1. PAINPOINT DRIVEN OPENING

Are you managing gold recovery operations burdened by inconsistent throughput, excessive downtime for maintenance, and rising operational costs? Key challenges with traditional comminution and liberation processes directly impact your bottom line:
High Operational Expenditure: Excessive energy consumption per ton of ore processed and frequent replacement of wear parts like dies and shoes.
Unplanned Downtime: Mechanical failures in camshafts or bearings halt entire processing lines, costing thousands per hour in lost production.
Inefficient Liberation: Inconsistent particle size distribution from the crushing stage limits optimal gold exposure to leaching agents, reducing overall recovery rates.
Labor Intensity & Safety: Manual feeding and monitoring of heavy stamp batteries increase labor costs and present safety risks.
Scalability Limitations: Difficulty in reliably scaling operations to process highergrade or harder ore bodies without major capital investment.

How can you achieve more predictable throughput, reduce cost per ton, and improve gold liberation without constant mechanical intervention? The solution lies in modernized, heavyduty stamp mill technology engineered for commercialscale reliability.

2. PRODUCT OVERVIEW

Our HeavyDuty Industrial Stamp Mill is a mechanized crushing system designed for the primary liberation of gold from quartz and hard rock ore. It operates on the principle of repetitive percussive crushing via weighted stamps dropped onto ore fed into a mortar box.

Operational Workflow:
1. Feed: Runofmine or primarycrushed ore is consistently fed into the stamp mill’s mortar box via a regulated conveyor or feeder system.
2. Crushing: Mechanically lifted cast iron or steel stamps are released in a controlled sequence, pulverizing the ore against a hardened anvil block (die) within the mortar box.
3. Wash & Discharge: A continuous flow of water washes the finely crushed slurry through a perforated screen plate at the mortar box's end, ensuring continuous operation and proper particle size discharge.
4. Concentration: The discharged slurry is routed to downstream concentration systems such as sluices, shaking tables, or amalgamation plates for gold recovery.

Application Scope & Limitations:
Scope: Ideal for small to midscale hard rock gold mining operations, pilot plants, and processing centers dealing with quartz veins and sulphide ores requiring physical liberation. Effective as a primary or secondary crusher in a dedicated gravity recovery circuit.
Limitations: Not suitable for wet, clayrich material without prior scrubbing; requires a consistent feed size (typically 2" to 4"); less energyefficient than some modern roller crushers for very highvolume operations (>500 TPD).

3. CORE FEATURES

Modular Frame Design | Technical Basis: Fabricated highcarbon steel Ibeam construction with bolted sections | Operational Benefit: Enables transport to remote sites and simplified onsite assembly without heavy welding. Allows for future battery expansion. | ROI Impact: Reduces installation time by up to 40% and lowers mobilization costs.

Forged Alloy Stamp Shoes & Dies | Technical Basis: Heattreated chromium steel alloys with high impact abrasion resistance | Operational Benefit: Withstand direct percussive impact and abrasive wear, extending service life between replacements. | ROI Impact: Field data shows a 6080% improvement in wear life over standard manganese steel, directly reducing part inventory costs and downtime.

Precision Camshaft & Bearing Assembly | Technical Basis: CNCmachined cam lobes on a balanced steel shaft supported by sealed roller bearings | Operational Benefit: Provides smooth, consistent liftanddrop motion with minimal vibration and frictioninduced heat generation. | ROI Impact: Eliminates common failure points, with industry testing demonstrating mean time between failures (MTBF) increased by over 400 hours compared to bushingbased designs.

Automated Lube System | Technical Basis: Centralized grease manifold with programmable intervals for all major bearing points | Operational Benefit: Your operators benefit from reduced manual lubrication tasks and guaranteed bearing protection. | ROI Impact: Prevents costly bearing seizures; documented to extend major bearing service life by an average of 30%.

Adjustable Screen Plate System | Technical Basis: Quickrelease clamp system with multiple screen plate mesh options | Operational Benefit: Allows operators to change final grind size in under 30 minutes to optimize liberation for varying ore characteristics. | ROI Impact: Increases recovery efficiency by enabling precise control over particle size distribution sent to concentration units.

Integrated Water Flow Management | Technical Basis: Regulated water inlet manifolds and slurry discharge chutes designed to prevent overflow or shortcircuiting | Operational Benefit: Maintains optimal solidstowater ratio in the mortar box for efficient washing without spillage. | ROI Impact: Minimizes water usage (a key operational cost) by up to 15% through recirculation compatibility and improves metal recovery by retaining fine particles.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard (Legacy Stamp Mills) | Our Stamp Mill Solution | Advantage (% Improvement) |
| : | : | : | : |
| Availability (Uptime)| ~85%, frequent unplanned stops for adjustments/repairs| >92%, designed for preventative maintenance windows| +8% More Production Time |
| Wear Part Cost/Ton| High; frequent replacement of shoes/dies| Significantly reduced via alloy specification| 65% Estimated Savings |
| Energy Efficiency| Low; often driven by highconsumption electric motors or line shafts| Optimized with hightorque, IE3class motors & efficient gear reduction| 18% kWh per ton crushed |
| Throughput Consistency| Variable; often declines as parts wear or feed changes| Stable; maintained via precision mechanics & adjustable screens| +/ 5% Deviation vs. +/ 15% |
| OnSite Assembly Time| Lengthy; often requires specialized field welding/fitting| Streamlined; modular bolttogether design reduces complexity| 40% Installation Labor |

