1. OUVERTURE ENTRAÎNÉE PAR POINT DE DOULEUR

Operating a quarry site in Lagos presents a distinct set of logistical and operational hurdles that directly impact profitability. Are you contending with the high cost and erratic supply of imported aggregates? Is your production bottlenecked by the inconsistent performance of underpowered or unsuitable crushing and screening equipment in the local climate? Are you managing excessive downtime due to equipment failures, compounded by lengthy lead times for spare parts and technical support? The cumulative effect is unpredictable output, escalating maintenance budgets, and missed project deadlines. Sourcing reliable, highcapacity primary crushing equipment is not merely a purchase; it is a strategic decision to stabilize your entire supply chain. How do you secure a consistent flow of highquality aggregate to meet Lagos's construction demands while controlling operational costs?

2. APERÇU DU PRODUIT

The cornerstone of an efficient Lagos quarry operation is a highperformance Concasseur à mâchoires primaire engineered for robust, continuous duty in granite and hard rock applications. This heavyduty machinery forms the first critical stage in mineral processing, reducing blasted rock to manageable sizes for further refinement.

Flux de travail opérationnel:
1. Alimentation: Dump trucks deposit large blasted rock (shot rock) directly into the crusher's vibrating grizzly feeder.
2. Écrasement: The jaw crusher’s fixed and movable jaws exert immense mechanical pressure, fracturing the rock through compressive force.
3. Séparation: The grizzly section bypasses subsize material directly to the discharge conveyor, optimizing capacity.
4. Décharge: Crushed product is conveyed to the next stage of processing, typically a secondary cone crusher or screening plant.

Champ d'application: Ideal for hightonnage primary reduction of abrasive granite, basalte, and other hard rock formations common to quarries in southwestern Nigeria.

Limites: Not designed for recycled concrete or asphalt as a primary feed material without specific configuration; requires competent foundational support and consistent, largevolume feed for optimal efficiency.

3. CARACTÉRISTIQUES PRINCIPALES

Chambre de concassage profonde & Aggressive Toggle | Base technique: Enhanced nip angle and stroke | Avantage opérationnel: Increases capacity and ensures aggressive reduction of large feed material | Impact sur le retour sur investissement: Higher throughput per fuel hour reduces cost per ton

Cadre fabriqué robuste | Base technique: Highgrade steel plate with reinforced ribbing | Avantage opérationnel: Withstands the stresses of continuous hard rock crushing and unstable grid power startups | Impact sur le retour sur investissement: Minimizes structural fatigue failures, extending asset life by years

Integrated Vibrating Grizzly Feeder (VGFF VGF) | Base technique: Prescreening section with adjustable grizzly bars | Avantage opérationnel: Removes fines prior to crushing, reducing chamber wear and preventing clogging during wet season operations | Impact sur le retour sur investissement: Directly reduces liner wear costs and improves total system throughput by up to 20%

Système de réglage à bascule hydraulique | Base technique: Replaceable hydraulic cylinders for setting adjustment | Avantage opérationnel: Allows operators to adjust crusher discharge settings quickly and safely from a central location | Impact sur le retour sur investissement: Reduces downtime for product size changes from hours to minutes, maximizing operational flexibility

Système de graissage centralisé | Base technique: Automated lubrication points routed to a single station | Avantage opérationnel: Ensures critical bearing points are lubricated consistently, even in dusty conditions | Impact sur le retour sur investissement: Prevents premature bearing failure—a leading cause of unplanned downtime—and extends service intervals

CorrosionResistant Component Finishing | Base technique: Specialized paint systems and protective treatments on electricals | Avantage opérationnel: Mitigates accelerated wear from Lagos’s coastal humidity and saline air | Impact sur le retour sur investissement: Protects component integrity, maintaining resale value and reducing cosmetic maintenance

