1. ABERTURA ACIONADA POR PAINPOINT

Are your gold recovery operations constrained by inconsistent throughput, excessive energy consumption per ton, and unplanned maintenance halting your entire milling circuit? Legacy crushing and grinding methods often lead to suboptimal mineral liberation, directly impacting your overall recovery rate and profitability. Consider these critical challenges:
Throughput Bottlenecks: Can your primary crushing stage keep pace with mine output, or does it create a costly backlog?
Altos custos operacionais: Are you facing escalating expenses from manual feeding, desgaste excessivo do revestimento, and inefficient power use in the comminution process?
Tempo de inatividade não planejado: How often do mechanical failures or lengthy maintenance procedures on key components stop your processing plant?
Recivery Inefficiency: Is incomplete liberation of gold from host rock during the initial grinding phase limiting the effectiveness of your downstream concentration processes?

Addressing these issues requires a robust, reliable primary reduction technology. The right equipment forms the foundation of an efficient mineral processing workflow.

2. VISÃO GERAL DO PRODUTO: HeavyDuty Stamp Mill for Primary Gold Ore Processing

A modern heavyduty stamp mill is a mechanized crushing system designed for the primary reduction of goldbearing quartz ore and other hard rock materials. It functions as a foundational piece in gravityrecovery circuits, often deployed in remote or smallerscale operations where simplicity and durability are paramount.

Fluxo de Trabalho Operacional:
1. Introdução ao feed: Runofmine (ROM) ore is fed into a robust steel mortar box.
2. Percussão Cíclica: Mechanically lifted heavy stamps (sapato) are dropped onto the ore bed in a controlled, alternating sequence.
3. Redução de Partículas: The repeated impact fractures the quartz matrix, progressively liberating gold particles.
4. Descarga de lama: Crushed material is washed through a perforated screen plate at the mortar box discharge with a controlled water flow, creating a slurry for downstream concentration.

Escopo de aplicação & Limitações:
Ideal para: Primary crushing of freemilling gold ores hosted in quartz veins; small to mediumscale operations; regions with limited grid power favoring mechanical drives; operations prioritizing operational simplicity and high durability.
Considerações: Less energyefficient per ton than modern jaw/cone crushers for very highvolume applications; generates more fines which may not be optimal for certain leaching processes; requires a consistent ore feed size.

3. RECURSOS PRINCIPAIS

Modular Stamp Assembly | Base Técnica: Independent, replaceable cast manganese steel shoes and stems | Benefício Operacional: Individual stamps can be serviced or replaced without shutting down the entire mill bank, minimizando o tempo de inatividade. | Impacto do ROI: Reduces planned maintenance windows by up to 60%, aumentando as horas de operação anuais.

Regulated Drop Height & Cadence | Base Técnica: Precision camshaft or hydraulic lift mechanism with adjustable timing | Benefício Operacional: Provides consistent impact energy for uniform particle size distribution and protects the frame from shock loads. | Impacto do ROI: Improves grind consistency for better downstream recovery by an average of 58% and extends structural component life.

HardFaced Screen Plate System | Base Técnica: Replaceable alloy steel screens with abrasionresistant weld overlay | Benefício Operacional: Maintains precise aperture size longer under abrasive conditions, ensuring proper slurry density control. | Impacto do ROI: Reduces screen changeout frequency by 40%, lowering parts inventory costs and labor requirements.

Centralized Grease Lubrication | Base Técnica: Automated manifold delivering grease to all major bearing points on the camshaft and lifters | Benefício Operacional: Elimina pontos de lubrificação manual, ensuring critical components are protected from dust ingress and wear. | Impacto do ROI: Decreases bearingrelated failures by over 70%, a leading cause of unplanned stoppages.

Reinforced Mortar Box Design | Base Técnica: Singlepiece cast or heavily ribbed fabricated steel construction with replaceable liners | Benefício Operacional: Withstands continuous highimpact loads without fatigue cracking or deformation. | Impacto do ROI: Avoids catastrophic structural failure; liner replacement is a straightforward scheduled task versus major repair.

Variable Drive Options | Base Técnica: Configurable for diesel engine, motor elétrico, or even waterwheel drive systems | Benefício Operacional: Enables deployment in any operational environment regardless of local infrastructure. | Impacto do ROI: Provides flexibility in site planning and allows for adaptation to changing energy cost structures.

