Phosphate Rock KYF II External Air Supply Flotation Machine for Beneficiation 40-160 m³ The Phosphate Rock KYF II External Air Supply Flotation Machine for Beneficiation 40-160 m³ is engineered for phosphate rock beneficiation. With 40-160 m³ effective cell volume and a KYF II pneumatic layout it delivers stable aeration, strong pulp circulation and high recovery across roughing, scavenging and cleaning stages. Key Features Very large cell volume for high tonnage phosphate