1. PAINPOINT DRIVEN OPENING

Are you facing persistent bottlenecks in your gold ore processing circuit? Inconsistent feed size, abrasive ore composition, and the relentless demand for throughput create significant operational hurdles. Consider the tangible costs: unplanned downtime for liner changes and repairs, excessive energy consumption from inefficient crushing, and precious metal losses due to inadequate liberation. These factors directly erode profit margins and complicate plant management.

Is premature wear on crushing components causing maintenance cycles to disrupt your production schedule?
Are you achieving optimal mineral liberation to maximize recovery in your leaching or gravity circuits?
How much potential revenue is lost due to crusher incapacity during peak feed periods?

The right primary crushing equipment is not merely a purchase; it's a strategic investment in circuit stability and metallurgical efficiency.

2. PRODUCT OVERVIEW

This product line encompasses robust, highcapacity ODM Gold Ore Jaw Crushers engineered for primary crushing applications. Designed as the first critical stage in comminution, these machines reduce runofmine (ROM) gold ore to a consistent, manageable size for downstream processing.

Operational Workflow:
1. ROM gold ore is fed into the vibrating grizzly feeder, which bypasses subsize material and directs oversize to the crusher.
2. Ore enters the deep crushing chamber of the jaw crusher, where a powerful elliptical motion applies compressive force.
3. The material is crushed between a fixed and a moving manganese steel jaw plate.
4. Crushed product discharges at the bottom, with size determined by the closedside setting (CSS).
5. The product conveyor transports sized material to the next stage, typically secondary crushing or milling.

Application Scope: Ideal for hard rock gold ores (e.g., quartz veins, sulphidebearing ores) in stationary plant setups or modular processing plants.
Limitations: Not designed for wet, sticky ores without prior screening/scalping. Primary crushing alone does not achieve fine liberation; it prepares feed for subsequent grinding stages.

3. CORE FEATURES

HeavyDuty Frame & Reinforced Housing | Technical Basis: Finite Element Analysis (FEA) optimized design | Operational Benefit: Eliminates stress cracking under high cyclic loads, ensures longterm structural integrity | ROI Impact: Reduces risk of catastrophic frame failure, extending operational life beyond 15 years with proper maintenance

Optimized Crushing Chamber Geometry | Technical Basis: Deep symmetrical chamber design with steep nip angle | Operational Benefit: Increases capacity by up to 10% versus conventional designs, promotes particleonparticle crushing to reduce liner wear | ROI Impact: Higher throughput per energy unit consumed and extended wear part intervals lower costperton

HighInertia Flywheels & Robust Eccentric Shaft | Technical Basis: Precisely calculated rotational inertia and forged alloy steel shaft | Operational Benefit: Maintains consistent crushing momentum under variable feed conditions, minimizes power fluctuations | ROI Impact: Protects drive motor from peak loads, reduces energy costs and improves overall power factor

QuickChange Wedge System for Jaw Plates | Technical Basis: Mechanically locked wedge assembly without epoxy backing | Operational Benefit: Allows liner changeout in hours instead of shifts, drastically reducing downtime | ROI Impact: Maximizes plant availability; field data shows an average of 30% faster maintenance turnaround

Centralized Greasing Point & Labyrinth Seals | Technical Basis: Automated lubrication routing to all key bearings; multistage sealing barriers | Operational Benefit: Ensures reliable bearing lubrication, excludes dust and contaminants from bearing housings | ROI Impact: Prevents bearing seizure failures—a leading cause of unplanned stoppages—cutting associated repair costs by an estimated 65%

Modular Component Design | Technical Basis: Standardized subassemblies (e.g., pitman assembly, toggle seats) | Operational Benefit: Simplifies onsite repairs and reduces required spare parts inventory complexity | ROI Impact: Lowers longterm ownership costs and facilitates faster service intervention

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard Benchmark | ODM Gold Ore Jaw Crusher Solution | Advantage (% Improvement) |
| : | : | : | : |
| Liner Life (Abrasive Ore)| 120,000 150,000 tons per set| 180,000 220,000 tons per set| +40% (Extended campaign life) |
| Tons per Hour per Installed kW| 2.8 3.2 tph/kW| 3.5 3.9 tph/kW| +18% (Higher Energy Efficiency) |
| Mean Time Between Failure (MTBF)| ~1,200 operating hours| >1,800 operating hours| +50% (Improved Reliability) |
| ClosedSide Setting Adjustment Range| Typically +/ 25mm via shims| Up to +/ 50mm via hydraulic or mechanical shim system| +100% (Greater Circuit Flexibility) |
| Noise Level at 1 Meter| ~110 dBA| 5% Reduction (Improved Worksite Compliance) |

5. TECHNICAL SPECIFICATIONS

Model Range Capacity: 150 1,800 tonnes per hour
Feed Opening Sizes: From \(900mm x600mm\) up to \(1500mm x1200mm\)
Power Requirements: Motor ratings from \(75kW\) up to \(250kW\), compatible with VFD drives for soft start
Material Specifications: Highstrength fabricated steel frame (\( \geq \) Q345B); Austenitic Manganese Steel jaw plates (\(1214\% Mn\), workhardening); Forged EN series alloy steel eccentric shaft
Physical Dimensions: Varies by model; approximate footprint range of \(4m L x3m W x3m H\) to \(7m L x5m W x5m H\)
Environmental Operating Range: Designed for ambient temperatures from \(20^\circ C\) to \(+45^\circ C\); dustproofed electrical components standard.

