1. PAINPOINT DRIVEN OPENING

Are you facing escalating operational costs and unpredictable throughput in your gold recovery circuit? Key challenges with traditional comminution and liberation often include:

High Energy Consumption: Inefficient crushing and grinding can consume excessive power per ton of ore processed, directly eroding profit margins.
Excessive Downtime for Maintenance: Frequent breakdowns of underengineered components lead to unplanned stoppages, halting your entire processing line.
Inconsistent Particle Size Liberation: Poorly calibrated or worn machinery fails to deliver the optimal 100 mesh to 200 mesh grind critical for maximum gold recovery in cyanidation or gravity circuits.
High Wear Part Replacement Costs: The abrasive nature of quartz and host rock leads to rapid deterioration of liners, dies, and shoes, resulting in high recurring parts expenditure and labor.
Scalability Limitations: Older stamp mill designs or piecemeal systems struggle to adapt to increased feed grades or tonnage requirements without major capital overhaul.

Is your operation seeking a robust, engineered solution that addresses these specific pain points with measurable returns? The modern industrial stamp mill represents a significant evolution from its historical counterparts, designed for reliability and costeffective performance in today’s mining environment.

2. PRODUCT OVERVIEW: INDUSTRIAL STAMP MILL FOR GOLD ORE PROCESSING

This product line comprises heavyduty, mechanized stamp mills engineered for the primary crushing and fine grinding of goldbearing ores. The equipment serves as a core component in mineral liberation, preparing ore for subsequent recovery processes.

Operational Workflow:
1. Feed Introduction: Runofmine or primarycrushed ore is fed into a sealed mortar box.
2. Mechanized Percussion: Camdriven, weighted stamps (shoes) are lifted and dropped in a controlled sequence onto the ore bed within the mortar box.
3. Particle Reduction: The repeated impact fractures the ore along grain boundaries, progressively reducing it to a fine slurry.
4. Slurry Discharge: Ground material mixes with water to form a slurry, which passes through a perforated discharge screen for classification.
5. Circuit Integration: The slurry reports to downstream processes such as gravity concentration tables, centrifugal concentrators, or leaching tanks.

Application Scope & Limitations:
Ideal For: Hard rock gold ores (e.g., quartz veins), pilot plant operations, smalltomedium scale production plants (1100 TPD), and operations prioritizing mechanical simplicity and robust construction.
Limitations: Not suitable for soft, clayrich material without prior scrubbing; requires consistent feed size (typically 2"); less energyefficient than ball mills for very hightonnage operations (>150 TPD).

3. CORE FEATURES

Modular Frame Construction | Technical Basis: Fabricated hightensile steel sections with precision alignment mounts | Operational Benefit: Allows for staged installation, easier site relocation, and simplified future expansion | ROI Impact: Reduces initial installation labor costs by an estimated 1520% and protects longterm asset flexibility.

Hardened Alloy Wear Components | Technical Basis: Chromiummolybdenum steel stamps (shoes) and manganese steel mortar box liners | Operational Benefit: Withstands extreme abrasive impact, extending service life between replacements | ROI Impact: Field data shows a 4060% reduction in annual wear part costs compared to standard carbon steel components.

Precision Cam Shaft & Bearing Assembly | Technical Basis: Forged steel cam shaft with sealed roller bearings in an oilbath housing | Operational Benefit: Ensures consistent stamp lift height and drop frequency with minimal friction losses | ROI Impact: Delivers reliable throughput while reducing drive motor energy consumption by up to 10% versus bushed designs.

Adjustable Discharge Screen System | Technical Basis: Quickchange screen panels with variable aperture sizing | Operational Benefit: Operators can control final grind size to optimize liberation for specific ore characteristics | ROI Impact: Enables process tuning that can improve downstream gold recovery rates by 25%, directly impacting revenue.

Integrated Water Injection & Dust Suppression | Technical Basis: Manifold with calibrated nozzles inside the mortar box | Operational Benefit: Eliminates airborne silica dust at source, ensuring a safer workplace and compliant operation | ROI Impact Mitigates major regulatory risk and associated fines while protecting worker health.

