1. APERTURA IMPULSADA POR EL PUNTO DE DOLOR

Are you facing escalating operational costs and unpredictable throughput in your gold processing circuit? Para gerentes de planta y contratistas de ingeniería, the comminution stage—particularly with a Chinese stamp mill for gold mining—often presents critical bottlenecks. Los desafíos comunes incluyen:

Alto tiempo de inactividad por mantenimiento: Frequent wear part replacement on traditional stamp mills leads to unplanned shutdowns, directly reducing annual processing hours and revenue.
Tamaño de molienda inconsistente: Variable feed material can cause uneven pulverization, compromising gold liberation and recovery rates in downstream cyanidation or gravity circuits.
Consumo excesivo de energía: Más viejo, inefficient drive systems and heavy mechanical components result in disproportionately high power costs per ton of ore processed.
Operación intensiva en mano de obra: Manual feeding and monitoring requirements increase labor costs and introduce potential for human error in process control.
Escalabilidad limitada & Control: Basic mechanical designs offer little flexibility to optimize performance for varying ore hardness without significant mechanical adjustment.

How do you reduce total cost of ownership while ensuring consistent, reliable ore preparation? The solution lies in modernized, precisionengineered stamp mill technology designed for the demands of contemporary small to mediumscale gold mining operations.

2. DESCRIPCIÓN GENERAL DEL PRODUCTO

This product line refers to modernized, heavyduty mechanical stamp mills engineered for the primary crushing and fine grinding of goldbearing quartz ores. Designed as a robust alternative or upgrade to historical models, these mills are built for continuous duty in hard rock mining applications.

Flujo de trabajo operativo:
1. Alimentación controlada: Runofmine (memoria de sólo lectura) ore is fed via a regulated hopper and feeder system into the mortar box.
2. Precise Pulverization: A camshaft lifts cast iron or steel stamps (zapatos) in a sequenced cycle, dropping them under gravity onto the ore bed within the mortar box.
3. Descarga continua: Finely crushed material passes through a perforated screen plate at the mortar box's end, allowing liberated gold particles to report to downstream recovery processes.
4. Manejo de lodos: The discharged pulp is typically channeled to shaking tables, concentradores centrífugos, or directly to leaching tanks.

Ámbito de aplicación & Limitaciones:
Ideal para: Smalltomedium scale hard rock (veta) gold mining operations; processing centers handling 10100 toneladas por día; regions with reliable access to mechanical power but limited grid infrastructure.
Muy adecuado para: Quartz vein material where gold is finely disseminated and requires thorough liberation.
Limitaciones: Not optimal for highclay or alluvial (placer) deposits; requires consistent ore sizing (<2 pulgadas) para un funcionamiento óptimo; not a standalone solution, must be integrated into a full recovery circuit.

3. CARACTERÍSTICAS PRINCIPALES

Diseño de marco modular | Base técnica: Highstrength steel welded construction with preengineered bolton sections | Beneficio operativo: Simplified transport to remote sites and faster onsite assembly, reducing installation time by up to 40% | Impacto del retorno de la inversión: Lower capital expenditure on site preparation and craneage; quicker commissioning accelerates timetoproduction.

PrecisionMachined Camshaft Assembly | Base técnica: CNCmachined alloy steel camshaft with inductionhardened lobes | Beneficio operativo: Ensures uniform lift and drop timing for all stamps, creating consistent impact energy and grind size distribution | Impacto del retorno de la inversión: Improved liberation yields higher overall recovery rates; reduced vibration extends bearing and frame life.

QuickChange Wear Plate System | Base técnica: Interchangeable manganese steel liners for mortar box base and end screens | Beneficio operativo: Operators can replace highwear components in under 2 hours without disassembling the main frame | Impacto del retorno de la inversión: Minimizes downtime for maintenance; standardized parts inventory reduces operational costs.

Optimized Stamp Shoe Geometry | Base técnica: Computermodeled weight distribution and impact face profile | Beneficio operativo: Maximizes kinetic energy transfer to the ore bed while minimizing wasteful lateral force and component stress | Impacto del retorno de la inversión: Higher throughput per unit of energy consumed (kWh/tonelada); extended shoe service life reduces consumable costs.

Sistema centralizado de lubricación con grasa | Base técnica: Manifold with delivery lines to all major bearing points from a single access port | Beneficio operativo: Permite seguridad, complete lubrication in minutes during scheduled stops, asegurando la protección del rodamiento | Impacto del retorno de la inversión: Previene fallas catastróficas en los rodamientos, a leading cause of extended unplanned downtime in harsh environments.

Variable Speed Drive Option | Base técnica: Integrated frequency controller for the main drive motor | Beneficio operativo: Allows operators to finetamp stroke frequency (stamps per minute) in response to realtime ore hardness variability | Impacto del retorno de la inversión: Maintains target grind size specification across varying feed stock, protecting downstream recovery efficiency.

