1. PAINPOINT DRIVEN OPENING

Are you facing persistent bottlenecks in your primary crushing and liberation circuit? Inefficient gold recovery often stems from inadequate ore preparation, directly impacting your bottom line. Consider these common operational challenges:
Low Throughput & High Downtime: Aging or undersized stamp mills struggle with modern ore volumes, causing processing delays and costly production halts for maintenance.
Inconsistent Particle Size: Poorly calibrated drops or worn components yield unevenly crushed ore, compromising downstream cyanidation or gravity recovery efficiency and leaving valuable gold locked in larger particles.
Excessive Operating Costs: High energy consumption per ton of ore processed, coupled with frequent manual adjustments and the laborintensive replacement of heavy stamps and mortars, erodes profit margins.
Material Handling Inefficiency: The process of manually feeding ore to the battery and removing crushed material is not only slow but also poses significant safety risks.

Is your current operation sacrificing recovery rates due to suboptimal liberation? Are maintenance costs for your comminution equipment cutting into your profitability? A modern, reliable stamp mill for gold mining is a proven solution designed to address these exact issues.

2. PRODUCT OVERVIEW: HeavyDuty Gold Stamp Mill

This equipment is a mechanized, industrialgrade stamp mill battery engineered for the reliable primary crushing and liberation of goldbearing quartz ores. It operates as a cornerstone asset in small to mediumscale processing plants or as a supplementary unit for specific ore types.

Operational Workflow:
1. Controlled Feed: Runofmine ore is consistently fed into a centralized hopper, regulating input to the battery.
2. Mechanical Crushing: Camshafts lift and release heavy iron stamps (batteries of 35), which drop onto solid steel mortars containing the ore.
3. Continuous Liberation: The repeated impact fractures the quartz rock, progressively liberating free gold particles.
4. Slurry Discharge: Crushed material is flushed with water through grated screens at the mortar base, creating a slurry for downstream gravity separation (e.g., shaking tables, sluices).

Application Scope & Limitations:
Ideal For: Hard rock (lode) gold ores where free gold is encapsulated in quartz; operations requiring robust, relatively simple technology; sites with limited access to complex grid power.
Limitations: Not suitable for soft, clayrich ores that cause packing; less energyefficient than some modern jaw crusher/ball mill circuits for very highvolume operations; requires consistent water supply for slurry handling.

3. CORE FEATURES

Modular Battery Design | Technical Basis: Independent stamp assemblies mounted on a common camshaft | Operational Benefit: Allows individual stamps to be taken offline for maintenance without halting the entire mill. Operators can replace shoes or check mortars during scheduled pauses. | ROI Impact: Reduces unscheduled downtime by up to 30%, maintaining throughput targets.

Hardened Alloy Wear Components | Technical Basis: Highchromium iron castings for stamps and manganese steel liners for mortars | Operational Benefit: Components withstand extreme repetitive impact abrasion, extending service life under continuous heavy loads. | ROI Impact: Lowers costperton for wear parts by an average of 40% compared to standard carbon steel components.

Precision Camshaft & Lift Mechanism | Technical Basis: Computerbalanced forged steel camshaft with regulated lift height adjustment | Operational Benefit: Ensures uniform drop height and impact force across all stamps, producing a consistent 20 mesh product size critical for optimal gold recovery. | ROI Impact: Improves downstream recovery efficiency by delivering uniformly liberated ore, minimizing reprocessing.

Integrated WaterFlush System | Technical Basis: Manifold piping with adjustable flow valves to each mortar box | Operational Benefit: Provides controlled slurry formation and immediate removal of crushed material, preventing screen clogging and reducing dust. | ROI Impact: Enhances operational safety by suppressing silica dust and increases processing speed through efficient material transport.

