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Andritz Marine

Decanter Centrifuge F (F-Series)

Separator/Purifier · Separators & Purifiers

Technical data from manufacturer or class sources · not yet verified by a person

Andritz Decanter Centrifuge F (F-Series) — Food processing (dairy, tapioca starch, palm oil, pulses, lentils, oat milk), hygienic separation.

Specifications

Technical data.reference — unverified

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G-Force CapacityUp to 3,500g
G-force3,500 g
Inspection

Inspector Detail

Common issues

  • Scroll conveyor and bowl wear from abrasive solids in the feed, reducing separation efficiency over time
  • Differential gearbox wear from continuous high-torque operation
  • Vibration from bowl imbalance caused by uneven solids buildup or wear tile loss
  • Seal leakage at the feed or discharge ports causing product loss or CIP fluid ingress
  • Bearing wear from continuous high-speed operation
  • Erosion of wear tiles/liners at the conveyor flights and casing in abrasive-duty applications

Inspection checklist

  • Check gearbox oil condition and running temperature
  • Monitor vibration levels at the bearing housings against baseline
  • Inspect wear tiles/liners at the scroll flights and casing for erosion
  • Verify differential gearbox torque/speed readings against normal operating values
  • Confirm CIP cycle completion and post-clean verification (conductivity/visual check)
  • Inspect seals at the feed inlet and centrate/cake discharge points
  • Check separation efficiency by sampling the centrate for product carryover

Service intervals

Gearbox oil analysis/changeper the maker's schedule, commonly every few thousand hours or annually
Wear tile/liner inspectioncondition-based on feed abrasiveness, commonly every few months in abrasive-duty service
Bearing inspection/renewalat the maker's major overhaul interval
CIP system function checkeach production cycle or daily, depending on duty

Typical wear limits

Wear tile/liner thicknesscommonly renewed once thickness is reduced by roughly half of the original, or per the maker's minimum-thickness gauge check - confirm against Andritz's own guidance for the F-series
Vibration trenda step change above the unit's own baseline is the practical trigger for inspection, rather than a fixed generic number
Bowl/scroll differential speeda change in the normal running differential for a given feed rate is an indirect indicator of scroll or bearing wear - compare against the unit's own commissioning behaviour

Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.

Critical spares

  • Wear tile/liner inserts for the scroll and bowl, commonly tungsten-carbide faced
  • Mechanical seal sets for feed and discharge
  • Main bearing sets
  • Gearbox coupling elements
  • Drive belts, if fitted to this configuration

Safety

  • High rotational bowl speed - guarding and interlocks must remain intact and functional
  • CIP chemicals, typically caustic and acid, require the PPE specified on their safety data sheets
  • Entanglement hazard at any open drive components during maintenance

Class survey

Where this unit is part of a certified processing system, hygienic design and CIP validation records are typically what is checked rather than a conventional machinery wear survey; where it is general auxiliary machinery, ordinary condition-based inspection applies.

Estimated lifetime: Bowl and frame commonly remain in service for many years with periodic wear tile, seal and bearing renewal; there is no single running-hour figure for the unit as a whole, since service life is governed by feed abrasiveness.

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