1. OUVERTURE ENTRAÎNÉE PAR POINT DE DOULEUR

La gestion d'un site de carrière à Lagos présente des obstacles opérationnels distincts qui ont un impact direct sur vos résultats.. Are you contending with unpredictable bedrock hardness that leads to premature wear on crusher components? Are you losing valuable production hours to excessive dust generation, causing site shutdowns and community complaints? Is the high cost of diesel fuel for mobile equipment eroding your profit margins on every ton of aggregate produced? En outre, do inconsistent feed sizes from primary breaking cause bottlenecks in your secondary crushing circuit, limiter le débit global de l’usine? Ces défis se traduisent par des pertes quantifiables: temps d'arrêt imprévu, soaring maintenance costs, reduced equipment lifespan, and failure to meet project deadlines. The central question for a commercial buyer is this: comment pouvez-vous obtenir des résultats cohérents, highvolume aggregate production in Lagos’s demanding environment while systematically controlling operational expenses?

2. APERÇU DU PRODUIT

The solution is a stationary primary jaw crusher plant, engineered specifically for the granite and hard rock quarries prevalent in the Lagos region. This heavyduty equipment serves as the foundational first stage in your mineral processing workflow.

Flux de travail opérationnel:
1. Alimentation: Dump trucks or loaders deposit large blasted rock (typically up to 800mm) into the plant’s reinforced hopper.
2. Écrasement: A robust jaw crusher applies compressive force to reduce the rock to a manageable size (typically 150200mm).
3. Présélection & Convoyage: Integrated grizzly screens bypass subsize material directly onto the main product conveyor, while crushed material is conveyed for secondary processing or stockpiling.

Champ d'application: This plant is designed for highcapacity primary reduction of hard, matériaux abrasifs comme le granit, basalte, and quartzite. It is the core of a fixed or semifixed quarry installation.

Limites: It is not suitable for mobile ondemand crushing applications or for processing soft, nonabrasive materials like limestone where alternative crusher types may offer efficiency advantages. Optimal operation requires a stable, prepared site foundation.

3. CARACTÉRISTIQUES PRINCIPALES

HeavyDuty Jaw Crusher Design | Base technique: Forged Eccentric Shaft and Deep Crushing Chamber | Avantage opérationnel: Sustains high crushing force against Lagos’s hard granite, reducing slabby product and minimizing blockages. | Impact sur le retour sur investissement: Higher throughput of firstpass crush reduces recirculation load and associated fuel/power costs.
Mangeoire à grizzlis intégrée | Base technique: Barres grizzly étagées avec espacement réglable | Avantage opérationnel: Removes fines and natural sand before the crushing chamber, increasing capacity and reducing unnecessary wear on jaw dies. | Impact sur le retour sur investissement: Protects your major capital investment (le broyeur) from abrasive wear, prolongeant la durée de vie du revêtement jusqu'à 30%.
DieselElectric Hybrid Power Option | Base technique: Diesel generator set powers all onboard electric motors | Avantage opérationnel: Eliminates dependency on unreliable grid power; offers fuel efficiency over directdrive diesel hydraulic systems. Avantage opérationnel: Provides consistent power in remote or infrastructurepoor sites common around new quarry locations in Lagos.| Impact sur le retour sur investissement: Les données de terrain montrent 1525% lower fuel consumption compared to traditional mobile primary units with equivalent output.
Graissage centralisé & Système de suppression de poussière | Base technique: Automated lubrication points and strategically placed spray nozzles | Avantage opérationnel: Ensures critical bearings are protected from the pervasive granite dust, while suppressing dust at transfer points. | Impact sur le retour sur investissement: Reduces manual maintenance time by 50% and mitigates risk of environmental fines or work stoppages.
Trémie renforcée & Construction du cadre | Base technique: Hightensile steel plates with internal wear liners | Avantage opérationnel: Withstands continuous impact from large blasted rock and the abrasive nature of granite feed material. | Impact sur le retour sur investissement: Minimizes structural repair downtime over the plant’s multidecade service life.

