1. PAINPOINT DRIVEN OPENING

Are you scaling up alluvial or hard rock gold operations but finding your recovery process is the bottleneck? Managing a 500 TPH feed rate presents distinct challenges that directly impact your bottom line. Inconsistent feed material can lead to frequent clogging and unplanned downtime, halting your entire processing line. Inefficient scrubbing and screening may cause valuable fines to be lost to tailings, representing a direct revenue loss. Furthermore, high water consumption and the need for complex, multistage setups drive up both capital and operational costs. Are you facing rising maintenance expenses from abrasive materials wearing out critical components too quickly? Is your current washing plant struggling to maintain target recovery rates at full capacity, leaving gold in the ground? These operational hurdles translate into measurable costs: every hour of downtime at 500 TPH represents a significant tonnage of unprocessed pay dirt, and every percentage point of unrecovered gold is forfeited profit.

2. PRODUCT OVERVIEW

This product is a heavyduty, modular 500 TPH Gold Mining Washing Plant designed for highvolume, continuous operation in both alluvial (placer) and weathered hard rock deposits. It integrates several key processes into a coordinated system to liberate, concentrate, and recover gold from raw feed material.

Operational Workflow:
1. Primary Feed & Scrubbing: Runofmine or pitrun material is fed into a robust trommel scrubber or drum washer, where it is aggressively scrubbed to break down claybound aggregates and dissolve contaminants.
2. Sizing & Screening: The scrubbed material is precisely screened; oversize (gravels/rocks) are rejected as waste via conveyor, while undersize (sand, silt, and gold) reports to the next stage.
3. Concentration & Recovery: The goldbearing slurry is routed through a series of gravity concentrators (such as centrifugal concentrators or sluices) designed for highcapacity operation, separating highspecificgravity gold from lighter gangue material.
4. Tailings Management & Water Handling: Waste tailings are efficiently conveyed to a disposal area, while process water is typically recirculated via a settling pond or clarification system to minimize fresh water requirements.

Application Scope & Limitations:
Scope: Ideal for largescale placer mining operations, alluvial concessions, and processing weathered saprolite material where gold is liberated through physical washing.
Limitations: Not suitable for processing primary hard rock ores requiring chemical leaching (e.g., cyanidation) as a standalone system. Efficiency can be impacted by extreme clay content without preconditioning and is dependent on consistent feed size distribution.

3. CORE FEATURES

HighCapacity Trommel Scrubber | Technical Basis: Robust drum design with internal lifters and spray bars | Operational Benefit: Ensures thorough breakdown of claybound conglomerates and efficient washing at full 500 TPH feed rate, preventing bottlenecks at the primary stage | ROI Impact: Maximizes upstream throughput, ensuring downstream recovery units operate at design capacity for optimal gold capture.

Modular SkidMounted Design | Technical Basis: Preassembled modules with integrated structural support | Operational Benefit: Reduces onsite installation time and civil works cost by up to 60%. Allows for easier relocation or plant reconfiguration as mining faces advance | ROI Impact: Faster commissioning leads to earlier production revenue; lower relocation costs extend mineable reserve economics.

Advanced Gravity Concentration Circuit | Technical Basis: Multistage cascade of primary roughers and secondary cleaners (e.g., centrifugal concentrators with automatic bowl discharge) | Operational Benefit: Achieves high recovery rates of both coarse and fine gold across variable feed grades with minimal manual intervention | ROI Impact: Directly increases recovered ounces per ton; automated systems reduce labor costs per gram recovered.

LowWater Recirculation System | Technical Basis: Engineered sumps, pumps, and cyclone/pond design for closedloop water management | Operational Benefit: Cuts fresh water consumption by over 80%, crucial for operations in arid regions or areas with strict environmental permits | ROI Impact: Eliminates costs associated with water sourcing and reduces licensing complexity; lowers pumping energy costs.

AbrasionResistant Liner Package | Technical Basis: Highchrome steel or polyurethane liners in highwear areas (scrubber drum, slurry launders) | Operational Benefit: Extends component service life by 35x compared to standard mild steel, reducing frequency of replacement shutdowns | ROI Impact: Lowers longterm maintenance parts inventory cost and increases plant availability (uptime).

Centralized PLC Control & Monitoring | Technical Basis: Programmable Logic Controller with HMI interface monitoring motor loads, feed rates, and pump pressures | Operational Benefit: Provides operators with realtime system health data for predictive maintenance and allows for precise control of process variables from a single station | ROI Impact: Prevents catastrophic component failure; enables consistent operation at peak efficiency parameters.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard for 500 TPH Plants | Our 500 TPH Gold Mining Washing Plant Solution | Advantage (% Improvement) |
| : | : | : | : |
| Overall Gold Recovery Rate | 8592% (variable based on fines) | Consistent 9497% across particle size range
Field data based on 10mm feed with <20% clay content| +5% average increase |
| Plant Availability (Uptime)| ~85% (downtime for wear part changes) |>92% (due to quickchange liner systems & modularity) |>8% increase in operating hours |
| Fresh Water Consumption| ~1500 m³/day recirculating system| 80% reduction in fresh water use |
| Installation & Commissioning Time| 812 weeks postdelivery| 46 weeks with skidmounted modules| ~50% faster deployment |
| Operating Cost per Ton| Baseline = $X/ton processed| Typically 1520% lower than baseline
Savings from power efficiency & reduced liner wear |

