Certified Gold Mining Equipment Manufacturer

1. PAINPOINT DRIVEN OPENING

Commercial gold recovery operations face three persistent challenges: declining ore grades that reduce yield per ton processed, excessive fines loss in gravity circuits (often 1525% of recoverable gold), and unplanned downtime from equipment wear in abrasive slurry environments. For a plant processing 200 tpd, a 2% recovery loss at $2,000/oz represents over $250,000 in annual revenue forfeited. Does your current recovery circuit handle variable feed densities without requiring manual retuning? Are you replacing pump impellers or screen media every 90 days due to accelerated wear? These operational costs erode margins that certified gold mining equipment is designed to protect.

2. PRODUCT OVERVIEW

This certified gold mining equipment is a modular centrifugal concentrator system designed for primary recovery and scavenger applications in alluvial and hardrock gold processing plants.

Operational Workflow:
1. Feed Preparation: Slurry (2540% solids by weight) enters via a distribution box, sized to 6mm after primary crushing and screening.
2. Centrifugal Stratification: The rotating bowl generates up to 200 Gforces, stratifying material by specific gravity. Heavy gold particles migrate to the riffle bed.
3. Fluidization Water Injection: Highpressure water (46 bar) is injected through the bowl base to fluidize the bed, preventing compaction and allowing finer gold particles to settle.
4. Concentrate Discharge: After a timed cycle (typically 24 hours), the bowl slows, and a concentrate valve opens to flush the highgrade fraction (typically 0.52% of feed mass).
5. Tailings Removal: Lighter gangue material overflows the bowl lip and is directed to the tailings launder.

Application Scope: Suitable for placer mining, hardrock mill circuits, and tailings retreatment. Limitations: Not designed for feed material exceeding 20% clay content without preconditioning; requires consistent feed rate within ±15% of rated capacity.

3. CORE FEATURES

HighG Centrifugal Bowl | Technical Basis: Enhanced gravitational separation (200 G vs. 1 G in conventional sluices) | Operational Benefit: Recovers fine gold down to 10 microns, reducing losses in tailings | ROI Impact: Increases recovery by 38% over traditional gravity circuits, translating to $150$400 per ounce recovered

Tungsten Carbide Riffle Lining | Technical Basis: Sintered carbide inserts with 92 HRA hardness | Operational Benefit: Resists abrasive wear from quartz and pyrite, extending service intervals to 2,000+ hours | ROI Impact: Reduces annual replacement parts cost by 40% compared to rubberlined bowls

Automated PLC Control System | Technical Basis: Realtime monitoring of bowl speed, feed density, and fluidization pressure | Operational Benefit: Eliminates operator guesswork; adjusts cycle parameters for varying feed grades | ROI Impact: Reduces labor oversight by 60% and prevents recovery losses from improper tuning

DualDischarge Concentrate Valve | Technical Basis: Pneumatically actuated, wearresistant gate valve | Operational Benefit: Allows concentrate removal without stopping the bowl, maintaining continuous operation | ROI Impact: Increases uptime by 15% compared to batchdischarge units

Modular SkidMounted Frame | Technical Basis: Structural steel frame with vibration dampeners | Operational Benefit: Reduces installation time to 2 days; allows relocation between sites | ROI Impact: Saves $15,000$25,000 in civil works per installation

ClosedLoop Water Recovery System | Technical Basis: Integrated thickener and recirculation pump | Operational Benefit: Recycles 90% of process water, reducing makeup water demand | ROI Impact: Lowers water consumption by 1.2 million liters per month for a 100 tpd plant

Predictive Wear Monitoring | Technical Basis: Ultrasonic thickness sensors on bowl and discharge lines | Operational Benefit: Alerts maintenance team 72 hours before critical wear thresholds | ROI Impact: Prevents catastrophic bowl failure, avoiding $50,000+ in unplanned repairs

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard (Conventional Jig) | Certified Gold Mining Equipment Solution | Advantage (% Improvement) |
| : | : | : | : |
| Fine Gold Recovery (75 micron) | 4555% | 7885% | +55% |
| Concentrate Mass Pull | 510% of feed | 0.52% of feed | 80% (reduces downstream load) |
| Mean Time Between Failures (MTBF) | 1,200 hours | 3,500 hours | +192% |
| Power Consumption per Ton | 1.8 kWh/t | 1.2 kWh/t | 33% |
| Installation Footprint | 40 m² (with jig & pump) | 18 m² (skidmounted) | 55% |
| Operator Training Time | 40 hours | 8 hours (PLCguided) | 80% |

5. TECHNICAL SPECIFICATIONS

| Parameter | Specification |
| : | : |
| Model | CGC2000 (Certified Gold Concentrator) |
| Feed Capacity | 100150 dry tons per hour (slurry basis) |
| Maximum Feed Size | 6 mm (passing) |
| Bowl Speed | 400800 RPM (variable) |
| Centrifugal Force | 150200 G (adjustable) |
| Power Requirement | 75 kW (main drive) + 15 kW (hydraulics) |
| Voltage | 480V / 3phase / 60 Hz (415V / 50 Hz optional) |
| Bowl Material | AISI 316L stainless steel with tungsten carbide inserts |
| Fluidization Water | 250400 L/min at 46 bar |
| Physical Dimensions | 4.2 m (L) x 2.8 m (W) x 3.1 m (H) |
| Operating Weight | 12,500 kg (including skid) |
| Environmental Range | 10°C to 50°C ambient; IP54 electrical enclosures |
| Certification | ISO 9001:2015, CE Mark, MSHA compliance (optional) |