4. AVANTAGES CONCURRENTIELS

| Mesure de performances | Norme de l'industrie (Mobile Jaw Plant) | Stationary Primary Jaw Crusher Plant Solution | Avantage (% amélioration) |
| : | : | : | : |
| Disponibilité / Temps de disponibilité| ~85%, impacted by mobilization & positioning| >92%, due to stable installation & conception robuste| +8% Plus de temps de production |
| Tonnes par gallon de carburant| Variable; lower efficiency due to hydraulic drives| Consistent higher output per unit of fuel (dieselelectric drive)| +20% Efficacité énergétique |
| Coût d'usure par tonne| Plus haut; lighter frames/components less suited for constant hard rock| Inférieur; heavyduty components engineered for continuous hard rock service| 18% Cost per Ton Crushed |
| Setup Time for Operation| Jours (requires leveling, stabilization each move)| Semaines (onetime initial setup), then instantaneous daily startup.| N/A – Designed for Permanent Sites |

5. SPÉCIFICATIONS TECHNIQUES

Capacité / Notation: 350 600 tonnes par heure (depending on feed size and material hardness).
Crusher Aperture: Feed opening up to 1200mm x 800mm.
Exigences d'alimentation: Dieselelectric hybrid system with a 400 kVA onboard generator set. Can be configured for direct grid connection where stable power is available.
Spécifications matérielles: High manganese steel jaw dies; abrasionresistant steel hopper liners; reinforced steel frame construction.
Dimensions physiques (Env.): Longueur: 15m, Largeur: 6m, Hauteur: 5m (hors convoyeur de déchargement).
Plage de fonctionnement environnementale: Engineered for tropical climates; ambient temperature range 15°C to 45°C; composants électriques protégés contre la poussière; corrosionresistant coatings specified for coastal Lagos environments.

6. SCÉNARIOS D'APPLICATION

Agrandissement de la carrière de granit, Ikorodu Axis | Défi: A growing quarry operator needed to double production but was constrained by the slow cycle times and high fuel costs of their mobile primary crusher moving between faces.| Solution: Installation of one stationary primary jaw crusher plant at a central point fed by multiple faces.| Résultats: Le débit de l’usine a augmenté de 95%. Fuel consumption per ton dropped by 22%. The fixed installation allowed for optimized haul road planning.

New Hard Rock Aggregate Plant, Couloir de lumière | Défi: Setting up a new greenfield site required reliable primary crushing without immediate access to highcapacity grid power.| Solution: Deployment of a dieselelectric stationary jaw crusher plant as the foundation of the new processing circuit.| Résultats: The plant was operational within weeks of foundation completion. Consistent power enabled steady feeding of the downstream screening and secondary crushing stages from day one.

7. CONSIDÉRATIONS COMMERCIALES

Equipment pricing is tiered based on capacity and configuration:
Niveau de base: Standard specification plant with electric drive (gridpowered), suitable for sites with established infrastructure.
Niveau Premium: Includes dieselelectric hybrid power pack, système de lubrification automatisé, and upgraded dust suppression.
Les fonctionnalités optionnelles incluent des séparateurs magnétiques, onboard control rooms with automation interfaces, and custom conveyor lengths.
Des forfaits de services complets sont disponibles:
1. Plans de maintenance préventive programmée
2. Kits de pièces d’usure avec tenue de stock garantie
3. Onsite Technician Support Contracts
Financing options include equipment leasing through partnered financial institutions or milestonebased purchase agreements to align with your project cash flow.

8.FAQ

1.Q:What if my quarry faces are spread far apart?
UN:The stationary plant is designed as a central receiving point.Haul truck cycle time analysis during our site review typically confirms that centralized crushing is more efficient than repeatedly moving a mobile unit.

2.Q.How does this integrate with my existing secondary cone crushers?
UN:The primary jaw crusher plant's discharge conveyor can be directed to feed directly into your existing secondary circuit surge pile or feeder.We provide interface specifications to ensure compatibility.

3.Q.What is the expected liner life in Lagos granite?
A.With correct operation and our specified manganese steel jaws,customers report average liner life between 120，000 to180，000 tons before requiring rotation or replacement.Specific tonnage depends on abrasiveness index.

4.Q.Can you provide civil engineering drawings for the foundation?
A.Yes.Detailed foundation plans tailoredto your specific soil test reports are part ofthe predelivery technical package.This ensuresstable longterm operation

5.Q.What arethe payment terms?
A.We requirea deposit upon order confirmationwiththe balance due priorto shipment.Trade financingor lettersof creditfrom recognized banksare accepted

6.Q.What trainingis providedfor our operators?
A.We includea comprehensive onsite commissioningand training programfor your operationsand maintenance crews covering safe operation daily checksand basic troubleshooting

7.Q.How doyou handle major component failure?
A.Ourservice packagesinclude prioritized supportand access tooverhaul exchange programsfor major componentslike eccentric shafts drastically reducingdowntime comparedto full repair timelines