1. PAINPOINT DRIVEN OPENING

Are unreliable batch processing and inconsistent liberation rates limiting your gold recovery and inflating operational costs? Manual sampling and smallscale testing often fail to accurately predict fullplant performance, leading to costly design flaws and underperforming circuits. The financial risks are substantial: misjudged grind sizes can result in 1025% unrecovered gold, while unplanned downtime for circuit adjustments halts revenue.

How can your operation derisk process design and optimize recovery before committing capital to fullscale equipment? How do you generate accurate, scalable metallurgical data without the exorbitant cost and time of a pilot plant? The solution requires a robust, industrialgrade testing system that delivers reliable, repeatable data under controlled conditions.

2. PRODUCT OVERVIEW

The White Label Stamp Mill is a heavyduty, modular crushing and grinding apparatus engineered for continuous duty mineral liberation testing. It is designed for mining engineers, metallurgists, and plant managers to conduct definitive ore characterization and process optimization for goldbearing deposits.

Operational Workflow:
1. Feed Preparation: Crushed ore sample (typically 1/2") is introduced into the feed hopper.
2. Controlled Comminution: The mechanized cam shaft lifts and drops weighted stamps onto the ore within a hardened steel mortar box, simulating traditional stamp mill action with precise control.
3. Continuous Discharge: Pulverized material passes through a replaceable discharge screen, ensuring a consistent target particle size.
4. Slurry Collection & Analysis: The discharged slurry is collected for downstream analysis, including gravity concentration, cyanidation leach tests, or assaying.
5. Data Compilation: Throughput rates, energy consumption per ton, and liberation data are recorded to inform fullscale mill selection and circuit design.

Application Scope & Limitations:
Scope: Ideal for freemilling gold ores, sulphide ore testing (precyanidation), continuous gravity recoverable gold (GRG) testwork, and comminution circuit modeling. Serves as a critical step between labscale jaw crushing/batch grinding and full pilot plants.
Limitations: Not designed for primary crushing of large ROM material or for processing ultraabrasive ores without scheduled liner maintenance. Requires a controlled feed size distribution for optimal performance.

3. CORE FEATURES

Modular Duty Frame | Technical Basis: Highstiffness steel construction with vibrationdampening mounts | Operational Benefit: Eliminates frame walk and maintains precise stamp alignment during continuous operation, ensuring test consistency | ROI Impact: Reduces retesting due to mechanical variance by an estimated 15%, protecting project timelines

Precision WeightAdjustable Stamps | Technical Basis: Individually configurable stamp weights (125250 lbs) via bolton segments | Operational Benefit: Operators can simulate specific energy inputs (kWhr/ton) to match target comminution circuits | ROI Impact: Enables precise energy optimization before plant buildout, potentially reducing future operating costs by 812%

Hardened Alloy Mortar & Discharge System | Technical Basis: ASTM A532 Class III Type NiHard iron liners with programmable wash water injection | Operational Benefit: Provides extended service life under abrasive conditions and prevents screen blinding for steadystate operation | ROI Impact: Lowers consumable cost per test ton by up to 30% compared to standard manganese steel

PLCAutomated Cycle Control | Technical Basis: Programmable Logic Controller managing stamp cadence (30100 drops/minute) and runtime | Operational Benefit: Enables unattended operation for multihour durability tests and ensures perfect repeatability between test batches | ROI Impact: Frees skilled personnel for analytical work, increasing lab throughput by over 40%

Integrated Data Acquisition Ports | Technical Basis: Sensorready ports for power monitoring, feed rate measurement, and slurry density tracking | Operational Benefit: Delivers realtime, correlated data on throughput and specific energy consumption directly to a laptop | ROI Impact: Creates defensible engineering reports faster, accelerating feasibility study completion

