Gold Ore Crushing Equipment Datasheet
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The Cost of Inefficient Gold Ore Comminution: Are You Losing 1520% of Your Recovery Potential?
Every plant manager knows the bottleneck: if your primary crushing circuit fails to deliver a consistent, properly liberated feed, downstream grinding and leaching efficiency collapses. Industry data indicates that poorly matched crushing equipment can increase operating costs by $0.50 to $1.20 per ton due to excessive recirculation loads, premature liner wear, and downstream mill overgrinding. Are you facing excessive downtime from jaw crusher jams on highclay ores? Is your cone crusher producing too many fines, blinding your screens and increasing cyanide consumption? The solution lies in selecting equipment designed specifically for the abrasive, highcompressivestrength nature of goldbearing rock.
Product Overview: The Gold Ore Primary & Secondary Crushing System
This datasheet covers a modular, heavyduty jaw and cone crushing circuit engineered for gold ore feed sizes up to 600mm, targeting a final product of 80% passing 1219mm for optimal SAG or ball mill feed. The workflow is designed for high availability in remote, highaltitude operations.
Operational Workflow:
1. Feed Hopper & Grizzly: Scalps 150mm fines to bypass the primary crusher, reducing wear.
2. Primary Jaw Crushing: Highstroke, deepchamber jaw reduces ore from 600mm to 150mm.
3. Surge Bin & Vibrating Feeder: Regulates feed rate to the secondary cone crusher.
4. Secondary Cone Crushing: Hydrosetcontrolled, medium chamber cone reduces material to 1219mm.
5. ClosedCircuit Screening: Oversize material is recirculated to the cone crusher.
Application Scope: Ideal for hard rock gold (quartz veins, greenstone belts) with compressive strengths up to 350 MPa. Limitations: Not recommended for highclay (>15%) saprolite ores without a dedicated scrubber circuit; throughput drops significantly with excessive moisture.
Core Features
HeavyDuty Deep Chamber Jaw | Technical Basis: Increased nip angle & toggle plate geometry | Operational Benefit: Handles slabby, hard gold ore without stalling; reduces bridging incidents by 40% | ROI Impact: Lower unscheduled downtime; estimated savings of $8,000 per hour of lost production.
Hydroset Cone Adjustment System | Technical Basis: Hydraulic overload protection & automated closedside setting (CSS) adjustment | Operational Benefit: Instant clearing of tramp iron; CSS can be adjusted remotely in under 2 minutes | ROI Impact: Eliminates manual liner changes for different ore types; reduces recirculation load by 15%.
HighStrength Manganese Liners (18% Mn, 2% Cr) | Technical Basis: Workhardening austenitic manganese steel | Operational Benefit: Resists gouging abrasion from quartz; liner life averages 8,00012,000 hours in gold ore | ROI Impact: Reduces annual wear parts cost by 22% compared to standard 14% Mn liners.
Modular SkidMounted Frame | Technical Basis: Structural steel Ibeam base with vibration dampeners | Operational Benefit: Reduces concrete foundation costs by 60%; allows rapid relocation within the pit | ROI Impact: Shortens project payback period by 46 months for mobile operations.
Variable Frequency Drive (VFD) on Feed Conveyor | Technical Basis: Torque control & loadsensing logic | Operational Benefit: Automatically reduces feed rate when crusher amp draw spikes; prevents choke feeding | ROI Impact: Protects motor windings; reduces energy consumption per ton by 812%.
Dust Suppression Spray System | Technical Basis: Water misting at transfer points & crusher discharge | Operational Benefit: Controls respirable silica dust to <0.05 mg/m³ | ROI Impact: Avoids OSHA/MSHA fines; reduces water consumption by 30% vs. standard sprays.
Competitive Advantages
| Performance Metric | Industry Standard (200 HP Cone) | Gold Ore Crushing Solution (200 HP Cone) | Advantage (% Improvement) |
| : | : | : | : |
| Throughput (tph) | 180220 tph | 240280 tph | +27% |
| Reduction Ratio (Secondary) | 4:1 | 5.5:1 | +37% |
| Liner Wear Rate (lbs/ton) | 0.045 lbs/ton | 0.032 lbs/ton | 29% |
| Power Consumption (kWh/t) | 1.8 kWh/t | 1.4 kWh/t | 22% |
| Mean Time Between Failure (MTBF) | 1,200 hours | 1,800 hours | +50% |
Technical Specifications
| Parameter | Specification |
| : | : |
| Model | GOC1200 (Primary Jaw) / GOC400 (Secondary Cone) |
| Feed Opening (Jaw) | 1200mm x 900mm |
| Max Feed Size (Cone) | 200mm |
| Capacity Range | 200 350 metric tons per hour (depending on CSS) |
| Power Requirement | 160 kW (Jaw) / 200 kW (Cone) @ 660V, 3Phase, 50/60 Hz |
| Material Specifications | Main frame: ASTM A36; Shaft: 4340 Forged Alloy Steel; Liners: ASTM A128 Grade C |
| Physical Dimensions (Crusher Only) | Jaw: 3.2m L x 2.1m W x 2.8m H; Cone: 2.5m L x 2.0m W x 2.5m H |
| Total Weight (Crusher Only) | Jaw: 42,000 kg; Cone: 28,000 kg |
| Environmental Operating Range | 20°C to +50°C; Altitude up to 4,500m (with derating) |
Application Scenarios
HighAltitude Underground Gold Mine (Andes Region)
Challenge: A mine at 4,200m needed to reduce haulage costs by precrushing ore underground. Space was limited, and ambient oxygen levels were low.
