1. PAINPOINT DRIVEN OPENING

Are you managing gold recovery operations burdened by inconsistent throughput, excessive maintenance costs, and unpredictable final grind? The limitations of your comminution circuit directly impact your bottom line. Consider these common challenges:
High Operational Downtime: Frequent liner changes and bearing failures in your stamp mill halt production for days, costing thousands in lost recovery per hour.
Inconsistent Particle Size: Poorly calibrated stamps or worn components yield uneven ore fragmentation, reducing cyanidation efficiency and gold recovery rates.
Excessive Energy & Labor Costs: Older, inefficient stamp mill designs consume disproportionate power per ton processed and require constant manual monitoring and adjustment.
Scalability Limitations: Rigid, singlecapacity mills cannot adapt to fluctuating ore grades or feed rates without major capital investment.

How do you achieve reliable, costperton crushing for midscale operations while maintaining the simplicity and durability the stamp mill principle is known for? The solution requires a modern reengineering of this proven technology.

2. PRODUCT OVERVIEW

Our Private Label Stamp Mill is a modernized, heavyduty gravityimpact crushing machine designed for the continuous reduction of goldbearing quartz ore to liberate values for subsequent recovery processes. It is engineered for mediumcapacity operations (1100 TPD) where operational simplicity, ruggedness, and low technical overhead are critical.

Operational Workflow:
1. Feed: Sized ore (typically 2" to +1/2") is continuously fed into a robust mortar box.
2. Crushing: Mechanically lifted stamps (46 per mill) are sequentially dropped onto the ore bed, applying repeated highimpact force.
3. Classification & Discharge: Crushed material passes through a perforated discharge diaphragm; oversize material is retained for further impact while liberated fines are washed into collection sluices.

Application Scope & Limitations:
Ideal For: Vein material free milling gold ores, pilot plants, smalltomedium scale mining operations, and regions with limited access to complex technical support.
Limitations: Not suitable for wet, sticky clays or highly abrasive ores without prior screening. Requires a consistent feed size for optimal operation. Primary crushing to 2" is a prerequisite.

3. CORE FEATURES

Modular Mortar Box Design | Technical Basis: Segmented highchrome iron castings with interlocking seals | Operational Benefit: Enables replacement of individual wear sections instead of the entire box, reducing part cost and downtime by up to 70% | ROI Impact: Lowers longterm maintenance inventory costs and extends major overhaul intervals.

Precision Camshaft & Lifter System | Technical Basis: CNCmachined alloy steel camshaft with regulated lift height (adjustable 610 inches) | Operational Benefit: Provides consistent impact energy and allows operators to finetune crush intensity based on ore hardness | ROI Impact: Optimizes power consumption per ton and improves overall liberation yield.

Centralized Grease Lubrication Manifold | Technical Basis: Automated, programmable lubrication points at all major bearings and pivot points | Operational Benefit: Eliminates manual greasing errors, ensures optimal bearing life, and reduces daily operator intervention time | ROI Impact: Prevents catastrophic bearing failure, a leading cause of unscheduled stoppages.

HeavyDuty Discharge Diaphragm | Technical Basis: Lasercut steel plate with replaceable urethane sizing screens | Operational Benefit: Maintains consistent product sizing; urethane dampens noise and resists blinding compared to steelonly designs | ROI Impact: Improves downstream recovery efficiency by providing a more uniform feed to concentration tables or leaching circuits.

VFDDriven Motor Configuration | Technical Basis: Variable Frequency Drive coupled with a hightorque electric motor | Operational Benefit: Allows softstart capability to reduce mechanical stress and permits stamp speed adjustment (60100 drops/minute) for process optimization | ROI Impact: Reduces peak electrical demand charges and component wear during startup cycles.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard (Legacy Stamp Mills) | Our Private Label Stamp Mill Solution | Advantage (% Improvement) |
| : | : | : | : |
| Liner Change Downtime | 1624 hours (full box replacement) | 46 hours (modular section swap) | 75% faster |
| Energy Consumption (kWh/ton)| ~5.5 kWh/ton (fixed speed motor) | ~4.2 kWh/ton (VFD optimized operation)| 24% reduction |
| Mean Time Between Failure (Main Bearings)| ~2,000 operating hours | ~3,500 operating hours (with automated lube) | 75% increase |
| Product Size Consistency (+/ target mesh)| High variance due to wear/warping| Consistent output maintained via adjustable lift & diaphragm control| Field data shows 40% less variance |

