250 TPH Limestone Crushing Plant for a Railway Project in Mexico

As railway and infrastructure construction continues to expand in Mexico, reliable sources of high-quality aggregates are increasingly important. For large-scale railway projects, the crushing plant must do more than simply process rock. It needs to provide stable production, consistent particle sizes, good aggregate shape, and reliable long-term operation.

To meet these requirements, UNIQUEMAC designed and delivered a 250 TPH fixed limestone crushing plant for a railway infrastructure project in Mexico.

The plant uses a two-stage crushing and screening process consisting of a GZT1148 vibrating feeder, PE750×1060 jaw crusher, PFW1315 impact crusher, and 3YK2160 vibrating screen. The final products are classified into several sizes, including 0–5 mm, 5–10 mm, 10–20 mm, 20–31.5 mm, and 31.5–40 mm, providing aggregates for railway construction, concrete production, road bases, and other infrastructure applications.

The project demonstrates how a properly selected limestone crushing plant can combine stable capacity, controlled particle size, and suitable aggregate shape for demanding infrastructure applications.

Project Overview

The customer required a stable aggregate production solution capable of processing limestone for a major railway infrastructure project in Mexico.

Based on the material characteristics and required product sizes, UNIQUEMAC developed a fixed crushing and screening solution with a designed capacity of 250 tons per hour.

Key Project Parameters

The equipment configuration was selected according to the limestone processing requirements and the project’s aggregate specifications.

Why Limestone Is Suitable for Aggregate Production

Limestone is widely used as a construction aggregate because of its relatively moderate hardness and good crushability. These characteristics make it suitable for a variety of crushing processes and allow manufacturers to produce different aggregate sizes efficiently.

For railway and infrastructure projects, however, simply achieving a required output capacity is not enough. The crushing process also needs to provide appropriate particle sizes and aggregate shape.

This is why the selection of the secondary crusher is particularly important.

For this project, UNIQUEMAC selected an impact crusher for secondary crushing after the primary jaw crushing stage. The combination allows the plant to reduce large limestone feed material while producing more cubical aggregate particles suitable for construction applications.

250 TPH Limestone Crushing Plant Configuration

The complete plant consists of four major equipment groups:

Feeding → Primary Crushing → Secondary Crushing → Screening

Each stage performs a specific function and works together to maintain a stable production process.

Main Equipment

• GZT1148 Vibrating Feeder
• PE750×1060 Jaw Crusher
• PFW1315 Impact Crusher
• 3YK2160 Vibrating Screen

This configuration provides a straightforward two-stage crushing process for limestone aggregate production.

GZT1148 Vibrating Feeder: Stable and Continuous Feeding

The GZT1148 vibrating feeder is installed at the front of the crushing plant.

Its main function is to continuously and evenly feed limestone into the primary crusher. Stable feeding is important because irregular feed rates can cause fluctuations in crusher performance and reduce the efficiency of the entire production line.

The feeder is also equipped with a bar grate structure for preliminary separation of fine materials. By removing some fines before the material enters the primary crusher, the feeding system can help reduce unnecessary crushing load and improve the overall efficiency of the plant.

For a 250 TPH crushing plant, maintaining a stable feed rate is essential for keeping the downstream jaw crusher and impact crusher operating efficiently.

PE750×1060 Jaw Crusher for Primary Crushing

After feeding, the limestone enters the PE750×1060 jaw crusher, which performs the primary crushing stage.

According to the project information, the limestone feed can reach approximately 630 mm. The jaw crusher is therefore responsible for reducing large limestone blocks into smaller, manageable particles for the secondary crushing stage.

The jaw crusher is well suited to primary crushing because of its robust structure and large crushing cavity.

The main functions of this stage are to:

• Reduce large limestone blocks
• Provide relatively uniform primary crushed material
• Prepare the material for secondary crushing
• Maintain stable throughput for the following equipment

The heavy-duty frame and quality bearings are designed to support continuous operation under demanding working conditions.

An effective primary crushing stage is particularly important in a fixed crushing plant because the performance of the jaw crusher directly affects the loading conditions of the secondary crusher and screening system.

PFW1315 Impact Crusher for Secondary Crushing

The PFW1315 impact crusher is used for secondary crushing.

This equipment is particularly suitable for limestone processing because the impact crushing process can help produce aggregates with a more cubical shape.

Aggregate shape can be an important consideration in railway and concrete applications. Excessive flat or elongated particles may not be desirable for certain construction applications, so controlling particle shape is an important part of the crushing process.

The PFW1315 impact crusher in this project provides several functions:

• Secondary reduction of limestone
• Improved aggregate shape
• More uniform particle size
• Adjustable discharge size
• Efficient processing of medium-hard limestone

The project configuration uses high-chrome blow bars and an optimized crushing chamber. The hydraulic adjustment system also allows the discharge opening to be adjusted according to the required product specifications.

