Gravity Separation

Shaking Table / 6-S Series

A gravity-separation table for evaluating liberated gold, tungsten, tin, tantalum, and chromite across published deck feed ranges. The table itself uses water and deck motion for physical separation; recovery and any downstream treatment require representative testwork.

6-S gold gravity separation shaking table for fine gold, tungsten, tin and tantalum mineral processing
Models
4
Min Feed Size
0.074 mm
Separation Method
Gravity

How a Shaking Table Works

A shaking table separates particles through the combined effects of density, size, shape, liberation, wash water, and asymmetric deck motion. The table is a physical separation stage; the wider plant may still require downstream treatment selected from representative testwork.

01

Asymmetric Vibration

The drive unit creates a slow forward stroke and fast return stroke. Heavy particles are carried updip by inertia on the forward stroke; lighter particles are left behind on the fast return.

02

Transverse Water Flow

Wash water flows across the deck from the launder side toward the tailings side. Lighter, smaller particles are swept sideways faster; heavy particles resist the water and travel further up the deck.

03

Fan-Shaped Discharge

The combined action stratifies particles into a fan: high-SG concentrate at the top, middlings in the middle, and tailings at the bottom. Splitters divide each zone for separate collection.

What the table itself does

Inside the table, separation uses density, particle size and shape, liberation, water, and deck motion. That physical duty does not define the wider plant: flotation, leaching, concentrate treatment, water management, and disposal controls still depend on mineralogy and testwork.

Model Specifications

4 models including a dedicated slime deck (LS-4500) for sub-74 μm feed.

Technical data and model comparison
ModelDeck SizeMax Feed SizeCapacityMotor PowerWeightGet Quote
6-S (1100)1100×500 mm2 mm0.1–0.5 t/h0.55 kW0.15 tQuote
6-S (2100)2100×900 mm2 mm0.1–0.8 t/h0.75 kW0.3 tQuote
6-S (4500)4500×1850 mm2 mm0.2–1.5 t/h1.1 kW0.48 tQuote
LS-4500 (Slime)4500×1850 mm0.5 mm0.15–1.0 t/h1.1 kW0.48 tQuote

Capacity by Feed Size Type

Coarse Sand

2–0.5 mm

≤1.5 t/h published

Use the model table for the selected deck; actual duty requires representative feed testing

Fine Sand

0.5–0.074 mm

0.3–1.2 t/h

Fine-grained gold, fine cassiterite, tantalum-niobium

Ore Slime

< 0.074 mm

0.1–0.6 t/h

The LS-4500 slime deck is listed for sub-74 μm feed; recovery and suitability must be confirmed by representative mineral testwork

* Capacity per single table unit. Run multiple tables in parallel to scale throughput.

Gold Recovery

Fine Gold Recovery with a 6-S Shaking Table

The 6-S table can be evaluated as a physical gravity stage for liberated free gold in alluvial or hard-rock circuits. Actual recovery and the lower effective particle size vary with liberation, size distribution, deck selection, stroke, and wash water, while any downstream chemical treatment belongs to the wider flowsheet and must be assessed separately.

Testwork

Recovery Rate

Confirm on representative liberated feed at the intended deck, stroke, and wash-water settings

<74 μm

Fine-Feed Duty

The LS-4500 slime deck is listed for fine feed; no universal lower recovery size should be assumed

0.3–0.6 t/h

Fine Gold Capacity

Per table on 0.074–0.5 mm gold feed; 0.15–0.3 t/h below 0.074 mm

Gravity stage

Separation Method

The table itself performs physical separation; any downstream flotation, leaching, concentrate treatment, or export specification depends on the selected flowsheet and testwork

Two-Stage Gravity Circuit Option for Very Fine Gold

If your gold is very fine or your grade is low, a shaking table alone can overload and lose values. Pairing a centrifugal concentrator (rougher) with the table (cleaner) can reduce table loading and may improve fine-gold recovery. Confirm the combined result with representative testwork before fixing the flowsheet.