6. APPLICATION SCENARIOS

Hard Rock Vein Mining – West Africa Challenge:

A midtier operator faced frequent jaw plate fractures due to highly abrasive quartzite ore containing coarse gold nuggets (<100mm), causing biweekly stoppages.

Solution:

Implementation of a Model JC1200 ODM Gold Ore Jaw Crusher with extrathick manganese jaws and a modified chamber profile for higher compression.

Results:

Jaw plate service life increased from two weeks to seven weeks. Combined with the quickchange wedge system,downtime for liner replacement was reduced by over60%. This stabilized feed to the secondary cone crusher,increasing overall plant availability by an estimated12%.

HighAltitude Sulfide Ore Processing – Andes Region Challenge:

An expansion project required a primary crusher capable of handling highvolume,tough sulfide ore at4，200 meters elevation，where equipment deration due to lower air density is a critical factor.

Solution:

Installation of two parallel JC900 ODM Gold Ore Jaw Crushers with specially sized highinertia flywheelsand motors rated for highaltitude operation.

Results:

The design compensated for power loss at altitude，achievingthe designed throughput of950 tph combined.Crucially,the robust bearing lubrication system performed flawlessly in cold，dry conditions，with zero lubricationrelated issues in the first18 months of operation.

7.COMMERCIAL CONSIDERATIONS

Our ODM Gold Ore Jaw Crushers are offered across three valueengineered tiers:

1.Standard Tier: Base model crusher core，including drive motorand basic guarding.Idealfor operationswith existing maintenance teamsand spare parts inventories.
2.Performance Tier: Includes integrated motor base，hydraulic setting adjustment，automatic greasing system,and awear monitoring package.Recommendedfor balancing capital outlaywith operational efficiency gains.
3.PlantReady Tier: Full skidmounted package including vibrating grizzly feeder，product conveyor，walkways，dust suppression,and central PLC control panel.Minimizes onsite installation timeand cost.

Optional features include special alloy jaw platesfor extreme abrasion，ceramiclined feed hoppersfor sticky ore mitigation,and remote monitoring telematics packages.

We offer comprehensive service agreements covering scheduled inspections,wears part supplyat preferential rates,and priority technical support.Financing options include straight capital purchase，leasetoown arrangements,and tailored rental planswith purchase optionsfor projectbased work.

8.FAQ

Q:What isthe maximum recommended feed sizefor these crushers?
A:The maximum feed size should not exceed8085%of the crusher'sfeed opening width.For example,a1200x800mmcrusher can accept lumpsofup to~680mmindiameter.Optimal performanceis achievedwith wellblastedmaterialto minimize bridging.

Q:Canyour jaw crushers handleorewitha high clay content?
A：While capableofcrushing hard material withinclay,the presenceofsignificant sticky claycan causechamber packingand reduced capacity.We recommendprescreeningor scalpingwhere clay content exceeds10%.For severe cases,a grizzlyfeederor apron feederis essential.

Q:Whatisthe typical delivery lead time?
A：Lead times varyby modelcomplexityand customization.For standard tier modelsin our most popular sizes,inventoryallowsforshipmentwithin810weeks.Plantready skid packages typically require1416weeksfor fabricationand testing.Detailed schedulesare provided upon inquiry.

Q:Doyou provide foundation drawingsand installation supervision?
A：Yes.Comprehensive general arrangement drawings，foundation load data,and interface dimensionsare suppliedas part ofthe technical documentation.Onsite installation supervisionby our field engineersis availableas an optional service package。

Q：Howdoesthe quickchange wedge systemwork comparedto traditional methods？
A：Traditional systems often require backing material removal（epoxy）and dangerous hammering.The wedgesystemuses mechanically locked wedgesdrivenin/outwith hydraulic jacks（optional）or hand tools.This securesjaw platesdirectly againstthe crusher body,safely reducingchangeout timeby approximatelytwothirds。

Q:Arethere financing optionsavailablefor international buyers？
A：Yes.We workwith several international trade finance institutionsto providelettersofcredit（LC），mediumterm financing,and leasing solutions.Termsare dependenton buyer credit profileand project specifics。