1. PAINPOINT DRIVEN OPENING

Managing a Chinese stone quarry crushing plant presents distinct operational and financial pressures. Are you facing these common challenges?
Unplanned Downtime: Frequent mechanical failures in crushers or conveyors halt your entire production line, costing thousands per hour in lost output and idle labor.
Inconsistent Product Gradation: Fluctuations in final aggregate size lead to product rejection, forcing reprocessing and damaging your reputation with asphalt and concrete batch plant customers.
High Wear Part Consumption: The abrasive nature of granite, basalt, or limestone rapidly degrades liners, jaws, and blow bars, creating unsustainable costs for spare parts inventory and replacement labor.
Energy Inefficiency: Older, singlestage or poorly configured crushing circuits consume excessive power per ton of processed material, eroding profit margins.
Dust and Noise Compliance: Increasingly stringent environmental regulations require significant investment in control systems to avoid fines and operational shutdowns.

How do you transform these cost centers into controlled variables? The solution lies in specifying a modern, integrated Chinese Stone Quarry Crushing Plant designed for total cost of ownership.

2. PRODUCT OVERVIEW

A modern Chinese Stone Quarry Crushing Plant is a stationary or semimobile hard rock processing system engineered to transform blasted quarry feed (typically 0750mm) into precisely graded commercial aggregates (e.g., 05mm, 510mm, 1020mm). It is not a single machine but a synchronized circuit of primary, secondary, and tertiary crushing stages with integrated screening and material handling.

Operational Workflow:
1. Primary Reduction: Dump trucks feed blasted rock into a primary jaw crusher for initial size reduction.
2. PreScreening & Secondary Crushing: A vibrating grizzly feeder removes fines before coarse material is conveyed to a secondary cone crusher for further reduction.
3. ClosedCircuit Tertiary Crushing & Screening: Material is then screened; oversize is recirculated through a tertiary cone or impact crusher in a closed loop to achieve precise final gradation.
4. Stockpiling: Correctly sized aggregates are conveyed to designated stockpiles via radial stackers.

Application Scope & Limitations:
Scope: Optimized for mediumtohigh volume production (150800 TPH) of construction aggregates from hard rock (compressive strength >150MPa). Ideal for largescale infrastructure projects requiring consistent, highspecification material.
Limitations: Not suitable for soft minerals or sandonly production without significant circuit modification. Requires substantial capital investment and prepared site infrastructure (foundations, power supply).

3. CORE FEATURES

Intelligent Control System | Technical Basis: PLCbased automation with load & level sensors | Operational Benefit: Optimizes feed rates and crusher settings in realtime to prevent choking or running empty | ROI Impact: Field data shows up to 15% higher throughput and consistent product quality with less operator intervention.

HeavyDuty Crusher Construction | Technical Basis: Highstrength alloy steel castings with reinforced stress points | Operational Benefit: Withstands continuous shock loading from hard rock, extending major component life | ROI Impact: Reduces risk of catastrophic frame failure, minimizing multiday downtime events.

Modular Conveyor Design | Technical Basis: Bolttogether sections with standardized idlers & drives | Operational Benefit: Simplifies maintenance and allows for future plant reconfiguration or expansion | ROI Impact: Cuts conveyor repair time by an average of 30% versus welded designs.

Advanced Dust Suppression Integration | Technical Basis: Strategically placed nozzles with solenoid valves tied to crusher operation | Operational Benefit: Activates only when material is moving, effectively suppressing dust at source points | ROI Impact: Reduces water consumption by ~40% while ensuring compliance, avoiding regulatory fines.

Centralized Greasing & Lubrication | Technical Basis: Automated system delivering precise grease volumes to multiple bearing points | Operational Benefit: Ensures critical bearings are lubricated without manual error during operation | ROI Impact: Industry testing demonstrates a 50% reduction in bearingrelated failures.

Hybrid Power Configuration Options | Technical Basis: Plant sections can be driven by electric motors or diesel generators | Operational Benefit: Provides operational flexibility in quarries with unstable grid power or during phased electrification | ROI Impact: Enables continuous operation; fuel savings can reach 60% when running on grid power.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard (Legacy Plants) | Our Chinese Stone Quarry Crushing Plant Solution | Advantage (% Improvement) |
| : | : | : | : |
| Overall Equipment Effectiveness (OEE) | ~7075% due to unplanned stops & speed losses| Targeted >82% via robust design & automation| +1015% sustained availability |
| Cost Per Ton (Operating)| High variance; elevated wear part & energy cost| Controlled through optimized chamber designs & efficient drives| Documented reductions of 1825% |
| Wear Metal Consumption (g/ton)| Varies widely; often not systematically tracked| Lower specific consumption via applicationengineered alloys| Up to 30% improvement based on rock abrasivity |
| Setup / Reconfiguration Time| Weeks for major layout changes| Days due to modular conveyors & preengineered foundations| Time savings exceeding 65% |
| Fine Aggregate Yield (05mm)| Often treated as byproduct with low value| Maximized through dedicated tertiary shaping circuit| Can increase saleable product yield by up to 20% |