5. TECHNICAL SPECIFICATIONS

Model Range Capacity: 110 Tons Per Hour (TPH), per battery unit. Configurable in multibattery setups.
Power Requirements: Dependent on model. Standard range: 15 kW to 75 kW per battery (35 stamps). Engineered for 380480V, 3phase, 50/60Hz power supply.
Material Specifications:
Frame & Mortar Box: ASTM A36 Carbon Steel
Stamps & Camshafts: AISI 4140 Forged Steel
Stamp Shoes & Dies: HighChromium Alloy Steel (HRC 5862)
Screen Plates: AbrasionResistant Steel Plate
Physical Dimensions (Single Battery 5 Stamp): ~4m (L) x 2m (W) x 3m (H). Weight approx.: ~8,500 kg.
Environmental Operating Range: Designed for ambient temperatures from 10°C to +45°C. All critical bearings are sealed against dust and moisture ingress.

6. APPLICATION SCENARIOS

MidScale Hard Rock Mine West Africa | Challenge:A remote site struggled with the reliability of imported secondhand jaw crushers and poor downstream recovery due to inconsistent grind size from hammer mills.| Solution:| Implementation of two parallel 5stamp mill batteries as the primary liberator unit ahead of shaking tables.| Results:| Achieved a stable throughput of ~8 TPH at a consistent 20 mesh grind size.Gold recovery rates improved by an estimated22%due to better liberation,and plant availability increased due tothe stamp mill's mechanical simplicity.

Pilot Plant & Bulk Sampling Operation North America Challenge:| Required a robust,costeffective methodto process hundreds of tonsof variabledrill coreand trench samplesfor metallurgical testing.| Solution:| Deploymentof asingle,b skidmounted3stamp millwith adjustable screens.| Results:| Provided highly reproducible crush sizesfor test batches,facilitating accurate recovery studies.The unit's mobility allowed itto be used across multiple projectsites.Reduced sample preparation costsby approximately35%versus thirdparty crushing services.

Heritage Tailings Reprocessing South America Challenge:| A project aimed atreprocessing old stampplant tailingsneeded equipment that couldhandleabrasive materialand replicate historical liberation parametersfor optimal additional extraction.| Solution:| Installationof anew stamppmillwith specific alloy wear partsto handle abrasive contentand screens calibratedto match historical discharge.| Results:| Successfully integrated into the existing flowsheet.New equipment durability reduced operating interruptions.Metallurgical accounting confirmedan additional~15%gold extractionfromthe previously processed materialdue toprecise sizec control

Commercial Considerations

Pricing is structured around throughput capacityand configuration complexity:

Tier1 Base Unit(13TPH single battery):Competitive capital costfor entrylevelor pilot scaleoperations

Tier2 Production Unit(5TPH single battery):The most common commercial configurationincludes themodular frame alloy wear partsand automated lube systemas standard

Tier3 Plant Scale(Multiplebattery setup10+TPH):Involves custom engineeringfor synchronized operationwith integrated feedand slurry management systemsVolumebased discounting applies

Optional Features:
Highfrequencyvibration monitoring sensors
Dust suppression shroud kits
Spare part starter kits(including shoes dies screen plates)
Advanced motor controls with softstart capability

Service Packages:
Standard Warranty12 months on parts6 months on labor
Extended Service Agreement:Covers scheduled maintenancewear part inspectionsand priority support
Onsite Operator Training Program:A twoday course focused onsafe operation basic troubleshootingand wear part replacement

Financing Options:
We workwith international equipment financing partners toofferleasetoown structuresor term loans typically rangingfrom24to60months subjectto credit approvalDirect capital purchase discountsare available

FAQ

Q What feed sizerequirement doesyour stamppmill have?
A For optimal operation we recommenda maximum feed sizeofminus two inches(50mm)Consistent feed sizeprevents packingin themortar boxand ensures evenwear

Q How doesa modern stamppmill comparetoa small jaw crusher ball mill circuit?
A For hard rockgold liberationin small tomid scalesthe stamppmill offersa simpler more robust mechanical solutionwith lower overall maintenance complexityanda smaller footprintIt is particularly effectivewhere gravity recoverable gold GRGis presentas itcan liberatewithout overgrinding

Q Are wear parts interchangeablewith other stamppmills?
A While some dimensionsmay be similarthe metallurgyof our forged alloy shoesand diesis proprietaryFor guaranteed performanceandspecifiedwear lifewe recommendusingour genuine partsInterchangeability cannotbe assuredwithout engineering review

Q What isthe typical installationrequirement?
A Installationrequiresa level reinforced concrete foundationadequate power supplyas per specificationsanda reliable water sourcefor slurry managementOur engineering packagprovides foundation drawingsand utility connection details

Q Can you assistwith flowsheet integrationfor our existing plant?
A Yesour process engineerscan reviewyour existing circuitandoffer integration recommendationsforfeed preparationstamp millingands downstream slurry handlingto optimize overall recovery

Q What arethe lead timesfor equipment delivery?
A Lead timesvaryby modelcomplexityStandard Tier2 Production Units typically havea lead timeof1416weeksfrom order confirmationCustom configurationsmay requireadditional time