1. PAINPOINT DRIVEN OPENING

Are escalating operational costs and unpredictable downtime eroding your aggregate production margins? For plant managers and procurement specialists, the core challenges in primary crushing often stem from the crusher itself. These include: inconsistent feed leading to frequent cavity blockages and hours of lost production; premature wear on manganese liners due to improper chamber design, resulting in excessive parts replacement costs; high vibration and mechanical stress causing unscheduled maintenance and component failure; inability to handle varying feed sizes without manual adjustment, reducing overall plant flexibility; and excessive energy consumption per ton of processed material, directly impacting your bottom line.

The critical question is: how do you select a primary jaw crusher that provides mechanical reliability, maximizes uptime, and delivers a lower costperton over its entire lifecycle? The solution requires a machine engineered not just for power, but for intelligent, efficient, and durable operation.

2. PRODUCT OVERVIEW

The GCJ Series HeavyDuty Primary Jaw Crusher is engineered for the first stage of rock reduction in quarrying, mining, and demolition recycling applications. This robust machine transforms large feed material (up to 1200mm) into consistent, coarse aggregate for further processing.

Operational Workflow:
1. Feed Intake: Large dump trucks deposit runofquarry rock into the vibrating grizzly feeder (VGF), which scalps out fines and directs sized material into the crusher cavity.
2. Crushing Action: The elliptical motion of the swing jaw compresses material against the fixed jaw, breaking it through sheer force at the top of the chamber and attrition as it moves down.
3. Discharge & Regulation: Crushed material exits through an adjustable discharge opening. A hydraulic toggle tensioning and adjustment system allows for quick setting changes without manual shims.
4. Material Transport: The sized product is conveyed to the next stage in your crushing circuit.

Application Scope: Ideal for hard rock (granite, basalt), abrasive ores, and reinforced concrete recycling. Best suited for stationary plants or largescale mobile setups requiring high primary tonnage.

Limitations: Not designed for final product shaping or ultrafine crushing. Maximum performance is achieved with proper feed sizing and consistent material flow from upstream operations.

3. CORE FEATURES

Hydraulic Toggle System | Technical Basis: Dualacting hydraulic cylinders replace mechanical toggle plates | Operational Benefit: Enables automatic clearing of tramp metal and uncrushable material without stopping the crusher; allows remote adjustment of CSS | ROI Impact: Reduces downtime from blockages by up to 80% and eliminates manual shim changes, saving significant labor hours.

Optimized Crushing Chamber | Technical Basis: Computermodeled “ST” (SuperToothed) jaw plate profile with steep nip angle | Operational Benefit: Increases grip on slabby material, reduces slippage, and promotes firstpass breakage | ROI Impact: Improves throughput by 1015% on average feed while distributing wear more evenly across jaw plates.

Integrated Motor Base & Belt Drive | Technical Basis: Unified cast steel base with prealigned motor mounts and sheaves | Operational Benefit: Eliminates complex alignment procedures during installation or belt replacement; reduces operational vibration transfer | ROI Impact: Cuts installation time by half and extends Vbelt life by an average of 30%.

HeavyDuty Bearing Housing | Technical Basis: Forged steel housing with labyrinth seals and oversized spherical roller bearings | Operational Benefit: Provides higher radial load capacity to withstand peak shock loads from uncrushables | ROI Impact: Extends bearing service life significantly under harsh conditions, preventing catastrophic bearing failure.

Centralized Greasing Point | Technical Basis: Singlepoint lube distribution lines to swing jaw bearings and toggle mechanism | Operational Benefit: Allows operators to perform complete lubrication in under 10 minutes from a safe location | ROI Impact: Ensures lubrication compliance, directly reducing wearrelated failures by promoting proper maintenance discipline.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard (Competitor A) | GCJ Series Solution | Advantage (% improvement) |
| : | : | : | : |
| Liner ChangeOut Time (Fixed & Swing Jaw) | 2436 manhours | 1620 manhours| ~40% faster |
| Energy Consumption (kWh/tonne) @ CSS 150mm| 0.85 1.05 kWh/t| 0.72 0.88 kWh/t| Up to 15% more efficient |
| Mean Time Between Failure (MTBF) – Bearings| ~6,000 hours| >8,500 hours| ~40% longer lifespan |
| Tramp Iron Release / Clearance Cycle Time| Manual / >60 min.| Hydraulic / <2 min.| ~97% faster |

Based on field service data for similar capacity models.

