of a rubber roll huller

  80-90 %
• Recommended peripheral speed of a rubber rollers for hulling operation

  18 m/s
• Prescribed peripheral velocity for a disk huller

  14 m/s
• Recommended speed of rotating cone in a vertical abrasive whitening cone

  13 m/s
• Recommended speed for a horizontal abrasive whitener

  1000 rpm
• Adjustment clearance for rubber brakes in vertical-abrasive whitening cone from cone coating

  2-3 mm
• Capacity of compartment type separator in kg of brown rice/hour

  40-60
• Recommended time allowing coconut milk to stay in a jar which causes the oil to separate and a layer of curd to appear at the top of the jar

  24 hours
• Collection time requirement for harvesting coconut sap for sugar processing 


  4-5 hours
• Cooking temperature for coconut sap for sugar processing

  100 °C
• Coconut sap brix requirement for coconut sugar


  13.0-14.5
• Recommended temperature for drying coconut sugar

  65-70 °C 
• Recommended relative humidity in drying coconut sugar

  35-45 % 
• Drying temperature of copra

  50-95 °C
• Recommended optimum stack height for paddy stored in warehouse

  16 layers
• Recommended optimum stack height for maize stored in warehouse

  18 layers
• Size of wire mesh used in storage to protect stored product from rodents and insects

  1/4 inch mesh
• Allowable space between the top of the stacks and the roof truss of warehouse

  1 meter
• Recommended dimensions for maximum piling of stacks to conform with the fumigating sheets in situations where warehouses cannot be made airtight

  7.3x21.9x4.5 meters