1. PAINPOINT DRIVEN OPENING

Managing a quarry site supplying a highvolume Lagos assembly plant presents distinct logistical and operational pressures. Inconsistent aggregate supply directly halts production lines, incurring contractual penalties and idling labor. Are you facing:
Unplanned Downtime: Crusher or screen failures causing 2448 hour delays in material delivery, disrupting the plant’s JustInTime schedule?
Inconsistent Gradation: Variable particle size in your output, leading to rejected loads at the assembly plant’s QC checkpoint and wasted haulage costs?
Excessive Operational Costs: Rising fuel, maintenance, and labor expenses per ton of processed material eroding your margin on fixedprice supply contracts?
Site Congestion & Safety Risks: Inefficient material flow creating bottlenecks at loading points, increasing cycle times and pedestrianvehicle interaction?

The reliability of your entire operation hinges on the resilience and precision of your primary crushing and screening setup. How do you secure a consistent, specificationperfect aggregate supply to meet relentless demand?

2. PRODUCT OVERVIEW

The solution is a trackmounted primary jaw crushing plant, engineered specifically for the highoutput, abrasive conditions of granite quarrying in Lagos. This mobile primary crusher serves as the first critical reduction stage, processing blasted rock into conveyable aggregate for secondary processing or direct use.

Operational Workflow:
1. Excavator or wheel loader feeds blasted rock (0700mm) directly into the vibrating grizzly feeder.
2. The grizzly bypasses sub100mm fines to a side conveyor while directing oversize to the robust jaw crusher chamber.
3. The hydraulic adjustment CSS (Closed Side Setting) allows operators to dial in the primary crush size (typically 125175mm) in minutes.
4. Crushed material is discharged onto the main product conveyor for stockpiling or direct feed to downstream screens.
5. The entire unit relocates within the quarry via its integrated tracks, following the face to minimize haul truck cycle distances.

Application Scope: Ideal for mediumtolarge granite quarries supplying construction aggregates (3/4”, 1/2”, base course). It is designed as a primary reduction unit and requires secondary screening for final product gradation.

Limitations: Not suitable for processing heavily reinforced concrete or asphalt recycling without specific prescreening and modifications. Maximum feed size is determined by model selection.

3. CORE FEATURES

Direct Feed & PreScreening | Technical Basis: Integrated vibrating grizzly feeder (VGF) with aggressive stroke | Operational Benefit: Removes natural fines before crushing, reducing chamber wear and increasing throughput of crushable material | ROI Impact: Reduces jaw die wear costs by up to 30% and boosts effective capacity by preventing chamber packing.

Hydraulic CSS Adjustment | Technical Basis: Wedgebased jaw setting adjustment via hydraulic cylinders | Operational Benefit: Enclosedside setting changes performed in under 10 minutes without manual shims for rapid product size adaptation | ROI Impact: Minimizes nonproductive adjustment downtime by over 85% compared to manual systems.

QuarryGrade Jaw Crusher | Technical Basis: Deep crushing chamber with optimized nip angle and high inertia flywheels | Operational Benefit: Maintains consistent throughput on abrasive granite, reduces blockages, and provides high reduction ratio | ROI Impact: Delivers more tons per hour at the primary stage, lowering costperton through higher utilization.

Intelligent Track Drive System | Technical Basis: Dieselhydraulic power pack with proportional radio remote control | Operational Benefit: Enables precise positioning by a single operator from a safe distance, optimizing feed point location daily | ROI Impact: Cuts repositioning time from hours to minutes and reduces fuel consumption during moves by approximately 40%.

HeavyDuty Product Conveyor | Technical Basis: Highcapacity belt conveyor with impact bars at loading point | Operational Benefit: Handles sharp, coarse aggregate discharge without belt damage; variable discharge height improves stockpile management | ROI Impact: Extends conveyor belt service life significantly, reducing replacement part costs and associated downtime.

Integrated Dust Suppression System | Technical Basis: Pressurized water spray bars at feeder and crusher discharge points | Operational Benefit: Effectively controls dust emissions at source, ensuring compliance with site environmental standards | ROI Impact: Mitigates risk of work stoppages due to environmental violations and improves operator health/safety conditions.

