1. OUVERTURE ENTRAÎNÉE PAR POINT DE DOULEUR

La gestion d'une opération de traitement de l'or nécessite d'équilibrer le débit, récupération, et les coûts opérationnels. Traditional comminution methods often fall short, creating significant bottlenecks. Êtes-vous confronté à ces défis persistants?

Consommation d'énergie élevée & Coût: Conventional ball mills and crushers are energyintensive, with power costs consuming a disproportionate share of your operating budget.
Mercury Amalgamation Dependency: Inefficient liberation of gold from ore drives reliance on hazardous mercury amalgamation in the concentration stage, posing severe environmental and health liabilities.
Excessive Water Usage & Gestion des résidus: Wet milling processes demand large volumes of water and create slurry tailings that are costly to contain and remediate.
Operational Downtime for Maintenance: Changements fréquents de doublure, défaillances de roulements, and unplanned stops in continuous systems directly impact tonnage processed and profitability.
Low Recovery Rates from Complex Ores: Inadequate particle size reduction fails to fully liberate fine gold particles locked within host rock, leaving revenue in the tailings.

What if your crushing and grinding circuit could address these issues simultaneously, reducing both operational expense and environmental footprint?

2. APERÇU DU PRODUIT: ECOFRIENDLY MODULAR STAMP MILL

The EcoFriendly Modular Stamp Mill is a modern reinterpretation of the classic gravityimpact crushing principle, engineered for selective milling of goldbearing quartz veins and hard rock ores. It is designed as a drycrushing or minimalwater addition system to facilitate mercuryfree gold recovery.

Flux de travail opérationnel:
1. Préparation des aliments: Minerai brut ou minerai concassé primaire (<50mm) is fed into a sealed hopper.
2. GravityImpact Milling: Camdriven heavyduty stamps (marteaux) repeatedly drop onto the ore bed contained within a hardened steel mortar box, pulverizing material through controlled impact.
3. Classification & Recyclage: Crushed material passes through a replaceable screen grate at the mortar box exit. Oversize material is recycled; correctly sized material discharges for concentration.
4. Dry Processing Pathway: The milled, dry product is conveyed directly to downstream electrostatic, airgravity, or dry magnetic separators.

Champ d'application & Limites:
Idéal pour: Opérations de petite et moyenne taille (150 DPT), vein mining, usines pilotes, sites éloignés avec accès limité à l’eau, and regions with strict environmental regulations prohibiting mercury or cyanide.
Best Suited Ore Types: Freemilling gold in quartz, minerais associés aux sulfures (postroasting), and other brittle materials.
Limites: Not optimal for highclay content ores (causes packing), very hightonnage operations (>100 DPT), or where ultrafine grinding (<100 engrener) is required as a standalone solution.

3. CARACTÉRISTIQUES PRINCIPALES

Sealed Dust Suppression System | Base technique: Negative pressure airflow with HEPA filtration | Avantage opérationnel: Contient de la poussière de silice à la source, protecting operator health and meeting OSHA/MSHA exposure limits | Impact sur le retour sur investissement: Eliminates fines for dust violations and reduces longterm liability from silicosis claims

Modulaire, BoltTogether Design | Base technique: Standardized CNCmachined frame components | Avantage opérationnel: Rapid deployment and relocation with minimal foundation work; easy expansion by adding modules | Impact sur le retour sur investissement: Cuts installation costs by up to 60% compared to pouredconcrete mills; reduces site downtime during moves

Variable Cam Profile & Drop Height | Base technique: Adjustable eccentric cams on a rotating shaft | Avantage opérationnel: Operators can tune impact energy from light peening to heavy crushing for different ore hardness | Impact sur le retour sur investissement: Optimizes specific energy consumption (kWh/tonne) by matching force to feed material, reducing power waste

Tungsten Carbide Composite Wear Plates | Base technique: Replaceable liner plates with tungsten carbide inserts in highwear zones of mortar box | Avantage opérationnel: Extends service life between replacements by 35x compared to manganese steel | Impact sur le retour sur investissement: Lowers consumable parts cost per ton milled and reduces maintenance frequency

Integrated Dry PreConcentration Feed Path | Base technique: Discharge chute designed for direct coupling to airgravity or electrostatic separator feed system | Avantage opérationnel: Enables complete mercuryfree processing line without intermediate handling or reconveying | Impact sur le retour sur investissement: Increases overall recovery efficiency of free gold by minimizing handling losses before concentration

Solar/Generator Hybrid Power Ready | Base technique: Hightorque lowRPM motor configuration compatible with variable frequency drives (VFD) | Avantage opérationnel: Stable operation on intermittent renewable power or generator sets without risk of stalling under load | Impact sur le retour sur investissement: Enables operation in offgrid areas; can cut grid power consumption by over 40% when paired with solar arrays

