1. PAINPOINT DRIVEN OPENING

Managing a gold processing operation requires balancing throughput, recovery rates, and operational costs. Common challenges with gravity concentration and final recovery stages directly impact your bottom line. Are you experiencing:
Inconsistent Fine Gold Recovery: Are you losing sub50micron gold particles to tailings due to inefficient concentration, directly reducing your overall yield?
High Operational Downtime: Does your current recovery equipment require frequent maintenance cycles, interrupting your processing flow and costing valuable production hours?
Excessive Water and Power Consumption: Are your separation systems inefficient, leading to spiraling utility costs and complex water management issues?
LaborIntensive Concentrate Cleanup: Does your process require manual panning or repeated reprocessing of concentrates, increasing labor costs and creating security concerns?
Difficulty in Deploying Mobile or Modular Plants: Is your existing recovery equipment too bulky or powerhungry for efficient use in remote or smallerscale operations?

Effective gold mining equipment must address these specific inefficiencies to protect your most valuable asset.

2. PRODUCT OVERVIEW: CE Marked Centrifugal Gold Concentrators

This product line comprises a range of CE Marked centrifugal gold concentrators designed for the highvolume recovery of free gold, particularly fine gold, from slurry. These units are engineered as a core component in gravity recovery circuits (GRR) within both fixedplant and modular mining operations.

Operational Workflow:
1. Feed Introduction: Ore slurry is continuously fed into the rotating cone of the concentrator.
2. Centrifugal Separation: High Gforces fluidize the material bed, forcing highdensity gold particles to migrate and become trapped behind the riffles.
3. Continuous Concentration: While gangue material is flushed over the riffles and exits as tailings, gold accumulates within the concentrate bowl.
4. Automated Concentrate Discharge: At programmed intervals, the cone decelerates, and an internal rinse cycle discharges the enriched concentrate for further upgrading or direct smelting.

Application Scope & Limitations:
Scope: Ideal for recovering freemilling gold >30 microns in size from alluvial/eluvial deposits or within hard rock milling circuits (as a concentrator after crushing/grinding). Effective in both primary recovery and scavenger applications.
Limitations: Not effective for chemically bound (refractory) gold or ultrafine (<10 micron) particles without preclassification. Requires a consistent feed density and particle size distribution for optimal performance.

3. CORE FEATURES

Variable Speed Drive | Technical Basis: Precisioncontrolled centrifugal force | Operational Benefit: Operators can finetune Gforce from 0200G to match specific ore characteristics, maximizing recovery across varying feed grades. | ROI Impact: Field data shows a 515% increase in overall fine gold recovery compared to fixedspeed units, protecting revenue.

Automated Discharge Cycle | Technical Basis: Programmable logic controller (PLC) with timer/counter functions | Operational Benefit: Eliminates manual shutdowns for bowl cleaning; allows continuous operation for up to 12 hours depending on feed grade. | ROI Impact: Reduces labor requirements by approximately 2 operatorhours per shift and increases plant uptime.

Polyurethane Concave & Riffles | Technical Basis: Abrasionresistant elastomer molding | Operational Benefit: Provides exceptional wear life in highsilica environments compared to rubber or steel liners. | ROI Impact: Cuts replacement part costs by up to 40% annually and reduces maintenance downtime frequency.

Low Water Consumption Design | Technical Basis: Optimized internal fluidization channels | Operational Benefit: Operates efficiently with 3050% less process water than older conetype concentrators. | ROI Impact: Lowers water pumping and recycling costs significantly, crucial for arid regions or sites with water licensing constraints.

CE Certified Safety & Construction | Technical Basis: Compliance with EU Machinery Directive (2006/42/EC) standards | Operational Benefit: Integrated safety guards, emergency stop systems, and certified electrical components ensure operator safety and meet international site audit requirements. | ROI Impact: Mitigates risk of costly worksite incidents and facilitates equipment approval for global projects.

