Introduction

River pebble is one of the most challenging materials in aggregate production due to its high hardness, strong abrasiveness, and rounded shape. Compared with softer stones, river pebble requires a carefully designed crushing process to achieve stable production, reduce equipment wear, and produce high-quality aggregates for construction applications.

In Peru, especially around Lima, river pebble resources are widely used for concrete production, road construction, and infrastructure development. However, quarry operators often face challenges such as changing extraction locations, difficult transportation conditions, high equipment wear, and strict requirements for aggregate shape.

To solve these challenges, UNIQUEMAC designed and delivered a 200TPH mobile river pebble crushing plant for a customer in Lima, Peru. The customized solution combines a two-chassis mobile design, GZT1148 vibrating feeder, C106 European jaw crusher, Symons cone crusher, and 4YK2160 vibrating screen, providing an efficient and flexible crushing solution for hard river pebble processing.

The complete mobile crushing system has been successfully installed and commissioned, and it is now operating at full capacity to produce high-quality aggregates for local construction projects.

Project Background: Mobile Crushing Solution for River Pebble Processing in Peru

Customer Project Overview

The project is located in Lima, Peru, where abundant river pebble resources provide excellent raw materials for aggregate production. River pebble is widely applied in:

• Concrete manufacturing
• Road base construction
• Asphalt production
• Commercial building materials

However, processing river pebble is not an easy task.

Because river pebble has a dense structure and high compressive strength, conventional crushing equipment may experience:

• Faster wear of wear parts
• Higher maintenance frequency
• Reduced production efficiency
• Poor aggregate shape quality

Therefore, the customer required a crushing plant that could provide:

1. Stable 200TPH Production Capacity

The quarry needed continuous aggregate production to meet local construction demand.

2. Flexible Relocation Capability

Since river pebble extraction areas may change over time, the crushing equipment needed to be moved quickly without rebuilding a complete fixed crushing station.

3. Better Protection Against Wear

The equipment needed to handle highly abrasive river pebble while reducing unnecessary impact on crushers.

4. High-Quality Final Aggregates

The finished products needed to meet construction standards with excellent particle shape and accurate size classification.

Based on these requirements, UNIQUEMAC engineers developed a customized two-stage mobile crushing and screening solution.

Customized Mobile Crushing Plant Configuration

To meet the customer’s production requirements, UNIQUEMAC designed a two-chassis mobile crushing plant.

The complete system includes:

The first chassis integrates feeding and primary crushing, while the second chassis combines secondary crushing and screening. This design provides excellent flexibility for quarry operations and allows the equipment to be relocated according to mining conditions.

Why UNIQUEMAC Selected a Two-Chassis Mobile Crushing Design

Compared with traditional stationary crushing plants, the two-chassis mobile crushing plant provides several advantages.

Flexible Transportation and Relocation

A major challenge of river pebble quarrying is that extraction locations may gradually move.

A fixed crushing plant usually requires:

• Concrete foundation construction
• Long installation periods
• Additional relocation costs

The two-chassis mobile crushing plant solves this problem.

Each chassis can be transported independently, making relocation faster and reducing downtime during site changes.

Reduced Foundation Requirements

Unlike fixed crushing stations, this mobile crushing solution does not require complex concrete foundations.

After arriving at the working site, the plant can be quickly positioned and put into operation, helping customers shorten project preparation time.

Adaptability to Different Quarry Conditions

The two independent mobile units allow operators to arrange equipment according to:

• Site space
• Material transportation direction
• Production workflow
• Future expansion requirements

This flexibility makes the plant especially suitable for river pebble crushing projects.

GZT1148 Vibrating Feeder with Grizzly Bar: Improving Feeding Efficiency and Reducing Crusher Wear

In a river pebble crushing operation, the feeding process directly affects the stability and efficiency of the entire production line.

Unlike ordinary stones, river pebble often contains:

• Sand particles
• Clay
• Fine materials
• Moisture

If these materials enter the primary crusher together with large stones, they can easily cause:

• Increased crusher load
• Material blockage
• Faster wear of crushing components
• Lower crushing efficiency

To solve this problem, UNIQUEMAC equipped the mobile crushing plant with a GZT1148 vibrating feeder with grizzly bar pre-screening function.

The vibrating feeder is installed at the front of the production line and performs two important tasks:

1. Continuous feeding of raw river pebble
2. Pre-screening of fine materials before crushing

The grizzly bar design separates smaller particles and sticky materials before they enter the jaw crusher, allowing the crusher to focus on processing larger stones that actually require crushing.

