Worm screw dosing feeder PR

modularmotorizedfor powders

PR Ribbon Flight Screw Feeders ensure uniform discharging and feeding of lime in special dosing plants from a silo into a dissolver or micro-feeding device. Description A specialised version of the TU-type screw conveyor, configured in particular for use with hydrated lime, the PR-type Tubular Screw Feeder comes with a ribbon flight screw. For process reasons this screw feeder type is often equipped with a variable speed drive. Function • Outside tube diameters: 70 mm (2.8 in), 82 mm (3.2 in), 114 mm (4.5 in), 168 mm (6.6 in) • Tubular casing in standard flanged sections with one section made to measure • Standard inspection hatch beneath inlet • Ribbon flight screw with splined shaft couplings • Direct-mounted WAM gear reduction unit (with or without mechanical variable speed drive) with incorporated, fully protected, maintenance-free end bearing assembly and self-adjusting packing gland seal • Standard flange-mounted electric motor • No intermediate hanger bearings • Feed rates: 70 ~ 4,500 litres per hour (0.04 ~ 2.6 cfm) • Installed drive power: 0.37 kW (0.5 HP) ~ 3.0 kW (4.0 HP) Benefits • Uniform material flow • High feeding accuracy • No flushing Options • Fluidised inlet hopper • Fluidisation pads