4. VANTAGENS COMPETITIVAS

| Métrica de desempenho | Padrão da Indústria (Fábrica de carimbos herdada) | Modern HeavyDuty Stamp Mill Solution | Vantagem (% Melhoria) |
| : | : | : | : |
| Disponibilidade Mecânica | ~8085% (frequent bearing/cam failures) |> 94% (sealed lubrication, robust framing) |> 10% increase in runtime |
| Liner/Shoe Wear Life| 500 700 horário de funcionamento| 900 1,200 horário de funcionamento (premium alloys)| Até 80% vida útil mais longa |
| Consistência de rendimento| +/ 15% variance due to manual feed & wear| +/ 5% variance (regulated feed & drop)| ~67% improvement in circuit stability |
| Energy per Ton Crushed| Mais alto (inefficient drives, friction losses)| Mais baixo (optimized mechanical advantage)| Os dados de campo mostram 1520% redução |
| Tolerância ao metal vagabundo| Low risk of catastrophic damage from feeders| High tolerance due to gravitydrop action| Eliminates risk of crusher jamming/breakage |

5. ESPECIFICAÇÕES TÉCNICAS

Classificação de capacidade: Configurável de 1 para 10 tons per hour per stamp bank, based on ore hardness and target grind size.
Requisitos de energia: Options for 3075 kW electric motor drives or equivalent mechanical horsepower from diesel engines.
Especificações de materiais: Key wear components (stamps/shoes, screen plates, forros) fabricated from highgrade manganese steel (ASTM A128) or chromium carbide overlay alloys.
Dimensões Físicas (Unidade 5Stamp típica): Operating footprint of approximately 4m x 8m; total weight between 1525 metric tons depending on configuration.
Faixa operacional ambiental: Designed for operation in ambient temperatures from 20°C to +50°C; enclosed bearing systems protect against dust and moisture ingress.

6. CENÁRIOS DE APLICAÇÃO

SmallScale Hard Rock Mine Expansion

Desafio: A growing operation using manual hammer mills faced severe throughput limitations (6 tph with two operators. Plant availability rose by >30%, leading to a calculated payback period on equipment of under 14 months based on increased gold production.

Artesanal & Mineração em pequena escala (ASM) Formalization Project

Desafio: A cooperative needed to replace dozens of hazardous, inefficient manuallyoperated Chilean mills with a centralized,
safer,
and more environmentally controlled processing solution.
Solução:
Instalação
of two parallel
5stamp mills
with integrated water recirculation
and controlled discharge points.
Resultados:
Gold recovery rates improved from an estimated 65%.
The contained system reduced environmental impact
and provided
a safer,
monitorable production hub,
meeting regulatory standards for formalization.

7.CONSIDERAÇÕES COMERCIAIS

Equipment pricing tiers are typically structured around stamp bank capacity
and drive configuration:

Camada de Unidade Base:
Includes core stamp mill frame,
stamp assembly,
standard drive motor,
and basic controls.Pricing is capacitydependent.

Nível Premium:
Adds features like automated grease systems,
variable speed drive control,
hardfaced liners as standard,
and integrated safety guarding.

Recursos opcionais:
Dust suppression shrouds,
belt feeder systems for automated feed control,
kits de peças de reposição,
and advanced instrumentation packages are available à la carte.

Pacotes de serviços:
Garantias estendidas(23 anos),
annual inspection contracts,
and operator training programs are offered to ensure longterm performance.Financing options including leasing arrangements
or milestonebased payment plans can be structured through partner institutions to facilitate capital expenditure planning

8.Perguntas frequentes

P:What is the maximum feed size for your stamp mills?
UM:The recommended maximum feed size is 6 polegada(150milímetros)
runofmine ore.Consistent sizing prevents bridging in the mortar box
and optimizes impact efficiency

Q Can this equipment integrate into an existing cyanidation circuit?
A Yes.Modern stamp mills provide excellent liberation for freemilling ores.The resulting slurry can be fed directly to agitation tanks or require simple classification first.Circuit design review is recommended

Q How does operational noise compare to jaw crushers?
A Stamp mills generate repetitive impact noise which can be significant.Appropriate siting perimeter fencing
and optional acoustic shrouding are important considerations during plant layout

Q What is the typical installation timeline?
A For a skidmounted unit with prepared foundations mechanical installation can be completed within57 days.Electrical tiein
and commissioning require additional time based on site conditions

Q As peças sobressalentes estão prontamente disponíveis?
A We maintain strategic inventories of all highwear components including shoes stems cams
and screen plates.Guaranteed dispatch of critical spares occurs within48 hours under our premium service plan

Q What training do you provide for operators?
A We include comprehensive onsite training covering safe operation routine maintenance checks troubleshooting procedures
and basic component replacement.This ensures your team achieves rated performance quickly