4. VENTAJAS COMPETITIVAS

| Métrica de rendimiento | Estándar de la industria (Molinos heredados) | Nuestra solución china de molino de sellos | Ventaja (% Mejora) |
| : | : | : | : |
| Disponibilidad (tiempo de actividad)| ~7580%, frequent unscheduled stops| Objetivo >92% con mantenimiento planificado| +15%+ disponibilidad operativa |
| Eficiencia Energética| High inertial load; fixed speed motor| Optimized kinetics; optional VSD| Arriba a 20% reducción en kWh/tonelada |
| Desgaste parte de por vida| Mortar base liners replaced every 46 semanas| Quickchange manganese liners last 812 semanas| +50100% vida útil |
| Consistencia del rendimiento| +/ 15% variance due to feed/ore changes| +/ 5% variance with controlled feed & VSD| ~67% improvement in process stability |
| Tiempo de instalación| Field welding/fitting requiring 1014 días| Modular boltup assembly in 57 días| ~Implementación un 50 % más rápida |

5. ESPECIFICACIONES TÉCNICAS

Gama de modelos & Capacidad: Disponible en 3 sellos (1 TPH), 5estampilla (2 TPH), y 10 sello (4 TPH) configuraciones. Capacities based on quartz ore of medium hardness (<12 kWh/t).
Requisitos de energía: Primary drive motor from 7.5 kilovatios (3estampilla) a 30 kilovatios (10estampilla). Standard 380V/50Hz/3Phase configuration. Options for diesel power takeoff (toma de fuerza) disponible.
Especificaciones de materiales: Marco principal: Acero estructural ASTM A36. Sellos & Zapatos: Highchrome cast iron or forged steel. Usar forros: ASTM A128 Manganese Steel (1114% Minnesota). Árbol de levas: AISI 4140 Alloy Steel.
Dimensiones físicas (5Molino de sello): Operating Footprint: ~3m L x 2m W x 2.8m H. Peso seco: Aproximadamente 4,800 kilos.
Rango de operación ambiental: Diseñado para temperaturas ambiente de 20°C a +50°C. Dust seals standard on all bearings. Corrosionresistant primer and paint system included.

6. ESCENARIOS DE APLICACIÓN

Regional Processing Center Upgrade

Desafío:
A West African processing center using three legacy stamp mills faced excessive downtime from weekly liner changes and erratic grind size affecting cyanide consumption.
Solución:
Replacement with two modernized Chinese stamp mills featuring quickchange wear plates and variable speed drives was implemented during a planned plant overhaul.
Resultados:
Mill availability increased from 76% a más 90%. Combined with more consistent P80 grind size, cyanide consumption was reduced by an average of 18%, leading to a payback period on equipment of under 14 months through reagent savings alone.

New Hard Rock Mine Development

Desafío:
An engineering contractor required a simpletoinstall yet reliable primary grinding solution for a new highgrade quartz vein project with limited initial infrastructure budget.
Solución:
A modular Chinese stamp mill was selected as the core comminution unit due its mechanical simplicity relative to ball mills,and lower installed power demand.The modular design facilitated air transportto the remote site .
Resultados:
The mill was assembledand commissioned within one weekof components arrivingon site .It consistently metthe designed throughputof 1 .8TPH , providing wellliberatedfeedtoa gravity flotation hybridcircuit .The project achievedfirstgold pourwithin its aggressiveproject timeline .

7.CONSIDERACIONES COMERCIALES

Equipment pricing is tiered basedonstamp configurationandfeature level :
• Base Model(Servicio estándar):Includescoreframe ,conducir ,andstandardliners .
• Performance Model(Servicio pesado):Upgradedto manganese steelwearpartsacrosstheentiremortar box ,centralizedlubrication ,andheavierdutybearings .
• Premium Model(Full Control):Addsvariable speeddrive(VSD),automatedgreasesystem ,andextendedinstrumentationpackage .

Características opcionales :
• Dieselengineormotor mountadaptorkits .
• Integratedfeedhopperswithvibratoryorfederbeltoptions .
• Sparepartskits( recommendedforfirst12monthsofoperation).

Paquetes de servicios :
• Puesta en servicio&Capacitación del Operador:A twoweekonsiteservice .
• AnnualInspection&PreventiveMaintenanceContract .
• RemoteTechnicalSupportvia dedicatedchannel .

Financiación :
Flexiblecommercialtermsareavailableforqualifiedbuyers ,includingdirectpurchase ,leasetoownagreements ,andprojectbasedfinancingthroughpartner institutions .

8.Preguntas frecuentes

q:What isthetypicalleadtimefora Chinese stamp mill ?
A :Standardmodelsaretypicallyavailableforexpeditedshipmentwithin 8 10weeksfromorderconfirmation .Customconfigurationsmayrequire 12 14semanas .

q:Canyourstampmillintegratewithourexistingorefeedsystem ?
A :Yes .Themillisdesignedwithastandardizedfeedhopperinterface .Our engineeringteamcanreviewyourcurrentlayouttoprovidespecificintegrationdrawingsandrecommendations .

q:Whatistheexpectedservicelifeforthemainstructuralcomponents ?
A :Themainframeandcamshaftassemblyareengineeredforaminimumservice lifeof 15yearsundernormaloperatingconditions ,subjecttoproper maintenance .

q:Doyouprovidegrindingtestservicesforspecificorematerial ?
A :Whilewedonotoperateatestplant ,weprovidedetailedtechnicaldatasheetsbasedonquartzoremilling .Forcomplexores ,we recommendpartneringwithametallurgicallabforbenchscaletestingto determineoptimalmillparameters .

q:¿Cuál es la estructura de garantía? ?
A :We offera standard 12 monthwarrantyagainstdefectsinmaterialand workmanshipfromthedateofcommissioning .Extendedwarrantyoptions areavailablewithapreventivemaintenancecontract .

q:Aretrainingmaterialsprovidedforouroperators ?
A :Yes .Comprehensiveoperationandsafety manualsareprovidedindigitalandhardcopyformat .Onsite trainingduringcommissioningisstronglyrecommendedandincludedinourservicepackages .

q:Howsensitiveisthemilltofluctuationsinoresizeorhardness ?
A :Themillisrobusttominorfluctuations .For significantvariability( p.ej., switchingbetweenoxidizedandsulphidematerial ),theoptionalvariablespeeddrive(VSD )isrecommendedtoallowoperatorsto adjuststrokefrequencytomaintaintargetgrind sizewithoutmechanicalchanges