5. TECHNICAL SPECIFICATIONS

Model Range Capacity: 1 Ton Per Day (TPD), 5 TPD, 20 TPD standard configurations.
Power Requirements: Dependent on model. Example (20 TPD): 30 kW main drive motor with VFD controller; 400V/50Hz or custom voltage/frequency available.
Material Specifications: Mortar Box Liners – HighChrome Cast Iron (500 BHN); Stamps – Forged Steel Heads with Manganese Steel Shoes; Frame – Fabricated ASTM A36 Steel.
Physical Dimensions (20 TPD Model): Approx. Length: 3.5m x Width: 2.2m x Height: 2.8m; Weight: ~8,500 kg.
Environmental Operating Range: Designed for ambient temperatures from 10°C to +45°C; dust seals standard; optional enclosures for extreme environments.

6. APPLICATION SCENARIOS

Artisanal & SmallScale Mining (ASM) Cooperative Upgrade Challenge:

A cooperative was using manually operated triphammers resulting in low throughput (<0.5 TPD), high labor fatigue, and poor gold recovery due to inconsistent grinding.

Solution:

Implementation of two semiautomated 5 TPD private label stamp mills with integrated feed hoppers and simple discharge sluices.

Results:

Throughput increased to a combined 910 TPD with two operators. Consistent grinding improved gravity recovery by an estimated 15%, paying back the equipment investment in under 8 months of seasonal operation.

Pilot Plant & Bulk Sampling Operation Challenge:

An exploration company needed reliable batch crushing of varied hard rock samples from different zones but found jaw crusher/cone crusher combos too costly and complex for remote site deployment.

Solution:

Deployment of a single containerized 1 TPD private label stamp mill unit with a builtin generator set and sample collection system.

Results:

The unit processed over 500 individual batch samples with minimal mechanical issues. The simplicity of the system allowed field geologists to operate it after basic training, providing homogenized 20 mesh material ready for fire assay at a significantly lower operational cost than portable rotary crushers.

7. COMMERCIAL CONSIDERATIONS

Pricing Tiers: Pricing is structured by capacity rating (TPD). Entrylevel models provide core functionality; midrange models include features like VFD drives; premium packages offer full automation controls and containerized plugandplay modules.
Optional Features: Feed rate vibratory feeders; integrated amalgamation plates; water recycling systems; full acoustic enclosures; remote monitoring sensors for vibration & temperature.
Service Packages: Tiered offerings include Basic Warranty (12 months parts), Extended Service Plans covering scheduled maintenance, or FullSite Support contracts including annual inspections and operator training refreshers.
Financing Options: Available through partner financial institutions including equipment leasing structures tailored to mining cash flow cycles or milestonebased project financing.

8.FAQ

Q1: Is this private label stamp mill compatible with our existing gravity concentration circuit?
Yes. The mill is designed as a dropin replacement or supplement within classic gravity flowsheets. It produces a similar product size range as traditional stamps but with greater consistency which benefits downstream tables or centrifugal concentrators.

Q2:What is the expected operational impact on our current manpower?
Field data shows that mills equipped with centralized lubrication reduce daily operator attention by approximately one hour per shift compared to manually lubricated legacy mills.The goal is not headcount reduction but enabling your team to focus on process optimization rather than routine maintenance.

Q3:What are the key commercial terms regarding delivery lead time?
Standard model lead times range from XY weeks exworks depending on configuration.Customizations will extend this timeline.FOB Incoterms are standard.CIF/DAP quotations are provided upon request based on destination port/site location.All pricing includes basic commissioning documentation

Q4:What level of foundation preparation is required?
The mill requires a solid level concrete pad capable of supporting its dynamic operating weight.Specific foundation drawings including bolt patterns anchor loads are provided upon order confirmation.Simpler foundations than those required for rotary mills are typically sufficient

Q5:What training do you provide?
A comprehensive digital operation maintenance manual video library detailing setup routine checks troubleshooting procedures are supplied.For larger orders we recommend an optional onsite commissioning package which includes handson training

Q6:What happens if we need spare parts quickly?
We maintain strategic inventories critical wear components such as liners camshaft segments diaphragms Our logistics partners can expedite shipment globally Standard parts dispatch occurs within Z business days after order confirmation