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard (Manual/Batch Test Mills) | White Label Stamp Mill Solution | Advantage (% improvement) |
| : | : | : | : |
| Test Data Consistency | High variance due to manual operation & feed inconsistency | PLCcontrolled parameters ensure identical mechanical action between runs. Field data shows <5% variance in product P80. |
| Operational Uptime Frequent stops for manual feeding/sampling; ~65% utilization during test hours.| Continuous feed hopper & automated cycle allows >90% utilization during programmed tests.| ~38% more productive test hours |
| Specific Energy Calibration| Estimated based on batch time; difficult to correlate to industrial mills.| Direct kWhr/ton measurement via integrated power sensors provides plantready data.| Correlation accuracy improved by ~70% |
| Sample Throughput| Typically 2050 kg per shift depending on target grind.| Steadystate processing of 150300 kg per shift achievable.| Throughput increased by 200400% |

5. TECHNICAL SPECIFICATIONS

Capacity Rating: Continuous throughput of 2040 kg/hr depending on ore hardness and target grind size (typically 20 to 100 mesh).
Power Requirements: 7.5 kW (10 HP) main drive motor; 400V/50Hz or 460V/60Hz threephase power.
Material Specifications: Mortar box liners are NiHard Iron (600 BHN). Stamps are highcarbon steel bodies with interchangeable cast iron heads. Frame is fabricated from 10mm structural steel.
Physical Dimensions: Length: 2.2m; Width: 1.5m; Height: 1.8m; Approximate Weight: 1,800 kg.
Environmental Operating Range: Designed for indoor lab or sheltered outdoor installation. Operating ambient temperature range: 5°C to 40°C.

6. APPLICATION SCENARIOS

Junior Mining Exploration Company | Challenge: Required bankable metallurgical data for a new freemilling gold zone but lacked budget for a full pilot plant campaign.| Solution:: Implemented a White Label Stamp Mill test program to process three tonnes of representative core samples at varying grind sizes.| Results:: Generated definitive recovery curves and optimal grind size data for the feasibility study at less than onethird the cost of a pilot plant., securing project financing.

Established Gold Processing Plant || Challenge:: Gravity circuit recovery was declining; suspected incomplete liberation at current ball mill grind size but changing it was a highrisk operational decision.| Solution:: Used the onsite White Label Stamp Mill to test incremental grind sizes on current runofmine ore without disrupting the main plant.| Results:: Identified a +15% gravity recoverable gold improvement at a slightly finer grind., justifying a controlled mill adjustment that increased monthly revenue by an estimated $150k.

7 COMMERCIAL CONSIDERATIONS

Pricing Tiers:
Base Unit includes PLC control adjustable stamps standard mortar/screen kit
Premium Package adds integrated belt feeder automated wash water system basic data logging sensors
Enterprise Suite includes full sensor suite calibration services extended wear liner kit
Optional Features include dust enclosure slurry pump package advanced process control software
Service Packages range from basic commissioning support up through annual maintenance contracts with guaranteed parts availability within hours
Financing Options include equipment leasing capital expenditure financing or rentalto own structures tailored

FAQ

What feed size does the White Label Stamp Mill require?
The unit is designedfor secondary crushing product Optimal feed is ½ inch material from alab jaw crusher Consistent feed sizing is criticalfor achieving reliable andrepeatable throughputdata

How does the data from this stamp mill scale uptoa full ball mill or industrial stamp battery?
The unit provides direct measurements of specific energy consumption(kW hr ton)and liberation performanceat controlledgrind sizes These are key scaling parameters Industry practice uses this datain conjunctionwith Bond Work Index values tomodelfull scale mill power drawand sizingwith high confidence

Can it handle sulphide oresor only free millinggold?
It is well suitedfor sulphide ore testing particularlyfor pre cyanidationgrind optimization The abrasion resistant linershandle moderate sulphide content For highly abrasiveor complex ores we recommenddiscussingyour specificore characteristicsfor aliner material recommendation

Whatisthe typical lead timefrom orderto commissioning?
For standard units lead timeis weeks Custom configurations may require weeks dependingon specifications All units include comprehensive commissioning supportby aveteran field technician

Do you offerrental ortrial optionsfor short termproject work?
Yes we offer short termrental agreements formonthly quarters These includefull technical supportand are often utilizedfor definedsite investigation programsor annual plant process audits