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Rotary Calcining & Drying

Powder Processing & Technology, LLC provides contract calcination and drying services using rotary calciners or kilns. We have a broad range of equipment and the know-how to meet virtually any high temperature requirement. Our gas fired calciners and our electric kilns can process powders up to 2700 °F. We can dry small sample batches or tackle large scale production processing of up to 1,500 lbs of powder an hour. Our calciners are used for both drying and altering the composition if necessary through the introduction of additives. Please contact Powder Processing & Technology for more information on our calcination and powder drying services.

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Rotary Calcining & Drying Capabilities

Calcination Equipment
Indirect Fired Calciner #6 (Gas Fired)
  • Temperature capability of 1107°C
  • Tube RPM of 0.75 - 6
  • Tube length of 10 meters
  • Tube diameter of 1 meter
  • 3 individual controlled temperature zones
  • Powder and pellet feed capability
  • 544 kg/hr maximum throughput
  • Can be retrofitted to run nitrogen atmosphere
Indirect Fired Calciner #2 (Gas Fired)
  • Temperature capability of 1107°C
  • Tube RPM of 0.75 - 6
  • Tube length of 10 meters
  • Tube diameter of 1 meter
  • 3 individual controlled temperature zones
  • Powder and pellet feed capability
  • 544 kg/hr maximum throughput
Direct Fired Calciner #5 (Gas Fired)
  • Temperature capability of 1425°C 
  • Tube RPM of 0.50 - 6.0
  • Tube length of 12 meters 
  • Tube diameter of 1 meter
  • Slurry feed or pellet capability
  • 680 kg/hr maximum throughput
Indirect Fired Calciner #7 (Electric Fired)
  • Temperature capability of 1093°C
  • Tube RPM of 0.75 - 6
  • Tube length of 3 meters
  • Tube diameter of 35 cm
  • 4 individual controlled temperature zones
  • Powder and pellet feed capability
  • 90 kg/hr maximum throughput
Indirect Fired Calciner #8 (Gas Fired)
  • Temperature capability of 1099°C
  • Tube RPM of 0.75 - 6
  • Tube length of 7.3 meters
  • Tube diameter of 60 cm
  • 3 individual controlled temperature zones
  • Powder feed capability
  • 250 kg/hr maximum throughput
Indirect Fired Calciners #9 & #10 (Electric Fired)
  • Temperature capability of 1100°C
  • HT Alloy Tube; 0.6mx10m(L) with 7.3m heating zone
  • Tube RPM of 0.75 - 6
  • 3 individual controlled temperature zones
  • Powder feed capability
  • 250 kg/hr maximum throughput
  • 2 units are available
  • Nitrogen Atmospheric Control Capability (#10)
Calcining / Sintering Tunnel Kilns (Electric)
  • Temperature capability to 1482°C
  • Material loaded into refractory saggers on kiln cars
  • Kiln Car capacity of 227 kg at 1.50 g/cm3
  • Push intervals of 45 minute to 3 hours (around 37 cars in kiln)
  • Powder and pellet materials
  • 3 unit availability
  • 2 units have nitrogen atmosphere capability
Calcining / Sintering Shuttle Kiln (Electric)
  • Temperature capability to 1340°C
  • Material loaded into refractory saggers on refractory shelves
  • Capacity of 3674 kg at 1.5 g/cm3
  • Powder, pellet and pressed compact materials
  • Nitrogen atmosphere capability
  • Manufactured by Nabertherm
Alternative Drying Equipment
Pan Drying – Various sized Blue M Ovens

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