1. PAINPOINT DRIVEN OPENING

Is your gold processing operation losing profitability to inefficient primary crushing? The bottleneck at this first stage ripples through your entire circuit, impacting recovery rates and bottomline revenue. Common challenges with suboptimal gold ore crushing equipment include:

High Downtime for Maintenance: Frequent liner changes and unplanned repairs on abrasive gold ores (particularly those with high quartz content) halt your milling circuit, costing thousands per hour in lost production.
Inconsistent Feed Size Reduction: Poorly calibrated or worn crushers produce a nonuniform product size. This overloads downstream grinding mills, increasing specific energy consumption (kWh/ton) and reducing overall throughput.
Premature Component Failure: Standard manganese steel wear parts can degrade rapidly under highimpact, highabrasion conditions of hard rock gold ores, leading to excessive spare parts inventory costs and labor.
Gold Loss Potential in FreeMilling Ores: Inefficient crushing that generates excessive fines can complicate gravity recovery circuits or lead to dusting and physical loss of fine gold particles before leaching.

Are you evaluating equipment that can deliver consistent throughput, reduce operating costs per ton, and protect your valuable mineralbearing feed? The right primary crusher is not just a purchase; it’s a strategic investment in plantwide efficiency.

2. PRODUCT OVERVIEW

Our private label Gold Ore Crushing Equipment is engineered as heavyduty, highcapacity primary jaw crushers specifically configured for the demanding environment of runofmine (ROM) gold ore processing. This equipment serves as the first critical stage in comminution, setting the foundation for optimal recovery.

Operational Workflow:
1. ROM ore is fed via grizzly or apron feeder into the crusher’s robust vibrating grizzly feeder (VGF) section, which scalps out fine material to bypass the crush chamber.
2. Oversize material enters the deep crushing chamber where a powerful elliptical motion jaw crushes material against a fixed jaw.
3. Crushed product discharges onto the main plant conveyor at a preset closedside setting (CSS), typically between 100mm to 150mm for primary stage output.
4. The VGF undercrusher conveyor carries both scalped fines and crushed product for combined transport to the next processing stage.

Application Scope & Limitations:
Scope: Ideal for hard and abrasive gold ores (e.g., quartz veins), largescale mining operations requiring high availability (>90%), and plants where consistent feed size to SAG/Ball mills is critical.
Limitations: Not designed as a standalone solution for alluvial or placer deposits requiring scrubbing/washing. Maximum feed size is limited by model dimensions; extremely sticky or clayrich ores may require preprocessing.

3. CORE FEATURES

HeavyDuty Frame & StressRelieved Design | Technical Basis: Finite Element Analysis (FEA) optimized steel fabrication | Operational Benefit: Eliminates frame fatigue cracking under cyclical loading, ensuring structural integrity over a 20+ year service life | ROI Impact: Reduces risk of catastrophic frame failure and associated monthslong downtime, protecting capital investment.

Quenched & Tempered Alloy Steel Jaw Dies | Technical Basis: Proprietary heattreatment process creating a hardened exterior with a tough, shockabsorbing core | Operational Benefit: Provides exceptional resistance to abrasion from quartz while maintaining impact strength to handle tramp metal events | ROI Impact: Extends liner life by an average of 3040%, decreasing costperton for wear parts and liner changeout frequency.

Aggressive Elliptical Crushing Motion | Technical Basis: Highstroke eccentric shaft design that delivers higher inertia at the top of the chamber | Operational Benefit: Promotes faster nipangle reduction and efficient breaking of slabby material on first pass, increasing throughput capacity | ROI Impact: Achieves target tonnage with fewer operational hours or allows processing higher volumes within existing shifts.

Hydraulic Adjustment & Clearing System | Technical Basis: Integrated hydraulic cylinders for CSS adjustment and uncrushable material release | Operational Benefit: Enables quick, precise product size changes without manual shims. Automatically releases tramp iron, minimizing risk of severe damage | ROI Impact: Reduces adjustment downtime from hours to minutes and prevents costly incidents like bent shafts or broken toggle plates.