4. AVANTAGES CONCURRENTIELS

| Mesure de performances | Norme de l'industrie (Small Ball Mill/Crusher) | Solution de moulin à timbres écologique | Avantage (% Amélioration) |
| : | : | : | : |
| Consommation d'eau par tonne traitée| 500 1,500 Liters/Ton| 90% Réduction |
| Consommation d'énergie spécifique (kWh/tonne)| 15 25 kWh/tonne (for similar P80 grind)| 8 12 kWh/tonne| ~4050% Improvement |
| Temps d'arrêt pour maintenance (Hours/Month)| 2030 Hours/Month| <8 Hours/Month| ~70% de réduction |
| Efficacité de libération de l'or (Or gratuit 95% Libération (via controlled impact)| ~510% Absolute Increase |
| Time to Operational Deployment| 46 Semaines (foundation curing, alignement)| 57 Jours (assemblage modulaire)| ~80 % plus rapide |

5. SPÉCIFICATIONS TECHNIQUES

Capacité de la gamme de modèles: EFM5 / EFM10 / EFM20
Évaluation du débit: 5, 10 & 20 Tonnes par heure (TPH) of nominal 10mm feed
Exigences d'alimentation: Threephase electric motor; EFM20 model requires 45 kW motor @ 1800 RPM
Système d'entraînement: Gearreduced camshaft with selfaligning spherical roller bearings
Spécifications matérielles: ASTM A36 structural frame; Mortar Box lined with AR400 steel & tungsten carbide composite plates; Stamps fabricated from forged alloy steel
Dimensions physiques (EFM20): L6m x W3m x H4m (assembled). Modules ship in sections <2.5m de largeur.
Plage de fonctionnement environnementale: Fully enclosed design operates in 20°C to +50°C ambient temperatures. IP54 rating for dust/water protection.

6. SCÉNARIOS D'APPLICATION

Artisanal & Exploitation minière à petite échelle (ASM) Formalization Project – West Africa

Défi: A governmentsponsored project needed to replace hundreds of manual mortarandpestle and mercurydependent grinding sites with a scalable, cleaner technology that maintained simplicity but drastically reduced toxic emissions.
Solution: Deployment of semimobile EFM5 stamp mill units at centralized processing hubs. Each unit served multiple mining cooperatives.
Résultats: Field data shows an average gold recovery increase of 22% due to improved liberation. Mercury use was eliminated at equipped hubs within six months.

Remote Hard Rock Exploration Camp – Canadian Shield

Défi: An exploration company required onsite bulk sampling and pilot processing but had no access to water or grid power at the drill site. Transporting wet samples was prohibitively expensive.
Solution: Installation of one EFM10 stamp mill powered by a hybrid solardiesel generator system coupled to a dry shaking table.
Résultats: The system processed over 500 tons of drill core reject material onsite, providing critical metallurgical data without water infrastructure. Power fuel costs were reduced by an estimated $15,000 during the campaign versus running a dieselpowered wet mill.

7. CONSIDÉRATIONS COMMERCIALES

Our EcoFriendly Stamp Mill solutions are offered under clear commercial terms designed for project budgeting:

Niveaux de tarification des équipements:
Base Unit Price ranges from approximately $85K USD for the EFM5 model up to $220K USD for the fullyequipped EFM20 model including starter wear parts kit.

Fonctionnalités facultatives & Upgrades Include:

Advanced VFD Control Panel for softstart and speed optimization
Integrated Metal Detector on feed conveyor
Kits de pièces de rechange (6month /12month packages)
Onsite Assembly & Supervision de la mise en service

We offer structured financing options through partner institutions familiar with mining equipment capital expenditure.

A comprehensive service package includes operator training videos/manuals plus optional annual inspection contracts covering lubrication analysis and wear measurement services.

FAQ

What primary crusher feed size is required?

The EcoFriendly Stamp Mill is designed as secondary crusher/grinder unit requiring feed precrushed below two inches (<50mm). We recommend pairing it with our jaw crusher series or equivalent primary reduction equipment.

How does this stamp mill improve gold recovery rates?

By utilizing controlled impact force rather than abrasion alone it creates more clean fractures along mineral grain boundaries improving liberation especially critical free gold particles This leads directly higher recovery rates downstream gravity concentration stages Field data shows consistent improvement between five ten percent absolute recovery compared traditional methods same ore type

Can this equipment be integrated into an existing wet processing plant?

Yes The modular stamp mill can replace older secondary crushing units Its discharge can be routed into existing ball mill circuit However maximum benefit realized when configured as part dedicated dry preconcentration circuit bypassing wet milling entirely certain ore types Our engineers provide integration review service

Quelles sont les exigences typiques en matière de maintenance continue?

Primary tasks involve periodic inspection replacement wear plates mortar box lubricating camshaft bearings Routine maintenance requires standard tools can performed trained plant mechanic Consumable cost typically ranges between two four dollars per ton processed depending local electricity labor rates specific ore abrasiveness

Are there financing options available?

We work several international trade finance institutions offer leasetopurchase loan structures typical terms three five years These tailored mining equipment acquisitions help preserve working capital Contact our commercial team discuss specific program eligibility documentation requirements