1. PAINPOINT DRIVEN OPENING

Are escalating operational costs and unpredictable downtime eroding your aggregate production margins? For plant managers and engineering contractors, the core crushing stage is often the source of critical bottlenecks. Common challenges include:
Unscheduled Downtime: Frequent liner changes, component fatigue failures, and bearing seizures halt entire production lines, costing thousands per hour in lost output.
High Maintenance Costs: Reactive repair cycles consume labor hours and spare parts budgets. The cumulative cost of unplanned maintenance often exceeds the equipment's capital expense over five years.
Inconsistent Output & Product Quality: Wearrelated performance drift leads to offspec product, increasing waste and causing downstream processing issues.
Excessive Energy Consumption: Inefficient crushing chambers and drive systems result in high power draw per ton of processed material, directly impacting operating costs.
Rapid Wear Part Degradation: Abrasive or hard feed materials can decimate standard manganese steel, leading to frequent replacement cycles and high consumables expenditure.

Is your primary crushing operation a cost center or a controlled, efficient profit driver? The solution lies not just in a machine, but in an engineered system designed from the ground up for total cost of ownership.

2. PRODUCT OVERVIEW

The [Manufacturer Name] Primary Jaw Crusher is a heavyduty, stationary crushing machine engineered for the first reduction of hard rock, ore, and demolition concrete. Its robust cast steel frame and kinematics are optimized for highvolume primary crushing applications where reliability is nonnegotiable.

Operational Workflow:
1. Feed Intake: Large feed material (up to 80% of crusher gape) is loaded into the vibrating grizzly feeder (optional), which bypasses fines to increase capacity.
2. Compression Crushing: Material enters the fixed deeppitched jaw chamber where the oscillating movable jaw exerts immense compressive force against the fixed jaw.
3. Discharge: Crushed material exits through the adjustable closedside setting (CSS) at the bottom, determining final product size.
4. Material Flow: Product is conveyed to secondary screening or crushing stages.

Application Scope: Ideal for granite, basalt, iron ore, and recycled concrete in quarrying, mining, and largescale construction waste recycling plants.
Limitations: Not suitable for sticky or plastic materials (e.g., clayrich ore without preprocessing). For higher reduction ratios in a single pass or softer materials, alternative crusher types may be recommended.

3. CORE FEATURES

Deep Crushing Chamber & Aggressive Nip Angle | Technical Basis: Optimized kinematics for increased feed acceptance and reduced bridging | Operational Benefit: Higher capacity per stroke and fewer operator interventions to clear blockages | ROI Impact: Sustained throughput rates closer to nameplate capacity over a full shift.

HeavyDuty Spherical Roller Bearings | Technical Basis: Larger bearing size with L10 life calculations exceeding industry norms | Operational Benefit: Withstands peak shock loads from uncrushable material; extended service intervals | ROI Impact: Reduces risk of catastrophic bearing failure—a leading cause of extended downtime.

WedgeBased CSS Adjustment System | Technical Basis: Mechanically locked wedge system with hydraulic assist option | Operational Benefit: Quick, precise product size changes without shims; maintains setting under load | ROI Impact: Minimizes adjustment downtime from hours to minutes; ensures consistent product gradation.

BoltOn Wear Liners & Modular Frame Design | Technical Basis: Highstrength alloy steel frame with replaceable liner pockets | Operational Benefit: Simplified liner replacement; localized wear repair without major frame welding | ROI Impact: Cuts liner change labor time by up to 40% versus welded designs; protects core asset integrity.

