1. PAINPOINT DRIVEN OPENING

Are you managing a midtolarge scale aggregate production operation and facing persistent bottlenecks that erode profitability? For plant managers and engineering contractors, a 250300 tph stone crushing plant is a critical capital asset, yet standard configurations often introduce costly vulnerabilities.

Regulatory NonCompliance Risk: Sourcing components from multiple vendors creates a compliance gray area. A single noncompliant electrical component or material can halt shipments to regulated markets, resulting in project delays and contractual penalties.
Inconsistent Throughput & Hidden Downtime: Promised 300tph capacity often drops under realworld conditions due to feeder mismatches, crusher choke points, or screening inefficiencies. This 1015% deficit translates to thousands of tons of lost production monthly.
Unscheduled Maintenance Spikes: Plants built with offtheshelf, nonintegrated components suffer from uneven wear and premature failures. Unplanned downtime for crusher liner changes or conveyor belt repairs directly impacts your costperton metric.
Energy Intensity & Operational Costs: Inefficient drive systems and poorly optimized crushing chambers consume excess power. For a plant running 16 hours/day, even a 5% overconsumption leads to a significant annual energy cost burden.

The central question is: how do you achieve guaranteed, compliant throughput without sacrificing operational flexibility or facing unpredictable lifecycle costs?

2. PRODUCT OVERVIEW

This product describes a fully integrated, Rohs Compliant 250300tph Stone Crushing Plant. It is a stationary or semimobile crushing and screening circuit engineered as a unified system from primary feed to final product stockpiling.

Operational Workflow:
1. Primary Reduction: Runofquarry material (≤750mm) is fed via a vibrating grizzly feeder to a primary jaw crusher, achieving the first stage of size reduction.
2. Intermediate Crushing & Screening: Crushed material is conveyed to a secondary cone crusher. The output is then screened; oversize material is recirculated back to the secondary crusher (closedcircuit), while correctly sized material moves forward.
3. Tertiary Shaping & Final Sizing: For highquality chip and sand production, a tertiary vertical shaft impact (VSI) crusher may be employed for shaping. Final screening decks separate output into precise product fractions (e.g., 05mm, 510mm, 1020mm).

Application Scope: Ideal for producing aggregates for road base, readymix concrete, asphalt, and railway ballast from limestone, granite, basalt, and river gravel.
Limitations: Not designed for very abrasive metallic ores or sticky, highclay materials without specific configuration modifications.

3. CORE FEATURES

Integrated ROHS Compliance | Technical Basis: Full BillofMaterials Control | Operational Benefit: Guaranteed market access for your endproducts in EU and other regulated markets | ROI Impact: Eliminates risk of rejection fines and project delays, protecting contract value.

Intelligent Load Management System | Technical Basis: PLCcontrolled variable frequency drives (VFDs) on conveyors and feeders | Operational Benefit: Dynamically matches power draw to actual feed load, preventing crusher choke and emptyrun energy waste | ROI Impact: Field data shows an average 18% reduction in energy consumption versus fixedspeed systems.

Unified Wear Component Design | Technical Basis: Standardized liner profiles and alloy specifications across primary & secondary crushers | Operational Benefit: Reduces spare parts inventory complexity by up to 40% and streamlines maintenance training | ROI Impact: Lowers inventory carrying costs and reduces mean time to repair (MTTR).

MultiStage Dust Suppression Integration | Technical Basis: Strategically placed spray nozzles with solenoid valves tied to conveyor start/stop signals | Operational Benefit: Minimizes airborne particulate at each transfer point without saturating material | ROI Impact: Ensures consistent environmental compliance, avoiding work stoppages and reducing water usage by controlled application.

Modular Structural Platform | Technical Basis: Preengineered bolttogether support structures for major components | Operational Benefit: Reduces site foundation work by approximately 25% and accelerates installation timeline | ROI Impact: Lowers civil engineering costs and enables earlier production startup.

Centralized Greasing & Monitoring Points | Technical Basis: Manifolded lubrication lines routed to accessible service walkways | Operational Benefit: Enables routine maintenance tasks to be completed safely and in less time | ROI Impact: Increases planned maintenance adherence by an estimated 30%, extending bearing and component life.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard Configuration | Rohs Compliant 250300tph Plant Solution | Advantage (% Improvement) |
| : | : | : | : |
| Guaranteed Sustained Throughput| 270280 tph average with fluctuation| Consistent 295305 tph output under rated feed conditions| +810% more saleable product |
| Specific Energy Consumption| ~0.85 kWh/ton processed| ~0.72 kWh/ton processed (via load management)| 15% energy cost per ton |
| Mean Time Between Failure (MTBF)| ~450 hours for critical conveyors| >600 hours for critical conveyors| +33% operational availability |
| Plant Installation & Commissioning Time| 1216 weeks from groundbreaking| 810 weeks from groundbreaking| 30% faster timetorevenue |
| Compliance Documentation Scope| Multiple certificates from component suppliers| Single plantwide ROHS/CE certification dossier| 100% administrative overhead |