This makes the impact crusher an important part of the overall 250 TPH limestone crushing plant.

3YK2160 Vibrating Screen for Accurate Classification

After secondary crushing, the crushed limestone is transferred to the 3YK2160 vibrating screen.

The three-deck vibrating screen separates the crushed material into different size ranges.

For this project, the target product sizes include:

• 0–5 mm
• 5–10 mm
• 10–20 mm
• 20–31.5 mm
• 31.5–40 mm

Accurate screening is essential because the final aggregate products need to meet the project’s size requirements.

The screening stage also allows different aggregate sizes to be collected separately and directed toward their respective applications.

For large infrastructure projects, multiple product sizes can provide greater flexibility because different construction operations may require different aggregate specifications.

How the 250 TPH Limestone Crushing Plant Works

The overall process can be summarized as follows:

Step 1: Limestone Feeding

Raw limestone is loaded into the GZT1148 vibrating feeder. The feeder provides a controlled and continuous flow of material to the jaw crusher.

Step 2: Primary Crushing

Large limestone blocks enter the PE750×1060 jaw crusher. The crusher reduces the feed material to a size suitable for secondary processing.

Step 3: Secondary Crushing

The primary crushed limestone enters the PFW1315 impact crusher. At this stage, the material is further reduced and its particle shape is improved.

Step 4: Screening

The crushed material is sent to the 3YK2160 vibrating screen. The three-deck screen separates the material into different aggregate sizes.

Step 5: Final Aggregate Production

The classified materials are separated into 0–5 mm, 5–10 mm, 10–20 mm, 20–31.5 mm, and 31.5–40 mm products according to the project configuration.

These aggregates can then be used for railway construction, concrete production, road bases, and other infrastructure applications.

Why Use a Jaw Crusher + Impact Crusher for Limestone?

One of the important design considerations for a limestone crushing plant is selecting the appropriate combination of crushers.

Limestone has different characteristics from very hard rocks such as granite or basalt. Its relatively moderate hardness and good crushability make an impact crushing process suitable for many limestone applications.

For this project, the jaw crusher + impact crusher configuration provides a practical two-stage solution.

The jaw crusher handles the large feed material during primary crushing, while the impact crusher performs secondary reduction and helps improve aggregate shape.

Compared with a configuration based entirely on compression crushing, this arrangement can provide advantages for limestone aggregate production where particle shape and efficient crushing are important considerations.

However, the optimal crusher configuration should always be determined according to the actual material characteristics, feed size, required capacity, final product sizes, and application.

Key Advantages of This 250 TPH Limestone Crushing Plant

Stable 250 TPH Production

The equipment combination was designed to provide a nominal production capacity of 250 TPH.

The coordinated operation of the feeder, primary crusher, secondary crusher, and vibrating screen helps maintain a stable material flow throughout the production process.

For railway infrastructure projects, stable production is especially important because aggregate demand can remain high throughout different construction stages.

Suitable for Limestone Processing

The plant configuration is specifically designed around the characteristics of limestone.

The jaw crusher provides reliable primary reduction, while the impact crusher performs efficient secondary crushing and produces suitable aggregate shapes.

This makes the configuration appropriate for limestone aggregate production where both capacity and product quality are important.

Multiple Aggregate Sizes

The 3YK2160 three-deck vibrating screen allows the plant to classify the crushed limestone into several product sizes.

The project configuration produces:

0–5 mm / 5–10 mm / 10–20 mm / 20–31.5 mm / 31.5–40 mm

Producing several sizes from a single crushing line increases the flexibility of the aggregate production process.

Suitable Aggregate Shape for Infrastructure

The impact crushing stage helps produce more cubical aggregate particles.

This characteristic is valuable for applications where aggregate shape is an important consideration, including railway-related construction and concrete aggregate production.

The final suitability of the aggregate, however, should always be verified against the technical specifications and standards of the specific project.

Designed for Long-Term Operation

Fixed crushing plants are commonly selected for large projects where the production site is expected to operate for an extended period.

Compared with highly mobile solutions, a fixed plant provides a stable installation layout and is well suited to permanent or long-term aggregate production sites.

For infrastructure projects such as railway construction, long-term reliability and predictable production are important factors when selecting crushing equipment.

Applications of the Final Limestone Aggregates

The finished products from this project are intended for infrastructure-related applications.

Railway Construction

Properly sized aggregates can be used in railway-related construction applications, subject to the project specifications and applicable standards.

Concrete Production

Different limestone aggregate sizes can be used as raw materials for concrete production.

Road Construction

Crushed limestone is also widely used for road bases and other road construction applications.

General Infrastructure

The flexibility of producing multiple aggregate sizes allows the plant to serve different construction requirements.