PLCIntegrated Overload Protection (Optional) | Technical Basis: Hydraulic toggle relief system with pressure sensors linked to plant control system | Operational Benefit: Automatically clears tramp metal or uncrushables; resets without manual intervention | Operational Benefit: Prevents damage to pitman, bearings, and frame; avoids costly repairs from overload events.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard Benchmark | Our Primary Jaw Crusher Solution | Documented Advantage |
| : | : | : | : |
| Availability (Uptime) | 9294% (scheduled & unscheduled) | 96%+ (based on field service logs) | +34% Uptime |
| Manganese Steel Liner Life (Abrasive Granite) | ~450,000 MT throughput per set | ~550,000 MT throughput per set (verified) | +22% Liner Life |
| Energy Consumption per Ton Crushed| Industry average baseline (100%)| Measured reduction via power monitoring systems| 812% kWh/ton |
| Mean Time Between Failure (MTBF) Major Components| ~7,500 operating hours| >10,000 operating hours (calculated)| +33% Reliability |

5. TECHNICAL SPECIFICATIONS

Model Reference: JC120
Feed Opening: 1200mm x 850mm
Maximum Feed Size: 750mm edge length
Closed Side Setting Range: 100mm 250mm
Capacity Range (@ CSS): 300 650 MTPH (dependent on material)
Drive Power Requirement: 132 kW Electric Motor
Total Weight (Crusher Only): ~38,000 kg
Main Frame Construction: Fabricated/welded steel plate with cast steel reinforcement at highstress points.
Shaft & Bearing Specification: Forged eccentric shaft with SKF/FAG spherical roller bearings.
Operating Temperature Range: 30°C to +45°C with standard lubrication system.
Dust Management: Prepared for dry dust suppression system connection.

6. APPLICATION SCENARIOS

Hard Rock Quarrying – Granite Aggregate Production

Challenge: A granite quarry faced severe liner wear on their existing primary crusher every 8 weeks (~320k tons), causing frequent production stoppages for liner changes exceeding 24 hours each.
Solution: Installation of our JC120 Jaw Crusher with proprietary manganese steel chemistry and chamber profile optimization.
Results: Achieved an average liner life extension to 11 weeks (~440k tons). Combined with faster wedgelock changeouts (~16 hours), this increased annual crusher availability by approximately 180 productive hours.

LargeScale Construction & Demolition Waste Recycling

Challenge: A C&D recycling plant experienced chronic blockages and premature wear when processing reinforced concrete slabs with intermittent rebar mats.
Solution: Deployment of our jaw crusher equipped with the hydraulic toggle overload protection system and heavyduty grizzly feeder to scalp fines.
Results: The automated overload system cleared uncrushable rebar tangles within seconds without stopping feed. This reduced unplanned stoppages by over 70% and protected downstream conveyors from metal damage.

7. COMMERCIAL CONSIDERATIONS

Our pricing structure is based on a modular approach:
Base Equipment Tier: Includes core crusher assembly with standard motor drives and lubrication system.
Operational Readiness Tier: Base tier plus integrated motor starter panel(s), prefitted wear liners first set), basic installation toolkit.
Plant Integrated Tier: Includes optional features like hydraulic CSS adjustment system PLC interface kit automatic lubrication system

Optional features include customized wear liner profiles special alloy options for specific abrasion/corrosion environments extended warranty packages covering major components

We offer comprehensive service agreements covering scheduled maintenance inspections parts supply priority access to technical support Financing options including leasetoown capital equipment loans are available through our financial partners

8. FAQ

1. What is the compatibility with our existing secondary crushing circuit?
Our engineering team can review your current plant flow sheet Secondary crushers typically require consistent wellsized feed which our jaw’s stable discharge setting provides We ensure discharge dimensions match your downstream equipment’s optimal feed requirements

2. How will this impact our overall plant energy consumption?
Field data shows an average reduction of kWh per ton processed due to efficient drive kinematics lower friction bearings This directly reduces your operating cost per ton

3 What are typical installation lead times?
For standard models lead time ranges from XY weeks upon order confirmation We provide detailed foundation drawings site preparation requirements prior to delivery

4 Do you offer performance guarantees?
Yes we provide guaranteed minimum capacity figures based on your specific feed material analysis subject to agreed upon operating conditions These are formalized in our commercial proposal

5 What training do you provide for our maintenance crew?
We include comprehensive onsite operational training during commissioning Additionally we offer detailed maintenance manuals video libraries access to technical webinars covering routine service procedures

6 Are spare parts readily available longterm?
We maintain a global network of certified parts depots Critical wear components like liners shafts bearings are stocked under longterm supply agreements ensuring availability throughout the machine’s lifecycle