5. TECHNICAL SPECIFICATIONS

Model: GCJ128
Feed Opening: 1200mm x 800mm (47" x 31")
Maximum Feed Size: 1000mm (39")
Closed Side Setting (CSS) Range: 125 250mm (5" 10")
Capacity Range (@ CSS): 450 750 tonnes per hour
Drive Power Requirement: 160 kW /200 HP electric motor
Total Weight (Crusher Only): Approximately 42,000 kg
Key Material Specifications:
Main Frame: Fabricated heavyduty steel plate with reinforced ribbing.
Swing & Fixed Jaw Dies:Manganese steel (14%,18%,22% available).
Eccentric Shaft: Forged from highintegrity alloy steel.
Operating Temperature Range: 20°C to +45°C (4°F to +113°F)
Dust Suppression: Compatible with standard water spray bar systems.

6. APPLICATION SCENARIOS

Granite Quarry Operation – Southeast Asia

Challenge: A highproduction quarry faced constant liner damage from occasional but devastating tramp steel contamination in blast material, leading to fullday stoppages for clearing.
Solution: Implementation of two GCJ128 crushers equipped with the Hydraulic Toggle System.
Results: Tramp iron events now resolved in under five minutes without entering the crusher cavity. Annual production increased by an estimated 1，200 hours of uptime， translating directly to over 150，000 additional tonnes processed per year.

Urban Demolition Recycling – Northern Europe

Challenge: Processing heavily reinforced concrete with rebar caused frequent jaw seizures， unpredictable wear patterns，and high maintenance costs on existing equipment.
Solution: One GCJ96 model was deployed as the primary breaker，with its optimized chamber design handling slabby concrete more effectively.
Results: The combination of hydraulic release和the ST jaw profile led to a 25% reduction in unscheduled stops。 Wear part life increased by approximately 15%， lowering costpertonne for recycled aggregate significantly。

7．COMMERCIAL CONSIDERATIONS

Our pricing structure is based on a modular配置to match您的specific project scope。

Base Equipment Tier： Includes core GCJ crusher， standard manganese jaws， motor base，and drive sheaves。
Optional Features： Hydraulic toggle system（highly recommended）， automated grease systems， wear monitoring sensors， special alloy liners for specific abrasiveness。
Service Packages：
Bronze：12month parts & labor warranty。
Silver：Extended warranty（36 months）on major components（shaft,bearings,housing）with scheduled inspections。
Gold：Fullservice agreement covering all wear parts，predictive maintenance，and guaranteed emergency response times。
Financing Options： We work with leading industrial finance partners to offer operating leases， equipment loans，and rentaltoown programs tailored to您的cash flow requirements。 Total Cost of Ownership（TCO）models are available upon request。

8．FAQ

Q1： Is this primary jaw crusher compatible with my existing secondary cone crusher和feeding system？
A1： Yes。 Our engineering team will review your current plant layout和conveyor specifications。 The discharge height和capacity curve of the GCJ series are designed to integrate into most standard crushing circuits。

Q2： What is the expected impact on my overall plant energy consumption？
A2： Field data shows that due to its efficient drive design和optimized kinematics,the GCJ can reduce primary crushing energy use by up to 15%。 This contributes measurably to lowering your site's overall power costs。

Q3： How does parts availability work？ What are typical lead times？
A3： We maintain regional inventory hubs for all critical wear和mechanical parts。 Standard manganese jaws are typically shipped within 48 hours。 For major components,a guaranteed leadtime program is part of our premium service packages。

Q4： Can you provide verified performance data based on my specific rock type？
A4 ： Absolutely。 We have an extensive database of site reports across various materials（trap rock,granite,basalt）。 We can provide labmatched capacity estimates和expected wear rates based on your provided sample analysis。

Q5 ： What training is provided for our operations和维护 staff？
A5 ： Every purchase includes comprehensive onsite training covering safe operation,daily inspections,routine maintenance procedures,and basic troubleshooting。 This documentation is also provided digitally。

Q6 ： Are there any hidden costs in installation？
A6 ： Our proposal includes a detailed foundation drawing和load specification。 All interface points（feed hopper/discharge conveyor）are clearly defined。 The integrated motor base eliminates alignment costs。 Any required civil work remains your responsibility as per standard industry practice。

Q7 ： What defines "endoflife"for this machine,and what are my options then？
A7 ： The fabricated main frame has a multidecade lifespan。 Endoflife typically refers when rebuild costs exceed value after extensive service。 We offer certified rebuild services at our facility or tradein programs toward newer technology at that stage