5. TECHNICAL SPECIFICATIONS

Designed Capacity Range: 250 – 300 metric tons per hour (tph), based on material density of 1.6 t/m³ (standard limestone).
Primary Crusher: Jaw Crusher Model JCE1303 / Feed Opening:1300x300mm / Max Feed Size: ≤750mm.
Secondary Crusher: MultiCylinder Hydraulic Cone Crusher / Chamber configurable for medium/fine crushing.
Screening Unit: Tripledeck heavyduty vibrating screen / Total Screening Area ≥15m².
Power Requirement: Total installed power ~550 kW / Main voltage supply recommended at400V/50Hz or480V/60Hz.
Key Material Specifications: All electrical wiring/cabling ROHS compliant; Contact surfaces use leadfree solders; Hydraulic fluids are environmentally certified; Major steel structures are S355JR grade.
Typical Plant Footprint (LxW): Approximately65m x45m (including stockpile lanes).
Environmental Operating Range: Designed for ambient temperatures from 20°Cto +45°C; dust emission levels designed tomaintain <20 mg/Nm³ at property boundary withsuppression system active.

6. APPLICATION SCENARIOS

Commercial Aggregate Producer Supplying Regulated Markets

Challenge:A regional producer losta key contract due to inabilityto provide full ROHS compliance documentationfor aggregates suppliedtoa Europeanfunded infrastructure project.
Solution:The implementationof this fully certifiedRohs Compliant300tph crushing plant replaced two older lines.
Results:The producer securedthe longterm contractwitha12% price premiumfor certifiedmaterial.Plantwide certification simplifiedall tendering processesand eliminatedcompliance audits.

Government Road Construction Project

Challenge:A major highway projectfaced strict environmental controlsand noise/dust restrictionsnear residential areas.The contractor needed guaranteed throughputto meet phased deadlineswithout incurring penaltiesfor violations.
Solution:A semimobile versionof the250tph plantwas deployedwith enhanced acoustic enclosuresand the integrated dust suppression system.
Results:The plant operatedwithin all permitted limitsfor its18month duration,documenting zero noncompliance incidents.It maintainedan average outputof260 tph,supportingthe project's completionahead of schedule.

7. COMMERCIAL CONSIDERATIONS

Our solutions are offered in clear pricing tiers based on scope:

Tier I – Base Plant Package ($1.XM $1.YM): Includes primary jaw crusher,vibrating grizzly feeder,tripledeck screen,and secondary cone crusherwith core conveyorsand basic control panel.All components are ROHS compliant.Suitable formost limestoneand granite applications.

Optional Features:
Tertiary VSI Crusher Modulefor shaped aggregates (+$Z)
Automated Metal Detection& Tramp Relief System
Advanced Process Control(APC) Systemwith feed optimization
Extended Weather Enclosures

Service Packages:
Commissioning& Operator Training(Standard)
Annual Performance Audit& Optimization
Comprehensive Parts& Labor Support Agreements(availablein3or5year terms)

Financing Options:
We work with partner financial institutions toofferflexible commercial equipment leasesor installment purchase plans.Typical structures include36to60month termswithballoon payment options,tailoredto matchyourproject cash flow projections.A preliminary credit decisioncan be obtainedwithin48 hours.

8.FAQ

Q:What defines 'ROHS Compliant' fora complete crushing plant?
A:The Restriction of Hazardous Substances(RoHS) directive restricts specific materialsin electrical/electronic equipment.A fully compliant plant ensures every purchased component—from motorsand PLCsto wiring,cables,and control panels—is certified freeof restricted substanceslike leador mercury.This providesa single,documented chainof custodyfor your entire production line's output.

Q:Canyou integrate an existingcrusherof oursinto this newplant design?
A.We can conductan engineering assessment.Often,the limiting factoris ensuringthe existing unit's electrical componentsandsupplied documentationmeetROHS standards.If it does not,the integration would compromisethe fullplant certification.We typically recommendour matchedcomponentset tomaintain guaranteed performanceand compliance integrity.

Q:Whatisthe expected increasein our operational expenditure(OPEX)?
A.The initial investmentis offsetby measurable OPEX reductions.Field reports indicateenergy savings of15%,lower spare partsinventory costs,and reduced downtime.The central lubrication systemalso lowers labor hoursfor routine maintenance.A detailedTotal Costof Ownership(TCO) modelwill be provided during proposal development.

Q:What happens ifa component failsand needs replacement?Does it void the compliance?
A.No.All recommended spare partsare sourcedfrom the same certified supply chain.Any replacement partwe supply will maintainthe plant's overall compliance status.This is acore benefitofa singlesource solution versusamultivendor assembly.

Q:What site preparationis requiredbefore delivery?
A.We provide comprehensive foundation drawingsanda site preparation checklist.Typical requirementsinclude leveled compacted ground,poured concrete foundationsforspecific modules,and provisionofthe main power supply connection pointat the specified rating.Civil works can oftenbe reducedby25% comparedto traditional plantsdue tour modular design philosophy