1. PAINPOINT DRIVEN OPENING

Are you facing persistent bottlenecks in your gold recovery circuit that directly impact your bottom line? For plant managers and engineering contractors, the challenges of fine gold recovery are often quantified in measurable losses: inefficient capture of sub100micron particles leading to tailings grade slippage, excessive downtime for concentrate cleanup and equipment maintenance, and high operational costs from water consumption and reagent use. These issues translate to a direct erosion of profit margins. How do you increase recovery rates without a proportional increase in energy or labor costs? Can you improve the security and efficiency of your final concentrate handling? Is your current setup adaptable to fluctuating feed grades and ore types? Addressing these operational challenges requires a targeted approach to gravity concentration and final recovery.

2. PRODUCT OVERVIEW

This product line encompasses engineered centrifugal concentrators for the highvolume recovery of free gold, particularly fine gold, from alluvial and hard rock processing plants. As a critical component in modern gravity circuits, this equipment is designed for continuousduty operation in rough industrial environments.

Operational Workflow:
1. Feed Introduction: Slurry, typically screened to 2mm or 6mm, is introduced under controlled pressure.
2. Centrifugal Concentration: The slurry enters a rapidly spinning drum, where enhanced gravitational forces (typically 50200 G's) separate highdensity gold particles from lighter gangue material.
3. Continuous Concentration: Gold and heavy minerals are trapped behind engineered riffles or grooves, while tailings are fluidized and discharged continuously.
4. Automated Concentrate Removal: At programmed intervals, the system halts rotation and flushes the concentrated heavies into a secure collection vessel, minimizing manual handling.
5. Cycle Resumption: The process restarts automatically, ensuring nearcontinuous operation with brief purge cycles.

Application Scope & Limitations:
Scope: Ideal for primary gravity recovery in alluvial operations, as a scavenger unit after grinding mills in hard rock plants, or for upgrading existing concentrate. Effective on free gold particles from several millimeters down to ~10 microns.
Limitations: Not effective for chemically bound (refractory) gold or ultrafine particles without preclassification. Performance is dependent on proper feed preparation (sizing/desliming) and consistent slurry density control.

3. CORE FEATURES

Variable GForce Control | Technical Basis: Variable frequency drive (VFD) on main drive motor | Operational Benefit: Operators can finetune centrifugal force in realtime to match specific ore characteristics and particle size distribution for optimal recovery | ROI Impact: Maximizes yield across varying feed stocks; field data shows a 515% increase in fine gold capture compared to fixedspeed units.

Automated SelfCleaning Cycle | Technical Basis: Programmable logic controller (PLC) with timed or sensoractivated purge sequence | Operational Benefit: Eliminates manual bowl cleaning, reduces operator exposure to concentrate, and maintains consistent process efficiency | ROI Impact: Cuts labor requirements for cleanup by up to 75% and increases actual processing time by reducing downtime.

Corrosion & AbrasionResistant Wear Surfaces | Technical Basis: Highchrome alloy or polyurethane liners on all wetted parts in contact with slurry | Operational Benefit: Dramatically extends service life in abrasive environments, maintaining peak separation efficiency over longer periods | ROI Impact: Reduces spare parts inventory costs and unplanned maintenance shutdowns; liner life increased by 200300% over mild steel components.

Low Water Consumption Design | Technical Basis: Optimized fluidization water ports and internal slurry dynamics | Operational Benefit: Operates efficiently with minimal added water pressure (typically 1020 PSI), reducing overall plant water demand | ROI Impact: Lowers pumping costs and is critical for operations in waterscarce regions; can reduce auxiliary water use by up to 30%.

Modular & Scalable Design | Technical Basis: Standardized connection points and feed/distribution manifolds | Operational Benefit: Allows for easy integration into existing plants or parallel stacking of multiple units to increase capacity without major circuit redesign | ROI Impact: Provides flexible capex planning; capacity can be increased incrementally as mine plans evolve.

Secure Concentrate Handling System | Technical Basis: Integrated lockable discharge chute directing concentrate into sealed containers | Operational Benefit: Enhances security by minimizing transfer points and providing auditable collection from machine to safe room | ROI Impact: Mitigates loss risk at a critical stage of material handling.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard (Basic Centrifugal Concentrator) | This Gold Recovery Centrifugal Concentrator Solution | Advantage (% Improvement) |
| : | : | : | : |
| Fine Gold Recovery Rate (<74µm) | ~8590% under ideal conditions| Consistently achieves 9297% in field applications| +5% to +8% recovery improvement |
| Average Cleanout Downtime per Cycle| 1525 minutes (manual process)| 150% increase in service life |
| Water Consumption per Tonne Processed| ~1.0 1.5 m³/tonne| ~0.7 1.0 m³/tonne| Up to 30% reduction in water use |
| Operational Flexibility (Feed Grade Variance)| Requires manual adjustment; sensitive to changes| VFD control allows rapid adaptation to changing feed conditions| Maintains efficiency across a wider range of input grades |