Advantages of Grizzly Pre-Screening for River Pebble Applications

1. Reducing Primary Crusher Load

By removing fine materials before crushing, the jaw crusher receives a more suitable feed size.

This helps:

• Improve crushing efficiency
• Reduce unnecessary energy consumption
• Extend crusher service life

For abrasive river pebble applications, reducing unnecessary crushing pressure is an effective way to control operating costs.

2. Preventing Material Blockage

River pebble is often processed in outdoor quarry environments where raw materials may contain moisture.

Wet materials mixed with clay can easily stick together and affect feeding performance.

The GZT1148 grizzly feeder helps separate these materials and improves feeding stability even under challenging conditions.

3. Improving Final Aggregate Quality

Removing excessive fines before crushing prevents unnecessary over-crushing.

As a result:

• Crusher capacity is better utilized
• Final aggregate gradation becomes more stable
• Product quality improves

For customers producing commercial aggregates, stable particle size distribution is essential.

C106 European Jaw Crusher: Reliable Primary Crushing for Large River Pebbles

After pre-screening, oversized river pebbles enter the primary crushing stage.

For this project, UNIQUEMAC selected a C106 European jaw crusher as the primary crushing equipment.

The jaw crusher is designed to handle large feed materials and provides strong crushing performance for hard rock applications.

According to the project configuration, the crusher can process river pebbles with a maximum feed size of approximately 600mm.

Why Choose a European Jaw Crusher for River Pebble Crushing?

Deep Crushing Chamber Design

River pebble has high compressive strength and requires sufficient crushing force.

The deep crushing chamber design provides:

• Better material penetration
• Higher crushing efficiency
• More stable operation under heavy loads

Strong Wear Resistance

Because river pebble is highly abrasive, crusher wear parts are one of the biggest concerns for quarry operators.

The C106 jaw crusher features a heavy-duty structure designed for demanding crushing environments, helping improve equipment durability and reduce maintenance frequency.

Stable Performance for Continuous Production

For commercial aggregate production, unexpected downtime can directly affect project profitability.

The C106 jaw crusher provides:

• Reliable crushing performance
• High structural strength
• Long service intervals

making it suitable for continuous operation in quarry environments.

PSGB-1324 Symons Cone Crusher: Producing High-Quality Cubic Aggregates

After primary crushing, the material enters the secondary crushing stage.

UNIQUEMAC selected a PSGB-1324 Symons cone crusher (3ft) for secondary crushing.

The main purpose of this stage is not only to reduce particle size but also to improve aggregate shape.

For construction applications, especially concrete and asphalt production, cubic-shaped aggregates are preferred because they provide better strength and performance.

Advantages of Symons Cone Crusher in River Pebble Processing

1. Excellent Crushing Performance for Hard Materials

River pebble is harder than many common aggregates.

Impact crushers may experience faster wear when processing highly abrasive materials.

The Symons cone crusher uses compression crushing technology, making it more suitable for hard and abrasive stones.

The combination of jaw crusher and cone crusher provides an efficient crushing solution for high-hardness river pebble.

2. Better Cubic Aggregate Shape

One of the biggest advantages of cone crushing is the production of well-shaped aggregates.

The laminated crushing principle helps achieve:

• More cubic particles
• Less flaky material
• More uniform product size

This is especially important for:

• Concrete aggregate
• Road construction materials
• Asphalt production

3. Lower Maintenance Requirements

The Symons cone crusher has been widely used worldwide because of its:

• Mature design
• Reliable structure
• Easy maintenance
• Availability of spare parts

For overseas quarry operators, equipment reliability and spare part availability are critical factors when selecting crushing equipment.

4YK2160 Vibrating Screen: Accurate Aggregate Classification

After secondary crushing, crushed materials enter the screening stage.

UNIQUEMAC equipped the plant with a 4YK2160 four-deck vibrating screen.

The purpose of screening is to separate aggregates into different sizes according to customer requirements.

The screen can classify finished products into multiple specifications, including:

• 0-5mm
• 5-10mm
• 10-20mm
• 20-31.5mm

Why Screening Quality Matters in Aggregate Production

A high-performance crushing system is not only about crushing capacity.

The final product quality depends heavily on accurate screening.

The 4YK2160 vibrating screen provides:

Multiple Product Sizes

Different construction projects require different aggregate specifications.

