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Modular Gravity Concentration · Including spirals

Modular gravity concentration plants for mineral recovery

Practical modular packages using jigs, spirals, centrifugal concentrators and shaking tables — for primary concentration and scavenging duties on mining projects.

Discuss gravity concentration requirements
  • Jigs · spirals · centrifugals · tables
  • Primary & scavenging
Aerial view of a mineral processing plant with conveyors, screening towers and stockpiles

Process intent

When gravity concentration makes sense

Specify jigs, spirals, centrifugal concentrators or tables when liberation and density contrast favour gravity recovery — as a primary circuit or scavenging stage within a modular train.

  1. 1Feed conditioning
  2. 2Primary gravity
  3. 3Scavenging / cleaning
  4. 4Concentrate handling
  5. 5Tailings / water circuit

Gravity equipment

Jigs, spirals, centrifugals and tables in modular packages

Equipment selection follows mineralogy, particle size distribution and recovery targets. Spirals form part of gravity concentration packages alongside jigs, centrifugals and tables as duty requires.

  • Jigs

    Jig modules for gravity separation where particle size, density contrast and duty support their use in primary or scavenging stages.

  • Spiral concentrators

    Spiral circuits for continuous gravity concentration — integrated into modular packages rather than treated as a separate product line. Suitable for many mineral recovery and scavenging applications.

  • Centrifugal concentrators

    Centrifugal gravity concentrators where recovery duty and concentrate grade requirements justify their use, often with upgrade stages.

  • Shaking tables

    Table-based upgrade and cleaning stages for concentrate finishing where fine control of product grade is required.

  • Feed preparation & classification

    Screening and classification ahead of gravity stages so feed size and slurry conditions match the selected concentration equipment.

  • Concentrate & tailings handling

    Practical concentrate upgrade, dewatering interfaces and tailings routes defined as part of the modular package boundaries.

Circuit roles

Primary concentration and scavenging

Modular gravity packages are positioned for the duty that adds the most value — not a one-size circuit. Primary stages maximise early recovery of free dense minerals; scavenging stages protect overall yield where values remain in tails or middlings.

Mineral processing plant with conveyors, stockpiles and screening equipment under open sky

  • Primary concentration

    First-pass gravity recovery where liberated dense minerals can be captured efficiently — often reducing the mass reporting to downstream processes.

  • Scavenging duties

    Secondary gravity stages that recover values remaining after primary concentration, flotation or other process steps — protecting overall recovery.

  • Upgrade and cleaning

    Concentrate cleaning with tables or additional gravity stages where product grade specifications demand finer control.

  • Integration with package plants

    Gravity modules that sit after crushing, wash or classification and ahead of dewatering or further recovery — with clear modular interfaces.

For gold-specific alluvial and hard-rock packages, see also modular gold recovery plants.

View all package plant types

Benefits of modular gravity circuits

Clearer scope, faster deployment, better duty fit

Modular gravity concentration packages are specified where projects need operable recovery circuits without the programme burden of fully stick-built plant of similar duty.

  • Faster circuit establishment

    Modular gravity packages reduce open-ended site construction so recovery capacity can be brought online within a clearer programme.

  • Defined package scope

    Clear boundaries for spirals, jigs, centrifugals and tables support more transparent commercial discussion than loosely specified equipment lists.

  • Scalable recovery stages

    Add primary or scavenging stages as metallurgy and throughput evolve — without abandoning a modular delivery model.

  • Duty-matched equipment

    Selection driven by mineralogy and particle size — not a single preferred machine type for every application.

Typical modular gravity packages

Packages are configured around duty. Exact equipment combinations depend on ore, water, power and recovery targets.

  • Spiral-focused packages

    Spiral banks with feed preparation and product handling for continuous gravity concentration duties.

  • Jig and centrifugal packages

    Jig and/or centrifugal concentrator arrangements where duty and feed characteristics support them.

  • Combined gravity trains

    Multi-stage gravity packages combining primary concentration with scavenging or table upgrade as required.

Gravity concentration enquiry

Ready to discuss a modular gravity package?

Share mineral type, particle size, primary vs scavenging duty, water and throughput. We will help scope a practical modular gravity circuit — including spirals, jigs, centrifugals or tables as duty requires.

Discuss gravity concentration requirements

· Heidelberg, Gauteng · South Africa

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