Integrated Vibrating Grizzly Feeder (VGF) | Technical Basis: Bolton heavyduty VBF with adjustable grizzly bars powered by twin eccentric shaft vibrators | Operational Benefit: Removes fines prior to crushing, reducing chamber wear and power consumption while improving overall efficiency | ROI Impact: Lowers energy use per ton processed by diverting up to 20% of feed volume away from the crusher mechanism.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard Benchmark | Our Gold Ore Crushing Solution Documented Advantage |
| : | : | : |
| Mechanical Availability (A_o) | ~88% 91% >95% +47% improvement |
| Liner Life in HighSiO₂ Ore (Hours) ~600 800 hours ~1000 1100 hours +3540% improvement |
| Throughput Capacity (tph) for Equivalent CSS Rated Capacity +510% higher throughput +510% improvement |
| Specific Energy Consumption (kWh/t) Baseline 812% lower consumption 812% improvement |

5. TECHNICAL SPECIFICATIONS

Model Range & Capacity: Available in three primary sizes with capacities from 500 TPH to 1,800 TPH at a CSS of 150mm.
Power Requirements: Main crusher drive powered by 150 kW to 400 kW electric motors; VBF drive requires separate 3075 kW motor. All compliant with IEC standards.
Material Specifications: Highgrade steel plate frame (ASTM A36); Eccentric shaft forged from EN24/4340 steel; Jaw dies manufactured from modified Mn18Cr2 alloy.
Physical Dimensions: Feed opening ranges from 1200mm x 800mm to 1600mm x 2000mm. Total installed weight between 45,000 kg to 120,000 kg.
Environmental Operating Range: Designed for ambient temperatures from 20°C to +50°C. Dust sealing kits available for arid environments; corrosionresistant coatings standard for humid/saline conditions.

6. APPLICATION SCENARIOS

Hard Rock Underground Mine Expansion Challenge A midtier gold miner needed to increase plant throughput by 25% but was constrained by their existing primary crushing circuit's frequent downtime and inability to handle harder newlyexposed ore zones.Solution Installation of our midrange Gold Ore Crushing Equipment with enhanced jaw kinematics and heavyduty bearings.Solution Installation of our midrange Gold Ore Crushing Equipment with enhanced jaw kinematics and heavyduty bearings Results Achieved sustained throughput increase of28%. Mechanical availability improved from86.%to94.% reducing total monthly delay hours by65%.

Heap Leach Operation Optimization Challenge An openpit heap leach operation faced high costs from contractor mobile crushing inconsistent product sizing(which affected percolation)and excessive liner wear on their rented equipment.Solution Commissioning of a dedicated stationary primary jaw crusher configured specifically for their oxide ore.Solution Commissioning of a dedicated stationary primary jaw crusher configured specifically for their oxide ore Results Brought crushing inhouse eliminating contractor margins Product PSD consistency improved yielding more uniform leaching cycles Liner replacement intervals extended by50%.payback period calculated at18 months

7 COMMERCIAL CONSIDERATIONS

Equipment pricing is tiered based on capacity model sizeand levelofonboard automationStandard models include basic PLC controlsfor start/stopand monitoring Optional features include advanced condition monitoring sensors automated lubrication systemsand wear part inventory packages Service packages are offeredfrom basic commissioningand operator trainingto comprehensive annual maintenance planswith guaranteed response times Financing options including leaseto owncapital equipment loansand rentalpurchase agreements are availableto alignwith project cash flow requirements

8 FAQ

Q What if my ore characteristics change overthe mine life
A The hydraulic adjustment system allows youto modifythe closed side setting quicklyto adaptto changing ore hardnessor required product size maintaining circuit balance

Q How does this equipment interfacewith my existing conveyingand screening plant
A Our engineering team providesfull interface documentation including chute designs load dataand electrical connection specificationsfor integrationbyyour contractor

Q Whatisthe expected delivery lead timefora standard model
A Lead times varybasedon model specification Current lead times range from26to36weeksfrom order placementwith expedited options potentially available

Q Are performance guarantees offered
A Yes we offer guaranteed minimum throughput capacityand mechanical availability basedon agreed feed material characteristicsas partofour commercial proposal

Q What trainingis providedfor our maintenance crew
A We provide comprehensive onsite training covering routine maintenance procedures troubleshooting guidesand safe liner change out protocols Documentation includes detailed part manuals