Multiple screening decks allow customers to produce various products from one crushing line.

Stable Production Quality

Accurate classification helps maintain:

• Consistent particle size
• Better market acceptance
• Reduced material waste

Complete Process Flow of the 200TPH Mobile Crushing Plant

The complete production process is:

Step 1: Feeding and Pre-Screening

Raw river pebble enters through the GZT1148 vibrating feeder.

Fine materials and unwanted particles are separated before crushing.

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Step 2: Primary Crushing

Large river pebbles are reduced by the C106 jaw crusher.

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Step 3: Secondary Crushing

The Symons cone crusher further reduces the material and improves particle shape.

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Step 4: Screening and Classification

The 4YK2160 vibrating screen separates aggregates into different sizes for commercial use.

This complete process provides a balanced solution between:

• Production capacity
• Equipment durability
• Aggregate quality
• Operating flexibility

Why This Configuration Is Suitable for Peru River Pebble Quarries

The UNIQUEMAC mobile crushing plant was not simply a combination of machines.

It was designed based on the customer’s actual working conditions:

This customized approach helps quarry operators achieve reliable production while controlling long-term operating costs.

Key Advantages of UNIQUEMAC 200TPH Mobile River Pebble Crushing Plant

A successful crushing project is not only determined by equipment capacity. For quarry operators, the most important factors are long-term production stability, operating cost control, maintenance convenience, and adaptability to changing working conditions.

Based on the actual requirements of the Lima, Peru project, UNIQUEMAC developed a mobile crushing solution that combines mobility, efficiency, durability, and high-quality aggregate production.

1. Exceptional Mobility for Changing Quarry Conditions

One of the biggest challenges in river pebble mining is that extraction areas are constantly changing.

Unlike fixed crushing plants that require:

• Large concrete foundations
• Long installation periods
• High relocation costs

the UNIQUEMAC two-chassis mobile crushing plant provides much greater operational flexibility.

The two independent mobile units can be transported and repositioned according to quarry development conditions, allowing operators to follow the raw material source without rebuilding the complete production system.

Benefits for Quarry Operators:

• Faster project deployment
• Reduced relocation costs
• Lower civil construction requirements
• Better utilization of equipment investment

For river pebble applications, where material extraction locations may move over time, mobility directly improves project profitability.

2. Improved Crushing Efficiency Through Intelligent Pre-Screening

River pebble processing is often affected by fine particles and moisture.

Without proper pre-screening, excessive fines entering the crusher may result in:

• Increased wear
• Reduced crushing capacity
• Higher energy consumption
• Material blockage

The GZT1148 vibrating feeder with grizzly bar effectively removes unwanted fines before crushing.

This design helps:

• Protect jaw crusher components
• Improve production efficiency
• Reduce unnecessary crushing workload
• Maintain stable aggregate quality

3. Optimized Crushing Combination for Hard River Pebble

Choosing the correct crusher combination is critical when processing abrasive materials.

For this project, UNIQUEMAC adopted:

Jaw Crusher + Symons Cone Crusher

instead of an impact crushing solution.

This configuration provides advantages in hard stone processing:

Primary Crushing:

C106 European jaw crusher

→ Handles large river pebbles
→ Provides strong crushing force
→ Ensures stable feeding for the next stage

Secondary Crushing:

PSGB-1324 Symons cone crusher

→ Improves aggregate shape
→ Produces more cubic particles
→ Provides reliable performance under continuous operation

This crushing combination is especially suitable for:

• River pebble
• Granite
• Basalt
• Other high-hardness aggregates

4. Production of High-Quality Aggregates

For construction projects, production capacity alone is not enough.

Customers also require:

• Accurate particle sizes
• Good aggregate shape
• Stable quality

The combination of Symons cone crushing technology and four-deck screening allows the plant to produce multiple aggregate specifications for different applications.

The final products can be used in:

• Ready-mix concrete
• Road construction
• Infrastructure projects
• Commercial aggregate supply

5. Fast Installation and Simple Operation

Traditional stationary crushing plants often require long preparation periods before production begins.

A mobile crushing plant provides a faster alternative.

The UNIQUEMAC mobile solution reduces:

• Foundation construction work
• Installation time
• Site preparation costs

After transportation to the working site, the equipment can be quickly arranged and commissioned.

The centralized control system also simplifies operation and monitoring, reducing operator workload.

6. Lower Operating Cost per Ton

For aggregate producers, profitability depends heavily on production cost.

