1. PAINPOINT DRIVEN OPENING

Are escalating operational costs and unpredictable downtime eroding your project margins? For plant managers and contractors, the core challenges in primary size reduction are clear: excessive wear part consumption leading to volatile costperton metrics, unplanned stoppages for maintenance that disrupt entire processing lines, and insufficient throughput that creates bottlenecks downstream. Furthermore, inconsistent product gradation can compromise the quality of feed for secondary crushers or final products. When your stone crusher machine is unreliable, the costs are quantifiable: hours of lost production, overtime labor for emergency repairs, and premature capital expenditure on replacements. What if your primary crusher could deliver predictable performance, reduce your largest variable costs, and maintain consistent output to keep your entire operation profitable?

2. PRODUCT OVERVIEW

This product line encompasses heavyduty primary jaw crushers engineered for the initial reduction of large runofmine (ROM) materials like granite, basalt, and iron ore. The operational workflow is straightforward yet robust: 1) Material is fed into the vibrating grizzly feeder (VGF) which bypasses fines to optimize crushing chamber efficiency. 2) Oversize material enters the deep crushing chamber where a highstrength moving jaw compresses it against a fixed jaw. 3) The crushed material discharges onto the main conveyor at a preset CSS (Closed Side Setting), ensuring a controlled topsize product for the next stage. These machines are designed for stationary plant installation or modular setups in quarrying, mining, and largescale demolition recycling. They are not suitable as standalone units for producing finished aggregates without secondary and tertiary crushing stages.

3. CORE FEATURES

Modular Jaw Die Design | Technical Basis: Segmented, reversible manganese steel wear plates secured with mechanical wedges. | Operational Benefit: Your maintenance team can replace highwear sections in shifts, not days, without removing the entire jaw holder. Rotation of dies extends service life by up to 30%. | ROI Impact: Reduces wear part inventory costs and cuts planned downtime by approximately 40% compared to monolithic jaw designs.

Hydraulic Toggle & Adjustment System | Technical Basis: Replaces traditional mechanical toggle plates with a dualacting hydraulic cylinder. | Operational Benefit: Enables remote adjustment of the CSS for product size changes and provides automatic overload protection by releasing tramp iron uncrushables. | ROI Impact: Eliminates risk of catastrophic damage from tramp metal; reduces adjustment time from hours to minutes, increasing plant flexibility.

Deep Symmetrical Crushing Chamber | Technical Basis: Optimized kinematics and a long feed opening proportional to machine width. | Operational Benefit: Promotes natural rockonrock attrition in the upper chamber, reducing wear on jaws, and allows for higher capacity with less bridging. | ROI Impact: Increases throughput by 1015% for equivalent motor power while lowering abrasive wear costs.

Integrated Motor Base & Belt Guard | Technical Basis: Unified steel fabrication housing crusher, drive motor(s), and Vbelt transmission. | Operational Benefit: Simplifies installation with prealigned components and provides superior safety compliance with full guarding from day one. | ROI Impact: Cuts installation time and cost by up to 25%, accelerating commissioning.

Advanced Bearing Housing Design | Technical Basis: Spherical roller bearings mounted in rigid, machined housings separate from the main frame structure.| Operational Benefit: Ensures precise bearing alignment under load for extended bearing life; allows for easier bearing inspection and replacement.| ROI Impact: Field data shows bearing service life improvements of 2035%, directly lowering major component replacement costs.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard | Our Jaw Crusher Solution | Advantage (% improvement) |
| : | : | : | : |
| Wear Part Life (Abrasive Rock) | 120,000 150,000 tons per set | 180,000 200,000 tons per set | +30% |
| Mean Time Between Failure (MTBF) | ~1,200 operating hours | ~1,700 operating hours| +40% |
| Throughput at Same CSS & Power| Baseline (100%)| 112% 115%| +1215% |
| Planned Maintenance Downtime (Annual)| 80 100 hours| 45 60 hours| ~40% reduction |
Based on controlled testing with granite feed material.