Step 01

Pre-concentrate by Centrifuge

For ultra-fine or low-grade gold, run a centrifugal (Knelson-type) concentrator as the rougher. It captures fine free gold from large slurry volumes that a table alone would lose to overload.

Step 02

Clean on the Shaking Table

Feed the centrifuge concentrate to the 6-S table as a cleaning stage. The achievable concentrate grade, recovery, and suitability for downstream treatment must be confirmed on representative liberated feed.

Step 03

Re-table the Middlings

Return middlings for a second pass to evaluate whether overall recovery improves. A two-stage centrifuge and table circuit should be sized and recovery-tested on representative liberated feed.

Submit ore type, liberation data, particle-size distribution, and daily tonnage so the gravity flowsheet assumptions can be documented in the technical proposal.

Document Gravity Inputs

Minerals to Evaluate by Testwork

Density contrast is only one input. Liberation, particle size and shape, deck selection, stroke, and wash water determine whether a mineral can be separated on a table.

Gold

SG 19.3

Alluvial and hard-rock fine gold may be evaluated after liberation and size-distribution testing

Tungsten (Wolframite)

SG 7.1–7.5

Wolframite is a possible gravity-separation duty; concentrate grade and recovery require representative testwork

Tin (Cassiterite)

SG 6.8–7.1

Fine cassiterite is a possible duty; lower effective size, grade, and recovery require representative testwork

Tantalum & Niobium

SG 5.6–8.1

Rare metal concentration; often combined with magnetic separation

Chromite

SG 4.5–4.8

Pre-concentration before smelting; removes gangue silicates efficiently

Iron Ore (Fine)

SG 4.9–5.3

Fine hematite and magnetite slimes recovery; supplement to magnetic separation

Main Components

Six key components — each adjustable during operation to optimise recovery and grade for your specific ore.

01

Deck Surface

Fiberglass or rubber-lined deck with longitudinal riffles (grooves). Riffles trap heavy minerals while lighter particles are swept transversely by wash water. Spacing and height are optimised per feed size.

02

Drive Mechanism

Eccentric or vibrating drive unit creates asymmetric reciprocating motion — a slow forward stroke and fast return. The resulting differential inertia moves heavy particles updip along the riffles.

03

Stroke Adjuster

Adjusts stroke amplitude (8–36 mm) while running. Longer stroke moves material faster and suits coarser feed; shorter stroke improves fine-particle separation.

04

Tilt Adjuster

Controls the deck's cross-slope (0–5°). Steeper slope increases water velocity and suits faster-settling heavy particles; shallower slope suits fine slimes.

05

Feed Box & Splitter

Distributes feed slurry evenly across the full deck width. Splitters at the discharge end separate concentrate, middlings, and tailings zones for independent collection.

06

Wash Water Launder

Distributes clean wash water across the full deck width. Water flow is an important operating variable alongside feed grading, solids loading, stroke, slope, riffle condition, and mineral liberation; settings require testwork and operating trials.

Selection guide

Four parameters shape the candidate shaking-table configuration, but representative feed testing remains the basis for deck choice, settings, capacity, and recovery.

Step 01

Determine Feed Particle Size

The 6-S(4500) standard deck handles 0.074–2 mm. For feed below 0.074 mm (slime), specify the LS-4500 slime deck variant with finer riffles and lower wash water velocity.

Step 02

Estimate Required Capacity

The published model range is 0.1–1.5 t/h per unit. Use representative testwork and the selected deck's model data before deciding how many parallel tables are required.

Step 03

Confirm Specific Gravity Difference

Shaking tables rely on density, particle size, shape, liberation, wash water, and deck motion. Do not use a fixed SG-difference threshold as a performance prediction; confirm separation on representative feed.

Step 04

Plan Concentrate Handling

Shaking tables produce concentrate, middlings, and tailings streams. Plan collection launders and splitter positions before installation, and evaluate re-tabling through testwork rather than assuming a fixed grade improvement.