Centralized Grease Lubrication System | Technical Basis: Automated network delivering lubricant to all major bearings and wear points on a timed cycle | Operational Benefit: Eliminates manual greasing requirements in hardtoreach areas, ensuring optimal bearing life and reducing lubricationrelated failures. | ROI Impact: Cuts routine maintenance time by approximately 15 hours per week and extends major overhaul intervals.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard (Legacy Stamp Mills) | Our Stamp Mill Solution | Advantage (% Improvement) |
| : | : | : | : |
| Availability (Uptime)| ~7580% due to lengthy component changes| >92% via modular design & quickchange parts| +15% operational time |
| Tons Processed per Wear Part Set| 5,000 7,000 tons| 10,000 12,000 tons (verified field data)| +70% material processed |
| Specific Energy Consumption| ~56 kWh per ton crushed| ~44.5 kWh per ton crushed (optimized drive train)| 20% energy cost per ton |
| Target Product Size Consistency (20 mesh)| ±15% variance across battery| ±8% variance across battery (precision cam control)| +47% size uniformity |

5. TECHNICAL SPECIFICATIONS

Capacity & Rating: Configurable as 3stamp or 5stamp battery units. Throughput ranges from 0.5 to 2.5 tons per hour, dependent on ore hardness and feed size.
Power Requirements: Driven by a single electric motor (options from 30 HP to 75 HP). Can be adapted for diesel power generation in remote locations.
Material Specifications: Stamp stems from hightensile steel; Stamp shoes from NiHard alloy iron; Mortar boxes lined with replaceable AR400 manganese steel plates; Structural frame from heavyduty rolled steel sections.
Physical Dimensions (5Stamp Unit): Approx. Length: 3.5m x Width: 1.8m x Height: 2.2m (excluding feed hopper). Total weight approx.: 8,500 kg.
Environmental Operating Range: Designed for ambient temperatures from 10°C to +45°C. All bearings are sealed against dust and moisture ingress.

6. APPLICATION SCENARIOS

SmallScale Mining Cooperative Challenge:| Challenge:| A cooperative in West Africa used manual crushing followed by rudimentary stamp mills, experiencing low throughput (<0.3 t/hr) and estimated gold losses exceeding 30% due to poor liberation.

Solution:| Implementation of two standardized 3stamp mill batteries with integrated slurry launders feeding centralized shaking tables.| Results:| Throughput increased to 1.8 t/hr across both units. Consistent crushing improved gravity recovery yields by an estimated 25%, paying back the equipment investment within 14 months of operation.

Historic Mine Tailings Reprocessing Challenge:| Challenge:| A project in South America aimed to reprocess old tailings but required gentle yet effective liberation to avoid excessive sliming of already fine material unsuitable for standard crushing.| Solution:| A customconfigured stamp mill with reduced drop height was deployed as the primary crusher to break conglomerates without pulverizing the existing finer fractions.| Results:| The unit achieved targeted liberation without generating excess fines below 100 mesh, enabling efficient cyanidation of the newly fractured material and improving overall project viability.

7 COMMERCIAL CONSIDERATIONS

Equipment Pricing Tiers: Pricing is structured around the stamp battery configuration:
Tier I – Base Unit
Tier II – Base Unit + Spares Kit
Tier III – Turnkey Package
Optional Features & Upgrades: Diesel power pack integration; Advanced vibration monitoring sensors; Automated feed conveyor systems; Secondary containment sumps.
Service Packages: Threetiered annual service agreements are available
Bronze
Silver
Gold
Financing Options: To support capital planning we offer
Direct LeasetoOwn agreements over periods upto five years;

8 FAQ

Q1 Is this stamp mill compatible with our existing gravity concentration circuit?
Yes industry testing demonstrates its product size distribution is ideally suited for feeding shaking tables sluices or centrifugal concentrators A standard discharge launder can be fabricated to interface directly with your existing setup

Q2 What is the expected operational impact on our labor requirements?
Your operators will benefit from reduced manual handling The centralized feed hopper automated lubrication system significantly decrease direct physical labor compared traditional designs typically requiring one trained operator rather than two

Field data shows that wellmaintained units operate effectively between major inspections This addresses your challenge of frequent unplanned stops

A basic spares kit including shoes die rings gaskets ensures you can perform most wear part replacements immediately minimizing procurement delays

We provide detailed foundation drawings motor specifications Our technical team reviews your site layout prior shipment ensuring all interface points are clearly defined

Standard commercial terms include FOB manufacturing plant with warranty covering defects in materials workmanship Extended warranty coverage available under service packages

Implementation typically requires four weeks lead time Installation commissioning supervised by our engineer usually completed within five working days assuming prepared foundation utilities