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Pneumatic Fan

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Series HKPF

Pneumatic Fan

The pneumatic fan is the high-pressure centrifugal fan that drives the mill's pneumatic conveying system, carrying stock from the roller mills to the sifters.

Model
8 models
Series
HKPF

Pneumatic conveying is the main system that moves stock between passages in a modern mill, and the pneumatic fan is its pressure source, selected to overcome the resistance of all pipes, cyclones and filters in the line.

A scroll housing with a backward-curved impeller gives high efficiency at high static pressure. The impeller is dynamically balanced, which means long bearing life and low noise.

Air volume, air pressure, motor rating and dimensions are given in the model table. The fan is mounted on vibration-isolating pads.

Key features

  • High-efficiency backward-curved impeller
  • Stable operation at high static pressure
  • Dynamically balanced rotor
  • Mounted on vibration-isolating pads
  • A wide power range in the model table

Applications

  • Pneumatic conveying lines in mills
  • Product transport between roller mills and sifters
  • Filter and cyclone systems
Animated schematic Paused

How it works

Working principle

Grinding turns cleaned, conditioned grain into flour, semolina and bran in several passes through roller mills and plansifters.

  1. 1A feed roll meters the stock into an even curtain across the full roll length.
  2. 2Two counter-rotating fluted rolls, one faster than the other, shear and crush the grain in the nip; pneumatic engagement lifts the rolls apart when the feed stops.
  3. 3The ground stock falls to the outlet and is conveyed to the plansifter, which separates it into fractions for the next pass.

What goes in, what comes outDrag the divider

Clean, conditioned grainFinished flour

HKPF

Technical specifications

  • Motor power

    19–110

    across 8 models

  • Weight

    375–1,110kg

    across 8 models

  • HKPF 18

    Dimensions (mm)

    A (mm)
    870
    B (mm)
    890
    C (mm)
    1075
    D (mm)
    580
    E (mm)
    730
    F (mm)
    235
    G (mm)
    160
    H (mm)
    300

    Motor power

    Motor power
    18,5kW 3000rpm

    Air pressure

    Air Pressure (mmWC)
    900

    Air requirement

    Air Volume (m³/min)
    60

    Weight

    Weight (kg)
    375
  • HKPF 22

    Dimensions (mm)

    A (mm)
    950
    B (mm)
    910
    C (mm)
    1040
    D (mm)
    570
    E (mm)
    700
    F (mm)
    235
    G (mm)
    250
    H (mm)
    300

    Motor power

    Motor power
    22kW 3000rpm

    Air pressure

    Air Pressure (mmWC)
    1000

    Air requirement

    Air Volume (m³/min)
    75

    Weight

    Weight (kg)
    400
  • HKPF 37

    Dimensions (mm)

    A (mm)
    1020
    B (mm)
    1000
    C (mm)
    1160
    D (mm)
    630
    E (mm)
    800
    F (mm)
    260
    G (mm)
    250
    H (mm)
    300

    Motor power

    Motor power
    37kW 3000rpm

    Air pressure

    Air Pressure (mmWC)
    1100

    Air requirement

    Air Volume (m³/min)
    116

    Weight

    Weight (kg)
    520
  • HKPF 45

    Dimensions (mm)

    A (mm)
    1060
    B (mm)
    1020
    C (mm)
    1180
    D (mm)
    630
    E (mm)
    790
    F (mm)
    275
    G (mm)
    300
    H (mm)
    350

    Motor power

    Motor power
    45kW 3000rpm

    Air pressure

    Air Pressure (mmWC)
    1200

    Air requirement

    Air Volume (m³/min)
    140

    Weight

    Weight (kg)
    610
  • HKPF 55

    Dimensions (mm)

    A (mm)
    1180
    B (mm)
    1040
    C (mm)
    1280
    D (mm)
    830
    E (mm)
    890
    F (mm)
    290
    G (mm)
    320
    H (mm)
    350

    Motor power

    Motor power
    55kW 3000rpm

    Air pressure

    Air Pressure (mmWC)
    1200

    Air requirement

    Air Volume (m³/min)
    166

    Weight

    Weight (kg)
    710
  • HKPF 75

    Dimensions (mm)

    A (mm)
    1200
    B (mm)
    1140
    C (mm)
    1360
    D (mm)
    730
    E (mm)
    900
    F (mm)
    320
    G (mm)
    350
    H (mm)
    400

    Motor power

    Motor power
    75kW 3000rpm

    Air pressure

    Air Pressure (mmWC)
    1300

    Air requirement

    Air Volume (m³/min)
    200

    Weight

    Weight (kg)
    820
  • HKPF 90

    Dimensions (mm)

    A (mm)
    1300
    B (mm)
    1170
    C (mm)
    1370
    D (mm)
    780
    E (mm)
    925
    F (mm)
    350
    G (mm)
    350
    H (mm)
    400

    Motor power

    Motor power
    90kW 3000rpm

    Air pressure

    Air Pressure (mmWC)
    1300

    Air requirement

    Air Volume (m³/min)
    285

    Weight

    Weight (kg)
    950
  • HKPF 110

    Dimensions (mm)

    A (mm)
    1410
    B (mm)
    1230
    C (mm)
    1430
    D (mm)
    880
    E (mm)
    980
    F (mm)
    385
    G (mm)
    410
    H (mm)
    500

    Motor power

    Motor power
    110kW 3000rpm

    Air pressure

    Air Pressure (mmWC)
    1400

    Air requirement

    Air Volume (m³/min)
    320

    Weight

    Weight (kg)
    1110