Modular SkidMounted Design | Technical Basis: Preassembled structural steel baseframe with integrated piping | Operational Benefit: Enables rapid deployment; reduces plant installation time from weeks to days with simple power and feed connections. | ROI Impact: Accelerates timetoproduction by an estimated 25% for new site commissioning.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard (Legacy Concentrators) | Our CE Marked Centrifugal Concentrator Solution | Advantage (% Improvement) |
|||||
| Fine Gold Recovery (<75µ) | Estimated 6575% | Consistent 8892% in controlled tests | +20% |
| Average Wear Life (Liners) | 800 1,200 operating hours | 1,800 2,200 operating hours | +70% |
| Process Water Requirement | ~15 m³/hr per unit | ~9 m³/hr per unit | 40% |
| Time Between Discharge | Manual cleaning every 24 hours | Automated cycle allows up to 12hour continuous run | +300% operational uptime |
| Installation ManHours | ~80 hours | ~24 hours (skidmounted) |70% |

5. TECHNICAL SPECIFICATIONS

Model Range & Capacity: Available in three sizes with slurry processing capacities from 15 tonnes per hour (TPH) up to 80 TPH.
Power Requirements: Electric motor driven; models require between 5.5 kW and 18.5 kW at standard industrial voltages (400V/50Hz or customizable).
Material Specifications: Primary wear surfaces are cast polyurethane; structural frame is powdercoated carbon steel; fluid contact pipes are stainless steel.
Physical Dimensions (Largest Model): Skid footprint of approximately 3m x 2m; total height of 1 .8m; shipping weight approx 2 ,800 kg.
Environmental Operating Range: Designed for ambient temperatures from 20°C to +50°C; humidity resistant electrical enclosures rated to IP65.

6. APPLICATION SCENARIOS

Alluvial Placer Operation – West Africa

Challenge A largescale placer mine was losing significant fine gold through their sluicebased system due to fluctuating feed grades and poor fine particle retention.
Solution Installation of two parallel centrifugal concentrators as primary roughers after trommel scrubbing.
Results Achieved a consistent overall recovery rate above 92%, capturing an estimated additional 15 grams of fine gold per tonne of processed material compared to the old system.

Hard Rock Mill Scavenger Duty – Canada

Challenge A quartz vein mill’s shaking tables were overloaded by increased throughput targets causing losses into final tails.
Solution A single highcapacity centrifugal concentrator was installed on the combined table tailings stream as a scavenger unit.
Results Recovers an average of 8 kg of additional gold concentrate per week that was previously lost reducing final tail grade by over 30%.

Modular / Mobile Processing Plant

Challenge An engineering contractor required compact reliable gravity recovery units that could be quickly deployed across multiple shortlife sites with minimal setup complexity
Solution Integration of skidmounted centrifugal concentrators into their modular plant design requiring only connection points
Results Reduced plant commissioning time at new sites by three days per unit allowing faster project cash flow

7 COMMERCIAL CONSIDERATIONS

Equipment pricing is tiered based on capacity model with standard packages including basic commissioning documentation Optional features include advanced PLC control panels remote monitoring sensors washwater pumps

Service packages are available ranging from annual preventative maintenance inspections including wear part assessment to comprehensive multiyear site support agreements Financing options through partner institutions can include leasetoown structures or projectbased financing tailored for mining developments

8 FAQ

Q What feed preparation is required before a centrifugal concentrator
A For optimal performance feed should be screened below mm have a consistent solids density between solids Classification via hydrocyclone is recommended

Q How does this equipment integrate with existing cyanidation CIP CIL circuits
A It serves as an efficient preconcentration device removing free gravityrecoverable gold prior leaching reducing load capacity requirements shortening leach residence times

Q What is the typical payback period on this investment
A Based on field data operations adding incremental fine gold recovery typically achieve full capital payback within months depending on feed grade throughput

Q Are spare parts readily available globally
A Yes we maintain certified regional warehouse inventories ensuring critical wear parts like polyurethane bowls are available within business days major markets

Q Does CE certification mean it meets all global mining standards
A CE marking confirms compliance with stringent European health safety environmental directives It is widely recognized acceptance international projects often exceeding local requirements many regions