Rotor weighfeeder Pfister® URW

Highly accurate and reliable gravimetric feeding and dosing of pulverised material with integrated pneumatic transport

Rotor weighfeeder Pfister URW
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Rotor weighfeeder Pfister® URW is especially designed for exact dosing of mill components and additives such as fly ash, bypass and kiln dust or iron sulphate. The integration of material extraction, weighing, dosing and material transfer into the pneumatic conveying line makes it a compact system that provides accuracy and constancy. Powered by the innovative dosing strategy ProsCon®, the mass flow is controlled in advance. Thus, the outstanding constancy of metering with rotor weighfeeder Pfister® URW and dosing strategy ProsCon® makes it possible to achieve accurate material dosing.


Application fields: Kiln process, grinding process

Materials: Mill components and additives such as fly ash, bypass and kiln dust, calcium hydrate, iron sulphate etc.

Dosing capacity: Up to 25 t/h


• Silo cone aeration
• Material activator
• Shut-off gate
• Connection unit
• Calibration pre-hopper
• Rotor weighfeeder Pfister® URW
• Blower


• Stable material dosing
• Outstanding reliability
• High short- and longterm accuracy
• Compact, simple and modular design
• Large feeding range
• Online calibration during operation
• Up to 4 systems under one silo possible
• Slowly moving rotor
• Easy to maintain

Dosing control:

• Feeder dosing controller Pfister® FDC
• Prospective control ProsCon®
• FlowBalanceTM control
• User oriented interfaces
• Remote service access available

Certificates: ISO 9001


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Installation sketch of rotor weighfeeder Pfister® URW

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