5. TECHNICAL SPECIFICATIONS

Designed Capacity Range: Configurable from 200 to 600 Tons Per Hour (TPH), depending on rock hardness (<180MPa compressive strength) and required product mix.
Primary Crusher Options: Jaw Crusher (PEV Series), Feed Opening from 750x1060mm up to 1500x2000mm.
Secondary/Tertiary Crushers: MultiCylinder Hydraulic Cone Crushers (HPS Series), with chambers optimized for either secondary reduction or tertiary shaping.
Power Requirements: Total installed power typically ranges from 450kW to 900kW for the full electric configuration. Primary voltage requirement: 10kV/50Hz.
Key Material Specifications: Main frame fabricated from Q345B steel; Crusher mantles/liners available in Mn18Cr2 or TIC insert alloys for extended service life.
Typical Plant Footprint: Approximately 80m (L) x 45m (W) for a complete threestage circuit. Height restrictions apply due to screen towers.
Environmental Operating Range: Designed for ambient temperatures from 20°C to +45°C. Dust emission control achieves <20mg/m³ at point of discharge.

6. APPLICATION SCENARIOS

Highway Base Layer Production

Challenge: A provincial highway project required over 2 million tons of precisely graded crushed granite (31.5mm down). The contractor's existing plant could not maintain consistent gradation, leading to compaction issues on site.
Solution: Implementation of a turnkey Chinese Stone Quarry Crushing Plant featuring an advanced threestage circuit with two screening decks for tight control.
Results: Achieved consistent production meeting GB/T 14685 standards. Plant availability reached 85%, delivering the required volume two weeks ahead of schedule.

Urban Readymix Concrete Aggregate Supply

Challenge: A quarry supplying metroarea concrete batching plants faced complaints about flaky particle shape and excessive fines (<0.075mm) impacting concrete workability and strength.
Solution: Integration of a specialized tertiary shaping cone crusher in closed circuit configuration within their existing Chinese Stone Quarry Crushing Plant upgrade.
Results: Particle cubicity rating improved by over 35%. Fines generation was reduced by 22%, resulting in premium pricing for aggregates and reduced cement demand for customers.

7. COMMERCIAL CONSIDERATIONS

Our Chinese Stone Quarry Crushing Plants are offered under clear commercial frameworks:
Pricing Tiers: Based on capacity and complexity
Tier I (200300 TPH): Standardized threestage plant
Tier II (300500 TPH): Semicustomized plant with highercapacity units
Tier III (500+ TPH): Fully customized circuit engineering
Optional Features: Onboard air compressors, automatic metal detection/tramp iron relief systems, advanced vibration monitoring sensors, enclosed conveyor galleries.
Service Packages: Choose from annual inspection plans, guaranteed spare parts delivery programs (e.g., 48hour critical parts dispatch), or fullsite operation & maintenance contracts.
Financing Options: Collaborate with our affiliated financial partners for leasing structures or equipment loans tailored to match your project cash flow timelines.

8. FAQ

1. Q1 Is this crushing plant compatible with our existing primary jaw crusher?
A1 Potentially yes. Our engineering team specializes in designing downstream secondary/tertiary circuits that integrate with existing primary units after a thorough audit of your current equipment's condition and output capabilities.

2 Q2 What is the expected impact on our daily operational labor requirements?
A2 A wellautomated Chinese Stone Quarry Crushing Plant typically requires fewer personnel for direct operation compared to older plants but may require more skilled technicians for monitoring and preventive maintenance—a net shift rather than just a reduction.

3 Q3 How long does commissioning take from delivery?
A3 For a standard configuration plant with prepared foundations, mechanical commissioning takes approximately 46 weeks followed by another week of performance testing using your site materials

4 Q4 What are the payment terms?
A4 Standard terms involve progress payments tied to key milestones such as contract signing major component shipment arrival at port FOB China factory acceptance test completion

5 Q5 Can you guarantee final product gradation curves?
A5 We guarantee that the equipment as supplied is capable of producing specified gradations within its design parameters Final product consistency however also depends on consistent feed material characteristics which we help you manage through process guidelines