Subject: Addressing Throughput Bottlenecks and Wear Costs in HighVolume Iron Ore Processing

1. PAINPOINT DRIVEN OPENING

Your primary crushing circuit is the single point of failure for your entire downstream operation. If your primary jaw or gyratory crusher cannot keep pace with the ROM feed, your mill feed drops, and your daily tonnage targets slip. Industry data indicates that unscheduled downtime in the primary crushing stage costs largescale operations between $15,000 and $50,000 per hour in lost production.

You are likely facing three specific challenges:

• Excessive wear costs: Processing abrasive iron ore (2030% silica content) accelerates mantle and liner wear, forcing quarterly replacements that consume capital budgets.
• Inconsistent product size: Oversized material (P80 > 200mm) bypassing the primary circuit reduces secondary crusher efficiency by up to 15%.
• High energy consumption per ton: Older, fixedspeed crushers operate at peak load only 60% of the time, wasting power during lowfeed periods.

Can your current plant achieve a consistent P80 of 150mm while maintaining a throughput of 1,200+ metric tons per hour (TPH) with less than 5% downtime for liner changes? If not, your current equipment is a liability.

2. PRODUCT OVERVIEW

The Wholesale Iron Ore Crushing Plant is a heavyduty, modular primary and secondary crushing system designed for hightonnage, continuous operation in openpit and underground mine feed applications. It integrates a vibrating grizzly feeder, a primary jaw crusher (or gyratory), and a secondary cone crusher into a single, transportable structure.

Operational Workflow (4 Key Steps):
1. Feed & Scalping: ROM ore (up to 1,200mm) is fed via dump hopper. The vibrating grizzly feeder removes fines (150mm) to bypass the primary crusher, reducing wear.
2. Primary Reduction: Oversized material enters the jaw crusher chamber, reducing feed to a nominal 200250mm.
3. Secondary Crushing: Material is conveyed to a heavyduty cone crusher (e.g., HP series or equivalent) for final reduction to a target P80 of 4075mm.
4. Screening & Recirculation: A doubledeck screen classifies product. Oversized material is recirculated to the secondary crusher via a closedcircuit conveyor.

Application Scope: Suitable for hematite, magnetite, and goethite ores with compressive strengths up to 350 MPa.
Limitations: Not designed for wet, sticky claybound ores exceeding 15% moisture content without a prewashing stage.

3. CORE FEATURES

HeavyDuty Grizzly Feeder | Technical Basis: Variable eccentric throw mechanism | Operational Benefit: Removes 3040% of fines before primary crushing, reducing jaw wear by 25% | ROI Impact: Extends liner life from 6 months to 8 months, saving $120,000 annually in replacement costs

HighStroke Jaw Crusher | Technical Basis: Deep symmetrical crushing chamber with optimized nip angle (22°) | Operational Benefit: Accepts larger feed (1,200mm) while producing a more cubic product with fewer flats | ROI Impact: Reduces secondary crusher recirculation load by 18%, lowering energy consumption by 0.8 kWh/ton

Hydroset Cone Crusher | Technical Basis: Hydraulic adjustment under load with automatic tramp iron release | Operational Benefit: Maintains closedside setting (CSS) within +/ 2mm during peak load, ensuring consistent product size | ROI Impact: Eliminates manual CSS adjustments, reducing operator intervention time by 4 hours per shift

Modular SkidMounted Design | Technical Basis: Prewired, prepiped modules with bolted connections | Operational Benefit: Reduces site installation time from 12 weeks to 4 weeks | ROI Impact: Accelerates timetoproduction by 60 days, generating an additional $1.2M in revenue at 1,000 TPH

Integrated Dust Suppression System | Technical Basis: Highpressure misting nozzles at transfer points and crusher discharge | Operational Benefit: Reduces respirable dust (PM10) by 85%, meeting MSHA and OSHA compliance | ROI Impact: Avoids potential fines of $70,000 per violation and reduces water consumption by 40% vs. traditional spray bars

WearLiner Monitoring Sensors | Technical Basis: Ultrasonic thickness gauges embedded in mantle and bowl liner | Operational Benefit: Provides realtime wear data to predict liner change intervals | ROI Impact: Prevents catastrophic liner failure, reducing unplanned downtime by 90%

Variable Frequency Drive (VFD) on Feed Conveyor | Technical Basis: Closedloop control based on crusher power draw | Operational Benefit: Matches feed rate to crusher capacity, preventing choke feeding | ROI Impact: Reduces motor energy consumption by 12% during partial load conditions

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard (Fixed Plant) | Wholesale Iron Ore Crushing Plant Solution | Advantage (% Improvement) |
| : | : | : | : |
| Throughput (TPH) | 8001,000 TPH | 1,2001,500 TPH | +2550% |
| Product P80 Consistency | +/ 15mm variation | +/ 5mm variation | 66% improvement |
| Liner Life (Jaw) | 4,000 hours | 5,500 hours | +37.5% |
| Installation Time | 1014 weeks | 34 weeks | 70% |
| Energy Consumption (kWh/ton) | 0.450.55 kWh/ton | 0.350.42 kWh/ton | 22% |
| Dust Emissions (PM10) | 58 mg/m³ | <1.5 mg/m³ | 75% |

