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Equipment · Gravity circuit

Machines of a gravity plant.

Shaking tables, classifiers and jigs — and the crushing, grinding, dewatering and pumping around them. Every machine is sized from your sample’s gravity test work, and delivered inside the same offer as the concrete and steel it stands on.

Process flow

Five stations, one closed water loop

Ore is ground, screened and classified, concentrated on shaking tables, and the process water is thickened, filtered and returned to the mill. Every machine on this page sits somewhere on this line.

The ten steps to a running plant
Isometric process-flow illustration of a mineral processing plant: feed hopper and ball mill, vibrating screen, screw classifier, shaking-table gravity concentrator with a concentrate bin, then a dewatering screen and thickener, with a dashed blue recycled-water line returning from the thickener through a pump to the mill
A gravity plant with a closed water loop: 01 grinding → 02 screening → 03 classification → 04 gravity concentration on shaking tables → 05 water treatment & recycling
  1. 01Grinding
  2. 02Screening
  3. 03Classification
  4. 04Gravity concentration
  5. 05Water treatment & recycling
  6. Blue dashed = recycled process water, closed loop

Machines

Every machine on the plant plan

Filter by division, or point at a zone on the plan: the machines that live there light up, and each card carries its duty and the wear note the test work decides.

Ask for a machine quotation

16 machines · all divisions

Plant plan: the four divisions of a gravity plant Plan view of a gravity beneficiation plant in four zones from left to right. 01 Feed and crushing: run-of-mine stockpile, bunker and jaw crusher, screen, crushed-ore bin. 02 Grinding and classification: rod and ball mills, hydrocyclone cluster, pump box and hydraulic classifier bank. 03 Gravity concentration: three terraced shaking tables with concentrate launders, jig, concentrate bay. 04 Dewatering and water: lamella thickener, filter press, process-water tank and return pump. Process flows left to right; the access road runs along the bottom of the site. Access road 01 Feed & Crushing Bunker · crushers Crushed ore bin 02 Grinding & Classification Mills · classifiers Classifier bank 03 Gravity Concentration Tables · jigs Concentrate bay 04 Dewatering & Water Thicken · filter Return pump

Scroll the plan sideways

Plant plan · All divisions

Four zones, left to right

Ore enters at the feed and crushing zone, is ground and classified to the size the test work set, concentrated on the shaking tables, and leaves the water zone as concentrate and stackable tailings. Pick a zone on the plan, or a division filter, to see its duty, its equipment and the scope of the offer that owns it.

  • 01Feed & crushing
  • 02Grinding & classification
  • 03Gravity concentration
  • 04Dewatering & water
  • 01

    Bunker / feed hopper

    Receives and buffers ore so the circuit sees a steady, metered feed.

    WearWear liners on the impact face; chute angles set to the ore’s flow.

  • 02

    Jaw crusher

    Primary size reduction of run-of-mine ore to a secondary-crusher feed size.

    WearJaw liner alloy selected from the abrasion index measured in test work.

  • 03

    Cone crusher

    Secondary and tertiary crushing in closed circuit with the screen.

    WearMantle and bowl liner profile chosen for the ore’s abrasion class.

  • 04

    Conveyor belt

    Moves crushed ore between stations and feeds the mill and stockpiles.

    WearBelt cover grade and impact idlers specified to lump size.

  • 05

    Vibrating screen

    Sizes crusher product and closes the crushing circuit.

    WearDeck media selected for the duty — abrasion-resistant where the ore demands it.

  • 06

    Rod mill

    Coarse grinding with a narrow product size — the usual mill ahead of a gravity circuit.

    WearRod charge and liners specified from Bond rod and abrasion tests.

  • 07

    Ball mill

    Grinds to the liberation size set by the gravity test work — never finer than the ore needs.

    WearLiner and media sized from Bond ball and abrasion tests.

  • 08

    Micronised screen

    Fine sizing of mill discharge; closes the grinding circuit.

    WearFine mesh media scheduled under a wear-part programme.

  • 09

    Hydrocyclone

    Classifies mill discharge; coarse underflow returns to the mill, fine overflow goes forward.

    WearLined apex and vortex finder — the highest-wear items in the circuit.

  • 10

    Hydraulic classifier

    Density-and-size classification ahead of the tables: one even feed per table bank.

    WearLow-velocity duty; wear limited to teeter plate and discharge.

  • 11

    Shaking table

    Gravity separation on a riffled deck — gold, pyrite, lead, barite, chromite in test work and in the plants we have laid out.

    WearDeck surface and riffles are the only wearing parts; low energy, no reagents.

  • 12

    Jig

    Coarse gravity separation with a pulsing water bed — the first stage for coarse-liberated ore and for ferrochrome metal in slag.

    WearScreen bed and ragging are the wearing parts.

  • 13

    Dewatering screen / table

    Drains coarse concentrate and tailings ahead of stacking or filtration.

    WearPolyurethane or rubber deck media selected for the duty.

  • 14

    Lamella thickener

    Recovers the bulk of the process water from concentrate and tailings streams on a small footprint.

    WearPlate pack and feedwell wear parts; low-abrasion duty.

  • 15

    Filter press

    Dewaters concentrate and tailings to a stackable cake — no pond where the site allows it.

    WearFilter cloth selection set by particle size and slurry chemistry.

  • 16

    Slurry pump

    Moves slurry and return water between stations.

    WearImpeller and liner material matched to the abrasion class of the stream.

  • Not on the register?

    Describe the duty — tonnage, feed size, abrasion class — and we size or source the machine inside the offer.

    Describe the duty