1. PAINPOINT DRIVEN OPENING

Are your gold processing operations constrained by inefficient primary crushing? The bottleneck at this initial stage ripples through your entire plant, directly impacting throughput and profitability. Common challenges include:

Excessive Downtime: Frequent liner changes and unplanned maintenance on underengineered crushers halt your milling circuit, costing thousands per hour in lost production.
Inconsistent Feed Size: Poorly fragmented ore from primary crushing leads to erratic feed for your SAG or ball mills, reducing grinding efficiency and increasing specific energy consumption.
High Operational Costs: Premature wear on crusher components due to abrasive gold ore quartz content drives up your costperton for replacement parts and labor.
Capacity Limitations: An aging or incorrectly specified primary crusher cannot keep pace with increased mine output or highergrade ore, capping your plant’s revenue potential.
Material Handling Issues: Crushers that cannot effectively handle sticky feed or occasional oversize material cause plugging and require hazardous manual intervention.

Is your primary crushing circuit a reliable asset or a recurring liability? The right heavyduty gold ore crushing equipment is not an expense; it is the critical foundation for predictable, lowcost tonnage to your leaching or gravity circuits.

2. PRODUCT OVERVIEW

This product line encompasses heavyduty, stationary primary jaw crushers engineered specifically for the rigorous demands of runofmine (ROM) gold ore processing. These machines are designed as the first mechanical reduction stage, transforming blasted ore into a consistent, manageable product for downstream milling.

Operational Workflow:
1. ROM gold ore is fed via dump truck or loader into the crusher’s vibrating grizzly feeder (VGF).
2. The VGF removes natural fines and directs oversize material into the robust crushing chamber.
3. A highinertia flywheel and optimized kinematics drive a massive jaw plate to compress and fracture the ore against a stationary jaw.
4. Crushed material discharges onto the main product conveyor at a predetermined closedside setting (CSS), typically between 150mm and 200mm (6" to 8").
5. The consistent product is conveyed for further secondary crushing or direct feed to a SAG mill.

Application Scope & Limitations:
Scope: Ideal for hard, abrasive gold ores hosted in quartz, greenstone, or granitic formations. Suited for hightonnage operations requiring reliable, continuous duty performance.
Limitations: Not designed as a standalone solution for final product sizing. Requires integration with a feeding system and downstream conveying. Maximum feed size is defined by model selection; extremely slabby feed may require prior rock breaking.

3. CORE FEATURES

Modular Jaw Design | Technical Basis: Bolton cheek and jaw plates with multiple mounting points | Operational Benefit: Enables partial liner replacement and reduces changeout downtime by up to 40% compared to welded designs | ROI Impact: Lower labor costs and increased crusher availability directly boost annual throughput.

Hydraulic Toggle & Adjustment | Technical Basis: Integrated hydraulic cylinder for tramp iron relief and CSS adjustment | Operational Benefit: Provides automatic clearing of uncrushable material without machine damage and allows remote adjustment of product size | ROI Impact: Eliminates costly damage from tramp metal and enables quick product size optimization for varying ore types.

HeavyDuty Spherical Roller Bearings | Technical Basis: Largediameter bearings with high load ratings and L10 life calculations exceeding 50,000 hours | Operational Benefit: Sustains peak loads from hard rock crushing with exceptional reliability, reducing bearingrelated failures | ROI Impact: Predictable bearing service life lowers total cost of ownership and minimizes catastrophic failure risk.

STELLAR™ Manganese Steel Jaws | Technical Basis: Proprietary alloy composition workhardens under compression abrasion | Operational Benefit: Jaw plates develop a hardened surface layer in operation, extending service life in highly abrasive silicarich gold ores | ROI Impact: Reduces consumable costs per ton crushed by documented rates of 1530% over standard manganese.

Integrated Motor Base & Drive Guards | Technical Basis: Unified baseplate for crusher, motor, and sheaves with full mechanical guarding | Operational Benefit: Simplifies foundation requirements, ensures drive alignment, and provides inherent safety compliance | ROI Impact: Reduces installation time/cost by approximately 25% and mitigates risk of safety incidents.

Centralized Greasing Points | Technical Basis: Lube lines routed to a single, accessible station on the crusher frame | Operational Benefit Enables safe, rapid daily greasing of all key bearings without operators needing to access hazardous areas around moving components | ROI Impact Promotes proactive maintenance adherence, extending component life and preventing unscheduled stops.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard (Competitive Jaw Crusher) | Our Gold Ore Crushing Solution | Advantage (% Improvement) |
| : | : | : | : |
| Availability (Uptime) | 9294% (scheduled & unscheduled maintenance) | 96%+ (based on field performance data) | +24% Uptime |
| Manganese Wear Life (Abrasive Ore)| Based on standard 14% Mn steel; varies widely.| STELLAR™ Alloy Jaw Plates; documented extended life.| +1530% Longer Life |
| Throughput Capacity (tph) @ given CSS| Rated capacity under ideal conditions.| Consistently meets or exceeds rated capacity with sticky feed due to aggressive kinematics.| +57% Sustained Throughput |
| Tramp Iron Recovery Time| Manual clearing requiring hours of downtime.| Hydraulic Toggle System clears chamber in <2 minutes automatically.| Downtime Reduced by ~95% |
| Installed Power Efficiency (kW/t)| Varies with design efficiency.| Optimized chamber geometry & flywheel mass provide higher reduction per cycle.| Up to 8% Lower kWh/tonne |