4. AVANTAGES CONCURRENTIELS

| Mesure de performances | Norme de l'industrie (Basic Jaw Crusher) | Primary Jaw Crusher Solution (with VGF) | Avantage (% amélioration) |
| : | : | : | : |
| Disponibilité (Temps de disponibilité)| 8588% (prone to clogging & problèmes de roulement) |> 92% (with integrated prescreen & robust lube system) |> +5% disponibilité |
| Coût d'usure par tonne| Naira 120 150/ton on abrasive granite| Naira 95 110/tonne (optimized chamber & liner design)| > 20% coût d'exploitation |
| Efficacité énergétique| Lower due to frequent idling & clogging cycles| Higher due to consistent load & prescreening|< 8% fuel consumption per ton |
| Setup/Adjustment Time| Manual shim adjustment (46 heures)| Hydraulic toggle adjustment (<30 minutes)| ~90% time savings |

5. SPÉCIFICATIONS TECHNIQUES

Plage de capacité du modèle: 300 800 tonnes par heure (TPH), depending on feed material and closed side setting (CSS).
Ouverture d'alimentation: 1070mm x 760mm (42" x 30") capable of accepting large shot rock.
Exigences d'alimentation: Dieselelectric or direct diesel drive options; typical prime mover range of 250350 kW to handle Lagos grid fluctuations.
Spécifications des matériaux clés: Manganese steel jaw liners; highstrength steel fabricated frame; hardened steel eccentric shaft.
Dimensions physiques (Env.): Length ~15m (with feeder), Largeur ~3m, Height ~4m.
Plage de fonctionnement environnementale: Engineered for ambient temperatures of 20°C to 45°C and up to 95% relative humidity.

6. SCÉNARIOS D'APPLICATION

Exploitation d'une carrière de granit, Lekki Axis | Défi: Inconsistent output from aging primary crusher causing bottlenecks; high liner wear costs from direct feeding of unscreened material. Frequent breakdowns delayed supply to major road projects. Solution: Implementation of a new Primary Jaw Crusher with an integrated heavyduty VGF system. Results Throughput stabilized at over 550 TPH; wear part lifecycle extended by 35%. Achieved consistent daily targets, securing a repeat supply contract with a margin improvement of 15%.

Aggregate Supply for Concrete Batching Plants, Ibadan Expressway Corridor Challenge A new quarry development needed reliable primary crushing but lacked extensive technical staff onsite. Solution Deployment of a turnkey primary crushing station featuring the jaw crusher with automated lubrication and hydraulic adjustment systems for simplified operation Results Plant commissioned within two weeks; operators managed routine adjustments without specialist intervention Availability exceeded projections in the first quarter enabling faster market penetration

7. CONSIDÉRATIONS COMMERCIALES

Niveaux de tarification: Configured based on drive system (diesel vs electric), feeder size, and level of onboard automation/telemetry.
Fonctionnalités facultatives: Dust suppression systems integrated into VGF; onboard generator sets for full independence; remote monitoring telematics for performance tracking.
Forfaits de services: Tiered plans available from basic scheduled maintenance kits to comprehensive annual contracts including liner changes bearing inspections priority parts dispatch
Financing Options Equipment leasing structures tailored for Nigerian businesses partnership models with key distributors local bank financing introductions available

8. FAQ

1. Is this equipment compatible with our existing secondary cone crusher and screening plant?
Yes these primary jaw crushers are engineered as modular units Standard discharge heights conveyor widths ensure compatibility with most downstream processing equipment specifications will be verified during project planning

2. What is the expected impact on our overall plant noise levels?
Field data shows that modern units equipped with integrated VGFs produce noise profiles within typical quarry operational limits Specific dbA ratings at key points are provided in the detailed technical dossier

3 How does this address spare parts availability challenges in Nigeria?
We maintain strategic consignment stock of critical wear parts jaw liners toggle seats bearings at our Lagos partner facility This guarantees availability typically within hours not weeks

4 Quelle formation est dispensée à notre équipe opérationnelle?
Comprehensive onsite commissioning includes operational safety maintenance procedure training Documentation includes detailed manuals We also offer optional advanced troubleshooting workshops

5 Can this machine process very wet lateritic material common in some areas?
While designed primarily for hard rock an integrated VGF significantly improves handling of sticky material For operations with very high clay content specific feeder modifications can be discussed as an option