500 TPH Gold Mining Washing Plant Vendors Quotation

The Hidden Costs of Scaling Alluvial Gold Recovery

When your operation processes 500 tons per hour of goldbearing material, every minute of downtime costs approximately $2,500–$4,000 in lost production capacity. You face three persistent challenges: claybound gold losses that reduce recovery rates by 15–30%, frequent screen blinding that halts operations for cleaning, and water management inefficiencies that inflate your operating costs by $0.50–$1.20 per ton processed.

Can your current washing plant handle highclay content without sacrificing throughput? Are you losing fine gold particles in the overflow? Do your vendors provide verified performance data or just theoretical capacity claims?

The difference between a profitable 500 TPH operation and a marginal one often comes down to the washing plant's ability to disaggregate, classer, and recover gold across all particle size fractions.

Présentation du produit: 500 TPH Modular Gold Washing Plant

Cet équipement est un appareil robuste, multistage washing and recovery system designed for alluvial and eluvial gold deposits with clay content up to 40%. The plant integrates scrubbing, dépistage, and gravity concentration into a single, transportable module.

Flux de travail opérationnel:

1. Préparation des aliments – Runofmine material enters via vibrating grizzly feeder (100mm bar spacing) to remove oversize and direct fines to the scrubber
2. HighIntensity Scrubbing – Dualdrive rotary scrubber with 18mm manganese steel lifters breaks down clay agglomerates at 12–14 RPM
3. Trommel Classification – 2.4m diameter × 7.2m long trommel screen with 6mm, 12mm, and 25mm interchangeable panels separates three size fractions
4. Primary Recovery – Undersize (6mm) feeds a bank of 8 × 30inch centrifugal concentrators with automated concentrate discharge
5. Gestion des résidus – Oversize (+25mm) reports to stacking conveyor; middlings recirculate for secondary scrubbing

Champ d'application: Suitable for openpit alluvial mining, river terrace deposits, and weathered saprolite gold ores. Not recommended for hardrock primary gold ores requiring crushing and grinding circuits.

Fonctionnalités principales

DualDrive Rotary Scrubber | Base technique: Counterrotational shear forces | Avantage opérationnel: Reduces clay disaggregation time by 40% compared to singledrive systems | Impact sur le retour sur investissement: Eliminates need for chemical dispersants, saving $0.30–$0.60 per ton processed

VariableFrequency Trommel Drive | Base technique: 0–15 RPM speed control via VFD | Avantage opérationnel: Your operators can adjust retention time based on feed clay content without mechanical changes | Impact sur le retour sur investissement: Reduces screen wear by 25% and extends panel life to 2,000+ heures d'ouverture

Polyurethane Screen Panels with Tensioned Mounting | Base technique: 65 Shore A durometer polyurethane with 40% aire ouverte | Avantage opérationnel: Eliminates blinding in highclay conditions; panels snapin without tools | Impact sur le retour sur investissement: Temps de changement d'écran réduit de 8 heures pour 45 minutes; annual maintenance savings of $18,000–$25,000

Automated Concentrator Discharge System | Base technique: PLCcontrolled pneumatic valves with 15second discharge cycle | Avantage opérationnel: Continuous operation without manual intervention; concentrate collected every 2–4 hours | Impact sur le retour sur investissement: Labor reduction of 2 opérateurs par équipe; annual savings of $85,000–$120,000

Gestion de l'eau en boucle fermée | Base technique: 500m³ settling pond with polymer flocculant dosing | Avantage opérationnel: 85–90% water recycling rate; makeup water requirement of only 50–75 m³/hour | Impact sur le retour sur investissement: Reduces water consumption by 4,000 m³/jour; permits compliance in waterrestricted regions

Conception modulaire montée sur patins | Base technique: ISO container footprint modules (12m × 2.4m × 3m each) | Avantage opérationnel: Site assembly in 5–7 days with crane; relocation possible within 2 semaines | Impact sur le retour sur investissement: Site preparation costs reduced by 60% compared to concrete foundations

HeavyDuty Construction | Base technique: 10mm AR400 steel in wear zones; 8mm mild steel in structural areas | Avantage opérationnel: 15,000–20,000 operating hours before major overhaul | Impact sur le retour sur investissement: Total lifecycle cost 35% lower than standard carbon steel construction

Avantages compétitifs

| Mesure de performances | Norme de l'industrie (500 TPH) | Notre 500 Solution TPH | Avantage |
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| Clay handling capacity | 20–25% clay content | 40% teneur en argile | +60% |
| Gold recovery (75µm fraction) | 55–65% | 78–85% | +30% |
| Water consumption per ton | 0.8–1.2 m³/ton | 0.3–0.5 m³/ton | 55% |
| Screen panel replacement interval | 800–1,200 hours | 2,000+ heures | +67% |
| Setup time (first installation) | 14–21 days | 5–7 days | 65% |
| Power consumption per ton | 0.8–1.1 kWh/ton | 0.55–0.70 kWh/ton | 30% |
| Mean time between failures | 180–250 hours | 450–600 hours | +140% |

