500 Tph Gold Mining Washing Plant Oem Factory Minimum Order
500 TPH Gold Mining Washing Plant OEM Factory Minimum Order
The Cost of Inefficient Gold Recovery at Scale
Your 500 TPH operation faces three critical challenges that directly impact your bottom line. First, conventional washing plants lose 812% of recoverable gold in fines below 75 microns, representing $2.7M$4.1M in annual losses at current gold prices for a plant running 8,000 hours per year. Second, unplanned downtime from clogged screens and worn slurry pumps costs your operation $12,000$18,000 per hour in lost production. Third, inconsistent feed material—from highclay laterites to weathered conglomerates—forces your team to constantly adjust wash water pressure and screen angles, reducing throughput by 1525% during material transitions.
Can your current washing plant handle 500 TPH of variable feed without sacrificing recovery rates? Are you spending more on maintenance than the equipment is worth? The answer lies in engineered solutions designed for continuous, highvolume gold recovery.
Product Overview: The 500 TPH Gold Washing Plant
This is a modular, skidmounted rotary trommel washing system engineered for alluvial and weathered hardrock gold deposits. The plant integrates three core processes: highpressure washing, screening, and slurry concentration.
Operational Workflow:
1. Feed Hopper & Grizzly: Runofmine material (up to 600mm) is fed via dump truck or conveyor into a vibrating grizzly feeder with 150mm bar spacing. Oversize (+150mm) is rejected; undersize enters the trommel.
2. Rotary Trommel Washing: A 2.4m diameter x 8.0m long trommel rotates at 812 RPM. Internal lifters and highpressure water jets (1215 bar) break down clay agglomerates and wash goldbearing fines through 6mm screen panels.
3. Concentration Circuit: Trommel undersize (6mm) flows to a multistage jigging and sluicing system. Primary jigs recover coarse gold (+300 microns); secondary spirals and centrifugal concentrators capture fine gold (50300 microns).
4. Tailings Management: Washed oversize (+6mm) is conveyed to a stockpile or backfill area. Slurry from concentration passes through a hydrocyclone for water recovery (8590% recycle rate).
Application Scope: Alluvial gold deposits, weathered saprolite, and oxidized ores with clay content up to 40%. Not suitable for primary hardrock ores requiring crushing and grinding circuits.
Core Features
HighCapacity Trommel with Replaceable Screen Panels
Technical Basis: Modular polyurethane screen panels with 6mm apertures, arranged in a staggered pattern to reduce blinding.
Operational Benefit: Your operators can replace worn panels in 2 hours versus 8 hours for welded steel screens, reducing downtime by 75%.
ROI Impact: Annual maintenance savings of $45,000$60,000 based on 4 panel replacements per year.
DualStage Jigging System with Automatic Discharge
Technical Basis: Two parallel 4cell jigs with 3.0m² bed area each, using adjustable stroke frequency (60120 RPM) and water pulsation.
Operational Benefit: Recovers gold down to 50 microns with 9295% efficiency, verified by independent lab testing on 15 different ore types.
ROI Impact: Additional 35% gold recovery versus singlestage jigs, worth $900,000$1.5M annually at 500 TPH.
Variable Frequency Drive (VFD) on Trommel and Pumps
Technical Basis: 200 kW VFDcontrolled motor for trommel rotation; 75 kW VFD for main slurry pump.
Operational Benefit: Your plant manager can adjust trommel speed from 614 RPM and pump flow from 80120% rated capacity to match feed conditions.
ROI Impact: 1822% reduction in power consumption during lowfeed periods, saving $35,000$50,000 per year in electricity costs.
Integrated Water Management System
Technical Basis: Closedloop system with 500 m³/hr capacity, including settling pond, thickener, and 200micron screen filters.
Operational Benefit: Reduces fresh water consumption by 8590%, critical for operations in waterscarce regions.
ROI Impact: Avoids $200,000$400,000 in annual water extraction and treatment costs.
HeavyDuty Structural Frame with Corrosion Protection
Technical Basis: ASTM A36 steel frame with 3mm epoxy coating and stainless steel (304 grade) for all wetted components.