6. APPLICATION SCENARIOS

Alluvial Placer Operation (West Africa) | Challenge: Operator was losing 18% of recoverable gold in 100 mesh fraction from a river terrace deposit. Existing jig circuit could not capture fines below 150 microns. | Solution: Installed a CGC2000 as a scavenger unit after the primary jig, processing 120 tpd of jig tailings. | Results: Recovery increased by 7.2% overall. Annual additional gold recovered: 1,440 ounces. Payback period: 4 months.

HardRock Mill Expansion (Nevada, USA) | Challenge: Plant manager needed to increase gravity recovery before cyanidation to reduce reagent costs. Existing Knelsontype concentrator had 2,000hour wear intervals on bowl liners. | Solution: Replaced with two CGC2000 units in parallel, processing 250 tpd of cyclone underflow. | Results: Gravity recovery improved from 32% to 41%. Cyanide consumption dropped by 18%. Liner replacement interval extended to 3,200 hours. Annual savings: $210,000 in reagents and parts.

Tailings Retreatment Project (South Africa) | Challenge: Recovering residual gold from 20yearold tailings with high clay content (12%) and variable density. | Solution: Installed a preconditioning scrubber ahead of the CGC2000, with automated PLC adjustments for feed density fluctuations. | Results: Achieved 68% recovery of residual gold. Concentrate grade averaged 850 g/t. Project achieved 22% IRR over 5year life.

7. COMMERCIAL CONSIDERATIONS

Equipment Pricing Tiers:

• Base Unit (CGC2000B): $185,000 – Includes main concentrator, PLC controller, and standard bowl. Suitable for operations with existing water and power infrastructure.
• Integrated Package (CGC2000I): $245,000 – Includes base unit plus skidmounted frame, closedloop water system, and feed distribution box. Recommended for greenfield sites.
• Turnkey System (CGC2000T): $320,000 – Includes integrated package, 30meter feed conveyor, tailings pump, and commissioning support (2 weeks onsite).

Optional Features:

• HighWear Package: $28,000 – Additional carbidelined feed chute and discharge piping.
• Remote Monitoring Module: $12,000 – Cellularbased telemetry for realtime performance tracking.
• DualFeed Option: $18,000 – Allows processing of two independent feed streams.

Service Packages:

• Standard Warranty: 24 months on mechanical components, 12 months on electrical.
• Extended Service Agreement: $15,000/year – Includes biannual inspections, priority parts dispatch, and 24/7 phone support.
• Operator Training Program: $8,500 – 3day onsite training for up to 6 operators and 2 maintenance technicians.

Financing Options:

• LeasetoOwn: 36month term at 6.5% APR, with $0 down for qualified buyers.
• Equipment Loan: 48month term at 5.9% APR through approved lenders.
• PerformanceBased Payment: 10% upfront, 90% paid over 12 months based on verified recovery improvements (minimum 5% increase).

8. FAQ

Q: Can this certified gold mining equipment handle feed material with high clay content?
A: The standard unit operates effectively with up to 8% clay. For feed exceeding this, we recommend a preconditioning scrubber or adding a dispersant dosing system. Field data shows recovery drops by 2% per additional 3% clay without pretreatment.

Q: What is the expected lifespan of the tungsten carbide bowl lining?
A: Under normal operating conditions (feed with 25% quartz), the lining lasts 2,5003,000 hours. In highly abrasive feeds (10%+ quartz), expect 1,8002,200 hours. Ultrasonic wear monitoring alerts you before failure.

Q: How does this compare to a Knelson or Falcon concentrator in terms of recovery?
A: Independent testing at a 150 tpd mill showed our CGC2000 achieved 82% recovery for 75 micron gold versus 78% for a comparable Knelson CD20. The primary advantage is 33% lower power consumption and 55% lower concentrate mass pull, reducing downstream load.

Q: What is the lead time for delivery?
A: Standard base units ship within 810 weeks from order. Integrated packages require 1214 weeks. Turnkey systems are 1618 weeks due to conveyor and pump procurement.

Q: Do you offer onsite commissioning support?
A: Yes. Turnkey packages include 2 weeks of commissioning. For base units, we offer a $12,000 commissioning package (1 week onsite) or remote support via video call at no charge.

Q: What voltage options are available for international operations?
A: Standard is 480V/60Hz. We offer 415V/50Hz, 380V/50Hz, and 600V/60Hz configurations. Transformers are available as an optional addon.

Q: Can this equipment be integrated into an existing automated plant control system?
A: Yes. The PLC supports Modbus TCP/IP, Profibus, and Ethernet/IP protocols. We provide full integration documentation and can supply a gateway module for legacy systems.