1. PAINPOINT DRIVEN OPENING

Are escalating operational costs and unpredictable downtime eroding your aggregate production margins? For plant managers and engineering contractors, the primary crushing stage is often the source of critical bottlenecks. Common challenges include:

Unscheduled Downtime: Frequent liner changes and unexpected mechanical failures halt your entire processing line, costing thousands per hour in lost production.
High Maintenance Costs: Excessive wear on crusher components due to improper crushing action or abrasive feed material leads to unsustainable parts replacement cycles.
Inconsistent Output & Product Shape: Poorly graded aggregate with excessive flaky material fails to meet stringent project specifications, resulting in product rejection or reduced value.
Energy Inefficiency: Older crushing technology consumes disproportionate power relative to throughput, directly impacting your bottom line.
Rigid Configuration Limitations: Fixed crushers cannot adapt to changing feed sizes or product requirements without significant manual adjustment and time investment.

Is your current primary crushing solution a reliable asset or a constant source of operational risk? The right stone crusher machine is not merely an equipment purchase; it is a strategic decision for longterm site profitability.

2. PRODUCT OVERVIEW: Primary Jaw Crusher

The cornerstone of any hard rock aggregate or mining operation, a modern primary jaw crusher is engineered for firststage reduction of large, runofquarry material. Its robust design accepts feed sizes up to 1 meter and reduces them to a manageable diameter for secondary processing.

Operational Workflow:
1. Feed Intake: Large dump trucks deposit raw, blasted rock into the vibrating grizzly feeder (VGF), which scalps out fine material and directs oversize to the crusher.
2. Compressive Crushing: The VGF conveys material into the fixed jaw chamber, where a reciprocating moving jaw exerts immense compressive force against a stationary jaw plate.
3. Discharge Setting Adjustment: The crushed product exits through an adjustable gap at the bottom (the closedside setting), determining the maximum output size.
4. Material Transfer: The crushed stone is discharged onto a main conveyor belt for transport to secondary screening and crushing stages.

Application Scope & Limitations:
Scope: Ideal for primary reduction of hard, abrasive materials like granite, basalt, and iron ore in quarrying, mining, and largescale construction projects.
Limitations: Not suitable for sticky or plastic materials (e.g., clayrich ore). Requires a stable foundation and significant capital investment compared to smaller mobile units. Maximum reduction ratio is typically 6:1 to 8:1.

3. CORE FEATURES

Deep Crushing Chamber & Optimized Kinematics | Technical Basis: Increased nip angle and longer vertical jaw travel | Operational Benefit: Enables higher throughput capacity and more aggressive reduction in a single pass | ROI Impact: Reduces need for prescreening or additional primary crushing stages, lowering CAPEX

HeavyDuty Fabricated Frame | Technical Basis: Welded steel plate construction with reinforced stress points | Operational Benefit: Provides exceptional durability against shock loads from uncrushable material (tramp iron) | ROI Impact: Minimizes risk of catastrophic frame failure, extending machine service life beyond 20 years

Hydraulic Toggle Adjustment System | Technical Basis: Replaces traditional mechanical toggle plates with hydraulic cylinders | Operational Benefit: Allows remote adjustment of the crusher discharge setting and provides automatic overload protection by releasing under excessive pressure | ROI Impact: Reduces downtime for setting changes from hours to minutes and prevents damage from uncrushables

WedgeLock Jaw Plate Fastening System | Technical Basis: Mechanically locked wedges secure jaw plates without backing resin | Operational Benefit: Enables faster, safer jaw liner changes with standard tools | ROI Impact: Cuts liner replacement downtime by up to 50%, increasing annual operating hours

HighInertia Flywheels | Technical Basis: Heavy cast flywheels store kinetic energy during the noncrushing half of the cycle | Operational Benefit: Smoothes peak power demands, ensuring consistent crushing force and reducing motor strain | ROI Impact: Lowers energy consumption per ton of crushed material by optimizing motor load

Integrated Motor Mount & Drive Guard | Technical Basis: Unified base frame for crusher, motor, and Vbelt drive guards | Operational Benefit: Simplifies installation alignment and provides complete operator safety protection as standard | ROI Impact: Reduces installation time and cost while ensuring compliance with site safety regulations