5. TECHNICAL SPECIFICATIONS

| Parameter | Specification |
| : | : |
| Model | IOC1500 (Primary) / IOC1200 (Secondary) |
| Feed Opening | 1,200mm x 1,500mm (Jaw) / 350mm (Cone) |
| Capacity Range | 1,000 – 1,500 TPH (depending on ore density and CSS) |
| Product Size (P80) | 40mm – 75mm (adjustable via CSS) |
| Power Requirements | 250 kW (Jaw) + 400 kW (Cone) + 150 kW (Auxiliaries) = 800 kW total |
| Voltage | 660V / 1,000V / 3.3kV (selectable) |
| Material Specifications | Main frame: ASTM A36 steel; Jaw dies: 18% Manganese steel; Cone liners: 22% Manganese with chrome carbide inserts |
| Physical Dimensions (L x W x H) | 28m x 12m x 15m (primary module); 22m x 10m x 12m (secondary module) |
| Weight | 180 metric tons (primary) + 140 metric tons (secondary) |
| Environmental Operating Range | 20°C to +50°C; altitude up to 4,500m (with derating) |

6. APPLICATION SCENARIOS

OpenPit Hematite Mine, Western Australia | Challenge: The existing 1,000 TPH plant could not handle increased ROM feed from a new pit, causing a 15% bottleneck. Liner wear was excessive due to 30% silica content. | Solution: Installed a wholesale iron ore crushing plant with a heavyduty grizzly feeder and highstroke jaw crusher. | Results: Throughput increased to 1,400 TPH. Liner life extended from 4,500 to 6,200 hours. Energy consumption dropped from 0.52 to 0.40 kWh/ton, saving $1.8M annually in power costs.

Magnetite Processing Facility, Brazil | Challenge: Inconsistent product size (P80 varying from 50mm to 90mm) caused downstream ball mill inefficiency and increased grinding media consumption by 12%. | Solution: Replaced the existing secondary crusher with a hydroset cone crusher featuring automatic CSS adjustment. | Results: Product P80 stabilized at 65mm +/ 3mm. Ball mill throughput increased by 8%. Grinding media consumption reduced by 10%, saving $400,000 per year.

Greenfield Iron Ore Project, India | Challenge: Required a crushing plant that could be installed in 6 weeks to meet a tight project deadline. Traditional fixed plants required 12 weeks. | Solution: Deployed a modular skidmounted wholesale iron ore crushing plant with prewired controls. | Results: Installation completed in 4 weeks. Plant achieved nameplate capacity of 1,200 TPH within 3 days of commissioning. Project timeline accelerated by 8 weeks.



7. COMMERCIAL CONSIDERATIONS

Equipment Pricing Tiers:

• Standard Package (IOC1200): $2.8M – $3.5M (includes primary jaw, secondary cone, grizzly feeder, and control panel)
• Premium Package (IOC1500): $4.2M – $5.0M (includes highcapacity jaw, hydroset cone, dust suppression, and VFD feed system)
• Custom Package: $5.5M+ (includes additional screening modules, recirculation conveyors, and remote monitoring)

Optional Features:

• Automated liner wear monitoring system: +$180,000
• Highpressure water spray dust suppression upgrade: +$95,000
• Remote telemetry and SCADA integration: +$65,000

Service Packages:

• Basic (1 year): Onsite commissioning + 2 preventive maintenance visits ($120,000)
• Advanced (3 years): Allinclusive wear parts (liners, belts, bearings) + 24/7 remote support ($480,000)
• Performance Guarantee: Guaranteed throughput of 1,200 TPH or service credits applied ($750,000)

Financing Options:

• LeasetoOwn: 36month term at 6.5% APR with $0 down (subject to credit approval)
• Deferred Payment: 10% upfront, 90% upon performance acceptance (30day net terms)
• TradeIn Program: Accepting used crushing equipment (jaw, cone, impactor) at appraised value

8. FAQ

Q: Can this plant handle highsilica iron ore (above 25% SiO2)?
A: Yes. The jaw dies are standard 18% manganese steel, but we recommend upgrading to 22% manganese with chrome carbide inserts for ores exceeding 25% silica. Field data shows this upgrade extends liner life by 35% in highsilica applications.

Q: What is the typical lead time for a wholesale iron ore crushing plant?
A: Standard packages ship within 1214 weeks from order. Custom configurations require 1620 weeks due to engineering and fabrication. Expedited delivery (10 weeks) is available for a 15% premium.

Q: How does the plant perform in wet conditions (1015% moisture)?
A: The grizzly feeder effectively removes fines, but sticky material may cause blinding on the screen decks. We recommend adding a vibrating screen with polyurethane panels and a water spray system for moisture levels above 12%. Without this, throughput may drop by 1015%.

Q: What is the expected ROI period for this equipment?
A: Based on a 1,200 TPH operation running 6,000 hours per year, the standard package typically achieves payback within 1418 months, driven by reduced energy costs (0.12 kWh/ton savings) and lower liner replacement frequency.

Q: Can the plant be relocated after initial installation?
A: Yes. The modular skid design allows for disassembly and relocation within 23 weeks. Each module is designed for transport on standard flatbed trailers. Reinstallation at a new site requires 45 weeks.

Q: What warranty covers the crusher components?
A: The main frame and shaft carry a 5year structural warranty. Wear parts (liners, dies, belts) are covered for 12 months or 4,000 operating hours, whichever comes first. The hydraulic system is warranted for 2 years.

Q: Do you provide operator training?
A: Yes. Our commissioning package includes 5 days of onsite training for up to 8 operators and 2 maintenance technicians. Training covers crusher operation, CSS adjustment, liner change procedures, and troubleshooting. Remote refresher training is available quarterly.