Operational Benefit: Service life of 1215 years in tropical or arid environments, versus 68 years for standard painted steel.
ROI Impact: Reduced capital replacement cycle, saving $1.2M$1.8M over a 15year plant life.
Automated Lubrication and Monitoring System
Technical Basis: Centralized grease distribution to 32 bearing points, with vibration and temperature sensors on all rotating equipment.
Operational Benefit: Your maintenance team receives realtime alerts for bearing wear or misalignment, preventing catastrophic failures.
ROI Impact: 4050% reduction in unplanned downtime, translating to 200400 additional operating hours per year.
Modular Skid Design for Rapid Deployment
Technical Basis: 12 skids, each measuring 12m x 3m x 3.5m, with prewired electrical panels and prepiped hydraulic connections.
Operational Benefit: Site assembly in 1418 days versus 3045 days for conventional plants, reducing project timeline by 50%.
ROI Impact: Faster revenue generation—$1.5M$2.5M in additional gold production during the installation period.
Competitive Advantages
| Performance Metric | Industry Standard (500 TPH) | Our 500 TPH Solution | Advantage |
|||||
| Gold recovery rate (coarse +300µ) | 8590% | 9396% | +68% improvement |
| Gold recovery rate (fine 50300µ) | 6070% | 7885% | +1518% improvement |
| Water consumption (m³/ton ore) | 1.21.8 | 0.60.9 | 4050% reduction |
| Screen panel replacement time (hours) | 812 | 23 | 75% faster |
| Mean time between failures (MTBF, hours) | 450600 | 1,2001,500 | 100150% increase |
| Power consumption (kWh/ton) | 2.53.5 | 1.82.2 | 2837% reduction |
| Installation time (days) | 3045 | 1418 | 5060% faster |
| Annual maintenance cost ($/ton processed) | $0.120.18 | $0.070.10 | 3545% lower |
Technical Specifications
| Parameter | Specification |
|||
| Capacity | 500 TPH (nominal), 550 TPH (peak) at 90% availability |
| Feed size | 0600mm (grizzly oversize rejected) |
| Trommel dimensions | 2.4m diameter x 8.0m length |
| Trommel speed | 614 RPM (VFD controlled) |
| Screen aperture | 6mm (standard); 4mm or 8mm optional |
| Wash water pressure | 1215 bar at 400 m³/hr |
| Jigging system | 2 x 4cell jigs, 3.0m² bed area each |
| Concentrator capacity | 150 TPH slurry (1015% solids) |
| Power requirement | 450550 kW (total installed) |
| Voltage | 415V, 50Hz (standard); 480V, 60Hz optional |
| Water consumption | 400500 m³/hr (fresh); 8590% recycle rate |
| Material specifications | ASTM A36 frame, 304 SS wetted parts, polyurethane screens |
| Dimensions (assembled) | 45m L x 18m W x 12m H |
| Skid dimensions (each) | 12m L x 3m W x 3.5m H |
| Total weight | 180220 metric tons (depending on configuration) |
| Operating temperature | 10°C to 50°C |
| Humidity range | 095% noncondensing |
| Minimum order quantity | 1 unit (OEM factory direct) |
Application Scenarios
Alluvial Gold Mine in West Africa
Challenge: A 500 TPH operation in Ghana faced 35% clay content in feed, causing screen blinding every 4 hours and reducing throughput to 380 TPH. Gold recovery dropped to 72% due to fines loss.
Solution: Installed our 500 TPH plant with highpressure wash system (15 bar) and dualstage jigs. Added a clay dispersant dosing system (50 ppm) to improve fines liberation.
Results: Throughput stabilized at 500 TPH with 94% availability. Gold recovery increased to 91%. Annual production rose from 18,000 oz to 24,500 oz, generating $9.8M additional revenue at $1,800/oz.
Weathered Saprolite Operation in South America
Challenge: A Brazilian miner processed saprolite with variable gold distribution—coarse gold in quartz veins and fine gold in clay matrix. Singlestage sluicing lost 40% of fine gold.
