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Screening & Feeder Parts

Overview

Feeder and screening assemblies consist of eight main categories of components that work together to ensure uniform material feeding, precise stratification, and efficient screening in industries such as mining, construction, and metallurgy. These components include the feeder body/frame, vibrator assembly, suspension assembly, drive system, feeder deck/grizzly sections, wear liners, fasteners and small parts, and various auxiliary devices. Proper selection, installation, and maintenance of each category are critical for reliable operation and long service life.

GUBT vibrating screen spares including screen plates, meshes, vibrators, couplings, and various screening equipment parts

Materials

Key materials are chosen for their strength, wear resistance, and vibration performance:
Component CategoryMaterialsFunction
Feeder Body / FrameCarbon steel, alloy steelStructural support; bears material load and vibration
Vibrator AssemblyHardened steel shafts, bearings, sealsGenerates controlled linear/circular/elliptical vibration
Suspension AssemblySteel coil springs, rubber springsIsolates vibration; limits displacement
Drive System (Belt & Hydraulic)Rubber V-belts, steel pulleys, hydraulic motorsTransmits power to the vibrator
Feeder Deck / Grizzly SectionsHigh-manganese or alloy steel bars; wear linersFeeds and stratifies material; screens oversize
Wear Components / LinersRubber, polyurethane (PU), ceramic inserts, UHMWPEProtects contact surfaces from abrasion and impact
Fasteners & Small PartsHigh-grade bolts, nuts, washers, pins, sealsConnects, seals, and secures assemblies
Other ComponentsSensors, guards, auto-grease unitsSafety, monitoring, and lubrication support
GUBT internal housing for vibrating screens or crushers
GUBT vibrator for vibrating screen equipment
GUBT gear for vibrating screen drive system

Feeding & Screening Mechanisms

  • Vibratory Feeding
    Vibrators—either electromagnetic or mechanical with eccentric shafts—produce linear, circular, or elliptical motions that propel material along the feeder pan at adjustable amplitude and frequency.
  • Gravity Feeding
    Inclined or apron feeders rely on gravity across a sloped surface, allowing bulk or hot materials to advance uniformly without vibration.
  • Grizzly Scalping
    Grizzly sections, made of parallel steel bars or punched plates, remove oversized rocks and debris at the feeder inlet to protect downstream equipment.
  • Stratification & Screening
    Screening decks—inclined, horizontal, or multi-slope—use vibration and slope to layer particles by size; fines pass through apertures while coarse particles travel over the deck.
  • Flow Control
    Feed rate and stratification can be adjusted via variable-frequency drives on vibrators, amplitude settings, or changes in deck inclination to meet processing requirements.

Technical Glossary

 
  • Feeder Body / Frame: Welded steel structure supporting all feeder components.
  • Vibrator Assembly: Unit generating vibration, composed of eccentric shafts, gearbox, bearings, and housing.
  • Suspension Assembly: Springs or rubber elements isolating the vibrating frame from the support structure.
  • Drive System: Power transmission via V-belt or hydraulic motor to the vibrator assembly.
  • Feeder Deck / Grizzly: Panels or bar sections where material is fed and initially screened.
  • Liner Assembly: Wear-resistant panels protecting high-impact and high-abrasion areas.
  • Wear Plate: Removable panels made of rubber, PU, ceramic, or UHMWPE to shield equipment surfaces.
  • Lubrication System: Components such as grease fittings and auto-grease units ensuring proper oil or grease delivery.
  • Stroke: Peak-to-peak displacement of a vibrating component.
  • Stratification: The layering effect in screening where finer particles migrate downward.
  • Counterweight: Masses on vibrator shafts creating unbalanced centrifugal force.
  • Parallel Key: Keyed connection transmitting torque between shafts and pulleys.
  • Coupling: Device joining two shafts for power transmission.
  • Hydraulic Drive Unit: Vibrator drive option using a hydraulic motor and manifold.
  • Breather: Vent device on gear housings to prevent pressure build-up.
  • Lockout & Tagout: Safety procedure to prevent accidental equipment startup during maintenance.
  • Material Flow: Movement and path of material through feeding and screening equipment.
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GUBT provides reliable, one-stop crusher parts solutions for the mining and aggregate industries, helping customers improve efficiency and equipment stability.
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All brand names, model names, part numbers, or marks are owned by their respective manufacturers. GUBT has no affiliation with the OEM. These terms are used for identification purposes only and are not intended to indicate affiliation with or approval by the OEM. All parts are manufactured by, sourced by, and warranted by GUBT and are not manufactured by, purchased from, or warranted by the OEM.
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