The UNIQUEMAC mobile crushing plant helps reduce operating expenses through:

Reduced Material Handling

Mobile equipment can be positioned closer to extraction areas, reducing unnecessary transportation distance.

Lower Wear Cost

The pre-screening system reduces unnecessary crushing of fine materials.

Efficient Crushing Process

The jaw crusher and cone crusher combination provides a balanced crushing ratio and stable output.

Reduced Infrastructure Investment

No complicated fixed foundation construction is required.

7. Designed for Peru Mining and Construction Conditions

Every market has different operating requirements.

For Peru, especially regions around Lima, crushing equipment must handle:

• Coastal humidity
• Dusty quarry environments
• Long operating hours
• Difficult transportation conditions

UNIQUEMAC provides customized crushing solutions according to local conditions, including equipment selection, layout design, installation support, and spare parts service.

Customer Benefits After Installation

After commissioning, the Lima customer achieved a complete aggregate production solution with:

Stable Production Capacity

The plant continuously supplies aggregates for local construction applications.

Flexible Operation

The mobile design allows future relocation according to quarry development.

Better Aggregate Quality

The cone crusher and screening system improve final product shape and size accuracy.

Reduced Maintenance Pressure

Pre-screening and suitable crusher selection help extend equipment service life.

Why Choose UNIQUEMAC for Your Crushing Plant Project?

Choosing a crushing equipment supplier is a long-term decision.

A reliable manufacturer should provide more than machines.

UNIQUEMAC focuses on:

1. Customized Engineering Solutions

Every quarry has different:

• Raw materials
• Capacity requirements
• Final product specifications
• Site conditions

UNIQUEMAC engineers design crushing plants based on actual project requirements rather than offering standard equipment combinations.

2. Complete Crushing Equipment Supply

UNIQUEMAC provides complete solutions including:

• Mobile crushing plants
• Stationary crushing plants
• Jaw crushers
• Cone crushers
• Vibrating feeders
• Vibrating screens
• Belt conveyors

This allows customers to obtain a complete production system from one experienced supplier.

3. International Project Experience

The Peru project represents UNIQUEMAC’s capability in overseas crushing plant delivery.

The company has supplied crushing solutions for customers in different regions, helping contractors and quarry operators improve aggregate production efficiency.

4. Professional After-Sales Support

For overseas customers, service capability is as important as equipment quality.

UNIQUEMAC provides:

• Installation guidance
• Commissioning support
• Operator training
• Spare parts supply
• Technical assistance

Frequently Asked Questions (FAQ)

Q1: What materials can this 200TPH mobile crushing plant process?

This mobile crushing plant is mainly designed for hard and abrasive materials such as river pebble, river stone, granite, and basalt.

The combination of jaw crusher and Symons cone crusher provides reliable performance for high-hardness materials.

Q2: Why choose a mobile crushing plant instead of a stationary crushing plant?

A mobile crushing plant provides greater flexibility.

It can be relocated according to quarry development, reduces foundation requirements, and helps customers start production faster.

For projects where raw material locations change frequently, mobile equipment is often a more practical solution.

Q3: What is the capacity of this river pebble crushing plant?

This project was designed for approximately 200TPH aggregate production capacity.

The actual output may vary depending on:

• Raw material characteristics
• Feeding size
• Final product requirements
• Operating conditions

Q4: Why does this plant use both jaw crusher and cone crusher?

River pebble has high hardness and strong abrasiveness.

The jaw crusher provides powerful primary crushing, while the Symons cone crusher improves crushing efficiency and aggregate shape.

This combination offers better performance for hard stone processing compared with single-stage crushing solutions.

Q5: Can UNIQUEMAC customize a crushing plant according to my project?

Yes.

UNIQUEMAC can customize crushing solutions according to:

• Material type
• Required capacity
• Feeding size
• Final aggregate sizes
• Working environment

Customers can provide basic project information, and UNIQUEMAC engineers will recommend a suitable crushing plant configuration.

Start Your River Pebble Crushing Project with UNIQUEMAC

Looking for a reliable mobile crushing plant manufacturer for your quarry or construction project?

Whether you need:

• 200TPH mobile crushing plant
• River pebble crusher solution
• Mobile jaw crusher and cone crusher system
• Complete aggregate production line

UNIQUEMAC can provide a customized solution based on your production requirements.

Send us your:

• Raw material information
• Required capacity
• Final product sizes
• Project location

Our engineers will provide a professional crushing plant proposal and competitive quotation.