5. TECHNICAL SPECIFICATIONS

Design Capacity: 500 metric tons per hour (TPH) of raw feed material.
Power Requirements: Approx. 750 900 kVA total connected load. Configured for mains grid or heavyduty diesel generator sets.
Material Specifications: Primary structure: ASTM A36 carbon steel. Highwear components lined with AR400 steel or equivalent polyurethane composites.
Physical Dimensions (Modular):
Scrubber Module: L22m x W6m x H5m
Concentration Module: L18m x W8m x H4m
Feed/Tailings Conveyors: Custom lengths.
Environmental Operating Range: Designed for ambient temperatures from 20°C to +50°C. Dust suppression systems standard. Can be housed within structures in extreme climates.

6. APPLICATION SCENARIOS

LargeScale Alluvial Operation in West Africa

Challenge: A major concession holder was losing significant fine gold (<100 micron) through their legacy screening plant due to inefficient scrubbing and poor concentration at high tonnage rates (~450 TPH). Water scarcity also constrained operations.
Solution: Implementation of our modular 500 TPH washing plant featuring an enhanced trommel scrubber with intensive spray bars followed by a multistage centrifugal concentrator circuit within a closedwater loop.
Results: Plant achieved a measured recovery rate increase from an estimated 88% to over 96%, capturing an additional $1.2M USD in annualized revenue from previously lost fines within the first year.

Weathered Hard Rock (Saprolite) Processing in South America

Challenge: Transitioning from pure hard rock milling to surfaceweathered saprolite required a preconcentration step to reduce volume sent to the mill while capturing freemilling gold early on.
Solution: A semimobile version of the washing plant was deployed as a primary beneficiation unit ahead of the crushing circuit.
Results: The plant processed overburden/saprolite at full capacity (~480 TPH), recovering over +90% of liberated gravityrecoverable gold upfront while reducing mill load by approximately onethird—leading directly to lower energy consumption per ounce produced overall.

7. COMMERCIAL CONSIDERATIONS

Our trading company provides flexible commercial models tailored for largescale mining projects:

Equipment Pricing Tiers: We offer three standard configurations:
Tier A – Base Plant Core modules including scrubber/screen unit plus primary gravity concentration).
Tier B – Enhanced Recovery Includes Tier A plus secondary concentrators ("cleaners")and upgraded instrumentation).
Tier C – Turnkey System Includes Tier B plus complete water recirculation system package).

Pricing reflects this modular approach—you invest only in the capabilities you require today while maintaining clear upgrade paths later on.

Optional features include automated sampler systems specific installed on concentrate lines), remote telemetry packages allowing offsite monitoring), diesel power generation modules), fully enclosed housing packages suitable environments).

Service packages range from basic commissioning supervision comprehensive annual maintenance contracts including guaranteed spare parts availability critical path items).

Financing options available through partner institutions include leasing structures operating expense models suited contractors), project financelinked procurement major producers).

We provide detailed pro forma models that map capital expenditure against projected increases recovery efficiency help justify investment decisionmakers based clear payback periods typically ranging between months depending local grade conditions).

FAQ

1.Q What type deposit best suited this specific washing plant?
A This solution engineered primarily alluvial placer deposits eluvial colluvial deposits weathered saprolite zones where liberation achieved physical abrasion washing It not designed process unweathered sulphide ores require chemical extraction methods

2.Q How does handle variations clay content within feed?
A The trommel scrubber equipped adjustable lifter configurations variable pressure spray bar systems manage moderate clay content (<25%) For extremely sticky clays we recommend optional prescreening log washer module separate quotation ensure optimal performance

3.Q What typical lead time delivery commissioning?
A For standard configuration lead time manufacturing shipping ranges months FOB port Delivery times site vary location Commissioning supervised our engineers typically requires weeks following arrival site components

4.Q Are spare parts readily available what guarantee provided?
A We maintain strategic inventory critical wear parts guarantee availability dispatch within hours order placement Standard equipment warranty covers manufacturing defects months operation Extended warranty plans available purchase

5.Q Can integrate existing crushing screening circuits?
A Yes modular nature allows flexible integration upstream downstream processes We provide detailed interface specifications engineering support ensure compatibility your existing infrastructure

6.Q What operator skill level required run effectively?
A While designed robust operation basic training provided covers routine controls monitoring Maintenance tasks documented detail Training focuses faultfinding preventative schedules minimize reliance specialized external technicians

7.Q Do offer performance guarantees contractual terms?
A Yes we offer performance guarantees based mutually agreed test protocols conducted during commissioning These typically focus minimum throughput capacity under specified conditions overall recovery efficiency using representative ore samples Guarantees form part commercial contract