Solution: Installed a compact, VFDdriven GOC400 cone crusher on a lowprofile skid. The Hydroset system allowed remote CSS adjustment from the surface control room.
Results: Reduced skip hoisting cycle time by 18%. Eliminated manual liner adjustments in lowoxygen environment. Achieved 98% availability over 12 months.
OpenPit Oxide/Gold Transition Ore (West Africa)
Challenge: The ore body contained variable clay content (512%) causing severe blinding of the primary jaw crusher and feeder.
Solution: Implemented the GOC1200 jaw with a heavyduty grizzly feeder (spacing 150mm) and a bypass conveyor. The deep chamber design handled the sticky material without packing.
Results: Eliminated 3 weekly blockages. Throughput increased from 180 tph to 260 tph. Screen deck life on the secondary circuit increased by 40% due to reduced fines generation.
Greenfield Gold Project (Canada)
Challenge: Required a mobile, relocatable crushing circuit to follow the pit development. Capital budget was constrained.
Solution: Deployed the full modular skid system (jaw, cone, screen) on concrete pads. No permanent foundations were required.
Results: First ore crushed 6 weeks ahead of schedule. Relocation cost was $45,000 vs. $250,000 for a fixed plant. Achieved target P80 of 14mm consistently.
Commercial Considerations
Equipment Pricing Tiers (FOB Port):
- Standard Package (GOC1200 Jaw + GOC400 Cone): $480,000 $620,000 (includes standard manganese liners, basic control panel).
- Premium Package: $680,000 $850,000 (includes premium 18% Mn liners, VFDs, remote monitoring package, dust suppression).
- Turnkey Modular Plant: $1.2M $1.8M (includes all conveyors, screens, electrical room, and commissioning support).
- Automated Lube System: $18,000 (extends bearing life in dusty environments).
- HighAltitude Motor Package: $12,000 (derated for >3,500m).
- Wear Monitoring Sensors: $8,500 (predictive maintenance alerts).
- Basic (1 year): 2 site inspections, phone support, 10% discount on wear parts.
- Comprehensive (3 years): 4 site inspections, remote diagnostics, guaranteed 48hour parts delivery, liner changeout training.
- LeasetoOwn: 3660 month terms with 10% buyout.
- Deferred Payment: 90day payment holiday for firsttime buyers.
- PerformanceBased: Payment tied to throughput guarantees (e.g., $/ton processed).
Optional Features:
Service Packages:
Financing Options:
FAQ
1. Can this equipment handle highsilica gold ore (quartz) without excessive wear?
Yes. The standard liners are 18% manganese with 2% chromium, specifically formulated for highsilica content. Field data shows a 30% improvement in wear life over standard 14% Mn liners in quartzrich ore.
2. What is the minimum power requirement for the GOC400 cone crusher?
The crusher requires a minimum of 200 kW. However, for optimal performance and to prevent motor stalling under full load, we recommend a 250 kW motor with a VFD. Operating below 200 kW will reduce throughput by approximately 15%.
3. How does the Hydroset system handle tramp iron?
The system monitors hydraulic pressure. If a noncrushable object (e.g., drill bit) enters the chamber, pressure spikes. The Hydroset valve opens instantly, dropping the main shaft to clear the object. The system resets automatically within 10 seconds.
4. What is the typical lead time for a standard package?
Current lead time is 1418 weeks from order confirmation. This includes manufacturing, factory testing, and crating for ocean freight. Premium packages may add 24 weeks for the remote monitoring system.
5. Can this circuit be integrated with an existing SAG mill?
Yes. The target product size (P80 of 1219mm) is standard feed for most SAG mills. We provide a data sheet for the conveyor discharge chute to match your existing mill feed bin. A surge bin with a capacity of 50100 tons is recommended.
6. What is the warranty on the main frame and shaft?
The main frame and eccentric shaft carry a 5year warranty against manufacturing defects. Wear parts (liners, cheek plates) are excluded. The hydraulic system components carry a 2year warranty.
7. Do you provide operator training?
Yes. We offer a 3day onsite training program covering startup procedures, CSS adjustment, liner changeout safety, and troubleshooting common issues like choke feeding and belt slippage. This is included in the Comprehensive Service Package.