1. PAINPOINT DRIVEN OPENING

Are escalating operational costs and unpredictable downtime eroding your quarry’s profit margins? For commercial quarry operators in Lagos and across Nigeria, the procurement of reliable, highperformance equipment is not just a purchase—it’s a critical strategic decision that dictates site viability. Common challenges include:

Excessive Fuel & Maintenance Costs: Aging or inefficient primary crushing equipment consumes disproportionate fuel and requires frequent, costly part replacements, directly impacting your cost per ton.
Unplanned Downtime from Feed Contamination: Lagos quarry sites often deal with heterogeneous feed material containing clay, laterite, and oversized boulders that cause blockages and damage in standard crushers, leading to hours of lost production.
Inconsistent Output Gradation: Inability to precisely control product size results in excess waste or offspec aggregate that cannot be sold at premium rates, sacrificing revenue.
High Labor Dependency for Setup & Adjustment: Manual adjustment of crusher settings for different product requirements is timeconsuming, unsafe, and introduces human error, reducing overall plant throughput.

What if your next equipment investment could directly address these pain points? The solution lies in specifying the right primary crushing station engineered for the specific demands of Nigerian granite and hard rock operations.

2. PRODUCT OVERVIEW: PRIMARY JAW CRUSHING STATION FOR QUARRY APPLICATIONS

This product line encompasses heavyduty, fixed or mobile primary jaw crushers designed as the first reduction stage in aggregate production. The operational workflow is engineered for continuous, highvolume processing:

1. Loading & Feed: Quarryrun material (0800mm) is fed via excavator or wheel loader into a vibrating grizzly feeder (VGF).
2. PreScreening & ByPass: The VGF removes natural fines and bypasses subsize material to optimize crusher capacity and reduce wear.
3. Primary Reduction: The core jaw crusher utilizes compressive force to break large boulders into manageable sub200mm stone.
4. Discharge & Conveyance: Crushed material is discharged onto a main product conveyor for transport to secondary crushing or stockpiling.

Application Scope: Ideal for highabrasion mining of granite, basalt, and other hard rock. Suited for both new greenfield quarry sites in Lagos and the upgrading of existing fixed plants.

Key Limitations: Not designed for very soft or nonabrasive materials like limestone where alternative crusher types may offer higher efficiency. Requires stable, prepared ground or suitable trailer mounting for mobile units.

3. CORE FEATURES

HeavyDuty Roller Bearing Design | Technical Basis: Spherical selfaligning roller bearings vs. standard bronze bushings | Operational Benefit: Handles peak loads from uncrushable material without catastrophic failure; allows fullforce crushing with lower friction | ROI Impact: Field data shows up to 30% longer bearing life, reducing part replacement costs and associated downtime.

Integrated Vibrating Grizzly Feeder (VGF) | Technical Basis: Stepped grizzly bars with adjustable spacing | Operational Benefit: Removes fines prior to crushing, increasing throughput; prevents crusher packing; protects belt from impact damage | ROI Impact: Improves overall plant capacity by 1525% by ensuring the crusher processes only oversized material.

Hydraulic Adjustment & Clearing | Technical Basis: Dualacting hydraulic cylinders for toggle tension and chamber clearing | Operational Benefit: Enables quick, remote adjustment of CSS (Closed Side Setting) for product size changes; automatically reverses to clear blockages in minutes | ROI Impact: Eliminates manual shim adjustment, reducing downtime for size changes from hours to under 30 minutes.

QuarryGrade Steel Frame & Jaw Plates | Technical Basis: Fabricated from hightensile steel with bolted (not welded) stress sections; manganese steel jaw dies | Operational Benefit: Withstands constant vibration and shock loading; jaw plates offer optimal balance between wear life and crushability | ROI Impact: Extended structural integrity reduces risk of frame fatigue cracks; optimized jaw design lowers costperton for wear parts.

Direct Drive & Advanced Crushing Chamber | Technical Basis: Direct TEFC motor drive via Vbelts; optimized nip angle and tooth profile on jaw dies | Operational Benefit: Maximizes power transmission efficiency; promotes aggressive crushing action with reduced slabby product | ROI Impact: Industry testing demonstrates up to 10% lower fuel consumption compared to indirect drives; produces more cubicle product for better yield.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard Solution | This Primary Jaw Crushing Station Solution | Advantage (% Improvement) |
| : | : | : | : |
| Availability / Uptime | ~85%, with frequent liner/bearing checks| >92%, facilitated by hydraulic clearing & robust bearing design| +8% more productive hours |
| Fuel Consumption per 1000 Tons| Baseline (100%)| Reduced consumption via direct drive & prescreening| 1015% improvement |
| Wear Part Life (Jaw Plates)| Subject to feed contamination| Extended life via optimized kinematics & material grade| Up to 20% longer life |
| Time for CSS Adjustment| Manual shim system (24 hours)| Hydraulic adjustment system (<30 minutes)| ~85% faster |
| Throughput of Hard Abrasive Rock| Varies with feed segregation| Consistent high yield due to integrated VGF & aggressive chamber| 1525% increase |