Centralized Grease Lubrication System | Technical Basis: Networked lines feeding all major bearing points from a single station | Operational Benefit: Enables safe, rapid routine maintenance during short scheduled stops; extends bearing life | ROI Impact Cuts scheduled lubrication downtime by 70% and prevents costly bearing failures.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard (Legacy Designs) | Our Stamp Mill Solution | Advantage (% Improvement) |
| : | : | : | : |
| Availability / Uptime| 8085% (frequent unplanned stops) |> 92% (engineered reliability) |> 812% improvement |
| Tons per kWh| Varies widely; often inefficient| Optimized cam profile & drive train| Up to 15% more efficient |
| Wear Part Life (Shoes)| 500 800 operating hours| 1,200 1,500 operating hours| +50% to +80% improvement |
| Grind Consistency (150 mesh)| +/ 15% variance in output| +/ 7% variance in output|< 50% reduction in variance |
| Annual Maintenance Labor Hours| High due to manual lubrication & part change complexity| Reduced via centralized systems & modular design|<3040% reduction |

5. TECHNICAL SPECIFICATIONS

Model Range & Capacity: Three standard models offering throughput from 1 Ton Per Hour (TPH) for pilot plants up to 8 TPH for continuous production lines.
Power Requirements: Dependent on model; from 15 kW (20 HP) to 45 kW (60 HP) electric motor drives. Configured for standard industrial voltages (400V/50Hz or 480V/60Hz).
Material Specifications: Mortar Box Liner: ASTM A128 Manganese Steel (1114%). Stamps/Shoes: AISI 4140 Alloy Steel, heattreated. Frame: ASTM A36 Structural Steel.
Physical Dimensions (Largest Model): Approx. Length: 3m x Width 2m x Height 2m . Weight approx 6 tonnes .
Environmental Operating Range Designed for ambient temperatures from 5°C 40°C . Dust suppression system ensures operation within stringent air quality regulations.

6. APPLICATION SCENARIOS

MidScale Hard Rock Mine West Africa Challenge An operation experienced rapid wear on hammer mill components processing highsilica ore leading downtime every weeks inconsistent grind affecting cyanide leach recovery Solution Installation of a TPH heavy duty stamp mill as the primary grinder ahead of the ball mill circuit Results Stamp mill absorbed the most abrasive crushing stage Wear on downstream ball mill liners decreased by Annual maintenance parts costs reduced by Overall plant availability increased by

Artisanal & SmallScale Mining Cooperative South America Challenge Multiple small teams using manual crushers inefficient mercury amalgamation processes needing consistent fine grind improve recovery move toward cleaner extraction Solution Centralized processing plant built around two TPH industrial stamp mills feeding shared gravity concentration tables Results Provided predictable controllable feed size eliminated manual crushing labor Gold recovery via gravity methods increased from an estimated quantifiably measured providing economic justification for mercuryfree technology

7 COMMERCIAL CONSIDERATIONS

Equipment Pricing is tiered based on capacity drive configuration
Basic Tier Includes core stamp mill frame cam assembly motor drive base wear parts
Premium Tier Adds integrated lubrication system spare parts kit advanced motor controls
Optional Features Water recycling systems sound dampening enclosures automated feed controllers
Service Packages Annual inspection parts discount agreements hour technical support remote diagnostics
Financing Options Available through partner institutions including leasetoown structures tailored payment plans assist with capital expenditure planning

8 FAQ

What feed size does your stamp mill require Optimal performance is achieved with feed material reduced to minus inches mm via a primary jaw crusher

Can this system integrate with our existing gravity or leaching circuit Yes the discharge slurry is designed be compatible with standard sumps pumps distribution systems downstream processes

How does operational noise compare traditional designs Engineered bases sound insulation options reduce operational noise levels significantly often meeting sitespecific requirements without full enclosure

What is the typical delivery lead time For standard models lead time is weeks from order confirmation Custom configurations may require additional time

What training is provided for our operations team Comprehensive operational manuals are supplied along with optional onsite commissioning operator training sessions conducted by our field engineers

Are wear parts readily available We maintain strategic global inventory of critical wear components ensuring expedited shipping minimize potential production delays

Do you offer performance guarantees Yes we provide guaranteed throughput capacity within specified parameters based on agreed feed characteristics particle size distribution