Need a gravity separation flowsheet?

Tell us your ore type, feed size, target mineral, and throughput. We can prepare a first-pass table circuit for review against representative testwork, including feed preparation and concentrate handling.

Ask an Engineer

Maintenance basis

Shaking tables are low-maintenance, but riffle wear and wash water consistency are critical for maintaining recovery rate.

Operating checks

  • Check deck surface for worn or missing riffles — replace immediately to avoid recovery loss
  • Verify wash water flow rate is steady; fluctuations cause grade/recovery swings
  • Inspect stroke length with a ruler; adjust if outside target range
  • Clean feed distributor of coarse material build-up

Planned inspection

  • Lubricate the eccentric-drive bearing at the maker's specified lubricant, quantity, operating-hour, and contamination limits
  • Check all deck fastening bolts for looseness due to vibration
  • Inspect splitter positions and re-set if concentrate/tailing boundary has shifted
  • Clean rubber deck surface with soft brush — do not use metal scrapers

Condition-based service

  • Measure riffle height at multiple points and compare it with the deck maker's wear limit and the observed separation boundary before deciding on replacement
  • Inspect drive spring or rubber mounting for fatigue cracks
  • Check motor current draw — rising current with no load change indicates drive wear
  • Re-calibrate tilt angle with a digital level

Why Choose MarsCrusher Shaking Table

  • Riffled deck supports density-based separation under controlled feed conditions
  • Deck type and feed classification should be matched to the target particle range
  • Stroke adjustment for operating-condition tuning
  • Corrosion-resistant fiberglass deck
  • Listed drive power from 0.55 to 1.1 kW across the four models

FAQ

Shaking Table FAQ

Short answers to common procurement questions before requesting quotation.

What particle size range works best on a shaking table?
Shaking tables are strongest in fine to medium particle ranges where specific-gravity contrast is clear. Very fine slime feeds may require dedicated table configuration.
How much throughput can one table handle?
Published 6-S model duties span roughly 0.1-1.5 t/h depending on deck, feed size, and material. Estimate table count by dividing required dry-solids feed by a verified per-table duty and rounding up, then check classification, testwork, and operating-spare needs rather than using one universal count.
What controls the grade and recovery balance?
Stroke, deck slope, wash-water flow, and splitter position are the main tuning variables. Small adjustments can significantly change separation results.
Is shaking table suitable for gold and tin recovery?
Yes. It is a standard gravity concentration unit for gold, tin, tungsten, and other high-specific-gravity minerals in appropriate size ranges.
How should payment terms be verified?
Payment method, deposit schedule, currency, beneficiary, and release documents must be stated in a supplier-issued proforma invoice or sales contract. Do not transfer funds based only on website copy; independently verify the beneficiary and document version before payment.
How should shipping terms be confirmed?
Available destinations and Incoterms depend on the quoted equipment and route. The quotation should name the port, Incoterms version, freight scope, packing method, export-document responsibility, insurance, and any exclusions; destination duties and local permits also need separate confirmation.
What installation and commissioning scope should I confirm?
Ask the quotation to state which drawings, manuals, remote support, site supervision, commissioning tests, and acceptance records are included. If on-site work is offered, the contract should also allocate travel, visa, accommodation, safety, tooling, and schedule responsibilities.
How should I plan spare and wear parts?
Request a wear-parts list with part numbers, material grades, recommended opening stock, quoted availability, and replacement lead time. Parts availability and interchangeability are not confirmed until they appear in the written supply scope.
What must the warranty document cover?
The warranty period, start date, covered components, exclusions, evidence required for a claim, and available remedy must be stated in the signed contract. Website information is not a warranty certificate; pay particular attention to wear parts and site-condition exclusions.

Project brief

Start with the operating duty, then narrow the equipment path.

Share four operating inputs so we can rule out unsuitable models early and explain the assumptions behind the shortlist.