5. TECHNICAL SPECIFICATIONS

Crushing Capacity Range: 300 1,200 tonnes per hour (TPH), depending on model and feed material.
Crusher Feed Opening: From 900mm x 600mm up to 1500mm x 1200mm.
Power Requirements: Total installed power (Crusher + Feeder + Conveyors) ranges from 150 kW to 400 kW. Configured for standard Nigerian industrial power supply or dedicated diesel generator sets.
Material Specifications: Main frame constructed from ST52 steel; jaw plates from Mn18Cr2 or Mn22Cr2 premium manganese steel.
Physical Dimensions (Example Fixed Plant): Approx. Length: 12m – 18m; Width: 3m – 4.5m; Height: 4m – 5m. Mobile configurations available.
Environmental Operating Range: Designed for ambient temperatures of +5°C to +45°C and high humidity conditions typical of Lagos. Dust suppression system connections are standard.

6. APPLICATION SCENARIOS

Granite Quarry Expansion, Ogun State | Challenge: An existing site needed to increase primary output by over 40% without expanding its land footprint or primary excavator fleet. The bottleneck was an older jaw crusher prone to blockage with clayladen feed.| Solution: Procurement and installation of a new highcapacity primary jaw crushing station with an aggressive feeder length and prescreening section.| Results: Throughput increased by 48%. Blockages were eliminated due to effective fines removal. The consistent product size fed a new secondary cone crusher at optimal capacity, meeting the expansion target within the same operating area.

New Basalt Quarry Development, Lagos Fringe | Challenge: A new greenfield site required a faststartup, lowmaintenance primary solution that could handle highly variable basalt boulder sizes while minimizing operational staffing.| Solution: Deployment of a mobile primary jaw crushing station with onboard hydraulic setting adjustment and walkways/platforms for safe maintenance access.| Results: The site achieved full production output in under two weeks from equipment arrival. One operator can manage CSS adjustments safely from ground level, optimizing labor allocation across the new plant.

7. COMMERCIAL CONSIDERATIONS

Pricing Tiers: Solutions are tiered based on capacity (TPH) and configuration (Fixed SkidMount vs.Tracked Mobile). Entrylevel fixed stations begin at a capital investment suited for midsized quarries.
Optional Features: Upgrades include automated lubrication systems, heavierduty apron feeders vs.VGF , advanced dust encapsulation packages,and remote monitoring telematics.
Service Packages: Choose from basic commissioning packages upto comprehensive annual maintenance contracts including scheduled wear part inspection/replacement,vibration analysis,and priority technical support.
Financing Options: Flexible procurement paths are available including outright purchase,fleet leasing agreements,and tailored financing through partner institutions designed forequipment acquisitionwith structured repayment alignedto projected cash flow

8.FAQ

1.Q:What is lead timefor procurement deliveryand commissioningof afixedprimaryjawcrushingstationinLagos?
A.Delivery timesvaryby model specificationand customizationbutstandard unitsare typicallyavailablewithin1620weeksfromorderconfirmation.Commissioningby certified engineersis included

2.Q:Canyourprimarycrushersintegratewithourexistingsecondaryconeorscreenplant?
A Yes.Design engineerswillreviewyourcurrentplantlayoutand conveyor specificationsto ensure seamless integrationincludingcontrolsystem interfacingfor coordinated operation

3.Q:Whatistheexpectedcostpertonforwearparts(jawplates side liners)?
A.Wearpartcostis highlydependentonfeedmaterialabrasiveness(eggranitevsbasalt).Basedonfieldperformancein similarNigerianquarriesoperatorsreportwearpartcosts rangingfrom₦Xto₦Ypertonofcrushedoutput

4.Q:Doyouoffertrainingforourmaintenanceteamonthis newequipment?
A.Comprehensiveonsiteoperatorandmaintenancetrainingisastandardcomponentofourcommissioningpackagecoveringdailychecks routine maintenance proceduresandsafeadjustment protocols

5.Q:Arethereanyhidden costswe shouldbudgetforbeyondthe initialpurchaseprice?
A.We provideatransparentcapitalquote.Allpotentialadditionalcostswillbediscussed upfrontsuchasfoundationcivilworks(iffixed)specializedliftingequipmentforinstallationorincreasedpowerconnectioncapacityrequirements