Spécifications techniques

| Paramètre | Spécification |
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| Capacité | 500 TPH nominal (550 TPH peak, base d'alimentation sèche) |
| Feed size | 0–100mm (oversize rejected by grizzly) |
| Scrubber dimensions | 3.0m diameter × 8.0m length |
| Scrubber drive | 2 × 75 kW electric motors with fluid couplings |
| Trommel dimensions | 2.4m diameter × 7.2m length |
| Trommel drive | 45 kW VFDcontrolled motor |
| Screen panel options | 4mm, 6mm, 8mm, 12mm, 20mm, 25mm |
| Concentrateurs | 8 × 30inch centrifugal (30 TPH chacun) |
| Puissance totale installée | 385 kW (including conveyors and pumps) |
| Water requirement | 350–500 m³/hour (recycled) |
| Poids opérationnel | 185 tonnes métriques (modules combined) |
| Transport dimensions | 4 × 40ft container modules + 2 flat racks |
| Température de fonctionnement | 10°C to 50°C (with coldweather package option) |
| Noise level | <85 dB(UN) à 1 mètre (operator position) |

Scénarios d'application

Opération alluviale ouest-africaine | Défi: 35% clay content caused 22% gold losses in trommel overflow; plant operated at 380 TPH actual vs 500 Conception TPH | Solution: Installed dualdrive scrubber with 14minute retention time and 6mm screen panels | Résultats: Throughput achieved 510 TPH; gold recovery increased from 68% à 84%; payback period of 4.2 months on $1.8M investment

Southeast Asian River Terrace Deposit | Défi: Fine gold (150µm) accounted for 40% of total gold; conventional jigs recovered only 52% | Solution: Added centrifugal concentrator bank with automated discharge; optimized water flow to 0.4 m³/tonne | Résultats: Fine gold recovery improved to 81%; annual gold production increased by 1,800 ounces; water permit compliance achieved

South American Weathered Saprolite | Défi: Variable feed grades (0.3–1.2 g/m³) required frequent process adjustments; manual concentrate cleaning caused 6hour weekly downtime | Solution: PLCcontrolled system with feed rate modulation and automated concentrate discharge | Résultats: Operator intervention reduced by 80%; la disponibilité des plantes est passée de 82% à 94%; concentrate grade improved from 45% à 62% gold content

Considérations commerciales

Niveaux de tarification des équipements (FOB port of export):

| Étage | Configuration | Gamme de prix | Délai de mise en œuvre |
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| Standard | Base plant with manual controls | $1.2M–$1.5M | 16–20 weeks |
| Amélioré | With VFD drives and PLC automation | $1.6M–$2.0M | 20–24 weeks |
| Prime | Full automation, surveillance à distance, coldweather package | $2.2M–$2.8M | 24–30 weeks |

Fonctionnalités facultatives:

• Integrated gold room with shaker table and mercuryfree recovery ($180,000–$250,000)
• Mobile genset package (500 kVA, diesel) – $95,000
• Kit de pièces de rechange (12month operation) – $85,000–$120,000
• Onsite commissioning and training (4 semaines) – $45,000–$65,000

Forfaits de services:

• Basique: 12mois de garantie, assistance technique à distance
• Standard: 24mois de garantie, 2 site visits per year, annual performance audit
• Complet: 36mois de garantie, quarterly site visits, operator training program, guaranteed recovery rates

Options de financement:

• 30% deposit, 40% on shipment, 30% on commissioning
• Equipment leasetoown: 36–60 month terms at 6–9% APR (sous réserve d'approbation de crédit)
• Performancebased payment: 20% upfront, balance paid over 12 months tied to gold recovery guarantees

Foire aux questions

Q: Can this plant handle material with clay content exceeding 40%?
UN: Field data shows effective operation up to 45% clay with reduced throughput (approximately 420–450 TPH). For clay content above 45%, we recommend a prewetting conveyor or additional scrubber stage. We provide free material testing to confirm suitability.

Q: What is the expected gold recovery rate for fine particles (75 microns)?
UN: Independent testing at our facility and client sites shows 78–85% recovery for 75µm gold particles when using the centrifugal concentrator bank. Recovery drops to 65–72% for 45µm material. For sub45µm gold, we recommend adding a Knelson or Falcon concentrator in series.

Q: How does the quotation process work for a 500 Usine TPH?
UN: We require: (1) representative 500kg feed sample for washability testing, (2) site water analysis, (3) power availability details, (4) target production schedule. Testing takes 3–4 weeks. A firm quotation with performance guarantees is provided within 2 weeks of test results.

Q: What is the typical installation timeline from order to production?
UN: Manufacturing takes 16–30 weeks depending on configuration. Site preparation (level pad, water management system) requires 3–4 weeks concurrent with manufacturing. Installation and commissioning takes 5–7 days for the plant, plus 2–4 weeks for full system integration and operator training.

Q: Can the plant be expanded to 750 TPH in the future?
UN: Oui. The modular design allows adding a second scrubber module and additional concentrators. Expansion cost is approximately 40–50% of the original plant cost. We provide expansionready designs at no additional charge during initial quotation.

Q: What warranty and performance guarantees are offered?
UN: Standard warranty covers manufacturing defects for 12 months or 6,000 heures d'ouverture. Performance guarantees include: minimum throughput of 450 TPH (90% de capacité nominale), gold recovery of 75% for 150µm material, and water consumption below 0.6 m³/tonne. Guarantees are verified during 72hour performance test.

Q: How do you handle spare parts availability for remote mining sites?
UN: We maintain regional warehouses in West Africa, Asie du Sud-Est, and South America with 95% fill rates for critical spares. Standard lead time for stocked parts is 5–7 business days. We provide a recommended spares list for 12month operation with your quotation.