Project Results

The completed plant provides a 250 TPH fixed crushing and screening solution for the limestone aggregate requirements of the railway infrastructure project in Mexico.

The project combines:

• Stable feeding
• Primary jaw crushing
• Secondary impact crushing
• Multi-size screening
• Customized aggregate production

The equipment configuration was selected according to the project’s material and product requirements, demonstrating UNIQUEMAC’s ability to develop complete crushing solutions rather than supplying individual machines alone.

Why Choose UNIQUEMAC for a Limestone Crushing Plant?

UNIQUEMAC is a manufacturer and supplier of crushing, screening, and feeding equipment, with experience in exporting crushing solutions to Latin America, Southeast Asia, Africa, and other international markets.

For customers planning a limestone crushing plant, UNIQUEMAC can provide support covering different stages of a project, including:

Customized Crushing Plant Design

The crushing process can be designed according to the customer’s raw material, feed size, required capacity, final product sizes, and application.

Complete Equipment Configuration

Instead of selecting individual machines separately, customers can receive a complete crushing and screening solution with equipment matched according to the production process.

Manufacturing and Quality Control

UNIQUEMAC’s project information states that its equipment manufacturing follows ISO 9001 quality management requirements and includes factory testing.

Installation and Commissioning Support

For international projects, installation and commissioning support can help customers put the crushing plant into operation more efficiently.

Spare Parts and After-Sales Service

Reliable spare parts supply and technical support are important for maintaining crushing equipment over the long term.

UNIQUEMAC’s project portfolio includes installations in more than 50 countries, according to the supplied project information.

Frequently Asked Questions About 250 TPH Limestone Crushing Plants

What is a 250 TPH limestone crushing plant?

A 250 TPH limestone crushing plant is a complete crushing and screening system designed to process approximately 250 tons of limestone per hour under the specified operating conditions.

The actual capacity depends on factors such as feed size, material characteristics, moisture content, crusher settings, screening efficiency, and operating conditions.

What equipment is used in this 250 TPH limestone crushing plant?

The project uses a GZT1148 vibrating feeder, PE750×1060 jaw crusher, PFW1315 impact crusher, and 3YK2160 vibrating screen.

Together, these machines form a two-stage crushing and screening process.

What sizes of aggregates can this plant produce?

According to the supplied project configuration, the target products are:

0–5 mm, 5–10 mm, 10–20 mm, 20–31.5 mm, and 31.5–40 mm.

The final product sizes can vary depending on crusher settings, screen configuration, feed characteristics, and project requirements.

Is an impact crusher suitable for limestone?

Impact crushers can be suitable for limestone because limestone is generally a relatively moderate-hardness material with good crushability.

An impact crusher can also help produce cubical-shaped aggregates, which can be beneficial for certain construction applications.

The appropriate crusher should nevertheless be selected based on the actual limestone characteristics and required products.

Can UNIQUEMAC design a customized limestone crushing plant?

Yes. According to the supplied company information, UNIQUEMAC provides customized crushing solutions based on specific material and project requirements.

Customers should provide information such as material type, maximum feed size, required capacity, desired output sizes, and application so that the crushing process can be properly designed.

How much does a 250 TPH limestone crushing plant cost?

The price of a 250 TPH limestone crushing plant depends on the equipment configuration, crusher models, screening requirements, conveyors, electrical and control systems, structural requirements, installation conditions, and other project-specific factors.

For an accurate quotation, it is better to request a customized plant design rather than rely on a generic equipment price.

Looking for a 250 TPH Limestone Crushing Plant?

If you are planning a limestone crushing plant, fixed crushing line, or aggregate production project, UNIQUEMAC can help develop a crushing solution based on your specific requirements.

To receive a preliminary crushing plant proposal, you can provide:

• Material type
• Maximum feed size
• Required capacity
• Desired final product sizes
• Application of the aggregates
• Project location

Based on this information, the technical team can evaluate the appropriate crushing and screening configuration for your project.

Conclusion

This 250 TPH limestone crushing plant in Mexico was developed for the aggregate requirements of a railway infrastructure project. The combination of a GZT1148 vibrating feeder, PE750×1060 jaw crusher, PFW1315 impact crusher, and 3YK2160 vibrating screen creates a two-stage crushing and screening process for producing multiple limestone aggregate sizes.

The project highlights an important principle in crushing plant design: the best solution is not simply the machine with the largest capacity, but the complete process that matches the material, feed size, production target, final aggregate specifications, and application.

For customers looking for a 250 TPH limestone crushing plant, especially for railway aggregates, concrete, road construction, or other infrastructure projects, a properly engineered fixed crushing line can provide a reliable foundation for long-term aggregate production.

UNIQUEMAC — Customized Crushing & Screening Solutions for Global Aggregate Projects.