5. TECHNICAL SPECIFICATIONS

Model Range & Capacity: JC120 (120280 TPH) to JC180 (400850 TPH), depending on feed material density and CSS.
Feed Opening: Ranges from 1200mm x 800mm to 1800mm x 1400mm.
Power Requirements: Electric motor drive from 90 kW to 250 kW (125 HP to 350 HP), configured for global voltage standards (400V/50Hz or 460V/60Hz).
Material Specifications: Highstrength welded steel frame (ASTM A36); Fixed and moving jaws fabricated from stressrelieved steel with boltedon AR400 abrasionresistant liners; Manganese steel jaw dies (14%18% Mn).
Physical Dimensions: Varies by model; approximate footprint range from L8m x W3m x H3m to L12m x W4m x H4m.
Environmental Operating Range: Designed for ambient temperatures from 20°C to +45°C; dustsealed bearings; optional Arctic or tropical packages available.

6. APPLICATION SCENARIOS

Hard Rock Quarrying – Granite Aggregate Production | Challenge: A quarry faced excessive downtime every 68 weeks to replace monolithic jaw dies on their primary crusher (~36 hours downtime), creating costly production shortfalls.| Solution: Replacement with our modular jaw die crusher model JC150.| Results: Downtime for wear part changes reduced to under 16 hours per event via targeted die section replacement. Annual crusher availability increased by over 5%, translating to an additional ~12,000 tons of crushed base material produced annually.

Iron Ore Processing – Primary Crushing Station| Challenge: Unpredictable tramp steel from mining operations caused frequent shearing of mechanical toggle plates on the primary crusher, resulting in unplanned stops averaging twice monthly.| Solution:| Installation of our hydraulic toggle jaw crusher model JC180 equipped with tramp iron release system.| Results:| Complete elimination of downtime related to tramp metal events over an18month period.The hydraulic system automatically reset after each event.Cost savings were realized through avoided downtime,labor,and replacement toggle plates.

7.COMMERCIAL CONSIDERATIONS

Our pricing structure is based on a tiered model corresponding to machine size(JC120JC180).Base equipment includes crusher,motor base,Vbelt drive,and standard guarding.Optional features that provide value include automated grease lubrication systems,variable frequency drives(VFDs)for soft start,and integrated dust suppression spray bars.We offer three levels of service packages:Bronze(parts only),Silver(parts+remote technical support),and Gold(full annual inspection+parts+priority dispatch).Financing options are available through partner institutions including operating lease structures that preserve capital or fixedterm purchase plans.

8.FAQ

Q1:What is the compatibility of these machines with my existing secondary crushing circuit?
A1:The discharge gradation is precisely controlled by adjusting the CSS.They are engineered as standard primary units designedto feed cone or impact crushers.Common discharge settings produce a minus6"to minus8"product ideal formost secondary stages.Plant layout drawings can be reviewed forengineering compatibility.

Q2:What impact will this have on my overall plant efficiency?
A2:The primary benefit is predictability.Reduced unplanned stops at this first critical stage prevent cascading downtime throughoutyour plant.Field data indicates clients achievea24%overall plant availability increase due toreliableprimary crushing performance.This directly increases total output without adding shiftsor other equipment.

Q3:What are typical lead times,and what does delivery include?
A3.For standard models lead times range between1016weeks exworks.Delivery includes themachine disassembled into major subassemblies(crusher body,support legs,motor base,jaw dies packed separately) suitablefor road transport.Comprehensive assembly drawingsand foundation plansare provided aheadof shipment

Q4:What warranty terms apply?
A4.We providea24month warrantyon all structural components against defectsin materialsand workmanship.Wear parts(jaw dies,bearings etc.)are covered fora periodof6months under normal operating conditions.Detailed warranty termsare specified inthe commercial agreement

Q5:What levelof technical supportis available during commissioning?
A5.Commissioning supportis strongly recommended.Oura Silverand Gold service packages include optional onsite commissioning supervisionby afactory engineerfor upto5days.This ensures correct installation,lubrication,and initial setupfor optimal performance