Onboard Diagnostics & Telemetry | Technical Basis: CANbus system monitoring engine parameters, crusher load, and operational hours | Operational Benefit: Provides realtime data on machine health and performance for predictive maintenance scheduling | ROI Impact: Prevents catastrophic failures; field data shows a 25% reduction in unplanned breakdowns through proactive component servicing.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard (Fixed/SkidMounted Primary) | TrackMounted Primary Crusher Solution | Advantage (% improvement) |
|||||
| Relocation Time | 23 days (dismantle/transport/reassemble) | < 30 minutes | ~99% |
| Setup Time PostMove | 2448 hours | Immediate operation | ~100% |
| Fuel Consumption (Loading) | High (reliant on multiple haul trucks from face to plant) | Low (crusher moves to face; minimal truck use) | Up to 35% reduction |
| Labor for Repositioning | Crew of 46 | 1 Operator | ~80% reduction |
| Flexibility in Pit Layout | Limited; defines fixed material flow | High; enables optimal flow as quarry face advances | Significant |

5. TECHNICAL SPECIFICATIONS

Model Designation: QPJ1360
Crusher Type: Single Toggle Jaw Crusher
Feed Opening: 1300mm x 600mm
Maximum Feed Size: ≤700mm
Closed Side Setting Range: 100mm 200mm (hydraulic adjustment)
Capacity Range: Up to 550 tonnes per hour (dependent on feed material & CSS)
Power Unit: Tier III / Stage IIIA Compliant Diesel Engine, 300 kW
Track Drive: Hydraulic via variable displacement motors
Main Conveyor: Belt width 1400mm; Discharge height ~4m (adjustable)
Construction: Highstrength steel frame; abrasionresistant steel liners at wear points
Operating Weight: Approximately 72 tonnes
Environmental Operating Range: Ambient temperature 10°C to +45°C; designed for high humidity environments.

6. APPLICATION SCENARIOS

Granite Quarry Supplying ReadyMix Concrete Plants & Block Industries in Ikorodu/Ota Axis

Challenge: A quarry operator faced frequent bottlenecks at their fixed primary plant due to increasing haul distances as the pit expanded. Truck cycle times were escalating, limiting daily output.
Solution: Implementation of a trackmounted primary jaw crusher that could be repositioned weekly along the advancing quarry face.
Results: Haul truck cycle distance reduced by an average of 60%. This translated to a 22% increase in daily shipped tonnage using the same truck fleet and a measurable decrease in diesel consumption per ton hauled.

LargeScale Quarry Feeding a Major Road Construction Project

Challenge: Strict project timelines required multiple aggregate specifications (1”, ¾”) from the same rock face with minimal changeover delay.
Solution: Utilizing the hydraulic CSS adjustment feature of the trackmounted jaw crusher to alter primary product size rapidly between shifts.
Results: Product size changeovers completed in under 15 minutes instead of several hours. This flexibility allowed simultaneous feeding of two separate stockpiles from one face without compromising crusher utilization or project schedule.

7. COMMERCIAL CONSIDERATIONS

The capital investment for this class of equipment varies based on configuration:

Base Configuration Tier (~₦250350 million): Includes core jaw crusher with standard feeder/magnet/conveyor/dust suppression.
Enhanced Configuration Tier (~₦350450 million): Adds extended main conveyor (+2m height), hydraulic folding side conveyor for fines removal, advanced telemetry package.
Optional features include onboard power packs for electric operation near grid supply, heavierduty grizzly sections for extreme conditions, and custom wear part packages.

Service packages are available:
1.
Basic Scheduled Maintenance Plan covers parts/labor for defined intervals.
2
Comprehensive Uptime Plan extends coverage to include wear parts (jaws/side liners), offering predictable costperton over an agreed period.
Financing options can be structured through our partners as equipment loans or operating leases tailored to cash flow from specific supply contracts.

8

FAQ

Q What is required onsite before this equipment can operate?
A You need prepared access roads capable of supporting ~72 tonnes during moves level ground at each operating position sufficient water supply (5m³/day) for dust suppression

Q Can it process other materials like limestone or laterite?
A Yes while optimized for hard abrasive granite it is suitable for other hard rock formations Limestone will result in higher throughput Laterite requires dry conditions assessment due to potential clogging

Q How does maintenance compare with traditional stationary plants?
A Accessibility is improved Service points are centralized Routine maintenance like greasing belt tension checks remains similar Major component access is engineered requiring no special site infrastructure

Q What backup support is available locally in Lagos/Ogun states?
A We maintain an authorized service center with trained technicians located in Sagamu A comprehensive inventory of critical wear parts jaws bearings belts filters ensures rapid response

Q Is operator training provided?
A Yes comprehensive training is included covering safe operation daily checks basic troubleshooting remote control use hydraulic adjustments Training occurs onsite during commissioning

Q Can this unit feed directly into my existing secondary cone crusher circuit?
A Typically yes The discharge conveyor height can be specified or modified via adjustable legs/stacker option allowing direct transfer into secondary hoppers eliminating double handling