5. TECHNICAL SPECIFICATIONS

Model Capacity Range: Treats feed rates from 10 tonnes per hour up to 50 tonnes per hour per unit.
Power Requirements: Main Drive Motor: 7.5 kW 15 kW (10 HP 20 HP), dependent on model; Control System: 110/220VAC single phase.
Material Specifications: Primary structure: Carbon steel with corrosionresistant coating; Critical wear surfaces: Replaceable highchrome white iron or premium polyurethane; Fluidization pipes: Stainless steel.
Physical Dimensions (Typical Unit): Operating footprint approx.: Length =2m x Width=1m x Height=1m; Weight approx.: ~800 kg dry weight.
Environmental Operating Range: Ambient Temperature Range 20°C / +45°C (4°F / +113°F); Designed for outdoor installation with optional weatherproof housing; Maximum operating altitude up to3，000 meters above sea level.

6. APPLICATION SCENARIOS

Alluvial Placer Operation – Southeast Asia

Challenge A largescale dredging operation was experiencing significant fine gold losses (<100 mesh)to tailings ponds，with inconsistent performance from older gravity equipment leadingto an estimated annual revenue loss.
Solution Implementation of two parallel centrifugal concentrators as primary roughers，fed by classified slurry from trommel screens.The automated cleaning cycle was synchronized with shift changes.
Results Plant throughput remained unchanged，but overall site recovery increased by6%.The secure，automated concentrate discharge streamlined security protocols.The reduced water demand allowed operationto continue through seasonal dry periods without additional pumping infrastructure.

Hard Rock Mine – North America

Challenge A milling circuit’s existing gravity trap system was laborintensiveand captured less than50%of liberated gold postgrinding，placing excessive loadon the downstream leach circuit。
Solution Installationofa centrifugal concentrator asa scavenger uniton the combined cyclone underflow。Unit was configuredfor highG force operationto target ultrafinegold。
Results The unit consistently recovered7080%of remaining freegold，producinga highgrade concen tratefor direct smelting。This reducedthe volumeof material reportingtothe leach tanks，lowering cyanide consumptionby18%and shortening overall retention time。Payback period was calculatedat under14 months。

7.COMMERCIAL CONSIDERATIONS

Equipment pricing is tiered basedon processing capacity（feed rate），material specifications（standard vs.premium wear package），and levelof automation（basic timer vs.full PLC control）。

Optional features include remote monitoring capability via SCADA interface，secondary security enclosure，spare parts kits（recommended），and custom manifold designsfor specific plant layouts。

Service packages are available rangingfrom basic commissioning supporttocomprehensive annual maintenance agreements that include scheduled inspections，wear part replacement discounts，and priority technical support。

Financing options can be structured through partner providers including equipment leasing programs tailoredfor mining projectsor milestonebased payment plans alignedwith project development stages。

8.FAQ

Q What prescreening is required before feeding materialtoyour centrifugal concentrator？
A For optimal performance，feed should be screenedto remove oversize material（typically 2mmor 6mm dependingon model）。Desliming below75or53 micronsis also highly recommended as excess clayscan hinder separation efficiency。

Q How does this equipment integrate with our existing shaking tableor jig circuit？
A It servesasan excellent primary rougheror scavenger unit。It can treatthe higher volume bulk feed aheadofa shaking table which then actsasa precise cleaner concentrator significantly increasing overall circuit capacity andrecovery。

Q What isthe typical power consumption during operation？
A Power draw is primarily drivenby themain drive motor。For examplea midrange model operates ona15kW motor。The automated systems add minimal draw resultingin an efficient costpertonne processed figure comparedto other separation methods。

Q Are wear parts readily available globally？
A Yes critical wear components suchas bowls liners fluidization jetsare standardizedand stockedin regional warehouse locationsin key mining territories ensuring reduced lead timesfor delivery。

Q What training is providedfor our operations team？
A Comprehensive onsite trainingis includedwith commissioning covering safe operation routine maintenance troubleshooting proceduresand concentrate handling protocols Documentationis providedin multiple formats。

Q Can wetestthe equipmenton our specific ore sample？
A Yes we offer batch testing servicesat our facility using customerprovided samples Detailed analysis reports including projected recovery rates andrecommended configurationsare provided

Q What arethe standard commercial termsand delivery lead times？
A Standard terms are FOB manufacturing facility Payment structure typically involvesa deposit upon order balance before shipment Current lead times range from8–12 weeks dependingon model configurationand order volume