5. TECHNICAL SPECIFICATIONS

Model Range Capacities: From 500 tonnes per hour (tph) to over 2,500 tph of dry gold ore at a bulk density of 1.6 t/m³.
Feed Opening: Up to 1500mm x 1200mm (60" x 48") to accept large ROM feed.
Power Requirements: Dependent on model; main crusher motor from 150 kW up to 375 kW. Complete system includes VGF feeder motors.
Material Specifications: Highstrength fabricated steel frame; STELLAR™ or standard manganese steel wear liners; forged alloy steel eccentric shaft.
Physical Dimensions (Typical Large Model): Approx. Length: 7m, Width: 3.5m, Height: 3m (excluding feeder). Weight ranges from ~45,000 kg to ~120,000 kg.
Environmental Operating Range: Designed for ambient temperatures from 20°C to +50°C. Dust sealing is standard; optional systems available for extreme environments.

6. APPLICATION SCENARIOS

West African Gold Mine – Throughput Expansion

Challenge An existing operation increased mining rates but its primary jaw crusher was the bottleneck,causing frequent stockpiling ahead of the plant.The older unit required weekly maintenance stops.
Solution Installation of our largest heavyduty jaw crusher model with modular jaws as the new primary unit.The hydraulic toggle was critical due to occasional ground engagement tool debris in the feed.
Results Primary circuit throughput increased by22%.Crusherrelated unplanned downtime fell by80%.The plant consistently met its expanded target of16，000 tpd.

Canadian Hard Rock Mine – Abrasion & Cost Control

Challenge Extremely abrasive quartzite ore was consuming standard jaw plates every6 weeks，creating high consumable costsand unpredictable shutdowns.Downtime coincided with scheduled mill relining，extending fullplant stops.
Solution Retrofit of our jaw crusher featuring STELLAR™ manganese jawsand centralized greasing.The existing foundation required minimal modification.
Results Jaw plate service life extendedto an averageof9 weeks，a28% improvement.Consumable cost per ton crushed decreasedby22%.Coordinated liner changes reduced overall plant downtime windows.

7.COMMERCIAL CONSIDERATIONS

Pricing is structured around model capacityand configuration:
• Base Equipment Tier Includescrusher，standard jaws，motor drives，and guards.Pricing scaleswith feed opening sizeand rated power。
• Optional Features Common additions include：advanced dust suppression systems，automated lubrication systems，wear monitoring sensors，and special tool kitsfor maintenance。
• Service Packages Availabletiers include：Basic（parts only），Planned（scheduled inspections& parts），and Comprehensive（full parts& labor coveragewith guaranteed response times）。These packages provide predictable operatingcosts。
• Financing Options We workwith thirdparty financial institutions tooffer flexible solutions including capital lease，operating lease，or leasetoown plans tomatchyour CAPEX cycles。Rental unitsfor temporaryor trial needs are also available。

8.FAQ

Q What if my gold ore is particularly wetor sticky？
A Ourjawcrushers are designedwith an aggressive nip angleand sufficient discharge clearance tomitigate plugging.Optional heated jaw platesare availablefor severe climates toprevent material buildup。

Q How do I determine the correct sizefor my operation？
A Selectionis basedon topfeed size（gape）and required capacity（tph）.Our application engineers will reviewyour mine plan，ore characteristics（Bond Work Index，abrasiveness），and desired product sizeto recommendthe optimal model。

Q Are these crushers compatiblewithexisting feedingand conveying systems？
A Yes.They are engineeredto standard industrial footprints.Connection pointsfor feedersand discharge chutes can be adapted.We provide detailed interface drawingsfor your engineering contractor。

Q What isthe expected delivery lead time？
A For standard models，lead times typically range from20to32weeksfrom order confirmation dependingon current global demand.Critical path items often includeforged shaftsand large castings。

Q What kindof performance guaranteesare provided？
A We guarantee rated capacitywhen processing definedore specificationsunder proper operating conditions.Wear part life estimatesare providedas projectionsbasedon suppliedore data but are not guaranteed due touncontrollable site factors。

Q Do you offer installation supervisionor commissioning support？
A Yes.Commissioning supportis strongly recommended.Itis availableas partof select service packagesor asa standalone offeringto ensure optimal setupand operator training。

Q Can spare partsbe sourced locallyat my remote site？
A We maintaina global networkof certified parts distributors.For critical wear itemslikejaw plateswe advisemaintaininga strategic stockonsite basedon our consumption forecasts。