Solution: Deployed our plant with 6mm trommel screens and centrifugal concentrators (Falcontype) as secondary recovery. Installed online gold analyzer for realtime grade monitoring.
Results: Fine gold recovery improved from 55% to 82%. Total recovery reached 93%. Payback period on equipment was 8 months based on additional gold capture.
River Terrace Deposit in Southeast Asia
Challenge: An Indonesian operation processed 500 TPH of river terrace gravels with high silt content (20%). Conventional plants required daily cleaning of settling ponds.
Solution: Our plant included a hydrocyclone desander (200 TPH capacity) and a belt filter press for tailings dewatering. Water recycle rate reached 92%.
Results: Water consumption dropped from 1,500 m³/day to 400 m³/day. Pond cleaning frequency reduced from weekly to quarterly. Operating costs decreased by $180,000 annually.
Commercial Considerations
Equipment Pricing Tiers (FOB OEM Factory):
- Standard Configuration: $1.8M$2.2M (includes trommel, jigs, pumps, control system, 12month warranty)
- Premium Configuration: $2.4M$2.8M (adds centrifugal concentrators, online analyzer, automated lubrication, 24month warranty)
- Turnkey Package: $3.2M$3.8M (includes site survey, foundation design, installation supervision, 6month operator training)
- Clay dispersant dosing system: $85,000
- Additional jigging stage (4cell): $120,000
- Remote monitoring and SCADA integration: $65,000
- Spare parts kit (12month supply): $180,000
- Extended warranty (years 25): $150,000/year
- Basic: Annual inspection and calibration: $45,000/year
- Standard: Quarterly maintenance visits + 24/7 phone support: $95,000/year
- Premium: Onsite technician (6 months), full parts inventory: $220,000/year
- 30% down payment, balance upon delivery (standard)
- 20% down, 40% on delivery, 40% over 12 months (available for qualified buyers)
- Equipment leasing: 3660 month terms with buyout option (subject to credit approval)
- Performancebased payment: 10% of incremental gold recovery for first 24 months (limited availability)
Optional Features:
Service Packages:
Financing Options:
Minimum Order: 1 unit (OEM factory direct). Volume discounts available for 3+ units: 5% discount for 35 units, 8% for 610 units.
FAQ
Q: What is the minimum order quantity for OEM factory direct purchase?
A: The minimum order is one complete 500 TPH gold washing plant. We do not sell components separately unless part of a service agreement. Volume discounts apply for orders of 3 or more units.
Q: Can this plant handle feed with clay content above 40%?
A: Yes, but with modifications. For clay content above 40%, we recommend adding a prewet conveyor (additional $95,000) and increasing wash water pressure to 18 bar. Our field data shows 92% recovery at 45% clay content with these additions.
Q: What is the typical delivery lead time from order?
A: Standard lead time is 1620 weeks from order confirmation and down payment. This includes fabrication, assembly testing, and crating. Expedited delivery (1214 weeks) is available at 10% premium.
Q: How does this plant compare to a mobile washing plant for gold recovery?
A: Mobile plants typically handle 100200 TPH and have lower recovery rates (7585%) due to less sophisticated concentration circuits. Our 500 TPH plant achieves 1520% higher recovery and 23x longer service life, but requires a prepared site and foundation.
Q: What training do you provide for operator teams?
A: We provide 2week onsite training for up to 6 operators, covering startup, shutdown, troubleshooting, and maintenance. Advanced training (1 week) on jig optimization and screen replacement is available at $15,000 per session.
Q: Can the plant be relocated after initial installation?
A: Yes. The modular skid design allows relocation in 46 weeks. Relocation cost is typically $250,000$400,000 depending on distance and site preparation. We recommend a maximum of 2 relocations over the plant's 15year life.
Q: What is the warranty coverage and what is excluded?
A: Standard warranty covers manufacturing defects for 12 months or 8,000 operating hours, whichever comes first. Excluded items: wear parts (screens, jig hutch liners, pump impellers), damage from improper operation, and modifications without OEM approval. Extended warranty options are available.