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard (Average) | Our Primary Jaw Crusher Solution | Advantage (% Improvement) |
| : | : | : | : |
| Liner Life (Abrasive Granite) | 120,000 150,000 tons | 180,000 220,000 tons | +40% (Extended wear life) |
| Time for CSS Adjustment| 45 60 minutes| 96%| +4 percentage points |
| Noise Level at Operator Station| ~90 dBA| <85 dBA| Improved worksite compliance |

5. TECHNICAL SPECIFICATIONS

Model Reference: JC140
Feed Opening: 56” x 40” (1420mm x 1015mm)
Maximum Feed Size: 39” (990mm) edge length
Closed Side Setting Range: 4” – 12” (100mm – 300mm)
Capacity Range (Varies by CSS & Material): 450 – 850 STPH
Drive Power Requirement: 250 HP / 185 kW electric motor
Total Weight (Crusher Only): 95,000 lbs / 43,000 kg
Key Material Specifications: Main frame – Highstrength steel plate; Jaw dies – Manganese steel alloy (14%18%); Eccentric shaft – Forged alloy steel; Bearings – Spherical roller bearings.
Environmental Operating Range: Designed for ambient temperatures from 20°C to +45°C (4°F to +113°F). Dust seals are standard.

6. APPLICATION SCENARIOS

Granite Quarry Expansion Project

Challenge: A southeastern US quarry needed to increase primary capacity by over 30% but faced space constraints that prevented adding a second parallel line. Their existing crusher could not achieve higher throughput without sacrificing product gradation.
Solution: Implementation of a highcapacity JC140 jaw crusher with an optimized deepchamber design.
Results: Throughput increased by 35% while maintaining a consistent minus6inch product. The improved kinematics yielded better particle shape for secondary cone crusher feed.

Urban Infrastructure Recycling Hub

Challenge: Processing demolished concrete and reinforced asphalt with frequent tramp metal contamination led to weekly downtime events from toggle plate breakage in their old jaw crusher.
Solution: Replacement with a new hydraulic toggleequipped jaw crusher.
Results: Automatic release of uncrushable metal eliminated breakerrelated stoppages. Downtime was reduced by an estimated 300 hours annually, allowing the hub to meet tight municipal project deadlines reliably.

7. COMMERCIAL CONSIDERATIONS

Our stone crushers are offered in clear pricing tiers based on size and capability:
Standard Series (Up to ~600 TPH): Base configuration with core features outlined above.
HeavyDuty Series (600+ TPH): Includes additional reinforcements for extremeduty cycles in mining applications.

Optional features include automated lubrication systems , dust suppression spray bars , various manganese steel profiles for specific applications ,and different motor configurations .

We support your investment with three service packages:
1. Basic Warranty & Parts Support
2. Planned Maintenance Agreement including annual inspection
3 Comprehensive Lifecycle Support including remote monitoring integration

Financing options include capital lease , operating lease ,and loan structures through our partner institutions , typically available for terms of 3660 months.

8 FAQ

Q What are my foundation requirements for this stone crusher?
A Detailed civil engineering drawings are provided with each machine Our technical team can review your site plans Foundation requirements are significant due to dynamic loads; typical concrete volume exceeds 60 cubic yards

Q Can this crusher handle recycled concrete aggregate RCA ?
A Yes but we recommend specifying optional extended dust seals We advise removing rebar as much as possible before feeding though our hydraulic toggle provides protection against occasional metal ingress

Q How does the hydraulic toggle system affect maintenance?
A It simplifies maintenance There are no mechanical toggle plates tension rods or springs to adjust or replace Routine maintenance focuses on checking hydraulic fluid levels and cylinder condition

Q What is your lead time from order placement?
A For standard models lead time is typically 1620 weeks Custom configurations may require additional time We provide regular milestone updates throughout the manufacturing process

Q Are training services included?
A Yes we provide comprehensive onsite operator training covering startup procedures daily checks safe operation basic troubleshooting Recommended maintenance schedules are clearly documented